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1

Near-zero Emissions Oxy-combustion Flue Gas Purification  

NLE Websites -- All DOE Office Websites (Extended Search)

Near-zero Emissions Oxy-combustion Near-zero Emissions Oxy-combustion Flue Gas Purification Background The mission of the U.S. Department of Energy's (DOE) Existing Plants, Emissions & Capture (EPEC) R&D Program is to develop innovative environmental control technologies to enable full use of the nation's vast coal reserves, while allowing the current fleet of coal-fired power plants to comply with existing and emerging environmental regulations. The EPEC R&D Program portfolio of post- and

2

Near-Zero Emissions Oxy-Combustion Flue Gas Purification  

Science Conference Proceedings (OSTI)

The objectives of this project were to carry out an experimental program to enable development and design of near zero emissions (NZE) CO{sub 2} processing unit (CPU) for oxy-combustion plants burning high and low sulfur coals and to perform commercial viability assessment. The NZE CPU was proposed to produce high purity CO{sub 2} from the oxycombustion flue gas, to achieve > 95% CO{sub 2} capture rate and to achieve near zero atmospheric emissions of criteria pollutants. Two SOx/NOx removal technologies were proposed depending on the SOx levels in the flue gas. The activated carbon process was proposed for power plants burning low sulfur coal and the sulfuric acid process was proposed for power plants burning high sulfur coal. For plants burning high sulfur coal, the sulfuric acid process would convert SOx and NOx in to commercial grade sulfuric and nitric acid by-products, thus reducing operating costs associated with SOx/NOx removal. For plants burning low sulfur coal, investment in separate FGD and SCR equipment for producing high purity CO{sub 2} would not be needed. To achieve high CO{sub 2} capture rates, a hybrid process that combines cold box and VPSA (vacuum pressure swing adsorption) was proposed. In the proposed hybrid process, up to 90% of CO{sub 2} in the cold box vent stream would be recovered by CO{sub 2} VPSA and then it would be recycled and mixed with the flue gas stream upstream of the compressor. The overall recovery from the process will be > 95%. The activated carbon process was able to achieve simultaneous SOx and NOx removal in a single step. The removal efficiencies were >99.9% for SOx and >98% for NOx, thus exceeding the performance targets of >99% and >95%, respectively. The process was also found to be suitable for power plants burning both low and high sulfur coals. Sulfuric acid process did not meet the performance expectations. Although it could achieve high SOx (>99%) and NOx (>90%) removal efficiencies, it could not produce by-product sulfuric and nitric acids that meet the commercial product specifications. The sulfuric acid will have to be disposed of by neutralization, thus lowering the value of the technology to same level as that of the activated carbon process. Therefore, it was decided to discontinue any further efforts on sulfuric acid process. Because of encouraging results on the activated carbon process, it was decided to add a new subtask on testing this process in a dual bed continuous unit. A 40 days long continuous operation test confirmed the excellent SOx/NOx removal efficiencies achieved in the batch operation. This test also indicated the need for further efforts on optimization of adsorption-regeneration cycle to maintain long term activity of activated carbon material at a higher level. The VPSA process was tested in a pilot unit. It achieved CO{sub 2} recovery of > 95% and CO{sub 2} purity of >80% (by vol.) from simulated cold box feed streams. The overall CO{sub 2} recovery from the cold box VPSA hybrid process was projected to be >99% for plants with low air ingress (2%) and >97% for plants with high air ingress (10%). Economic analysis was performed to assess value of the NZE CPU. The advantage of NZE CPU over conventional CPU is only apparent when CO{sub 2} capture and avoided costs are compared. For greenfield plants, cost of avoided CO{sub 2} and cost of captured CO{sub 2} are generally about 11-14% lower using the NZE CPU compared to using a conventional CPU. For older plants with high air intrusion, the cost of avoided CO{sub 2} and capture CO{sub 2} are about 18-24% lower using the NZE CPU. Lower capture costs for NZE CPU are due to lower capital investment in FGD/SCR and higher CO{sub 2} capture efficiency. In summary, as a result of this project, we now have developed one technology option for NZE CPU based on the activated carbon process and coldbox-VPSA hybrid process. This technology is projected to work for both low and high sulfur coal plants. The NZE CPU technology is projected to achieve near zero stack emissions

Minish Shah; Nich Degenstein; Monica Zanfir; Rahul Solunke; Ravi Kumar; Jennifer Bugayong; Ken Burgers

2012-06-30T23:59:59.000Z

3

Oxy-Combustion Burner and Integrated Pollutant Removal Research and Development Test Facility  

SciTech Connect

A high flame temperature oxy-combustion test facility consisting of a 5 MWe equivalent test boiler facility and 20 KWe equivalent IPR® was constructed at the Hammond, Indiana manufacturing site. The test facility was operated natural gas and coal fuels and parametric studies were performed to determine the optimal performance conditions and generated the necessary technical data required to demonstrate the technologies are viable for technical and economic scale-up. Flame temperatures between 4930-6120F were achieved with high flame temperature oxy-natural gas combustion depending on whether additional recirculated flue gases are added to balance the heat transfer. For high flame temperature oxy-coal combustion, flame temperatures in excess of 4500F were achieved and demonstrated to be consistent with computational fluid dynamic modeling of the burner system. The project demonstrated feasibility and effectiveness of the Jupiter Oxygen high flame temperature oxy-combustion process with Integrated Pollutant Removal process for CCS and CCUS. With these technologies total parasitic power requirements for both oxygen production and carbon capture currently are in the range of 20% of the gross power output. The Jupiter Oxygen high flame temperature oxy-combustion process has been demonstrated at a Technology Readiness Level of 6 and is ready for commencement of a demonstration project.

Mark Schoenfield; Manny Menendez; Thomas Ochs; Rigel Woodside; Danylo Oryshchyn

2012-09-30T23:59:59.000Z

4

Zero Liquid Discharge (ZLD) System for Flue-Gas Derived Water From Oxy-Combustion Process  

Science Conference Proceedings (OSTI)

Researchers at the National Energy Technology Laboratory (NETL) located in Albany, Oregon, have patented a process - Integrated Pollutant Removal (IPR) that uses off-the-shelf technology to produce a sequestration ready CO{sub 2} stream from an oxy-combustion power plant. Capturing CO{sub 2} from fossil-fuel combustion generates a significant water product which can be tapped for use in the power plant and its peripherals. Water condensed in the IPR{reg_sign} process may contain fly ash particles, sodium (from pH control), and sulfur species, as well as heavy metals, cations and anions. NETL is developing a treatment approach for zero liquid discharge while maximizing available heat from IPR. Current treatment-process steps being studied are flocculation/coagulation, for removal of cations and fine particles, and reverse osmosis, for anion removal as well as for scavenging the remaining cations. After reverse osmosis process steps, thermal evaporation and crystallization steps will be carried out in order to build the whole zero liquid discharge (ZLD) system for flue-gas condensed wastewater. Gypsum is the major product from crystallization process. Fast, in-line treatment of water for re-use in IPR seems to be one practical step for minimizing water treatment requirements for CO{sub 2} capture. The results obtained from above experiments are being used to build water treatment models.

Sivaram Harendra; Danylo Oryshchyn; Thomas Ochs; Stephen J. Gerdemann; John Clark

2011-10-16T23:59:59.000Z

5

Jupiter Oxy-combustion and Integrated Pollutant Removal for the Existing Coal Fired Power Generation Fleet  

NLE Websites -- All DOE Office Websites (Extended Search)

Jupiter Oxy-combustion and Integrated Jupiter Oxy-combustion and Integrated Pollutant Removal for the Existing Coal Fired Power Generation Fleet Background The mission of the U.S. Department of Energy/National Energy Technology Laboratory (DOE/NETL) Existing Plants, Emissions & Capture (EPEC) Research & Development (R&D) Program is to develop innovative environmental control technologies to enable full use of the nation's vast coal reserves, while at the same time allowing the current fleet of

6

Oxy-combustion Boiler Material Development  

NLE Websites -- All DOE Office Websites (Extended Search)

Oxy-combustion Boiler Material Oxy-combustion Boiler Material Development Background In an oxy-combustion system, combustion air (79 percent nitrogen, 21 percent oxygen) is replaced by oxygen and recycled flue gas (carbon dioxide [CO 2 ] and water), eliminating nitrogen in the flue gas stream. When applied to an existing boiler, the flue gas recirculation rate is adjusted to enable the boiler to maintain its original air-fired heat absorption performance, eliminating the need to derate the boiler

7

Near-Zero Emissions Oxy-Combustion Flue Gas Purification Task 2: SOx/Nox/Hg Removal for High Sulfur Coal  

Science Conference Proceedings (OSTI)

The goal of this project is to develop a near-zero emissions flue gas purification technology for existing PC (pulverized coal) power plants that are retrofitted with oxy-combustion technology. The objective of Task 2 of this project was to evaluate an alternative method of SOx, NOx and Hg removal from flue gas produced by burning high sulfur coal in oxy-combustion power plants. The goal of the program was not only to investigate a new method of flue gas purification but also to produce useful acid byproduct streams as an alternative to using a traditional FGD and SCR for flue gas processing. During the project two main constraints were identified that limit the ability of the process to achieve project goals. 1) Due to boiler island corrosion issues >60% of the sulfur must be removed in the boiler island with the use of an FGD. 2) A suitable method could not be found to remove NOx from the concentrated sulfuric acid product, which limits sale-ability of the acid, as well as the NOx removal efficiency of the process. Given the complexity and safety issues inherent in the cycle it is concluded that the acid product would not be directly saleable and, in this case, other flue gas purification schemes are better suited for SOx/NOx/Hg control when burning high sulfur coal, e.g. this project's Task 3 process or a traditional FGD and SCR.

Nick Degenstein; Minish Shah; Doughlas Louie

2012-05-01T23:59:59.000Z

8

Near-Zero Emissions Oxy-Combustion Flue Gas Purification - Power Plant Performance  

SciTech Connect

A technical feasibility assessment was performed for retrofitting oxy-fuel technology to an existing power plant burning low sulfur PRB fuel and high sulfur bituminous fuel. The focus of this study was on the boiler/power generation island of a subcritical steam cycle power plant. The power plant performance in air and oxy-firing modes was estimated and modifications required for oxy-firing capabilities were identified. A 460 MWe (gross) reference subcritical PC power plant was modeled. The reference air-fired plant has a boiler efficiency (PRB/Bituminous) of 86.7%/89.3% and a plant net efficiency of 35.8/36.7%. Net efficiency for oxy-fuel firing including ASU/CPU duty is 25.6%/26.6% (PRB/Bituminous). The oxy-fuel flue gas recirculation flow to the boiler is 68%/72% (PRB/bituminous) of the flue gas (average O{sub 2} in feed gas is 27.4%/26.4%v (PRB/bituminous)). Maximum increase in tube wall temperature is less than 10ºF for oxy-fuel firing. For oxy-fuel firing, ammonia injected to the SCR was shut-off and the FGD is applied to remove SOx from the recycled primary gas stream and a portion of the SOx from the secondary stream for the high sulfur bituminous coal. Based on CFD simulations it was determined that at the furnace outlet compared to air-firing, SO{sub 3}/SO{sub 2} mole ratio is about the same, NOx ppmv level is about the same for PRB-firing and 2.5 times for bituminous-firing due to shutting off the OFA, and CO mole fraction is approximately double. A conceptual level cost estimate was performed for the incremental equipment and installation cost of the oxyfuel retrofit in the boiler island and steam system. The cost of the retrofit is estimated to be approximately 81 M$ for PRB low sulfur fuel and 84 M$ for bituminous high sulfur fuel.

Andrew Seltzer; Zhen Fan

2011-03-01T23:59:59.000Z

9

Integration of Ion Transport Membrane Technology with Oxy-Combustion Power Generation Systems  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute (EPRI) in conjunction with Air Products and Chemicals, Inc., (AP) has reviewed oxy-combustion, a methodology to burn coal using oxygen rather than air to aid in removing carbon by producing a more concentrated stream of carbon dioxide (CO2) for remediation, which reduces the cost and energy required to do so. This report discusses the ion transport membrane (ITM), a technology developed by AP under a Cooperative Agreement with the United States ...

2013-09-17T23:59:59.000Z

10

Oxy-Combustion Boiler Material Development  

SciTech Connect

Under U.S. Department of Energy Cooperative Agreement No. DE-NT0005262 Foster Wheeler North America Corp conducted a laboratory test program to determine the effect of oxy-combustion on boiler tube corrosion. In this program, CFD modeling was used to predict the gas compositions that will exist throughout and along the walls of air-fired and oxy-fired boilers operating with low to high sulfur coals. Test coupons of boiler tube materials were coated with deposits representative of those coals and exposed to the CFD predicted flue gases for up to 1000 hours. The tests were conducted in electric tube furnaces using oxy-combustion and air-fired flue gases synthesized from pressurized cylinders. Following exposure, the test coupons were evaluated to determine the total metal wastage experienced under air and oxy-combustions conditions and materials recommendations were made. Similar to air-fired operation, oxy-combustion corrosion rates were found to vary with the boiler material, test temperature, deposit composition, and gas composition. Despite this, comparison of air-fired and oxy-fired corrosion rates showed that oxy-firing rates were, for the most part, similar to, if not lower than those of air-firing; this finding applied to the seven furnace waterwall materials (wrought and weld overlay) and the ten superheater/reheater materials (wrought and weld overlay) that were tested. The results of the laboratory oxy-combustion tests, which are based on a maximum bulk flue gas SO2 level of 3200 ppmv (wet) / 4050 ppmv (dry), suggest that, from a corrosion standpoint, the materials used in conventional subcritical and supercritical, air-fired boilers should also be suitable for oxy-combustion retrofits. Although the laboratory test results are encouraging, they are only the first step of a material evaluation process and it is recommended that follow-on corrosion tests be conducted in coal-fired boilers operating under oxy-combustion to provide longer term (one to two year) data. The test program details and data are presented herein.

Gagliano, Michael; Seltzer, Andrew; Agarwal, Hans; Robertson, Archie; Wang, Lun

2012-01-31T23:59:59.000Z

11

Oxy-Combustion Boiler Material Development  

SciTech Connect

Under U.S. Department of Energy Cooperative Agreement No. DE-NT0005262 Foster Wheeler North America Corp conducted a laboratory test program to determine the effect of oxy-combustion on boiler tube corrosion. In this program, CFD modeling was used to predict the gas compositions that will exist throughout and along the walls of air-fired and oxy-fired boilers operating with low to high sulfur coals. Test coupons of boiler tube materials were coated with deposits representative of those coals and exposed to the CFD predicted flue gases for up to 1000 hours. The tests were conducted in electric tube furnaces using oxy-combustion and air-fired flue gases synthesized from pressurized cylinders. Following exposure, the test coupons were evaluated to determine the total metal wastage experienced under air and oxy-combustions conditions and materials recommendations were made. Similar to air-fired operation, oxy-combustion corrosion rates were found to vary with the boiler material, test temperature, deposit composition, and gas composition. Despite this, comparison of air-fired and oxy-fired corrosion rates showed that oxy-firing rates were, for the most part, similar to, if not lower than those of air-firing; this finding applied to the seven furnace waterwall materials (wrought and weld overlay) and the ten superheater/reheater materials (wrought and weld overlay) that were tested. The results of the laboratory oxy-combustion tests, which are based on a maximum bulk flue gas SO{sub 2} level of 3200 ppmv (wet) / 4050 ppmv (dry), suggest that, from a corrosion standpoint, the materials used in conventional subcritical and supercritical, air-fired boilers should also be suitable for oxy-combustion retrofits. Although the laboratory test results are encouraging, they are only the first step of a material evaluation process and it is recommended that follow-on corrosion tests be conducted in coal-fired boilers operating under oxy-combustion to provide longer term (one to two year) data. The test program details and data are presented herein.

Michael Gagliano; Andrew Seltzer; Hans Agarwal; Archie Robertson; Lun Wang

2012-01-31T23:59:59.000Z

12

Near-Zero Emissions Oxy-Combustion Flue Gas Purification Task 3: SOx/NOx/Hg Removal for Low Sulfur Coal  

Science Conference Proceedings (OSTI)

The goal of this project was to develop a near-zero emissions flue gas purification technology for existing PC (pulverized coal) power plants that are retrofitted with oxycombustion technology. The objective of Task 3 of this project was to evaluate an alternative method of SOx, NOx and Hg removal from flue gas produced by burning low sulfur coal in oxy-combustion power plants. The goal of the program was to conduct an experimental investigation and to develop a novel process for simultaneously removal of SOx and NOx from power plants that would operate on low sulfur coal without the need for wet-FGD & SCRs. A novel purification process operating at high pressures and ambient temperatures was developed. Activated carbon??s catalytic and adsorbent capabilities are used to oxidize the sulfur and nitrous oxides to SO{sub 3} and NO{sub 2} species, which are adsorbed on the activated carbon and removed from the gas phase. Activated carbon is regenerated by water wash followed by drying. The development effort commenced with the screening of commercially available activated carbon materials for their capability to remove SO{sub 2}. A bench-unit operating in batch mode was constructed to conduct an experimental investigation of simultaneous SOx and NOx removal from a simulated oxyfuel flue gas mixture. Optimal operating conditions and the capacity of the activated carbon to remove the contaminants were identified. The process was able to achieve simultaneous SOx and NOx removal in a single step. The removal efficiencies were >99.9% for SOx and >98% for NOx. In the longevity tests performed on a batch unit, the retention capacity could be maintained at high level over 20 cycles. This process was able to effectively remove up to 4000 ppm SOx from the simulated feeds corresponding to oxyfuel flue gas from high sulfur coal plants. A dual bed continuous unit with five times the capacity of the batch unit was constructed to test continuous operation and longevity. Full-automation was implemented to enable continuous operation (24/7) with minimum operator supervision. Continuous run was carried out for 40 days. Very high SOx (>99.9%) and NOx (98%) removal efficiencies were also achieved in a continuous unit. However, the retention capacity of carbon beds for SOx and NOx was decreased from ~20 hours to ~10 hours over a 40 day period of operation, which was in contrast to the results obtained in a batch unit. These contradictory results indicate the need for optimization of adsorption-regeneration cycle to maintain long term activity of activated carbon material at a higher level and thus minimize the capital cost of the system. In summary, the activated carbon process exceeded performance targets for SOx and NOx removal efficiencies and it was found to be suitable for power plants burning both low and high sulfur coals. More efforts are needed to optimize the system performance.

Monica Zanfir; Rahul Solunke; Minish Shah

2012-06-01T23:59:59.000Z

13

Oxy-Combustion Activities Worldwide  

Science Conference Proceedings (OSTI)

This report reviews oxy-combustion development activities throughout the world. The report opens by reviewing carbon dioxide (CO2) capture technologies and their relative advantages and disadvantages before focusing on oxy-combustion concepts and giving details on potential designs. It then delves into each sub-system (air separation, oxy boiler, gas quality control, and CO2 purification) giving the latest updates on technologies and associated development issues, pulling from work reported at the Second...

2012-06-26T23:59:59.000Z

14

NETL: IEP – Post-Combustion CO2 Emissions Control - Oxy-Combustion  

NLE Websites -- All DOE Office Websites (Extended Search)

IEP - Oxy-Combustion CO2 Emissions Control IEP - Oxy-Combustion CO2 Emissions Control Oxy-Combustion Technology Development for Industrial-Scale Boiler Applications Project No.: DE-NT0005290 Alstom oxy-combustion test facility Alstom oxy-combustion test facility. Alstom will develop an oxyfuel firing system design specifically for retrofit to tangential-fired (T-fired) boilers and provide information to address the technical gaps for commercial boiler design. Several oxyfuel system design concepts, such as internal flue gas recirculation and various oxygen injection schemes, will be evaluated for cost-effectiveness in satisfying furnace design conditions in a T-fired boiler. The evaluation will use an array of tools, including Alstom's proprietary models and design codes, along with 3-D computational fluid dynamics modeling. A

15

Characterization of Oxy-combustion Impacts in Existing Coal-fired Boilers  

Science Conference Proceedings (OSTI)

Reaction Engineering International (REI) managed a team of experts from University of Utah, Siemens Energy, Praxair, Vattenfall AB, Sandia National Laboratories, Brigham Young University (BYU) and Corrosion Management Ltd. to perform multi-scale experiments, coupled with mechanism development, process modeling and CFD modeling, for both applied and fundamental investigations. The primary objective of this program was to acquire data and develop tools to characterize and predict impacts of CO2 flue gas recycle and burner feed design on flame characteristics (burnout, NOx, SOx, mercury and fine particle emissions, heat transfer) and operational concerns (fouling, slagging and corrosion) inherent in the retrofit of existing coal-fired boilers for oxy-coal combustion. Experimental work was conducted at Sandia National Laboratories Entrained Flow Reactor, the University of Utah Industrial Combustion Research Facility, and Brigham Young University. Process modeling and computational fluid dynamics (CFD) modeling was performed at REI. Successful completion of the project objectives resulted in the following key deliverables: 1) Multi-scale test data from 0.1 kW bench-scale, 100 kW and 200 kW laboratory-scale, and 1 MW semi-industrial scale combustors that describe differences in flame characteristics, fouling, slagging and corrosion for coal combustion under air-firing and oxygen-firing conditions, including sensitivity to oxy-burner design and flue gas recycle composition. 2) Validated mechanisms developed from test data that describe fouling, slagging, waterwall corrosion, heat transfer, char burnout and sooting under coal oxy-combustion conditions. The mechanisms were presented in a form suitable for inclusion in CFD models or process models. 3) Principles to guide design of pilot-scale and full-scale coal oxy-firing systems and flue gas recycle configurations, such that boiler operational impacts from oxy-combustion retrofits are minimized. 4) Assessment of oxy-combustion impacts in two full-scale coal-fired utility boiler retrofits based on computational fluid dynamics (CFD) modeling of air-fired and oxygen-fired operation. This research determined that it is technically feasible to retrofit the combustion system in an air-fired boiler for oxy-fired operation. The impacts of CO2 flue gas recycle and burner design on flame characteristics (burnout, NOx, SOx, mercury and fine particle emissions, heat transfer) and operational concerns (fouling, slagging and corrosion) were minimal, with the exception of high sulfur levels resulting from untreated flue gas recycle with medium and high-sulfur coals. This work focused on combustion in the radiant and convective sections of the boiler and did not address boiler system integration issues, plant efficiencies, impacts on downstream air pollution control devices, or CO2 capture and compression. The experimental data, oxy-firing system principles and oxy-combustion process mechanisms provided by this work can be used by electric utilities, boiler OEMs, equipment suppliers, design firms, software vendors, consultants and government agencies to assess retrofit applications of oxy-combustion technologies to existing boilers and to guide development of new designs.

Adams, Bradley; Davis, Kevin; Senior, Constance; Shim, Hong Shim; Otten, Brydger; Fry, Andrew; Wendt, Jost; Eddings, Eric; Paschedag, Alan; Shaddix, Christopher; Cox, William; Tree, Dale

2013-09-30T23:59:59.000Z

16

Plant-Wide Performance and Cost Analysis of Ion Transport Membrane-Based Oxy-Combustion Power Generation Systems  

Science Conference Proceedings (OSTI)

The Electric Power Research Institute (EPRI) in conjunction with Air Products and Chemicals, Inc., (AP) and WorleyParsons, Inc. (WP) has reviewed and modeled oxy-combustion, a method of burning coal using oxygen rather than air to facilitate the separation, capture, and remediation of carbon by producing a flue gas stream more concentrated in carbon dioxide (CO2). This report presents modeling results for oxy-combustion systems using two different oxygen separation techniques: traditional ...

2013-12-03T23:59:59.000Z

17

Oxy-Combustion Activities Worldwide: 2013 Update  

Science Conference Proceedings (OSTI)

This report provides a review of oxy-combustion development activities throughout the world, most of which occurred in the calendar year of 2013. The report opens by introducing oxy-combustion and discussing its relative advantages and disadvantages and associated costs. It then delves into each sub-system (air separation, oxy boiler, gas quality control system [GQCS], and carbon dioxide [CO2] purification) giving the latest updates on technologies and associated development issues in ...

2013-12-18T23:59:59.000Z

18

Characterization of Oxy-combustion Impacts in Existing Coal-fired Boilers  

SciTech Connect

This report summarizes Year 1 results of a research program designed to use multi-scale experimental studies and fundamental theoretical models to characterize and predict the impacts of retrofit of existing coal-fired utility boilers for oxy-combustion. Through the course of Year 1 activities, great progress was made toward understanding the issues associated with oxy-combustion retrofit of coal-fired boilers. All four Year 1 milestones and objectives have been, or will be, completed on schedule and within budget. Progress in the four milestone areas may be summarized as follows: University of Utah has performed size segregated ash composition measurements in the Oxy-Fuel Combustor (OFC). These experiments indicate that oxy-combustion retrofit may impact ash aerosol mineral matter composition. Both flame temperature and flue gas composition have been observed to influence the concentration of calcium, magnesium and iron in the fine particulate. This could in turn impact boiler fouling and slagging. Sandia National Labs has shown that char oxidation rate is dependent on particle size (for sizes between 60 and 100 microns) by performing fundamental simulations of reacting char particles. These predictions will be verified by making time-resolved optical measurements of char particle temperature, velocity and size in bench-scale experiments before the end of Year 1. REI and Siemens have completed the design of an oxy-research burner that will be mounted on University of Utahs pilot-scale furnace, the L1500. This burner will accommodate a wide range of O2, FGR and mixing strategies under conditions relevant for utility boiler operation. Through CFD modeling of the different burner designs, it was determined that the key factor influencing flame stabilization location is particle heat-up rate. The new oxy-research burner and associated equipment is scheduled for delivery before the end of Year 1. REI has completed a literature survey of slagging and fouling mechanisms in coal-fired power plants to understand key issues influencing these deposition regimes and infer their behavior under oxy-fired conditions. Based on the results of this survey, an algorithm for integrating slagging predictions into CFD models was outlined. This method accounts for ash formation, particle impaction and sticking, deposit growth and physical properties and impact of the deposit on system flow and heat transfer. A model for fouling in the back pass has also been identified which includes vaporization of sodium, deposition of sodium sulfate on fly ash particles and tube surfaces, and deposit growth rate on tubes. In Year 1, REI has also performed a review of the literature describing corrosion in order to understand the behavior of oxidation, sulfidation, chloridation, and carburization mechanisms in air-fired and oxy-combustion systems. REI and Vattenfall have met and exchanged information concerning oxy-coal combustion mechanisms for CFD simulations currently used by Vattenfall. In preparation for Year 2 of this program, two coals (North Antelope PRB, Western bituminous) have been ordered, pulverized and delivered to the University of Utah and Sandia National Labs. Materials for the corrosion experiments have been identified, suppliers located, and a schedule for equipment fabrication and shakedown has been established. Finally, a flue gas recycle system has been designed and is being constructed for the OFC.

Bradley Adams; Andrew Fry; Constance Senior; Hong Shim; Huafeng Wang; Jost Wendt; Christopher Shaddix

2009-06-30T23:59:59.000Z

19

Development of Cost Effective Oxy-Combustion Technology for Retrofitting Coal-Fired Boilers  

NLE Websites -- All DOE Office Websites (Extended Search)

Cost effeCtive Cost effeCtive oxy-Combustion teChnology for retrofitting Coal-fireD boilers Background Electric power generation from fossil fuels represents one of the largest contributors to greenhouse gas emissions, not just in the United States, but throughout the world. Various technologies and concepts are being investigated as means to mitigate carbon dioxide (CO 2 ) emissions. The concept of pulverized coal (PC) oxy-combustion is one potential economical solution, whereby coal is combusted in an enriched oxygen environment using pure oxygen diluted with recycled flue gas. In this manner, the flue gas is composed primarily of CO 2 and H 2 O, so that a concentrated stream of CO 2 is produced by simply condensing the water in the exhaust stream. An advantage of

20

NETL: IEP ? Oxy-Combustion CO2 Emissions Control - Development...  

NLE Websites -- All DOE Office Websites (Extended Search)

to determine the performance of the oxy-combustion process for the respective boiler configurations. Phase I will evaluate the effect of coal rank used in existing...

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21

NETL: IEP – Oxy-Combustion CO2 Emissions Control - Oxygen-Based PC Boiler  

NLE Websites -- All DOE Office Websites (Extended Search)

– Oxy-Combustion CO2 Emissions Control – Oxy-Combustion CO2 Emissions Control Oxygen-Based PC Boiler Project No.: FC26-04NT42207 & FC26-03NT41736 Spatial Comparison of an Air-Fired Furnace versus an Oxygen-Fired Furnace. Spatial Comparison of an Air-Fired Furnace versus an Oxygen-Fired Furnace. Foster Wheeler North America Corporation will conduct to two projects to improve carbon dioxide (CO2) capture technology by developing a conceptual pulverized coal-fired boiler system design using oxygen as the combustion medium. Using oxygen instead of air produces a flue gas with a high CO2 concentration, which will facilitate CO2 capture for subsequent sequestration. The first project will develop modeling simulations that will lead to a conceptual design that addresses costs, performance, and emissions, and

22

A Mechanistic Investigation of Nitrogen Evolution and Corrosion with Oxy-Combustion  

SciTech Connect

A premixed, staged, down-fired, pulverized coal reactor and a flat flame burner were used to study the evolution of nitrogen in coal contrasting differences in air and oxy-combustion. In the premixed reactor, the oxidizer was staged to produce a fuel rich zone followed by a burnout zone. The initial nominal fuel rich zone stoichiometric ratio (S.R.) of 0.85 selected produced higher NO reductions in the fuel rich region under oxy-combustion conditions. Air was found to be capable of similar NO reductions when the fuel rich zone was at a much lower S.R. of 0.65. At a S.R. of 0.85, oxy-combustion was measured to have higher CO, unburned hydrocarbons, HCN and NH{sub 3} in the fuel rich region than air at the same S.R. There was no measured difference in the initial formation of NO. The data suggest devolatilization and initial NO formation is similar for the two oxidizers when flame temperatures are the same, but the higher CO{sub 2} leads to higher concentrations of CO and nitrogen reducing intermediates at a given equivalence ratio which increases the ability of the gas phase to reduce NO. These results are supported by flat flame burner experiments which show devolatilization of nitrogen from the coal and char to be similar for air and oxy-flame conditions at a given temperature. A model of premixed combustion containing devolatilization, char oxidation and detailed kinetics captures most of the trends seen in the data. The model suggests CO is high in oxy-combustion because of dissociation of CO{sub 2}. The model also predicts a fraction (up to 20%, dependent on S.R.) of NO in air combustion can be formed via thermal processes with the source being nitrogen from the air while in oxy-combustion equilibrium drives a reduction in NO of similar magnitude. The data confirm oxy-combustion is a superior oxidizer to air for NO control because NO reduction can be achieved at higher S.R. producing better char burnout in addition to NO from recirculated flue gas being reduced as it passes back through the flame.

Dale Tree; Andrew Mackrory; Thomas Fletcher

2008-12-31T23:59:59.000Z

23

Strategies for Improving Effi ciencies in Oxy-Combustion Retrofits  

NLE Websites -- All DOE Office Websites (Extended Search)

CO 2 and H 2 O Spectrum - Intensity Shown as Log Value Improving Oxy-Combustion Power Plant Effi ciency Coal Into System Coal Thermal Power 4,003x10 BTUhr 6 Heat to...

24

NETL: IEP – Post-Combustion CO2 Emissions Control - Oxy-Combustion Boiler  

NLE Websites -- All DOE Office Websites (Extended Search)

Oxy-Combustion Boiler Material Development Oxy-Combustion Boiler Material Development Project No.: DE-NT0005262 CLICK ON IMAGE TO ENLARGE Foster Wheeler Oxy-combustion CFD Graphic The objectives of this Foster Wheeler Corporation-managed program are to assess the corrosion characteristics of oxy-combustion relative to air-fired combustion; identify the corrosion mechanisms involved; and determine the effects of oxy-combustion on conventional boiler tube materials, conventional protective coatings, and alternative materials and coatings when operating with high to low sulfur coals. The program involves the prediction of oxy-combustion gas compositions by computational fluid dynamic calculations, exposure of coupons of boiler materials and coverings coated with coal ash deposit to simulated oxy-combustion gases in electric

25

NETL: IEP-In-House Oxy-Combustion CO2 Emissions Control  

NLE Websites -- All DOE Office Websites (Extended Search)

slag in oxy-combustion systems; (3) develop solutions for the potential low-pressure steam turbine imbalance in retrofit applications; (4) and support development of improved...

26

Task 2 Materials for Advanced Boiler and Oxy-combustion Systems (NETL-US)  

Science Conference Proceedings (OSTI)

Exposures were completed to ~1400 hr. Analysis of kinetics are close to completion. No oxy-combustion gas phase effects were found at 700{degrees}C.

Holcomb, Gordon R. [NETL; Tylczak, Joseph [NETL

2013-08-28T23:59:59.000Z

27

NETL: IEP – Oxy-Combustion CO2 Emissions Control - OTM-Based Oxycombustion  

NLE Websites -- All DOE Office Websites (Extended Search)

OTM-Based Oxycombustion for CO2 Recovery OTM-Based Oxycombustion for CO2 Recovery Project No.: FC26-01NT41147 & FC26-07NT43088 Praxair Advanced Boiler Praxair Advanced Boiler Praxair, Inc. will conduct two projects to develop and demonstrate the integration of a novel, ceramic oxygen transport membrane (OTM) with the combustion process to enhance boiler efficiency. The economics of oxy-combustion processes are currently limited by the parasitic power required for oxygen (O2) production using cryogenic air separation units (ASU). OTMs can be integrated such that there is minimal need for air compression and the parasitic power consumption required for O2 production is reduced by 70 to 80 percent as compared to a cryogenic ASU. Praxair will design, construct, and operate a bench-scale OTM at the

28

Characterization of Oxy-combustion Impacts in Existing Coal-fired Boilers  

NLE Websites -- All DOE Office Websites (Extended Search)

Characterization of Oxy-combustion Characterization of Oxy-combustion Impacts in Existing Coal-fired Boilers Background Technology and policy options are being investigated for mitigating CO 2 emissions. Electric power generation represents one of the largest CO 2 contributors in the United States and is expected to grow with fossil fuels continuing to be the dominant fuel source. Oxy-combustion is a developing technology that could become part of a national carbon capture effort to mitigate climate change. At a pulverized coal

29

NETL: Staged, High-Pressure Oxy-Combustion Technology: Development and  

NLE Websites -- All DOE Office Websites (Extended Search)

Oxy-Combustion CO2 Emissions Control Oxy-Combustion CO2 Emissions Control Staged, High-Pressure Oxy-Combustion Technology: Development and Scale-up Project No.: DE-FE0009702 Washington University in St. Louis is developing a unique pressurized system to capture carbon from coal-fired power plants that incorporates a fuel-staged combustion approach. By staging the combustion, the temperature and heat transfer can be controlled. The potential benefits of the process are: higher efficiency, reduced process gas volume, increased radiative heat transfer, reduced oxygen demands, reduced capital equipment costs, increased CO2 purity entering the carbon compression and purification unit, and reduced auxiliary power demands. These benefits are expected to yield a lower cost of electricity than alternative approaches to pressurized oxy-combustion.

30

NETL: IEP – Oxy-Combustion CO2 Emissions Control - CANMET CO2  

NLE Websites -- All DOE Office Websites (Extended Search)

– Oxy-Combustion CO2 Emissions Control – Oxy-Combustion CO2 Emissions Control CANMET CO2 Consortium-O2/CO2 Recycle Combustion Project No.: IEA-CANMET-CO2 (International Agreement) Photograph of CANMET's Vertical Combustor Research Facility. Photograph of CANMET’s Vertical Combustor Research Facility. The CANMET carbon dioxide (CO2) consortium will conduct research to further the development of oxy-combustion for retrofit to coal-fired power plants. Research activities include: (1) modeling of an advanced, supercritical pressure oxy-coal plant, including an analysis of the impact of oxygen (O2) purity and O2 partial enrichment, overall process performance, and cost; (2) testing of pilot-scale CO2 capture and compression; (3) investigating CO2 phase change at liquid and supercritical states in gas mixtures

31

NETL: Staged, High-Pressure Oxy-Combustion Technology: Development...  

NLE Websites -- All DOE Office Websites (Extended Search)

tool Conducting CFD-aided design of a novel staged combustion vessel and radiative heat exchanger Performing lab-scale experiments of staged combustion without flue gas...

32

Fireside Corrosion in the Oxy-Combustion of Coal  

Science Conference Proceedings (OSTI)

Oxy-fuel combustion is burning a fuel in oxygen rather than air. This work considers the case of burning coal in a mixture of recirculated flue gas and oxygen.

33

Development of Cost Effective Oxy-Combustion Retrofitting for Coal-Fired Boilers  

Science Conference Proceedings (OSTI)

The overall objective of this project is to further develop the oxy-combustion technology for commercial retrofit in existing wall-fired and Cyclone boilers by 2012. To meet this goal, a research project was conducted that included pilot-scale testing and a full-scale engineering and economic analysis.

Hamid Farzan

2010-12-31T23:59:59.000Z

34

CO2 Capture Membrane Process for Power Plant Flue Gas  

NLE Websites -- All DOE Office Websites (Extended Search)

CO CO 2 Capture Membrane Process for Power Plant Flue Gas Background The U.S. Department of Energy's (DOE) Existing Plants, Emissions & Capture (EPEC) Program is performing research to develop advanced technologies focusing on carbon dioxide (CO 2 ) emissions control for existing pulverized coal-fired plants. This new focus on post-combustion and oxy-combustion CO 2 emissions control technology, CO 2 compression, and beneficial reuse is in response to the priority for advanced

35

Flue Gas Purification Utilizing SOx/NOx Reactions During Compressin of CO2 Derived from Oxyfuel Combustion  

NLE Websites -- All DOE Office Websites (Extended Search)

Flue Gas Purification Flue Gas Purification Utilizing SO X /NO X Reactions During Compression of CO 2 Derived from Oxyfuel Combustion Background Oxy-combustion in a pulverized coal-fired power station produces a raw carbon dioxide (CO 2 ) product containing contaminants such as water vapor, oxygen, nitrogen, and argon from impurities in the oxygen used and any air leakage into the system. Acid gases are also produced as combustion products, such as sulfur oxides (SO

36

NETL: IEP – Oxy-Combustion CO2 Emissions Control - Pilot-Scale  

NLE Websites -- All DOE Office Websites (Extended Search)

Pilot-Scale Demonstration Of A Novel, Low-Cost Oxygen Supply Process And Its Integration With Oxy-Fuel Coal-Fired Boilers Pilot-Scale Demonstration Of A Novel, Low-Cost Oxygen Supply Process And Its Integration With Oxy-Fuel Coal-Fired Boilers Project No.: FC26-06NT42748 Schematic of the Ceramic Autothermal Recovery Process. Schematic of the Ceramic Autothermal Recovery Process. The Linde Group (formerly BOC Group, Inc.) will conduct pilot-scale testing of their Ceramic Autothermal Recovery (CAR) oxygen (O2) generation process integrated with a coal-fired combustor to produce a carbon dioxide (CO2) rich flue gas. The CAR process uses the O2 storage properties of perovskites to adsorb O2 from air in a fixed bed and then release the adsorbed O2 into a sweep gas, such as recycled flue gas, that can be sent to the furnace. As shown in the figure below, the process is made continuous by operating multiple beds in a cycle.

37

CX-000725: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Determination CX-000725: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: A9,...

38

CX-000728: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Determination CX-000728: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: A9...

39

CX-000727: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Determination CX-000727: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: A9...

40

CX-000729: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Determination CX-000729: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: A9...

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Membrane Process to Capture CO2 from Power Plant Flue Gas  

NLE Websites -- All DOE Office Websites (Extended Search)

Membrane Process to Capture CO Membrane Process to Capture CO 2 from Power Plant Flue Gas Background The U.S. Department of Energy's (DOE) Innovations for Existing Plants (IEP) Program is performing research to develop advanced technologies focusing on carbon dioxide (CO 2 ) emissions control for existing pulverized coal-fired plants. This new focus on post-combustion and oxy-combustion CO 2 emissions control technology, CO 2 compression, and beneficial reuse is in response to the priority for advanced

42

Oxy-Combustion Environment Characterization: Fire- and Steam-Side Corrosion in Advanced Combustion  

Science Conference Proceedings (OSTI)

Oxy-fuel combustion is burning a fuel in oxygen rather than air. The low nitrogen flue gas that results is relatively easy to capture CO{sub 2} from for reuse or sequestration. Corrosion issues associated with the environment change (replacement of much of the N{sub 2} with CO{sub 2} and higher sulfur levels) from air- to oxy-firing were examined. Alloys studied included model Fe-Cr alloys and commercial ferritic steels, austenitic steels, and nickel base superalloys. The corrosion behavior is described in terms of corrosion rates, scale morphologies, and scale/ash interactions for the different environmental conditions. Additionally, the progress towards laboratory oxidation tests in advanced ultra-supercritical steam is updated.

G. R. Holcomb; J. Tylczak; G. H. Meier; B. S. Lutz; N. M. Yanar; F. S. Pettit; J. Zhu; A. Wise; D. E. Laughlin; S. Sridhar

2012-09-25T23:59:59.000Z

43

NETL: IEP ? Oxy-Combustion CO2 Emissions Control - Jupiter Oxycombust...  

NLE Websites -- All DOE Office Websites (Extended Search)

Jupiter Oxycombustion and Integrated Pollutant Removal for the Existing Coal Fired Power Generation Fleet Project No.: FC26-06NT42811 This research and development project...

44

Optimization and hybridization of membrane-based oxy-combustion power plants  

E-Print Network (OSTI)

This thesis considers the optimization and hybridization of advanced zero emissions power (AZEP) cycles. More specifically, existing flowsheets for zero and partial emissions are optimized, and new integration schemes with ...

Gunasekaran, Surekha

2013-01-01T23:59:59.000Z

45

Systems-level design of ion transport membrane oxy-combustion power plants  

E-Print Network (OSTI)

Oxy-fuel combustion, particularly using an integrated oxygen ion transport membrane (ITM), is a thermodynamically attractive concept that seeks to mitigate the penalties associated with CO 2 capture from power plants. ...

Mancini, Nicholas D. (Nicholas David)

2011-01-01T23:59:59.000Z

46

U.S. DEPARTMENT OF ENERGY - NETL CATEGORICAL EXCLUSION (CX) DESIGNATIO...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Perryville. NJ A NOVEL INTEGRATED OXY-COMBUSTION FLUE GAS PURIFICATION TECHNOLOGY: A NEAR-ZERO EMISSIONS PATHWAY The goal of the project is to optimize and test a novel integrated...

47

U.S. DEPARTMENT OF ENERGY - NETL CATEGORICAL EXCLUSION (CX) DESIGNATIO...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Livingston. NJ A NOVEL INTEGRATED OXY-COMBUSTION FLUE GAS PURIFICATION TECHNOLOGY: A NEAR-ZERO EMISSIONS PATHWAY The goal of the project is to optimize and test a novel integrated...

48

Categorical Exclusion Determinations: National Energy Technology...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

13, 2010 CX-000726: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: B3.6...

49

CX-000726: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Determination CX-000726: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: B3.6...

50

U.S. DEPARTMENT OF ENERGY - NETL CATEGORICAL EXCLUSION (CX) DESIGNATIO...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

WRI FE DE-FC26-08NT43293 Task 19-S2 Gasification Division 2010 Ronald. Breault July 1, 2009 to Dec 31, 2011 Laramie, WY A NOVEL INTEGRATED OXY-COMBUSTION FLUE GAS PURIFICATION...

51

U.S. DEPARTMENT OF ENERGY - NETL CATEGORICAL EXCLUSION (CX) DESIGNATIO...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Etaa Energy FE DE-FC26-08NT43293 Task 19-S2 Gasification Division 2010 Ronald. Breault July 1, 2009 to Dec 31, 2011 Bridgewater. NJ A NOVEL INTEGRATED OXY-COMBUSTION FLUE GAS...

52

U.S. DEPARTMENT OF ENERGY - NETL CATEGORICAL EXCLUSION (CX) DESIGNATIO...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

SRI FE DE-FC26-08NT43293 Task 19-S2 Gasification Division 2010 Ronald. Breault July 1, 2009 to Dec 31, 2011 Birmingham, AL A NOVEL INTEGRATED OXY-COMBUSTION FLUE GAS PURIFICATION...

53

Development and Demonstration of Waste Heat Integration with Solvent Process for More Efficient CO2 Removal from Coal-Fired Flue Gas  

NLE Websites -- All DOE Office Websites (Extended Search)

and Demonstration of and Demonstration of Waste Heat Integration with Solvent Process for More Efficient CO 2 Removal from Coal-Fired Flue Gas Background The mission of the U.S. Department of Energy/National Energy Technology Laboratory (DOE/NETL) Existing Plants, Emissions, & Capture (EPEC) Research & Development (R&D) Program is to develop innovative environmental control technologies to enable full use of the nation's vast coal reserves, while at the same time allowing the current fleet of coal-

54

Categorical Exclusion Determinations: National Energy Technology Laboratory  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

January 13, 2010 January 13, 2010 CX-000726: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: B3.6 Date: 01/13/2010 Location(s): Birmingham, Alabama Office(s): Fossil Energy, National Energy Technology Laboratory January 13, 2010 CX-000727: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: A9 Date: 01/13/2010 Location(s): Bridgewater, New Jersey Office(s): Fossil Energy, National Energy Technology Laboratory January 13, 2010 CX-000728: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: A9

55

Categorical Exclusion (CX) Determinations By Date | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

3, 2010 3, 2010 CX-000727: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: A9 Date: 01/13/2010 Location(s): Bridgewater, New Jersey Office(s): Fossil Energy, National Energy Technology Laboratory January 13, 2010 CX-000728: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: A9 Date: 01/13/2010 Location(s): Perryville, New Jersey Office(s): Fossil Energy, National Energy Technology Laboratory January 13, 2010 CX-000729: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: A9 Date: 01/13/2010

56

Categorical Exclusion Determinations: Fossil Energy | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

January 13, 2010 January 13, 2010 CX-000727: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: A9 Date: 01/13/2010 Location(s): Bridgewater, New Jersey Office(s): Fossil Energy, National Energy Technology Laboratory January 13, 2010 CX-000728: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: A9 Date: 01/13/2010 Location(s): Perryville, New Jersey Office(s): Fossil Energy, National Energy Technology Laboratory January 13, 2010 CX-000729: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: A9

57

Flue heat reclaimer  

Science Conference Proceedings (OSTI)

A flue heat reclaimer is constructed to be mounted on the exterior of a flue duct of a heater and provide a spiral-shaped heat transfer passage extending around the flue duct. A fan causes air to flow through the heat transfer passage so that the temperature of this air is elevated by reason at its extended heat transfer relationship with the flue duct.

Paolino, R.J.

1983-05-03T23:59:59.000Z

58

Subsurface characterization of an oxidation-induced phase transformation and twinning in nickel-based superalloy exposed to oxy-combustion environments  

Science Conference Proceedings (OSTI)

In the integration of oxy-fuel combustion to turbine power generation system, turbine alloys are exposed to high temperature and an atmosphere comprised of steam, CO{sub 2} and O{sub 2}. While surface and internal oxidation of the alloy takes place, the microstructure in the subsurface region also changes due to oxidation. In this study, bare metal coupons of Ni-base superalloys were exposed in oxy-fuel combustion environment for up to 1000 h and the oxidation-related microstructures were examined. Phase transformation occurred in the subsurface region in Ni-based superalloy and led to twinning. The transformation product phases were analyzed through thermodynamic equilibrium calculations and various electron microscopy techniques, including scanning electron microscopy (SEM), orientation imaging microscopy (OIM) and transmission electron microscopy (TEM). The mechanism by which the phase transformation and the formation of the microstructure occurred was also discussed. The possible effects of the product phases on the performance of the alloy in service were discussed.

Zhu, Jingxi; Holcomb, Gordon R.; Jablonski, Paul D.; Wise, Adam; Li, Jia; Laughlin, David E.; Sridhar, Seetharaman

2012-07-30T23:59:59.000Z

59

Flue Gas Purification Utilizing SOx/NOx Reactions During Compression of CO{sub 2} Derived from Oxyfuel Combustion  

SciTech Connect

The United States wishes to decrease foreign energy dependence by utilizing the countrys significant coal reserves, while stemming the effects of global warming from greenhouse gases. In response to these needs, Air Products has developed a patented process for the compression and purification of the CO{sub 2} stream from oxyfuel combustion of pulverized coal. The purpose of this project was the development and performance of a comprehensive experimental and engineering evaluation to determine the feasibility of purifying CO{sub 2} derived from the flue gas generated in a tangentially fired coal combustion unit operated in the oxy-combustion mode. Following the design and construction of a 15 bar reactor system, Air Products conducted two test campaigns using the slip stream from the tangentially fired oxy-coal combustion unit. During the first test campaign, Air Products evaluated the reactor performance based on both the liquid and gaseous reactor effluents. The data obtained from the test run has enabled Air Products to determine the reaction and mass transfer rates, as well as the effectiveness of the reactor system. During the second test campaign, Air Products evaluated reactor performance based on effluents for different reactor pressures, as well as water recycle rates. Analysis of the reaction equations indicates that both pressure and water flow rate affect the process reaction rates, as well as the overall reactor performance.

Fogash, Kevin

2010-09-30T23:59:59.000Z

60

Flue Gas Perification Utilizing SOx/NOx Reactions During Compression of CO2 Derived from Oxyfuel Combustion  

SciTech Connect

The United States wishes to decrease foreign energy dependence by utilizing the countrys significant coal reserves, while stemming the effects of global warming from greenhouse gases. In response to these needs, Air Products has developed a patented process for the compression and purification of the CO2 stream from oxyfuel combustion of pulverized coal. The purpose of this project was the development and performance of a comprehensive experimental and engineering evaluation to determine the feasibility of purifying CO2 derived from the flue gas generated in a tangentially fired coal combustion unit operated in the oxy-combustion mode. Following the design and construction of a 15 bar reactor system, Air Products conducted two test campaigns using the slip stream from the tangentially fired oxy-coal combustion unit. During the first test campaign, Air Products evaluated the reactor performance based on both the liquid and gaseous reactor effluents. The data obtained from the test run has enabled Air Products to determine the reaction and mass transfer rates, as well as the effectiveness of the reactor system. During the second test campaign, Air Products evaluated reactor performance based on effluents for different reactor pressures, as well as water recycle rates. Analysis of the reaction equations indicates that both pressure and water flow rate affect the process reaction rates, as well as the overall reactor performance.

Kevin Fogash

2010-09-30T23:59:59.000Z

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Oxy-combustion: Oxygen Transport Membrane Development  

NLE Websites -- All DOE Office Websites (Extended Search)

combustion: Oxygen Transport combustion: Oxygen Transport Membrane Development Background The mission of the U.S. Department of Energy's (DOE) Existing Plants, Emissions & Capture (EPEC) Research & Development (R&D) Program is to develop innovative environmental control technologies to enable full use of the nation's vast coal reserves, while at the same time allowing the current fleet of coal-fired power plants to comply with existing and emerging environmental regulations. The EPEC R&D

62

NETL: Oxy-Combustion CO2 Control  

NLE Websites -- All DOE Office Websites (Extended Search)

Oxygen-Fired CO2 Recycle for Application to Direct CO2 Capture from Coal-Fired Power Plants Project No.: FC26-05NT42430 Southern Research Institute (SRI) will explore the...

63

Pulverized Coal OxyCombustion Power Plants  

NLE Websites -- All DOE Office Websites (Extended Search)

HHV Higher heating value hp Horsepower HP High pressure HRSG Heat Recovery Steam Generator HSS Heat stable salts HVAC Heating, ventilating, and air conditioning HWT Hot water...

64

Flue Gas Desulfurization Systems  

Science Conference Proceedings (OSTI)

In many of the operating flue gas desulfurization (FGD) systems throughout the world, materials corrosion leads to considerable costs and downtime. Utilities are often required to maintain, repair, replace, and/or upgrade existing materials to combat corrosion issues. This document provides the results of a recent EPRI survey that examined the various types of corrosion and materials damage in FGD systems.

2005-12-23T23:59:59.000Z

65

Dry Flue Gas Desulfurization State of the Art Survey  

Science Conference Proceedings (OSTI)

The intent of this report is to provide a summary of state-of-the-art dry flue gas desulfurization (FGD) technologies, including circulating dry scrubbers (CDS), spray dryer absorbers (SDA), and the Alstom Novel Integrated Desulfurization (NID) technology. These can all be considered semi-dry technologies, as the flue gas is cooled and humidified as part of each of these processes. This report also discusses a completely dry FGD technology, dry sorbent injection (DSI), which is ...

2012-12-14T23:59:59.000Z

66

Categorical Exclusion Determinations: New Jersey | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

January 13, 2010 January 13, 2010 CX-000728: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: A9 Date: 01/13/2010 Location(s): Perryville, New Jersey Office(s): Fossil Energy, National Energy Technology Laboratory January 13, 2010 CX-000729: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: A9 Date: 01/13/2010 Location(s): Livingston, New Jersey Office(s): Fossil Energy, National Energy Technology Laboratory January 13, 2010 CX-000790: Categorical Exclusion Determination Infrastructure Improvements for Innovative Confinement Concept (ICC) Experiments with American Recovery and Reinvestment Act Funding

67

Categorical Exclusion Determinations: A9 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

13, 2010 13, 2010 CX-000728: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: A9 Date: 01/13/2010 Location(s): Perryville, New Jersey Office(s): Fossil Energy, National Energy Technology Laboratory January 13, 2010 CX-000729: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: A9 Date: 01/13/2010 Location(s): Livingston, New Jersey Office(s): Fossil Energy, National Energy Technology Laboratory January 12, 2010 CX-006426: Categorical Exclusion Determination Ohio-City-Elyria CX(s) Applied: A1, A9, A11, B1.32, B5.1 Date: 01/12/2010 Location(s): Elyria, Ohio Office(s): Energy Efficiency and Renewable Energy

68

Page not found | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

11 - 5820 of 28,905 results. 11 - 5820 of 28,905 results. Download CX-000726: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: B3.6 Date: 01/13/2010 Location(s): Birmingham, Alabama Office(s): Fossil Energy, National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-000726-categorical-exclusion-determination Download CX-000725: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: A9, B3.6 Date: 01/13/2010 Location(s): Laramie, Wyoming Office(s): Fossil Energy, National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-000725-categorical-exclusion-determination Download CX-000723: Categorical Exclusion Determination

69

System of treating flue gas  

DOE Patents (OSTI)

A system is described for treating or cleaning incinerator flue gas containing acid gases and radioactive and fissionable contaminants. Flue gas and a quench solution are fed into a venturi and then tangentially into the lower portion of a receptacle for restricting volumetric content of the solution. The upper portion of the receptacle contains a scrub bed to further treat or clean the flue gas.

Ziegler, D.L.

1975-12-01T23:59:59.000Z

70

Advanced Flue Gas Desulfurization (AFGD) Demonstration Project...  

NLE Websites -- All DOE Office Websites (Extended Search)

in the WES, which involves injection into the flue gas duct upstream of the existing electrostatic 11 precipitator (ESP). The hot flue gas evaporates the water and the...

71

NETL: IEP – Post-Combustion CO2 Emissions Control - Near-Zero Emissions  

NLE Websites -- All DOE Office Websites (Extended Search)

Near-Zero Emissions Oxy-Combustion Flue Gas Purification Near-Zero Emissions Oxy-Combustion Flue Gas Purification Project No.: DE-NT0005341 Praxair oxy-combustion test equipment Praxair oxy-combustion test equipment. Praxair Inc. will develop a near-zero emissions flue gas purification technology for existing coal-fired power plants retrofit with oxy-combustion technology. Emissions of sulfur dioxide (SO2) and mercury (Hg) will be reduced by at least 99 percent, and nitrogen oxide (NOx) emissions will be reduced by greater than 90 percent without the need for wet flue gas desulfurization and selective catalytic reduction (SCR). Two separate processes are proposed depending on the sulfur content of the coal. For high-sulfur coal, SO2 and NOx will be recovered as product sulfuric acid and nitric acid, respectively, and Hg will be recovered as

72

Mercury sorbent delivery system for flue gas  

DOE Patents (OSTI)

The invention presents a device for the removal of elemental mercury from flue gas streams utilizing a layer of activated carbon particles contained within the filter fabric of a filter bag for use in a flue gas scrubbing system.

Klunder; ,Edgar B. (Bethel Park, PA)

2009-02-24T23:59:59.000Z

73

Heat recovery device for exhaust flues  

SciTech Connect

The heat recovery device has a flue pipe assembly including a section of standard flue pipe carrying a plurality of hollow, cylindrical heating tubes extending diametrically through the flue pipe section in axially spaced, parallel relationship and a separate housing defining an air flow chamber surrounding a portion of the flue pipe section. A fan inside the housing draws ambient air into the housing through an ambient air inlet located on the same side of the flue pipe assembly as the inlet of the heating tubes and propels a flow of air both through the heating tubes and over the outer surface of the flue pipe section towards a heated air outlet located on the same side of the flue pipe section as the discharge ends of the heating tubes. The flue pipe assembly is removably mounted on the housing so it can be removed in the event it fatigues and/or becomes plugged with carbon or creosote deposits during use. A thermostat on the flue pipe section turns the fan on and off when the temperature in the flue pipe section is respectively above and below a predetermined temperature. The total open area of the ambient air inlet and the heated air outlet is large enough so that, in the event the fan is inoperative, the natural flow of ambient air through the heating tubes and over the outer surface of the flue pipe is sufficient to prevent the flue pipe section from overheating.

Knoch, D. G.

1985-11-05T23:59:59.000Z

74

Recovery of Water from Boiler Flue Gas  

SciTech Connect

This project dealt with use of condensing heat exchangers to recover water vapor from flue gas at coal-fired power plants. Pilot-scale heat transfer tests were performed to determine the relationship between flue gas moisture concentration, heat exchanger design and operating conditions, and water vapor condensation rate. The tests also determined the extent to which the condensation processes for water and acid vapors in flue gas can be made to occur separately in different heat transfer sections. The results showed flue gas water vapor condensed in the low temperature region of the heat exchanger system, with water capture efficiencies depending strongly on flue gas moisture content, cooling water inlet temperature, heat exchanger design and flue gas and cooling water flow rates. Sulfuric acid vapor condensed in both the high temperature and low temperature regions of the heat transfer apparatus, while hydrochloric and nitric acid vapors condensed with the water vapor in the low temperature region. Measurements made of flue gas mercury concentrations upstream and downstream of the heat exchangers showed a significant reduction in flue gas mercury concentration within the heat exchangers. A theoretical heat and mass transfer model was developed for predicting rates of heat transfer and water vapor condensation and comparisons were made with pilot scale measurements. Analyses were also carried out to estimate how much flue gas moisture it would be practical to recover from boiler flue gas and the magnitude of the heat rate improvements which could be made by recovering sensible and latent heat from flue gas.

Edward Levy; Harun Bilirgen; Kwangkook Jeong; Michael Kessen; Christopher Samuelson; Christopher Whitcombe

2008-09-30T23:59:59.000Z

75

Appendix B: CArBon dioxide CApture teChnology SheetS  

NLE Websites -- All DOE Office Websites (Extended Search)

Plus models of oxy-combustion coal power plants to simulate the effects of different thermal integration options on power plant efficiency and net power output. technical...

76

Gas Turbines of the Future: Hydrogen and Oxy-Combustion ...  

Science Conference Proceedings (OSTI)

Abstract Scope, Materials issues related to higher efficiency power plants, like hydrogen or oxy-fuel fired gas turbines, require materials with higher temperature ...

77

Mercury Sorbent Delivery System for Flue Gas  

NLE Websites -- All DOE Office Websites (Extended Search)

(NETL) is seeking licensing partners interested in implementing United States Patent Number 7,494,632 entitled "Mercury Sorbent Delivery System for Flue Gas." Disclosed in...

78

NETL: Demonstration of a Novel Supercritical Carbon Dioxide Power Cycle  

NLE Websites -- All DOE Office Websites (Extended Search)

Oxy-Combustion CO2 Emissions Control Oxy-Combustion CO2 Emissions Control Demonstration of a Novel Supercritical Carbon Dioxide Power Cycle Utilizing Pressurized Oxy-Combustion in Conjunction with Cryogenic Compression Project No.: DE-FE0009395 Southwest Research Institute (SwRI) is developing a novel supercritical carbon dioxide (sCO2) advanced power system utilizing pressurized oxy-combustion in conjunction with cryogenic compression. The proposed power system offers a leap in overall system efficiency while producing an output stream of sequestration ready CO2 at pipeline pressures. The system leverages developments in pressurized oxy-combustion technology and recent developments in sCO2 power cycles to achieve high net cycle efficiencies and produce CO2 at pipeline pressures without requiring additional compression of the flue gas.

79

Project Response To ASME Question for Comparison of Pure Oxy-Firing to Diluted Oxy-Firing  

SciTech Connect

High flame temperature oxy-combustion and low flame temperature oxy-combustion are the two primary types of oxy-combustion, which is the combustion of fossil fuel with oxygen instead of air. High flame temperature oxy-combustion results in increased radiant energy, but heat flux at the water walls has been demonstrated to be maintained within design parameters. Less fossil fuel is used, so less CO{sub 2} is produced. Latent and sensible heat can be partially recovered from the compressors. CO{sub 2} capture costs are decreased. Evenly distributed heat avoids creating hot spots. The NETL IPR capture system can capture 100% of the CO{sub 2} when operating at steady state. New boiler designs for high flame temperature oxy-combustion can take advantage of the higher flame temperatures. High flame temperature oxy-combustion with IPR capture can be retrofitted on existing plants. High flame temperature oxy-combustion has significantly improved radiant heat transfer compared to low flame temperature oxy-combustion, but heat flux at the water walls can be controlled. High flame temperature oxy-combustion used with the NETL's Integrated Pollutant Removal System can capture 95%-100% of the CO{sub 2} with heat recovery. These technologies create CO{sub 2} capture cost savings, and are applicable to new design and existing design boilers.

Mark Schoenfield; Tom Ochs

2009-08-31T23:59:59.000Z

80

Flue Gas Desulfurization Gypsum Agricultural Network  

Science Conference Proceedings (OSTI)

Research on flue gas desulfurization gypsum (FGDG) has been conducted under the auspices of the Flue Gas Desulfurization Gypsum Agricultural Network program sponsored by the Electric Power Research Institute (EPRI) in collaboration with individual utilities, the U.S. Environmental Protection Agency, U.S. Department of Agriculture-Agricultural Research Service, and universities. This report describes work conducted in northwestern New Mexico in 20082012 as part of that effort. Two separate ...

2012-10-15T23:59:59.000Z

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Enhanced Elemental Mercury Removal from Coal-fired Flue Gas by Sulfur-chlorine Compounds  

E-Print Network (OSTI)

of Catalysts for Oxidation of Mercury in Flue Gas, Environ.mercury oxidation when the chlorine concentration in flue gas

Miller, Nai-Qiang Yan-Zan Qu Yao Chi Shao-Hua Qiao Ray Dod Shih-Ger Chang Charles

2008-01-01T23:59:59.000Z

82

Water Extraction from Coal-Fired Power Plant Flue Gas  

Science Conference Proceedings (OSTI)

The overall objective of this program was to develop a liquid disiccant-based flue gas dehydration process technology to reduce water consumption in coal-fired power plants. The specific objective of the program was to generate sufficient subscale test data and conceptual commercial power plant evaluations to assess process feasibility and merits for commercialization. Currently, coal-fired power plants require access to water sources outside the power plant for several aspects of their operation in addition to steam cycle condensation and process cooling needs. At the present time, there is no practiced method of extracting the usually abundant water found in the power plant stack gas. This project demonstrated the feasibility and merits of a liquid desiccant-based process that can efficiently and economically remove water vapor from the flue gas of fossil fuel-fired power plants to be recycled for in-plant use or exported for clean water conservation. After an extensive literature review, a survey of the available physical and chemical property information on desiccants in conjunction with a weighting scheme developed for this application, three desiccants were selected and tested in a bench-scale system at the Energy and Environmental Research Center (EERC). System performance at the bench scale aided in determining which desiccant was best suited for further evaluation. The results of the bench-scale tests along with further review of the available property data for each of the desiccants resulted in the selection of calcium chloride as the desiccant for testing at the pilot-scale level. Two weeks of testing utilizing natural gas in Test Series I and coal in Test Series II for production of flue gas was conducted with the liquid desiccant dehumidification system (LDDS) designed and built for this study. In general, it was found that the LDDS operated well and could be placed in an automode in which the process would operate with no operator intervention or adjustment. Water produced from this process should require little processing for use, depending on the end application. Test Series II water quality was not as good as that obtained in Test Series I; however, this was believed to be due to a system upset that contaminated the product water system during Test Series II. The amount of water that can be recovered from flue gas with the LDDS is a function of several variables, including desiccant temperature, L/G in the absorber, flash drum pressure, liquid-gas contact method, and desiccant concentration. Corrosion will be an issue with the use of calcium chloride as expected but can be largely mitigated through proper material selection. Integration of the LDDS with either low-grade waste heat and or ground-source heating and cooling can affect the parasitic power draw the LDDS will have on a power plant. Depending on the amount of water to be removed from the flue gas, the system can be designed with no parasitic power draw on the power plant other than pumping loads. This can be accomplished in one scenario by taking advantage of the heat of absorption and the heat of vaporization to provide the necessary temperature changes in the desiccant with the flue gas and precipitates that may form and how to handle them. These questions must be addressed in subsequent testing before scale-up of the process can be confidently completed.

Bruce C. Folkedahl; Greg F. Weber; Michael E. Collings

2006-06-30T23:59:59.000Z

83

Albany, OR * Anchorage, AK * Morgantown, WV * Pittsburgh, PA * Sugar Land, TX  

NLE Websites -- All DOE Office Websites (Extended Search)

Staged, High-Pressure Oxy-Combustion Staged, High-Pressure Oxy-Combustion Technology: Development and Scale-up Background The Advanced Combustion Systems (ACS) Program of the U.S. Department of Energy/ National Energy Technology Laboratory (DOE/NETL) is aiming to develop advanced oxy- combustion systems that have the potential to improve the efficiency and environmental impact of coal-based power generation systems. Currently available CO2 capture and storage significantly reduces efficiency of the power cycle. The aim of the ACS program is to develop advanced oxy-combustion systems capable of achieving power plant efficiencies approaching those of air-fired systems without CO2 capture. Additionally, the program looks to accomplish this while maintaining near zero emissions of other flue gas pollutants.

84

Recovery of Water from Boiler Flue Gas  

NLE Websites -- All DOE Office Websites (Extended Search)

RecoveRy of WateR fRom BoileR flue Gas RecoveRy of WateR fRom BoileR flue Gas Background Coal-fired power plants require large volumes of water for efficient operation, primarily for cooling purposes. Public concern over water use is increasing, particularly in water stressed areas of the country. Analyses conducted by the U.S. Department of Energy's National Energy Technology Laboratory predict significant increases in power plant freshwater consumption over the coming years, encouraging the development of technologies to reduce this water loss. Power plant freshwater consumption refers to the quantity of water withdrawn from a water body that is not returned to the source but is lost to evaporation, while water withdrawal refers to the total quantity of water removed from a water source.

85

Fundamental mechanisms in flue-gas conditioning  

Science Conference Proceedings (OSTI)

The overall goal of this research project is to formulate a mathematical model of flue gas conditioning. This model will be based on an understanding of why ash properties, such as cohesivity and resistivity, are changed by conditioning. Such a model could serve as a component of the performance models of particulate control devices where flue gas conditioning is used. There are two specific objectives of this research project, which divide the planned research into two main parts. One part of the project is designed to determine how ash particles are modified by interactions with sorbent injection processes and to describe the mechanisms by which these interactions affect fine particle collection. The objective of the other part of the project is to identify the mechanisms by which conditioning agents, including chemically active compounds, modify the key properties of fine fly ash particles.

Dahlin, R.S.; Vann Bush, P.; Snyder, T.R.

1992-01-09T23:59:59.000Z

86

Fundamental mechanisms in flue gas conditioning  

Science Conference Proceedings (OSTI)

The overall goal of this research project is to formulate a mathematical model of flue gas conditioning. This model will be based on an understanding of why ask properties, such as cohesivity and resistivity, are changed by conditioning. Such a model could serve as a component of the performance models of particulate control devices where flue gas conditioning is used. There are two specific objectives of this research project, which divide the planned research into two main parts. One part of the project is designed to determine how ash particles are modified by interactions with sorbent injection processes and to describe the mechanisms by which these interactions affect fine particle collection. The objective of the other part of the project is to identify the mechanisms by which conditioning agents, including chemically active compounds, modify the key properties of fine fly ash particles.

Bush, P.V.; Snyder, T.R.

1992-01-09T23:59:59.000Z

87

Flue Gas Desulfurization Gypsum Agricultural Network  

Science Conference Proceedings (OSTI)

Flue gas desulfurization (FGD) gypsum is a solid produced by wet FGD systems with forced air oxidation and is chemically similar to mined gypsum. These gypsums, used as beneficial agricultural amendments, were evaluated for their effects on earthworm populations and trace element concentrations in soils and earthworms at four field sites (Ohio, Indiana, Alabama, and Wisconsin). These sites are part of a network study on agricultural uses of FGD gypsum conducted at sites across the United States. ...

2012-09-19T23:59:59.000Z

88

Cement Kiln Flue Gas Recovery Scrubber Project  

SciTech Connect

The Cement Kiln Flue Gas Recovery Scrubber Project was a technical success and demonstrated the following: CKD can be used successfully as the sole reagent for removing SO2 from cement kiln flue gas, with removal efficiencies of 90 percent or greater; Removal efficiencies for HCl and VOCs were approximately 98 percent and 70 percent, respectively; Particulate emissions were low, in the range of 0.005 to 0.007 grains/standard cubic foot; The treated CKD sorbent can be recycled to the kiln after its potassium content has been reduced in the scrubber, thereby avoiding the need for landfilling; The process can yield fertilizer-grade K2SO4, a saleable by-product; and Waste heat in the flue gas can provide the energy required for evaporation and crystallization in the by-product recovery operation. The demonstration program established the feasibility of using the Recovery Scrubber{trademark} for desulfurization of flue gas from cement kilns, with generally favorable economics, assuming tipping fees are available for disposal of ash from biomass combustion. The process appears to be suitable for commercial use on any type of cement kiln. EPA has ruled that CKD is a nonhazardous waste, provided the facility meets Performance Standards for the Management of CKD (U.S. Environmental Protection Agency 1999d). Therefore, regulatory drivers for the technology focus more on reduction of air pollutants and pollution prevention, rather than on treating CKD as a hazardous waste. Application of the Recovery Scrubbe{trademark} concept to other waste-disposal operations, where pollution and waste reductions are needed, appears promising.

National Energy Technology Laboratory

2001-11-30T23:59:59.000Z

89

Flue Gas Desulfurization Gypsum Agricultural Network  

Science Conference Proceedings (OSTI)

Increasing volumes of flue gas desulfurization (FGD) gypsum will become available for agricultural use as more utilities install forced oxidation scrubbers and the wallboard market for the resulting gypsum becomes saturated. This interim report describes work performed in 2007 and 2008 to develop a national research network to gain data and experience to support the beneficial uses of FGD products, especially FGD gypsum, in agriculture and other land applications.

2008-12-12T23:59:59.000Z

90

Flue Gas Desulfurization Equipment Issues Guidelines  

Science Conference Proceedings (OSTI)

As electric utilities enter a more competitive environment, every aspect of electric power generation is under scrutiny to determine where costs can be reduced. Because flue gas desulfurization (FGD) systems represent significant capital, operating, and maintenance expenses for many coal-fired power plants, identification and implementation of cost reduction options are crucial. This report documents successful approaches for determining the cost-effectiveness of key FGD optimization strategies.

2001-10-15T23:59:59.000Z

91

FlueGen Inc | Open Energy Information  

Open Energy Info (EERE)

FlueGen Inc FlueGen Inc Jump to: navigation, search Name FlueGen, Inc. Place Irvine, California Zip 92614 Product Irvine-based original equipment manufacturer (OEM) of air pollution control systems for the utility industry, including coal-fired power plants, in addition to financing client's projects, thereafter operating and maintaining the system for a fee. Coordinates 41.837752°, -79.268594° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.837752,"lon":-79.268594,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

92

Process for the desulfurization of flue gas  

SciTech Connect

A process for the removal of sulfur oxides from gases is described that is comprised of the steps of contacting the gas with a cerium oxide sorbent at conditions whereby the sulfur oxides present in the gas are sorbed by the cerium oxide sorbent and regenerate the cerium oxide sorbent by contacting it with a reducing atmosphere at conditions whereby the sorbent is substantially converted to a sulfur-free state. The gas may be an exhaust gas, e.g., from an automobile or a flue gas. This invention is especially preferred for treating flue gas. In this preferred embodiment, the flue gas may be contacted with the cerium oxide sorbent at a temperature of from 300/sup 0/ to 800/sup 0/C, to form cerium sulfate and/or sulfite and the sorbent is regenerated by contacting with a reducing gas, for example, hydrogen in admixture with steam or other inert gases at a temperature of from 500/sup 0/ to 800/sup 0/C to convert the cerium sulfate or sulfite to cerium oxide. During the regeneration step, the desorbed species is initially sulfur dioxide. However, when about 50% of the sulfur is removed from the sorbent, the desorbed species becomes H/sub 2/S. Thus, the instant invention provides SO/sub 2/ and H/sub 2/S in admixture with the excess reducing gas, which can be fed conveniently to the Claus plant for conversion into elemental sulfur.

Longo, J.M.

1977-01-04T23:59:59.000Z

93

Catalysts for Oxidation of Mercury in Flue Gas  

Disclosed in this patent are catalysts for the oxidation of elemental mercury in flue gas. These novel catalysts include iridium (Ir), ...

94

Pilot Test of Bauxite Residue Carbonation With Flue Gas  

Science Conference Proceedings (OSTI)

... of bauxite residue in water with flue gas, produced from direct oil burning. ... New Development Model for Bauxite Deposits - Dedicated Compact Refinery.

95

PowerPoint Presentation  

NLE Websites -- All DOE Office Websites (Extended Search)

Oxy-Combustion Oxygen Transport Membrane Development Wladimir Sarmiento-Darkin July 11 th , 2013 1 | Praxair Business Confidential | 7/16/2013 2 ...if we didn't need to go this big OTM is a modular solution that may enable future low cost syngas production at small scales ...it would be easier to maximize NG value creation Praxair - OTM for Industrial Applications NT43088 Program Overview: DOE NT43088 Phase 1 May'07 to Dec'09 * OTM integrated coal power plant * Advanced oxy-combustion cycle * Process economic evaluation * Membrane performance improvement Phase 2 Jan'10 to Jun'12 * OTM integrated coal power plant * Advanced oxy-combustion cycle

96

Flue gas desulfurization wastewater treatment primer  

SciTech Connect

Purge water from a typical wet flue gas desulfurization system contains myriad chemical constituents and heavy metals whose mixture is determined by the fuel source and combustion products as well as the stack gas treatment process. A well-designed water treatment system can tolerate upstream fuel and sorbent arranged in just the right order to produce wastewater acceptable for discharge. This article presents state-of-the-art technologies for treating the waste water that is generated by wet FGD systems. 11 figs., 3 tabs.

Higgins, T.E.; Sandy, A.T.; Givens, S.W.

2009-03-15T23:59:59.000Z

97

Induced Flue Gas Recirculation Performance Tests  

Science Conference Proceedings (OSTI)

Induced Flue Gas Recirculation (IFGR) is a proven, low-cost method for controlling NOx emissions on gas-fired utility boilers. In 1997, IFGR technology for power generation applications was first demonstrated at Entergy's Willow Glen station, near Baton Rouge, LA. Following the success with IFGR at Willow Glen, four members of the Gas/Oil Fired Boiler Performance and Combustion NOx Control Target (No.55 in 2000) installed, or plan to install, IFGR on an additional 27 units. American Electric Power has im...

2000-07-03T23:59:59.000Z

98

DRY FLUE GAS CLEANING PROCESSES FOR ACHIEVING AIR POLLUTANT EMISSIONS  

E-Print Network (OSTI)

was mercury adsorption onto calcium sulfate (CaSO4), a byproduct of the flue gas desulfurization (FGD) wet., Powers K.W., and Pitoniak E.R. (2004) Method for Purifying Flue Gases from Combustion Sources. PatentCoupling of Advanced Oxidation and Adsorption Processes onto Silica-Titania Composites for Low

Columbia University

99

Catalysts for Oxidation of Mercury in Flue Gas  

NLE Websites -- All DOE Office Websites (Extended Search)

Catalysts for Oxidation of Mercury in Flue Gas Catalysts for Oxidation of Mercury in Flue Gas Opportunity The Department of Energy's National Energy Technology Laboratory (NETL) is seeking licensing partners interested in implementing United States Patent Number 7,776,780 entitled "Catalysts for Oxidation of Mercury in Flue Gas." Disclosed in this patent are catalysts for the oxidation of elemental mercury in flue gas. These novel catalysts include iridium (Ir), platinum/iridium (Pt/Ir), and Thief carbons. The catalyst materials will adsorb the oxidizing agents HCl, Cl 2 , and other halogen species in the flue gas stream that are produced when fuel is combusted. These adsorbed oxidizing agents can then react with elemental mercury in the stream, which is difficult to capture, and oxidize it to form Hg (II) species,

100

Identification of Unknown Selenium Species in Flue Gas Desulfurization Water  

Science Conference Proceedings (OSTI)

Flue gas desulfurization (FGD) is a process used in the electrical power industry to remove sulfur dioxide (SO2) from flue gas produced by coal-fired power plants. In a wet FGD system, circulating water must be periodically blown down and treated to remove solids and dissolved chemicals. Along with SO2, other substances in flue gas may dissolve in water, including selenium (Se). In addition to the common selenium species selenite and selenate, past research has identified selenium-containing species that...

2008-03-25T23:59:59.000Z

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Thief Process Removal of Mercury from Flue Gas  

NLE Websites -- All DOE Office Websites (Extended Search)

Process for the Removal of Mercury from Flue Gas Process for the Removal of Mercury from Flue Gas Opportunity The Department of Energy's National Energy Technology Laboratory (NETL) is seeking licensing partners interested in implementing United States Patent Number 6,521,021 entitled "Thief Process for the Removal of Mercury from Flue Gas." Disclosed in this patent is a novel process in which partially combusted coal is removed from the combustion chamber of a power plant using a lance (called a "thief"). This partially combusted coal acts as a thermally activated adsorbent for mercury. When it is in- jected into the duct work of the power plant downstream from the exit port of the combustion chamber, mercury within the flue gas contacts and adsorbs onto the thermally activated sorbent. The sorbent-mercury

102

Multi-component Removal in Flue Gas by Aqua Ammonia  

NLE Websites -- All DOE Office Websites (Extended Search)

component Removal in Flue Gas by Aqua Ammonia component Removal in Flue Gas by Aqua Ammonia Opportunity The Department of Energy's National Energy Technology Laboratory is seeking licensing partners interested in implementing United States Patent Number 7,255,842 entitled "Multi-component Removal in Flue Gas by Aqua Ammonia." This patent discloses a method for the removal of potential environmental-impacting compounds from flue gas streams. The method oxidizes some or all of the acid precursors such as sulfur dioxide (SO 2 ) and nitric oxides (NO x ) into sulfur trioxide and nitrogen dioxide, respectively. Following this step, the gas stream is then treated with aqua ammonia or ammonium hydroxide to capture the compounds via chemical absorption through acid-base or neutralization reactions where a fertilizer is formed.

103

CO2 Capture Membrane Process for Power Plant Flue Gas  

NLE Websites -- All DOE Office Websites (Extended Search)

Membrane Process for Power Plant Flue Gas Background The mission of the U.S. Department of Energy's (DOE) Existing Plants, Emissions & Capture (EPEC) Research and Development (R&D)...

104

Mathematical modeling of wet magnesia flue gas desulphurization process  

Science Conference Proceedings (OSTI)

Desulphurization of flue gases from various chemical industries in a techno-econo-enviro manner is a demanding technology. The concentrations of sulphur dioxide in and around these plants overshoot the danger point. In recent years, the process analysis ...

M. K. Mondal

2008-01-01T23:59:59.000Z

105

Carbon Dioxide Capture from Flue Gas Using Dry Regenerable Sorbents  

NLE Websites -- All DOE Office Websites (Extended Search)

Mill Road P.O. Box 10940 Pittsburgh, PA 15236 412-386-4966 jose.figueroa@netl.doe.gov Carbon DioxiDe Capture from flue Gas usinG Dry reGenerable sorbents Background Currently...

106

Evaluation of Selenium Species in Flue Gas Desulfurization Waters  

Science Conference Proceedings (OSTI)

Flue gas desulfurization (FGD) is a process used in the electrical power industry to remove sulfur dioxide from flue gas produced by coal-fired power plants. The trace element selenium is found in coal and can become concentrated in the wastewater from the FGD process. Some chemical forms, or species, of selenium are more resistant to removal by water treatment processes than others; thus, understanding the speciation of selenium is important to designing effective wastewater treatment systems. In additi...

2009-03-23T23:59:59.000Z

107

Guidelines for Flue Gas Desulfurization (FGD) Water Sampling and Analysis  

Science Conference Proceedings (OSTI)

Flue gas desulfurization (FGD) scrubbers are being installed on coal-fired power plants in response to federal and state air pollution regulations limiting sulfur dioxide emissions. FGD scrubbers produce an aqueous waste stream that contains metals adsorbed from flue gas. At the same time, the U.S. Environmental Protection Agency (EPA) is reviewing, and may tighten, water discharge limits on trace metals. Collection of accurate data on the trace metal composition of FGD water discharges is therefore esse...

2009-03-27T23:59:59.000Z

108

Flue gas desulfurization/denitrification using metal-chelate additives  

DOE Patents (OSTI)

A method of simultaneously removing SO/sub 2/ and NO from oxygen-containing flue gases resulting from the combustion of carbonaceous material by contacting the flue gas with an aqueous scrubber solution containing an aqueous sulfur dioxide sorbent and an active metal chelating agent which promotes a reaction between dissolved SO/sub 2/ and dissolved NO to form hydroxylamine N-sulfonates. The hydroxylamine sulfonates are then separated from the scrubber solution which is recycled. 3 figs.

Harkness, J.B.L.; Doctor, R.D.; Wingender, R.J.

1985-08-05T23:59:59.000Z

109

Trace Metals Determination in Flue Gas Desulfurization Water  

Science Conference Proceedings (OSTI)

Flue gas desulfurization (FGD) scrubbers are used on coal-fired power plants to reduce sulfur dioxide emissions to air. While effective for this purpose, wet FGD scrubbers produce an aqueous blowdown stream that contains trace levels of metals adsorbed from flue gas. Power plant owners need to measure concentrations of these metals for purposes of process control, discharge monitoring, or design and operation of wastewater treatment systems. FGD water has proven to be a very difficult matrix to analyze a...

2009-12-28T23:59:59.000Z

110

Method and apparatus for forming flues on tubular stock  

DOE Patents (OSTI)

The present invention is directed to a die mechanism utilized for forming flues on long, relatively narrow tubular stock. These flues are formed by displacing a die from within the tubular stock through perforations previously drilled through the tubular stock at selected locations. The drawing of the die upsets the material to form the flue of the desired configuration. The die is provided with a lubricating system which enables the lubricant to be dispensed uniformly about the entire periphery of the die in contact with the material being upset so as to assure the formation of the flues. Further, the lubricant is dispensed from within the die onto the peripheral surface of the latter at pressures in the range of about 2000 to 10,000 psi so as to assure the adequate lubrication of the die during the drawing operation. By injecting the lubricant at such high pressures, low viscosity liquid, such as water and/or alcohol, may be efficiently used as a lubricant and also provides a mechanism by which the lubricant may be evaporated from the surface of the flues at ambient conditions so as to negate the cleansing operations previously required prior to joining the flues to other conduit mechanisms by fusion welding and the like.

Beck, D.E.; Carson, C.

1979-12-21T23:59:59.000Z

111

NETL: Development and Demonstration of Waste Heat Integration...  

NLE Websites -- All DOE Office Websites (Extended Search)

performance of the integrated PC plant and CO2 capture process. The HES system is a heat exchanger that extracts waste heat from flue gas exiting the power plant's...

112

Fundamental mechanisms in flue gas conditioning  

Science Conference Proceedings (OSTI)

This project is divided into four tasks. The Management Plan was developed in task 1. Task 2, Evaluation of Mechanisms in FGD Sorbent and Ash Interactions, focuses on the characteristics of binary mixtures of these distinct powders. Task 3, Evaluation of Mechanisms in Conditioning Agents and Ash, is designed to examine the effects of various conditioning agents on fine ash particles to determine the mechanisms by which these agents alter the physical properties of the ash. Tasks 2 and 3 began with an extensive literature search and the assembly of existing theories. This phase of the project is now complete. During the past quarter, initial preparations of laboratory equipment for laboratory testing have been made. A plan for initial laboratory tests has been submitted to the Project Manager for review. Laboratory testing will commence once these laboratory plans have been formally approved. The results of the work performed under task 2 and 3 will be included in a Flue Gas Conditioning Model that will be issued under task 4. The Final Report for the project will also be prepared under task 4.

Snyder, T.R.; Robinson, M.S.; Bush, P.V.

1992-04-27T23:59:59.000Z

113

Fundamental mechanisms in flue gas conditioning  

Science Conference Proceedings (OSTI)

This project is divided into four tasks. Task 1 is the Development of a Management Plan. Task 2, Evaluation of Mechanisms in FGD Sorbent and Ash Interactions, focuses on the characteristics of binary mixtures of these distinct powders. Task 3, Evaluation of Mechanisms in Conditioning Agents and Ash, is designed to examine the effects of various conditioning agents on fine ash particles to determine the mechanisms by which these agents alter the physical properties of the ash. Tasks 2 and 3 began with an extensive literature search and the assembly of existing theories. The results of the work performed under Tasks 2 and 3 will be included in a Flue Gas Conditioning Model that will be issued under Task 4. The Final Report for the project will also be prepared under Task 4. This quarterly report covers four months in order to synchronize the reporting periods for this project with US Government quarters. Work performed on the project during the past quarter consisted almost entirely of the review of literature pertaining to the objectives of Tasks 2 and 3. The primary results of that review are discussed at length in Topical Reports 1 and 2, submitted January 9, 1992. As a consequence of the work described in the topical reports, several of the project's Measures of Success that were described in the first quarterly report have been achieved. This quarterly report will discuss these achievements.

Snyder, T.R.

1992-01-23T23:59:59.000Z

114

Automatic flue gas heat recovery system  

Science Conference Proceedings (OSTI)

An automatic flue gas heat recovery system for supplementing or replacing a conventional, separate hot water system. In the example described, the heat recovery system is applied to a pizza restaurant where large quantities of heat energy are normally wasted up an oven chimney stack, and large quantities of hot water also are required for restaurant operations. An electric motor driven pump circulates water in a closed loop between a storage tank and a heat exchanger tube located in the oven chimney stack. A thermostat control automatically starts the pump when the oven heats the chimney stack to an effective water heating temperature. When temperature in the storage tank reaches a predetermined maximum, the thermostat control stops the pump, opens a drain valve, and dumps water quickly and completely from the heat exchanger tube. Three different embodiments are shown and described illustrating systems with one or more storage tanks and one or more pumps. In the plural storage tank embodiments, an existing hot water heating tank may be converted for use to augment a main tank supplied with the present system.

Whalen, D.A.

1983-02-22T23:59:59.000Z

115

Flue gas desulfurization: Physicochemical and biotechnological approaches  

Science Conference Proceedings (OSTI)

Various flue gas desulfurization processes - physicochemical, biological, and chemobiological - for the reduction of emission of SO{sub 2} with recovery of an economic by-product have been reviewed. The physicochemical processes have been categorized as 'once-through' and 'regenerable.' The prominent once-through technologies include wet and dry scrubbing. The wet scrubbing technologies include wet limestone, lime-inhibited oxidation, limestone forced oxidation, and magnesium-enhanced lime and sodium scrubbing. The dry scrubbing constitutes lime spray drying, furnace sorbent injection, economizer sorbent injection, duct sorbent injection, HYPAS sorbent injection, and circulating fluidized bed treatment process. The regenerable wet and dry processes include the Wellman Lord's process, citrate process, sodium carbonate eutectic process, magnesium oxide process, amine process, aqueous ammonia process, Berglau Forchung's process, and Shell's process. Besides these, the recently developed technologies such as the COBRA process, the OSCAR process, and the emerging biotechnological and chemobiological processes are also discussed. A detailed outline of the chemistry, the advantages and disadvantages, and the future research and development needs for each of these commercially viable processes is also discussed.

Pandey, R.A.; Biswas, R.; Chakrabarti, T.; Devotta, S. [National Environmental Engineering Research Institute, Nagpur (India)

2005-07-01T23:59:59.000Z

116

Fundamental mechanisms in flue gas conditioning. Final report  

SciTech Connect

The US Department of Energy`s Pittsburgh Energy Technology Center (DOE/PETC) initiated this project as part of a program to study the control of fine particles from coal combustion. Our project focus was flue gas conditioning. Various conditioning processes have lowered operating costs and increased collection efficiency at utility particulate control devices. By improving fine particle collection, flue gas conditioning also helps to control the emission of toxic metals, which are concentrated in the fine particle fraction. By combining a review of pertinent literature, laboratory characterization of a variety of fine powders and ashes, pilot-scale studies of conditioning mechanisms, and field experiences, Southern Research Institute has been able to describe many of the key processes that account for the effects that conditioning can have on fine-particle collection. The overall goal of this research project was to explain the mechanisms by which various flue gas conditioning processes alter the performance of particulate control devices. Conditioning involves the modification of one or more of the parameters that determine the magnitude of the forces acting on the fly ash particles. Resistivity, chemistry, cohesivity, size distribution, and particle morphology are among the basic properties of fly ash that significantly influence fine particle collection. Modifications of particulate properties can result in improved or degraded control device performance. These modifications can be caused by (1) changes to the process design or operation that affect properties of the flue gas, (2) addition of particulate matter such as flue-gas desulfurization sorbents to the process effluent stream, (3) injection of reactive gases or liquids into the flue gas. We recommend that humidification be seriously considered as a flue gas conditioning option. 80 refs., 69 figs., 23 tabs.

Snyder, T.R.; Bush, P.V.; Dahlin, R.S.

1996-03-20T23:59:59.000Z

117

Particulate emissions from combustion of biomass in conventional combustion (air) and oxy-combustion conditions.  

E-Print Network (OSTI)

??Oxy-fuel combustion is a viable technology for new and existing coal-fired power plants, as it facilitates carbon capture and thereby, can reduce carbon dioxide emissions. (more)

Ruscio, Amanda

2013-01-01T23:59:59.000Z

118

Task 2: Materials for Advanced Boiler and Oxy-combustion Systems  

Science Conference Proceedings (OSTI)

Characterize advanced boiler (oxy-fuel combustion, biomass cofired) gas compositions and ash deposits Generate critical data on the effects of environmental conditions; develop a unified test method with a view to future standardisation

G. R. Holcomb and B. McGhee

2009-05-01T23:59:59.000Z

119

OTM Based OxyCombustion for CO{sub 2} Capture from Coal Power Plants  

Science Conference Proceedings (OSTI)

This report outlines accomplishments for the following tasks: Task 1 ?? Process and Systems Engineering, Task 2 ?? OTM Performance Improvement, Task 3 ?? OTM Manufacturing Development, Task 4 - Laboratory Scale Testing and Task 5 ?? Project Management.

Sean Kelly; Joan Geary; Wladimir Sarmiento-Darkin; Juan Li; John Peck; Brian Kromer; Minish Shah; Nick Degenstein; Jamie Wilson; Max Christie; Eric Eddings; Joseph Adams; Prabhakar Singh

2013-01-01T23:59:59.000Z

120

Task 2Materials for Advanced Boiler and Oxy-combustion Systems (NETL-US), a  

SciTech Connect

Develop a method for determining the solubility of protective oxides (Fe2O3, Cr2O3 and NiO) in an ash exposed at a particular temperature and gas composition. Metal oxide powder (Cr2O3 and NiO) will be mixed with a synthetic ash, milled for complete mixing, exposed at a variety of exposure times, and removed for analysis. A decision will be made based on the results on to going further with the next tasks. Perform the solubility tests on synthetic ashes and ashes collected from various oxyfuel burner rigs. Correlate the solubility with long term corrosion tests and variables from the b i 4 burner rig tests.

G. R. Holcomb

2010-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Page not found | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

21 - 9730 of 26,764 results. 21 - 9730 of 26,764 results. Download CX-000730: Categorical Exclusion Determination Skyonic Beneficial Carbon Dioxide Use Project: Interagency Coordinating Committees (ICCs) Area of Interest 2; Phase 1 only CX(s) Applied: A1, A9, A11 Date: 01/15/2010 Location(s): San Antonio, Texas Office(s): Fossil Energy, National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-000730-categorical-exclusion-determination Download CX-000729: Categorical Exclusion Determination A Novel Integrated Oxy-Combustion Flue Gas Purification Technology: A Near-Zero Emissions Pathway CX(s) Applied: A9 Date: 01/13/2010 Location(s): Livingston, New Jersey Office(s): Fossil Energy, National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-000729-categorical-exclusion-determination

122

Flue gas injection control of silica in cooling towers.  

Science Conference Proceedings (OSTI)

Injection of CO{sub 2}-laden flue gas can decrease the potential for silica and calcite scale formation in cooling tower blowdown by lowering solution pH to decrease equilibrium calcite solubility and kinetic rates of silica polymerization. Flue gas injection might best inhibit scale formation in power plant cooling towers that use impaired makeup waters - for example, groundwaters that contain relatively high levels of calcium, alkalinity, and silica. Groundwaters brought to the surface for cooling will degas CO{sub 2} and increase their pH by 1-2 units, possibly precipitating calcite in the process. Recarbonation with flue gas can lower the pHs of these fluids back to roughly their initial pH. Flue gas carbonation probably cannot lower pHs to much below pH 6 because the pHs of impaired waters, once outgassed at the surface, are likely to be relatively alkaline. Silica polymerization to form scale occurs most rapidly at pH {approx} 8.3 at 25 C; polymerization is slower at higher and lower pH. pH 7 fluids containing {approx}220 ppm SiO{sub 2} require > 180 hours equilibration to begin forming scale whereas at pH 8.3 scale formation is complete within 36 hours. Flue gas injection that lowers pHs to {approx} 7 should allow substantially higher concentration factors. Periodic cycling to lower recoveries - hence lower silica concentrations - might be required though. Higher concentration factors enabled by flue gas injection should decrease concentrate volumes and disposal costs by roughly half.

Brady, Patrick Vane; Anderson, Howard L., Jr.; Altman, Susan Jeanne

2011-06-01T23:59:59.000Z

123

Mercury Control Research: Effects of Fly Ash and Flue Gas Parameters on Mercury Speciation  

E-Print Network (OSTI)

and fly ash parameters on the oxidation of HgOin simulated flue gases containing hydrogen chloride (Hel-combustion region are unknown, and the major reaction pathways for Hg oxidation in combustion flue gases remain in the oxidation ofHgo in flue gases containingHC!. Thus, an important parameter that influences the oxidation of

Columbia University

124

Application Investigation on Polyureas Anticorrosion for Concrete Surface in Desulphurization Flue  

Science Conference Proceedings (OSTI)

Application investigation on polyureas anticorrosion in flue of Wet Flue Gas Desulphurization Equipment (FGD) (product model: DTTW-? -150) was carried out according to corrosive environment and technical parameters of a coal-fired power plan. And ... Keywords: spray, polyureas, flue, corrosion margin

Song Wei; Liu Zongyu

2010-03-01T23:59:59.000Z

125

Carbon Dioxide Sequestration with Flue Gas Desulfurization (FGD) Gypsum  

Science Conference Proceedings (OSTI)

Carbonation of industrial alkaline residues can be used as a CO2 sequestration technology to reduce carbon dioxide emissions. In this study, alkaline Ca-rich flue gas desulfurization (FGD) gypsum samples were carbonated to a varying extent. These materials ... Keywords: FGD gypsum, carbonation, carbon dioxide

Hongqi Wang; Ningning Sun; Rona J. Donahoe

2009-07-01T23:59:59.000Z

126

Modeling Incinerator Flue Train Performance with a Digital Computer  

E-Print Network (OSTI)

as a matrix of pressure/volume points, along with fan speed and horsepower requirements at the design point of incinerator performance under a wide range of conditions, Furnace and flue train design data are fed that requirements can be met under all conditions at a reasonable cost. The municipal design picture is complicated

Columbia University

127

BUILDING MATERIALS MADE FROM FLUE GAS DESULFURIZATION BY-PRODUCTS  

SciTech Connect

Flue gas desulphurization (FGD) materials are produced in abundant quantities by coal burning utilities. Due to environmental restrains, flue gases must be ''cleaned'' prior to release to the atmosphere. They are two general methods to ''scrub'' flue gas: wet and dry. The choice of scrubbing material is often defined by the type of coal being burned, i.e. its composition. Scrubbing is traditionally carried out using a slurry of calcium containing material (slaked lime or calcium carbonate) that is made to contact exiting flue gas as either a spay injected into the gas or in a bubble tower. The calcium combined with the SO{sub 2} in the gas to form insoluble precipitates. Some plants have been using dry injection of these same materials or their own Class C fly ash to scrub. In either case the end product contains primarily hannebachite (CaSO{sub 3} {center_dot} 1/2H{sub 2}O) with smaller amounts of gypsum (CaSO{sub 4} {center_dot} 2H{sub 2}O). These materials have little commercial use. Experiments were carried out that were meant to explore the feasibility of using blends of hannebachite and fly ash mixed with concentrated sodium hydroxide to make masonry products. The results suggest that some of these mixtures could be used in place of conventional Portland cement based products such as retaining wall bricks and pavers.

Michael W. Grutzeck; Maria DiCola; Paul Brenner

2006-03-30T23:59:59.000Z

128

Flue Gas Desulfurization Scrubber Maintenance Guide: Gypsum Dewatering Area  

Science Conference Proceedings (OSTI)

Flue Gas Desulfurization Scrubber Maintenance Guide: Gypsum Dewatering Area provides fossil plant maintenance personnel with current maintenance information on this system. This report will assist the plant maintenance personnel in improving the reliability and reducing the maintenance costs for this area of their scrubber system.

2009-12-08T23:59:59.000Z

129

Flue Gas Desulfurization Scrubber Maintenance Guide: Absorber Area  

Science Conference Proceedings (OSTI)

The Flue Gas Desulfurization Scrubber Maintenance Guide: Absorber Area provides fossil plant maintenance personnel with current maintenance information on this system and will help to improve the reliability of and reduce the maintenance costs for this area of their scrubber system.

2008-12-18T23:59:59.000Z

130

Flue Gas Desulfurization Scrubber Maintenance Guide: Reagent Preparation Area  

Science Conference Proceedings (OSTI)

The Flue Gas Desulfurization Scrubber Maintenance Guide: Reagent Preparation Area provides the fossil plant maintenance personnel with current maintenance information on this system and will help improve the reliability and reduce the maintenance costs for this area of their scrubber system.

2008-12-15T23:59:59.000Z

131

Control of pollutants in flue gases and fuel gases  

E-Print Network (OSTI)

. Mercury typically forms the sulfide (HgS) #12;4 because of the prevalence of sulfides in volcanic gases Aq + 2e-- ´ Hg0 Atmos Equation 1 Ionic mercury can form from the oxidation of elemental mercury Coal is known to contain mercury as a result of testing done upon the flue gas emitted from power plant

Laughlin, Robert B.

132

Investigation of Flue Gas Desulfurization Chemical Process Problems  

Science Conference Proceedings (OSTI)

An understanding of flue gas desulfurization process chemistry is crucial in troubleshooting problems in operating FGD systems. This report discusses a variety of problems and solutions associated with process chemistry for 25 different wet FGD systems, including lime/limestone and double alkali processes. Among the problems addressed are SO2 removal, mist eliminator scaling, poor solids dewatering, and water management.

1990-09-10T23:59:59.000Z

133

Control of pollutants in flue gases and fuel gases  

E-Print Network (OSTI)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 2.2 Flue gases and fuel gases: combustion, gasification, pyrolysis, incineration and other and gasification technologies for heat and power . . . . . . . . 2-3 2.4 Waste incineration and waste . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 3.3 Formation of sulphur compounds during combustion and gasification . . 3-5 3.4 Emission

Zevenhoven, Ron

134

Flue-gas carbon capture on carbonaceous sorbents: Toward a low-cost multifunctional Carbon Filter for 'Green' energy producers  

SciTech Connect

A low-pressure Carbon Filter Process (patent pending) is proposed to capture carbon dioxide (CO{sub 2}) from flue gas. This filter is filled with a low-cost carbonaceous sorbent, such as activated carbon or charcoal, which has a high affinity (and, hence, high capacity) to CO{sub 2} but not to nitrogen (N{sub 2}). This, in turn, leads to a high CO{sub 2}/N{sub 2} selectivity, especially at low pressures. The Carbon Filter Process proposed in this work can recover at least 90% of flue-gas CO{sub 2} of 90%+ purity at a fraction of the cost normally associated with the conventional amine absorption process. The Carbon Filter Process requires neither expensive materials nor flue-gas compression or refrigeration, and it is easy to heat integrate with an existing or grassroots power plant without affecting the cost of the produced electricity too much. An abundant supply of low-cost CO{sub 2} from electricity producers is good news for enhanced oil recovery (EOR) and enhanced coal-bed methane recovery (ECBMR) operators, because it will lead to higher oil and gas recovery rates in an environmentally sensitive manner. A CO{sub 2}-rich mixture that contains some nitrogen is much less expensive to separate from flue-gas than pure CO{sub 2}; therefore, mixed CO{sub 2}/N{sub 2}-EOR and CO{sub 2}/N{sub 2}-ECBMR methods are proposed to maximize the overall carbon capture and utilization efficiency.

Radosz, M.; Hu, X.D.; Krutkramelis, K.; Shen, Y.Q. [University of Wyoming, Laramie, WY (United States)

2008-05-15T23:59:59.000Z

135

NO, Burnout, Flame Temperature, Emissivity, and Radiation Intensity from Oxycombustion Flames.  

E-Print Network (OSTI)

??This work produced the retrofit of an air-fired, 150 kW reactor for oxy-combustion which was then used in three oxy-combustion studies: strategic oxy-combustion design, oxy-combustion (more)

Zeltner, Darrel Patrick

2012-01-01T23:59:59.000Z

136

Recovery of CO2 from Flue Gases: Commercial Trends  

NLE Websites -- All DOE Office Websites (Extended Search)

CO CO 2 from Flue Gases: Commercial Trends Originally presented at the Canadian Society of Chemical Engineers annual meeting October 4-6, 1999, Saskatoon, Saskatchewan, Canada Authors: Dan G. Chapel (dan.chapel@fluor.com; 949-349-7530) Carl L. Mariz (carl.mariz@fluor.com; 949-349-7530) FluorDaniel One Fluor Drive Aliso Viejo CA, 92698 John Ernest (john.ernest@minimed.com; 818-576-4293) Advanced Quality Services Inc 11024 Balboa Blvd. PMB154, Granada Hills, CA 91344-5007 1 Recovery of CO 2 from Flue Gases: Commercial Trends Originally presented at the Canadian Society of Chemical Engineers annual meeting October 4-6, 1999, Saskatoon, Saskatchewan, Canada Authors: Dan Chapel - Fluor Daniel Inc., Senior Vice President Technology; Oil, Gas & Power John Ernest - Advanced Quality Services Inc., Validation Engineer

137

CARBON DIOXIDE CAPTURE FROM FLUE GAS USING DRY REGENERABLE SORBENTS  

Science Conference Proceedings (OSTI)

This report describes research conducted between October 1, 2004 and December 31, 2004 on the use of dry regenerable sorbents for removal of carbon dioxide from flue gas. Two supported sorbents were tested in a bench scale fluidized bed reactor system. The sorbents were prepared by impregnation of sodium carbonate on to an inert support at a commercial catalyst manufacturing facility. One sorbent, tested through five cycles of carbon dioxide sorption in an atmosphere of 3% water vapor and 0.8 to 3% carbon dioxide showed consistent reactivity with sodium carbonate utilization of 7 to 14%. A second, similarly prepared material, showed comparable reactivity in one cycle of testing. Batches of 5 other materials were prepared in laboratory scale quantities (primarily by spray drying). These materials generally have significantly greater surface areas than calcined sodium bicarbonate. Small scale testing showed no significant adsorption of mercury on representative carbon dioxide sorbent materials under expected flue gas conditions.

David A. Green; Brian S. Turk; Jeffrey W. Portzer; Thomas Nelson; Raghubir P. Gupta

2005-01-01T23:59:59.000Z

138

Flue gas conditioning for improved particle collection in electrostatic precipitators  

SciTech Connect

The purpose of this research program is to identify and evaluate a variety of additives capable of increasing particle cohesion which could be used for improving collection efficiency in an ESP. A three-phase screening process will be used to provide the, evaluation of many additives in a logical and cost-effective manner. The three step approach involves the following experimental setups: 1. Provide a preliminary screening in the laboratory by measuring the effects of various conditioning agents on reentrainment of flyash particles in an electric field operating at simulated flue gas conditions. 2. Evaluate the successful additives using a 100 acfm bench-scale ESP operating on actual flue gas. 3. Obtain the data required for scaling up the technology by testing the two or three most promising conditioning agents at the pilot scale.

Durham, M.D.

1992-04-27T23:59:59.000Z

139

Measurement of biocarbon in flue gases using 14C  

SciTech Connect

A preliminary investigation of the biocarbon fraction in carbon dioxide emissions of power plants using both fossil- and biobased fuels is presented. Calculation of the biocarbon fraction is based on radiocarbon content measured in power plant flue gases. Samples were collected directly from the chimneys into plastic sampling bags. The C-14 content in CO{sub 2} was measured by accelerator mass spectrometry (AMS). Flue gases from power plants that use natural gas, coal, wood chips, bark, plywood residue, sludge from the pulp factory, peat, and recovered fuel were measured. Among the selected plants, there was one that used only fossil fuel and one that used only biofuel; the other investigated plants burned mixtures of fuels. The results show that C-14 measurement provides the possibility to determine the ratio of bio and fossil fuel burned in power plants.

Haemaelaeinen, K.M.; Jungner, H.; Antson, O.; Rasanen, J.; Tormonen, K.; Roine, J. [University of Helsinki, Helsinki (Finland). Radiocarbon Dating Laboratory

2007-07-01T23:59:59.000Z

140

Biominetic Membrane for Co2 Capture from Flue Gas  

NLE Websites -- All DOE Office Websites (Extended Search)

Biomimetic Membrane for CO Biomimetic Membrane for CO 2 Capture from Flue Gas Background Carbon Capture and Sequestration (CCS) is a three-step process including capture, pipeline transport, and geologic storage of which the capture of carbon dioxide (CO 2 ) is the most costly and technically challenging. Current available methods impose significant energy burdens that severely impact their overall effectiveness as a significant deployment option. Of the available capture technologies for post

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

2009 Update on Mercury Capture by Wet Flue Gas Desulfurization  

Science Conference Proceedings (OSTI)

This technical update presents results of four research and development projects focused on understanding and enhancing mercury emissions control associated with wet flue gas desulfurization (FGD) technology. The first project was directed at characterizing partitioning of elemental and oxidized mercury species in solid, liquid, and gas phases within process streams involved in an operating commercial system. The second project explored dewatering options with an objective of producing low-mercury-conten...

2009-12-15T23:59:59.000Z

142

Flue Gas Desulfurization (FGD) Wastewater Characterization and Management: 2007 Update  

Science Conference Proceedings (OSTI)

Tightened air regulations on acid-gas-forming emissions are leading more electric utilities to install flue gas desulfurization (FGD) systems, typically wet scrubbers. However, there are challenges associated with such decisions in terms of utility wastewater management. Volatile metals, such as selenium and mercury, are better captured in wet scrubber systems than in electrostatic precipitators and may be present at higher concentrations in utility wastewater systems. This report is designed to help pow...

2008-03-31T23:59:59.000Z

143

Air Toxics Control by Wet Flue Gas Desulfurization Systems  

Science Conference Proceedings (OSTI)

This report provides an update on three tasks associated with the EPRI project, Air Toxics Control by Wet Flue Gas Desulfurization (FGD) Systems. The first task is an investigation of the factors that influence and control the oxidation-reduction potential (ORP) at which a limestone forced oxidation FGD system operates. Both a literature review and a numerical analysis of full-scale wet FGD data were conducted. Results from this task are presented and discussed in Section 2 of the ...

2012-12-31T23:59:59.000Z

144

The Thief Process for Mercury Removal from Flue Gas  

E-Print Network (OSTI)

The Thief Process is a cost-effective variation to activated carbon injection (ACI) for removal of mercury from flue gas. In this scheme, partially combusted coal from the furnace of a pulverized coal power generation plant is extracted by a lance and then re-injected into the ductwork downstream of the air preheater. Recent results on a 500-lb/hr pilot-scale combustion facility show similar removals of mercury for both the Thief Process and ACI. The tests conducted to date at laboratory, bench, and pilot-scales demonstrate that the Thief sorbents exhibit capacities for mercury from flue gas streams that are comparable to those exhibited by commercially available activated carbons. Independent verification of the sorbent activity at a pilot-plant that uses a slipstream from a Wisconsin utility has been accomplished. A patent for the process was issued in February 2003 [1]. The Thief sorbents are cheaper than commerciallyavailable activated carbons; exhibit excellent capacities for mercury; and the overall process holds great potential for reducing the cost of mercury removal from flue gas [1-4].

Evan J. Granite; Mark C. Freeman; Richard A. Hargis; William J. Odowd; Henry W. Pennline

2004-01-01T23:59:59.000Z

145

Enhanced Elemental Mercury Removal from Coal-fired Flue Gas by Sulfur-chlorine Compounds  

E-Print Network (OSTI)

efficiency by sulfur and/or chlorine containing compounds atfired Flue Gas by Sulfur-chlorine Compounds Nai-Qiang Yanremoval. Two sulfur-chlorine compounds, sulfur dichloride (

Miller, Nai-Qiang Yan-Zan Qu Yao Chi Shao-Hua Qiao Ray Dod Shih-Ger Chang Charles

2008-01-01T23:59:59.000Z

146

NETL: IEP ? Post-Combustion CO2 Emissions Control - Flue Gas...  

NLE Websites -- All DOE Office Websites (Extended Search)

Flue Gas Purification Utilizing SOx NOx Reactions During Compression of CO2 Derived from Oxyfuel Combustion Project No.: DE-NT0005309 Air Products and Chemicals Inc. will...

147

Co-Removal of Mercury from Coal-Fired Power Plant Flue Gas with...  

NLE Websites -- All DOE Office Websites (Extended Search)

combustion conditions, and air pollution control devices upstream of a power plant FGD system have an impact on the types and concentration of flue gas mercury at the...

148

Microsoft Word - Flue Gas Moisture.Final Report.Abstract.Summary...  

NLE Websites -- All DOE Office Websites (Extended Search)

were performed to determine the relationship between flue gas moisture concentration, heat exchanger design and operating conditions, and water vapor condensation rate. The...

149

Transport Membrane Condenser for Water and Energy Recovery from Power Plant Flue Gas  

Science Conference Proceedings (OSTI)

The new waste heat and water recovery technology based on a nanoporous ceramic membrane vapor separation mechanism has been developed for power plant flue gas application. The recovered water vapor and its latent heat from the flue gas can increase the power plant boiler efficiency and reduce water consumption. This report describes the development of the Transport Membrane Condenser (TMC) technology in details for power plant flue gas application. The two-stage TMC design can achieve maximum heat and water recovery based on practical power plant flue gas and cooling water stream conditions. And the report includes: Two-stage TMC water and heat recovery system design based on potential host power plant coal fired flue gas conditions; Membrane performance optimization process based on the flue gas conditions, heat sink conditions, and water and heat transport rate requirement; Pilot-Scale Unit design, fabrication and performance validation test results. Laboratory test results showed the TMC system can exact significant amount of vapor and heat from the flue gases. The recovered water has been tested and proved of good quality, and the impact of SO{sub 2} in the flue gas on the membrane has been evaluated. The TMC pilot-scale system has been field tested with a slip stream of flue gas in a power plant to prove its long term real world operation performance. A TMC scale-up design approach has been investigated and an economic analysis of applying the technology has been performed.

Dexin Wang

2012-03-31T23:59:59.000Z

150

CARBON DIOXIDE CAPTURE FROM FLUE GAS USING DRY REGENERABLE SORBENTS  

Science Conference Proceedings (OSTI)

Laboratory studies were conducted to investigate dry, regenerable, alkali carbonate-based sorbents for the capture of CO{sub 2} from power plant flue gas. Electrobalance, fixed-bed and fluid-bed reactors were used to examine both the CO{sub 2} capture and sorbent regeneration phases of the process. Sodium carbonate-based sorbents (calcined sodium bicarbonate and calcined trona) were the primary focus of the testing. Supported sodium carbonate and potassium carbonate sorbents were also tested. Sodium carbonate reacts with CO{sub 2} and water vapor contained in flue gas at temperatures between 60 and 80 C to form sodium bicarbonate, or an intermediate salt (Wegscheider's salt). Thermal regeneration of this sorbent produces an off-gas containing equal molar quantities of CO{sub 2} and H{sub 2}O. The low temperature range in which the carbonation reaction takes place is suited to treatment of coal-derived flue gases following wet flue gas desulfurization processes, but limits the concentration of water vapor which is an essential reactant in the carbonation reaction. Sorbent regeneration in an atmosphere of CO{sub 2} and water vapor can be carried out at a temperature of 160 C or higher. Pure CO{sub 2} suitable for use or sequestration is available after condensation of the H{sub 2}O. Flue gas contaminants such as SO{sub 2} react irreversibly with the sorbent so that upstream desulfurization will be required when sulfur-containing fossil fuels are used. Approximately 90% CO{sub 2} capture from a simulated flue gas was achieved during the early stages of fixed-bed reactor tests using a nominal carbonation temperature of 60 C. Effectively complete sorbent carbonation is possible when the fixed-bed test is carried out to completion. No decrease in sorbent activity was noted in a 15-cycle test using the above carbonation conditions coupled with regeneration in pure CO{sub 2} at 160 C. Fluidized-bed reactor tests of up to five cycles were conducted. Carbonation of sodium carbonate in these tests is initially very rapid and high degrees of removal are possible. The exothermic nature of the carbonation reaction resulted in a rise in bed temperature and subsequent decline in removal rate. Good temperature control, possibly through addition of supplemental water and evaporative cooling, appears to be the key to getting consistent carbon dioxide removal in a full-scale reactor system. The tendency of the alkali carbonate sorbents to cake on contact with liquid water complicates laboratory investigations as well as the design of larger scale systems. Also their low attrition resistance appears unsuitable for their use in dilute-phase transport reactor systems. Sodium and potassium carbonate have been incorporated in ceramic supports to obtain greater surface area and attrition resistance, using a laboratory spray dryer. The caking tendency is reduced and attrition resistance increased by supporting the sorbent. Supported sorbents with loading of up to 40 wt% sodium and potassium carbonate have been prepared and tested. These materials may improve the feasibility of large-scale CO{sub 2} capture systems based on short residence time dilute-phase transport reactor systems.

David A. Green; Brian S. Turk; Jeffrey W. Portzer; Raghubir P. Gupta; William J. McMichael; Thomas Nelson

2004-11-01T23:59:59.000Z

151

Carbon Dioxide Capture from Flue Gas Using Dry Regenerable Sorbents  

Science Conference Proceedings (OSTI)

Laboratory studies were conducted to investigate dry, regenerable, alkali carbonate-based sorbents for the capture of CO{sub 2} from power plant flue gas. Electrobalance, fixed-bed and fluid-bed reactors were used to examine both the CO{sub 2} capture and sorbent regeneration phases of the process. Sodium carbonate-based sorbents (calcined sodium bicarbonate and calcined trona) were the primary focus of the testing. Supported sodium carbonate and potassium carbonate sorbents were also tested. Sodium carbonate reacts with CO{sub 2} and water vapor contained in flue gas at temperatures between 60 and 80 C to form sodium bicarbonate, or an intermediate salt (Wegscheider's salt). Thermal regeneration of this sorbent produces an off-gas containing equal molar quantities of CO{sub 2} and H{sub 2}O. The low temperature range in which the carbonation reaction takes place is suited to treatment of coal-derived flue gases following wet flue gas desulfurization processes, but limits the concentration of water vapor which is an essential reactant in the carbonation reaction. Sorbent regeneration in an atmosphere of CO{sub 2} and water vapor can be carried out at a temperature of 160 C or higher. Pure CO{sub 2} suitable for use or sequestration is available after condensation of the H{sub 2}O. Flue gas contaminants such as SO{sub 2} react irreversibly with the sorbent so that upstream desulfurization will be required when sulfur-containing fossil fuels are used. Approximately 90% CO{sub 2} capture from a simulated flue gas was achieved during the early stages of fixed-bed reactor tests using a nominal carbonation temperature of 60 C. Effectively complete sorbent carbonation is possible when the fixed-bed test is carried out to completion. No decrease in sorbent activity was noted in a 15-cycle test using the above carbonation conditions coupled with regeneration in pure CO{sub 2} at 160 C. Fluidized-bed reactor tests of up to five cycles were conducted. Carbonation of sodium carbonate in these tests is initially very rapid and high degrees of removal are possible. The exothermic nature of the carbonation reaction resulted in a rise in bed temperature and subsequent decline in removal rate. Good temperature control, possibly through addition of supplemental water and evaporative cooling, appears to be the key to getting consistent carbon dioxide removal in a full-scale reactor system. The tendency of the alkali carbonate sorbents to cake on contact with liquid water complicates laboratory investigations as well as the design of larger scale systems. Also their low attrition resistance appears unsuitable for their use in dilute-phase transport reactor systems. Sodium and potassium carbonate have been incorporated in ceramic supports to obtain greater surface area and attrition resistance, using a laboratory spray dryer. The caking tendency is reduced and attrition resistance increased by supporting the sorbent. Supported sorbents with loading of up to 40 wt% sodium and potassium carbonate have been prepared and tested. These materials may improve the feasibility of large-scale CO{sub 2} capture systems based on short residence time dilute-phase transport reactor systems.

David A. Green; Brian S. Turk; Jeffrey W. Portzer; Raghubir P. Gupta; William J. McMichael; Thomas Nelson; Santosh Gangwal; Ya Liang; Tyler Moore; Margaret Williams; Douglas P. Harrison

2004-09-30T23:59:59.000Z

152

The impact of wet flue gas desulfurization scrubbing on mercury emissions from coal-fired power stations  

Science Conference Proceedings (OSTI)

The article introduces a predictive capability for mercury (Hg) retention in any Ca-based wet flue gas desulfurization (FGD) scrubber, given Hg speciation at the FGD inlet, the flue gas composition, and the sulphur dioxide (SO{sub 2}) capture efficiency. A preliminary statistical analysis of data from 17 full-scale wet FGDs connects flue gas compositions, the extents of Hg oxidation at FGD inlets, and Hg retention efficiencies. These connections show that solution chemistry within the FGD determines Hg retention. A more thorough analysis based on thermochemical equilibrium yields highly accurate predictions for total Hg retention with no parameter adjustments. For the most reliable data, the predictions were within measurement uncertainties for both limestone and Mg/lime systems operating in both forced and natural oxidation mode. With the U.S. Environmental Protection Agency's (EPA) Information Collection Request (ICR) database, the quantitative performance was almost as good for the most modern FGDs, which probably conform to the very high SO{sub 2} absorption efficiencies assumed in the calculations. The large discrepancies for older FGDs are tentatively attributed to the unspecified SO{sub 2} capture efficiencies and operating temperatures and to the possible elimination of HCl in prescrubbers. The equilibrium calculations suggest that Hg retention is most sensitive to inlet HCl and O{sub 2} levels and the FGD temperature; weakly dependent on SO{sub 2} capture efficiency; and insensitive to HgCl{sub 2}, NO, CA:S ratio, slurry dilution level in limestone FGDs, and MgSO{sub 3} levels in Mg/lime systems. Consequently, systems with prescrubbers to eliminate HCl probably retain less Hg than fully integrated FGDs. The analysis also predicts re-emission of Hg{sub 0} but only for inlet O{sub 2} levels that are much lower than those in full-scale FGDs. 12 refs., 5 figs., 3 tabs.

Stephen Niksa; Naoki Fujiwara [Niksa Energy Associates, Belmont, CA (US)

2005-07-01T23:59:59.000Z

153

Spray tower: the workhorse of flue-gas desulfurization  

Science Conference Proceedings (OSTI)

A recently developed spray tower system for use in a utility flue gas desulfurization system is simple, durable, and capable of achieving very high sulfur dioxide removal efficiencies, possibly approaching 100%. The principles behind the design and operation of the spray tower are discussed. The quality of water used for washing, tower size limitations, construction materials liquid distribution, gas-inlet design, gas distribution, mass transfer, and operating characteristics are examined. Procedures to maintain the reliability and high performance of the spray tower are described. (5 diagrams, 5 photos, 12 references, 1 table)

Saleem, A.

1980-10-01T23:59:59.000Z

154

Refuse Composition And flue-Gas Analyses from Mun;c;pal  

E-Print Network (OSTI)

(see Figure 3 and 4). In the fixed-bed or moving-bed process, the pollutant-loaded flue gases in the flue gases which occur during combustion and total approx. 350,000 m3(STP, dryt/hr is separatedReduction in Mercury Emissions with Lignite Coke W. Esser-Schmittmann, J. Wirling and U. Lenz Due

Columbia University

155

Flue Gas Conditioning Trial at Rochester Gas and Electric Russell Station  

Science Conference Proceedings (OSTI)

This report presents data and results of a full-scale evaluation of two flue gas conditioning agents considered as upgrades for the existing electrostatic precipitators (ESPs) at Rochester Gas and Electric's (RG&E) Russell Station. The flue gas additives evaluated were anhydrous ammonia and a proprietary chemical agent, ADA-23.

1999-04-06T23:59:59.000Z

156

CARBON DIOXIDE CAPTURE FROM FLUE GAS USING DRY REGENERABLE SORBENTS  

Science Conference Proceedings (OSTI)

This report describes research conducted between January 1, 2004 and March 31, 2004 on the use of dry regenerable sorbents for removal of carbon dioxide from flue gas. RTI has produced laboratory scale batches (approximately 300 grams) of supported sorbents (composed of 20 to 40% sodium carbonate) with high surface area and acceptable activity. Initial rates of weight gain of the supported sorbents when exposed to a simulated flue gas exceeded that of 100% calcined sodium bicarbonate. One of these sorbents was tested through six cycles of carbonation/calcination by thermogravimetric analysis and found to have consistent carbonation activity. Kinetic modeling of the regeneration cycle on the basis of diffusion resistance at the particle surface is impractical, because the evolving gases have an identical composition to those assumed for the bulk fluidization gas. A kinetic model of the reaction has been developed on the basis of bulk motion of water and carbon dioxide at the particle surface (as opposed to control by gas diffusion). The model will be used to define the operating conditions in future laboratory- and pilot-scale testing.

David A. Green; Brian S. Turk; Jeffrey W. Portzer; Raghubir P. Gupta; William J. McMichael; Thomas Nelson

2004-04-01T23:59:59.000Z

157

Thief process for the removal of mercury from flue gas  

DOE Patents (OSTI)

A system and method for removing mercury from the flue gas of a coal-fired power plant is described. Mercury removal is by adsorption onto a thermally activated sorbent produced in-situ at the power plant. To obtain the thermally activated sorbent, a lance (thief) is inserted into a location within the combustion zone of the combustion chamber and extracts a mixture of semi-combusted coal and gas. The semi-combusted coal has adsorptive properties suitable for the removal of elemental and oxidized mercury. The mixture of semi-combusted coal and gas is separated into a stream of gas and semi-combusted coal that has been converted to a stream of thermally activated sorbent. The separated stream of gas is recycled to the combustion chamber. The thermally activated sorbent is injected into the duct work of the power plant at a location downstream from the exit port of the combustion chamber. Mercury within the flue gas contacts and adsorbs onto the thermally activated sorbent. The sorbent-mercury combination is removed from the plant by a particulate collection system.

Pennline, Henry W. (Bethel Park, PA); Granite, Evan J. (Wexford, PA); Freeman, Mark C. (South Park Township, PA); Hargis, Richard A. (Canonsburg, PA); O' Dowd, William J. (Charleroi, PA)

2003-02-18T23:59:59.000Z

158

Recovery of CO/sub 2/ from flue gas  

SciTech Connect

Within the Permian Basin geographic region, there are a variety of sources for CO/sub 2/ other than naturally occurring deposits. These sources can provide sufficient quantities of CO/sub 2/ for enhanced oil recovery (EOR) projects. The cost associated with pipelining CO/sub 2/ produced from natural sources into the Permian Basin is reported to be $1.50/MSCF or less. Therefore, flue gas sources result in higher CO/sub 2/ costs than natural deposits. However, these costs are within the pricing parameters for the normal CO/sub 2/ market place. The demand for flue gas CO/sub 2/ for EOR is seen to depend largely on the success of CO/sub 2/ floods and the relative price that can be applied to CO/sub 2/ based on the price of oil and the increases in domestic oil production and gas liquids that CO/sub 2/ can provide. Under current conditions, CO/sub 2/ has a value of ca $2.00/MSCF for EOR use.

Hyde, E.P.

1983-01-01T23:59:59.000Z

159

Oxy-fuel combustion with integrated pollution control  

SciTech Connect

An oxygen fueled integrated pollutant removal and combustion system includes a combustion system and an integrated pollutant removal system. The combustion system includes a furnace having at least one burner that is configured to substantially prevent the introduction of air. An oxygen supply supplies oxygen at a predetermine purity greater than 21 percent and a carbon based fuel supply supplies a carbon based fuel. Oxygen and fuel are fed into the furnace in controlled proportion to each other and combustion is controlled to produce a flame temperature in excess of 3000 degrees F. and a flue gas stream containing CO2 and other gases. The flue gas stream is substantially void of non-fuel borne nitrogen containing combustion produced gaseous compounds. The integrated pollutant removal system includes at least one direct contact heat exchanger for bringing the flue gas into intimated contact with a cooling liquid to produce a pollutant-laden liquid stream and a stripped flue gas stream and at least one compressor for receiving and compressing the stripped flue gas stream.

Patrick, Brian R. (Chicago, IL); Ochs, Thomas Lilburn (Albany, OR); Summers, Cathy Ann (Albany, OR); Oryshchyn, Danylo B. (Philomath, OR); Turner, Paul Chandler (Independence, OR)

2012-01-03T23:59:59.000Z

160

Use of sulfide-containing liquors for removing mercury from flue gases  

DOE Patents (OSTI)

A method and apparatus for reducing and removing mercury in industrial gases, such as a flue gas, produced by the combustion of fossil fuels, such as coal, adds sulfide ions to the flue gas as it passes through a scrubber. Ideally, the source of these sulfide ions may include at least one of: sulfidic waste water, kraft caustic liquor, kraft carbonate liquor, potassium sulfide, sodium sulfide, and thioacetamide. The sulfide ion source is introduced into the scrubbing liquor as an aqueous sulfide species. The scrubber may be either a wet or dry scrubber for flue gas desulfurization systems.

Nolan, Paul S. (North Canton, OH); Downs, William (Alliance, OH); Bailey, Ralph T. (Uniontown, OH); Vecci, Stanley J. (Alliance, OH)

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

CO2 Separation from Low-Temperature Flue Gases  

NLE Websites -- All DOE Office Websites (Extended Search)

partners interested in implementing United States Patent Number 7,842,126 entitled "Co 2 Separation from Low-Temperature Flue Gases." Disclosed in this patent are novel methods for processing carbon dioxide (CO 2 ) from combustion gas streams. Researchers at NETL are focused on the development of novel sorbent systems that can effectively remove CO 2 and other gases in an economically feasible manner with limited impact on energy production cost. The current invention will help in reducing greenhouse gas emissions by using an improved, regenerable aqueous amine and soluble potassium carbonate sorbent system. This novel solvent system may be capable of achieving CO 2 capture from larger emission streams at lower overall cost. Overview Sequestration of CO

162

Biomimetric Membrane for CO2 Capture from Flue Gas  

NLE Websites -- All DOE Office Websites (Extended Search)

Biomimetic memBrane for co Biomimetic memBrane for co 2 capture from flue Gas Background Carbon Capture and Sequestration (CCS) is a three-step process including capture, pipeline transport and geologic storage of which the capture of carbon dioxide (CO 2 ) is the most costly and technically challenging. Current available methods impose significant energy burdens that severely impact their overall effectiveness as a significant deployment option. Of the available capture technologies for post combustion applications - absorption, adsorption, reaction and membranes chemically facilitated absorption promises to be the most cost-effective membrane solution for post combustion application. The Carbozyme technology extracts CO 2 from low concentration, low pressure sources by means of chemical facilitation of a polymer membrane. The chemical

163

Advanced Flue Gas Desulfurization (AFGD) Demonstration Project, A DOE Assessment  

NLE Websites -- All DOE Office Websites (Extended Search)

8 8 Advanced Flue Gas Desulfurization (AFGD) Demonstration Project A DOE Assessment August 2001 U.S. Department of Energy National Energy Technology Laboratory P.O. Box 880, 3610 Collins Ferry Road Morgantown, WV 26507-0880 and P.O. Box 10940, 626 Cochrans Mill Road Pittsburgh, PA 15236-0940 website: www.netl.doe.gov 2 Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference

164

Carbon Dioxide Capture from Flue Gas Using Dry Regenerable Sorbents  

SciTech Connect

Regenerable sorbents based on sodium carbonate (Na{sub 2}CO{sub 3}) can be used to separate carbon dioxide (CO{sub 2}) from coal-fired power plant flue gas. Upon thermal regeneration and condensation of water vapor, CO{sub 2} is released in a concentrated form that is suitable for reuse or sequestration. During the research project described in this report, the technical feasibility and economic viability of a thermal-swing CO{sub 2} separation process based on dry, regenerable, carbonate sorbents was confirmed. This process was designated as RTI's Dry Carbonate Process. RTI tested the Dry Carbonate Process through various research phases including thermogravimetric analysis (TGA); bench-scale fixed-bed, bench-scale fluidized-bed, bench-scale co-current downflow reactor testing; pilot-scale entrained-bed testing; and bench-scale demonstration testing with actual coal-fired flue gas. All phases of testing showed the feasibility of the process to capture greater than 90% of the CO{sub 2} present in coal-fired flue gas. Attrition-resistant sorbents were developed, and these sorbents were found to retain their CO{sub 2} removal activity through multiple cycles of adsorption and regeneration. The sodium carbonate-based sorbents developed by RTI react with CO{sub 2} and water vapor at temperatures below 80 C to form sodium bicarbonate (NaHCO3) and/or Wegscheider's salt. This reaction is reversed at temperatures greater than 120 C to release an equimolar mixture of CO{sub 2} and water vapor. After condensation of the water, a pure CO{sub 2} stream can be obtained. TGA testing showed that the Na{sub 2}CO3 sorbents react irreversibly with sulfur dioxide (SO{sub 2}) and hydrogen chloride (HCl) (at the operating conditions for this process). Trace levels of these contaminants are expected to be present in desulfurized flue gas. The sorbents did not collect detectable quantities of mercury (Hg). A process was designed for the Na{sub 2}CO{sub 3}-based sorbent that includes a co-current downflow reactor system for adsorption of CO{sub 2} and a steam-heated, hollow-screw conveyor system for regeneration of the sorbent and release of a concentrated CO{sub 2} gas stream. An economic analysis of this process (based on the U.S. Department of Energy's National Energy Technology Laboratory's [DOE/NETL's] 'Carbon Capture and Sequestration Systems Analysis Guidelines') was carried out. RTI's economic analyses indicate that installation of the Dry Carbonate Process in a 500 MW{sub e} (nominal) power plant could achieve 90% CO{sub 2} removal with an incremental capital cost of about $69 million and an increase in the cost of electricity (COE) of about 1.95 cents per kWh. This represents an increase of roughly 35.4% in the estimated COE - which compares very favorable versus MEA's COE increase of 58%. Both the incremental capital cost and the incremental COE were projected to be less than the comparable costs for an equally efficient CO{sub 2} removal system based on monoethanolamine (MEA).

Thomas Nelson; David Green; Paul Box; Raghubir Gupta; Gennar Henningsen

2007-06-30T23:59:59.000Z

165

The durability of stabilized flue gas desulfurization sludge  

Science Conference Proceedings (OSTI)

The effects of freeze-thaw cycling on the strength and durability of samples of compacted, stabilized, wet flue gas desulfurization (FGD) by-products are reported. The results of laboratory tests show a clear relationship between higher water contents and increasing vulnerability to freeze-thaw effects. In the samples tested, water contents at or above 40% were characteristic of all the freeze-thaw specimens exhibiting low strengths. Lime content and curing time were also shown to have a marked influence on the durability of the FGD material. It was shown that samples can maintain good strength under freeze-thaw conditions provided 5% lime was added before compaction and the time from compaction to first freeze was at least 60 days.

Chen, X.; Wolfe, W.E.; Hargraves, M.D.

1995-12-31T23:59:59.000Z

166

CARBON DIOXIDE CAPTURE FROM FLUE GAS USING DRY REGENERABLE SORBENTS  

SciTech Connect

This report describes research conducted between April 1, 2004 and June 30, 2004 on the preparation and use of dry regenerable sorbents for removal of carbon dioxide from flue gas. Support materials and supported sorbents were prepared by spray drying. Sorbents consisting of 20 to 50% sodium carbonate on a ceramic support were prepared by spray drying in batches of approximately 300 grams. The supported sorbents exhibited greater carbon dioxide capture rates than unsupported calcined sodium bicarbonate in laboratory tests. Preliminary process design and cost estimation for a retrofit application suggested that costs of a dry regenerable sodium carbonate-based process could be lower than those of a monoethanolamine absorption system. In both cases, the greatest part of the process costs come from power plant output reductions due to parasitic consumption of steam for recovery of carbon dioxide from the capture medium.

David A. Green; Brian S. Turk; Jeffrey W. Portzer; Raghubir P. Gupta; William J. McMichael; Thomas Nelson

2004-07-01T23:59:59.000Z

167

CARBON DIOXIDE CAPTURE FROM FLUE GAS USING DRY REGENERABLE SORBENTS  

SciTech Connect

Electrobalance studies of calcination and carbonation of sodium bicarbonate materials were conducted at Louisiana State University. Calcination in an inert atmosphere was rapid and complete at 120 C. Carbonation was temperature dependent, and both the initial rate and the extent of reaction were found to decrease as temperature was increased between 60 and 80 C. A fluidization test apparatus was constructed at RTI and two sodium bicarbonate materials were fluidized in dry nitrogen at 22 C. The bed was completely fluidized at between 9 and 11 in. of water pressure drop. Kinetic rate expression derivations and thermodynamic calculations were conducted at RTI. Based on literature data, a simple reaction rate expression, which is zero order in carbon dioxide and water, was found to provide the best fit against reciprocal temperature. Simulations based on process thermodynamics suggested that approximately 26 percent of the carbon dioxide in flue gas could be recovered using waste heat available at 240 C.

David A. Green; Brian S. Turk; Raghubir P. Gupta; Alejandro Lopez-Ortiz; Douglas P. Harrison; Ya Liang

2001-05-01T23:59:59.000Z

168

CARBON DIOXIDE CAPTURE FROM FLUE GAS USING DRY REGENERABLE SORBENTS  

SciTech Connect

Fossil fuels used for power generation, transportation, and by industry are the primary source of anthropogenic CO{sub 2} emissions to the atmosphere. Much of the CO{sub 2} emission reduction effort will focus on large point sources, with fossil fuel fired power plants being a prime target. The CO{sub 2} content of power plant flue gas varies from 4% to 9% (vol), depending on the type of fossil fuel used and on operating conditions. Although new power generation concepts that may result in CO{sub 2} control with minimal economic penalty are under development, these concepts are not generally applicable to the large number of existing power plants.

David A. Green; Brian S. Turk; Jeffrey W. Portzer; Raghubir P. Gupta; William J. McMichael; Ya Liang; Douglas P. Harrison

2002-07-01T23:59:59.000Z

169

CARBON DIOXIDE CAPTURE FROM FLUE GAS USING DRY REGENERABLE SORBENTS  

Science Conference Proceedings (OSTI)

Four grades of sodium bicarbonate and two grades of trona were characterized in terms of particle size distribution, surface area, pore size distribution, and attrition. Surface area and pore size distribution determinations were conducted after calcination of the materials. The sorbent materials were subjected to thermogravimetric testing to determine comparative rates and extent of calcination (in inert gas) and sorption (in a simulated coal combustion flue gas mixture). Selected materials were exposed to five calcination/sorption cycles and showed no decrease in either sorption capacity or sorption rate. Process simulations were conducted involving different heat recovery schemes. The process is thermodynamically feasible. The sodium-based materials appear to have suitable physical properties for use as regenerable sorbents and, based on thermogravimetric testing, are likely to have sorption and calcination rates that are rapid enough to be of interest in full-scale carbon sequestration processes.

David A. Green; Brian S. Turk; Raghubir Gupta; Alejandro Lopez-Ortiz

2001-01-01T23:59:59.000Z

170

Supported polyethylenimine adsorbents for CO2 capture from flue gas  

Science Conference Proceedings (OSTI)

Anthropogenic CO2 emissions produced from fossil fuel combustion are believed to contribute to undesired consequences in global climate. Major contributors towards CO2 emissions are fossil fuel-fired power plants for electricity production. For this reason, CO2 capture from flue gas streams together with permanent sequestration in geologic formations is being considered a viable solution towards mitigation of the major greenhouse gas1. Technologies based on chemical absorption with alkanolamines have been assessed for first generation CO2 post-combustion capture primarily due to its advanced stage of development. However, limitations associated with these chemical solvents (i.e., low CO2 loadings, amine degradation by oxygen, equipment corrosion) manifest themselves in high capital and operating costs with reduced thermal efficiencies. Therefore, necessary design and development of alternative, lower cost approaches for CO2 capture from coal-fired combustion streams are warranted.

Fauth, D.J.; Gray, M.L.; Pennline, H.W.

2008-10-01T23:59:59.000Z

171

Load Preheating Using Flue Gases from a Fuel-Fired Heating System  

Science Conference Proceedings (OSTI)

This DOE Industrial Technologies Program tip sheet describes how to save energy and costs by using the heat in furnace flue gases to preheat material coming into the furnace to improve combustion.

Not Available

2006-01-01T23:59:59.000Z

172

NETL: CO2 Capture from Flue Gas Using Solid Molecular Basket...  

NLE Websites -- All DOE Office Websites (Extended Search)

molecular basket sorbent for CO2 capture from flue gas. Energy Fuels 2011, 25, 456-458. XX Wang, SQ Zhao, XL Ma, CS Song, CO2 capture from gas streams with low CO2...

173

natural gas+ condensing flue gas heat recovery+ water creation+ CO2  

Open Energy Info (EERE)

natural gas+ condensing flue gas heat recovery+ water creation+ CO2 natural gas+ condensing flue gas heat recovery+ water creation+ CO2 reduction+ cool exhaust gases+ Energy efficiency+ commercial building energy efficiency+ industrial energy efficiency+ power plant energy efficiency+ Home Increase Natural Gas Energy Efficiency Description: Increased natural gas energy efficiency = Reduced utility bills = Profit In 2011 the EIA reports that commercial buildings, industry and the power plants consumed approx. 17.5 Trillion cu.ft. of natural gas. How much of that energy was wasted, blown up chimneys across the country as HOT exhaust into the atmosphere? 40% ~ 60% ? At what temperature? Links: The technology of Condensing Flue Gas Heat Recovery natural gas+ condensing flue gas heat recovery+ water creation+ CO2 reduction+ cool exhaust gases+ Energy efficiency+ commercial building

174

Membrane Process to Sequester CO2 from Power Plant Flue Gas  

NLE Websites -- All DOE Office Websites (Extended Search)

MeMbrane Process to sequester co MeMbrane Process to sequester co 2 froM Power Plant flue Gas Background Carbon dioxide emissions from coal-fired power plants are believed to contribute significantly to global warming climate change. The direct approach to address this problem is to capture the carbon dioxide in flue gas and sequester it underground. However, the high cost of separating and capturing CO 2 with conventional technologies prevents the adoption of this approach. This project investigates the technical and economic feasibility of a new membrane process to capture CO 2 from power plant flue gas. Description Direct CO 2 capture from power plant flue gas has been the subject of many studies. Currently, CO 2 capture with amine absorption seems to be the leading candidate technology-although membrane processes have been suggested. The principal

175

Flue gas desulfurization : cost and functional analysis of large-scale and proven plants  

E-Print Network (OSTI)

Flue Gas Desulfurization is a method of controlling the emission of sulfurs, which causes the acid rain. The following study is based on 26 utilities which burn coal, have a generating capacity of at least 50 Megawatts ...

Tilly, Jean

1983-01-01T23:59:59.000Z

176

Evaluating energy dissipation during expansion in a refrigeration cycle using flue pipe acoustic resonators  

E-Print Network (OSTI)

This research evaluates the feasibility of using a flue pipe acoustic resonator to dissipate energy from a refrigerant stream in order to achieve greater cooling power from a cryorefrigeration cycle. Two models of the ...

Luckyanova, Maria N. (Maria Nickolayevna)

2008-01-01T23:59:59.000Z

177

Enhanced Elemental Mercury Removal from Coal-fired Flue Gas by Sulfur-chlorine Compounds  

E-Print Network (OSTI)

removal from flue gas of coal-fired power plants. Environ.Speciation in a 100-MW Coal-Fired Boiler with Low-NOxControl Technologies for Coal-Fired Power Plants, DOE/NETL

Miller, Nai-Qiang Yan-Zan Qu Yao Chi Shao-Hua Qiao Ray Dod Shih-Ger Chang Charles

2008-01-01T23:59:59.000Z

178

Heat exchanger design for thermoelectric electricity generation from low temperature flue gas streams  

E-Print Network (OSTI)

An air-to-oil heat exchanger was modeled and optimized for use in a system utilizing a thermoelectric generator to convert low grade waste heat in flue gas streams to electricity. The NTU-effectiveness method, exergy, and ...

Latcham, Jacob G. (Jacob Greco)

2009-01-01T23:59:59.000Z

179

Enhanced Elemental Mercury Removal from Coal-fired Flue Gas by Sulfur-chlorine Compounds  

E-Print Network (OSTI)

from flue gas of coal-fired power plants. Environ. Sci. &Technologies for Coal-Fired Power Plants, DOE/NETL Mercurynumber of coal-fired generating plants (1-3). The mercury is

Miller, Nai-Qiang Yan-Zan Qu Yao Chi Shao-Hua Qiao Ray Dod Shih-Ger Chang Charles

2008-01-01T23:59:59.000Z

180

pH Adjustment of Power Plant Cooling Water with Flue Gas/Fly Ash  

to fossil fuel burning power plants to control mineral precipitation in cooling water. Flue gas, which is 10% CO2, could be diverted into a plants cooling water

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

CO2 Removal from Flue Gas Using MIcroporous Metal Organic Frameworks  

NLE Websites -- All DOE Office Websites (Extended Search)

Removal from Flue Gas Using Removal from Flue Gas Using Microporous Metal Organic Frameworks Background The mission of the U.S. Department of Energy's (DOE) Existing Plants, Emissions, & Capture (EPEC) Research & Development (R&D) Program is to develop innovative environmental control technologies to enable full use of the nation's vast coal reserves, while at the same time allowing the current fleet of coal-fired power plants to comply with existing and emerging environmental regulations. The EPEC R&D

182

CO2 Capture from Flue Gas Using SOlid Molecular Basket Sorbents  

NLE Websites -- All DOE Office Websites (Extended Search)

from Flue Gas Using Solid from Flue Gas Using Solid Molecular Basket Sorbents Background The mission of the U.S. Department of Energy/National Energy Technology Laboratory (DOE/NETL) Existing Plants, Emissions & Capture (EPEC) Research & Development (R&D) Program is to develop innovative environmental control technologies to enable full use of the nation's vast coal reserves, while at the same time allowing the current fleet of coal-

183

Noble Metal Catalysts for Mercury Oxidation in Utility Flue Gas: Gold, Palladium and Platinum Formulations  

Science Conference Proceedings (OSTI)

The use of noble metals as catalysts for mercury oxidation in flue gas remains an area of active study. To date, field studies have focused on gold and palladium catalysts installed at pilot scale. In this article, we introduce bench-scale experimental results for gold, palladium and platinum catalysts tested in realistic simulated flue gas. Our initial results reveal some intriguing characteristics of catalytic mercury oxidation and provide insight for future research into this potentially important process.

Presto, A.A.; Granite, E.J

2008-07-01T23:59:59.000Z

184

Flue Gas Desulfurization Gypsum Agricultural Network: Indiana Kingman Research Station (Corn and Soybeans)  

Science Conference Proceedings (OSTI)

Flue gas desulfurization gypsum (FGDG) is an excellent source of gypsum (CaSO42H2O) that is created when sulfur dioxide is removed from the exhaust gases during the combustion of coal for energy production. Research on FGDG has been conducted as part of the Flue Gas Desulfurization Gypsum Agricultural Network program sponsored by the Electric Power Research Institute in collaboration with individual utilities, the U.S. EPA, the United States Department of Agricultures Agricultural ...

2013-10-07T23:59:59.000Z

185

Enhanced Control of Mercury by Wet Flue Gas Desulfurization Systems - Site 3 Topical Report  

Science Conference Proceedings (OSTI)

Researchers conducted field tests to evaluate the ability of a variety of materials to oxidize vapor-phase elemental mercury at a coal-fired power plant equipped with a wet flue gas desulfurization (FGD) system. Results, while confounded by measurement difficulties, showed that under bituminous coal flue gas conditions, two catalysts, Pd #1 and Carbon #6, continued to oxidize at least 85 percent of the inlet elemental mercury after three months.

2002-02-06T23:59:59.000Z

186

Flue Gas Sulfuric Acid Measurement Method Improvements: Second Interim Report, December 2000  

Science Conference Proceedings (OSTI)

The objective of this project is to improve the ability of electric utilities with coal and oil-fired power plants to measure and report sulfuric emissions. Most coal and oil-fired utility boilers will trigger Toxic Release Inventory (TRI) reporting for sulfuric acid. The Controlled Condensation System (CCS) method for measuring flue gas sulfuric acid concentrations is believed to provide one of the best methods for measuring sulfuric acid in flue gas. However, there are situations where the CCS method m...

2000-12-05T23:59:59.000Z

187

A Review of Manufacturing Uses for Gypsum Produced by Flue Gas Desulfurization Systems  

Science Conference Proceedings (OSTI)

Gypsum is widely used as a source material to manufacture products for building construction applications8212primarily wallboard, cement, and concrete8212and has a number of other commercial applications. The mineral is mined throughout the world (natural gypsum) and also is produced as a result of various industrial processes (synthetic gypsum). The largest source of synthetic gypsum used for manufacturing applications is flue gas desulfurization (FGD) gypsum, the product of wet flue gas desulfurization...

2006-03-07T23:59:59.000Z

188

Evaluation of the NeuStream-S Flue Gas Desulfurization Process  

Science Conference Proceedings (OSTI)

Harris Group Inc. (HGI) of Denver, Colorado, was contracted by the Electric Power Research Institute (EPRI) to monitor, evaluate, and prepare this report on a dual-alkali flue gas desulfurization (FGD) process developed by Neumann Systems Group, Inc. (NSG). The process is being demonstrated in a nominal 20-MW demonstration plant, treating a slip stream of flue gas from the Colorado Springs Utilities 142-MW Drake Unit 7. HGI evaluated performance, operability, and readiness for scale-up of the process. Co...

2011-05-31T23:59:59.000Z

189

Biomimetic Membrane for CO2 Capture from Flue Gas  

SciTech Connect

These Phase III experiments successfully addressed several issues needed to characterize a permeator system for application to a pulverized coal (PC) burning furnace/boiler assuming typical post-combustion cleanup devices in place. We completed key laboratory stage optimization and modeling efforts needed to move towards larger scale testing. The SOPO addressed six areas. Task 1--Post-Combustion Particle Cleanup--The first object was to determine if the Carbozyme permeator performance was likely to be reduced by particles (materials) in the flue gas stream that would either obstruct the mouth of the hollow fibers (HF) or stick to the HF bore wall surface. The second, based on the Acceptance Standards (see below), was to determine whether it would be preferable to clean the inlet gas stream (removing acid gases and particulates) or to develop methods to clean the Carbozyme permeator if performance declined due to HF block. We concluded that condensation of particle and particulate emissions, in the heat exchanger, could result in the formation of very sticky sulfate aerosols with a strong likelihood of obtruding the HF. These must be managed carefully and minimized to near-zero status before entering the permeator inlet stream. More extensive post-combustion cleanup is expected to be a necessary expense, independent of CO{sub 2} capture technology This finding is in agreement with views now emerging in the literature for a variety of CO{sub 2} capture methods. Task 2--Water Condensation--The key goal was to monitor and control temperature distributions within the permeator and between the permeator and its surroundings to determine whether water condensation in the pores or the HF bore would block flow, decreasing performance. A heat transfer fluid and delivery system were developed and employed. The result was near isothermal performance that avoided all instances of flow block. Direct thermocouple measurements provided the basis for developing a heat transfer model that supports prediction of heat transfer profiles for larger permeators Tasks 3. 4.1, 4.2--Temperature Range of Enzymes--The goal was to determine if the enzyme operating temperature would limit the range of thermal conditions available to the capture system. We demonstrated the ability of various isozymes (enzyme variants) to operate from 4-85 C. Consequently, the operating characteristics of the enzyme are not a controlling factor. Further, any isozyme whose upper temperature bound is at least 10 C greater than that of the planned inlet temperature will be stable under unanticipated, uncontrolled 'hiccups' in power plant operation. Task 4.4, 4.4--Examination of the Effects of SOx and NOx on Enzyme Activity (Development of Flue Gas Composition Acceptance Standards)--The purpose was to define the inlet gas profile boundaries. We examined the potential adverse effects of flue gas constituents including different acids from to develop an acceptance standard and compared these values to actual PC flue gas composition. Potential issues include changes in pH, accumulation of specific inhibitory anions and cations. A model was developed and validated by test with a SO{sub 2}-laden stream. The predicted and actual data very largely coincided. The model predicted feed stream requirements to allow continuous operation in excess of 2500 hours. We developed operational (physical and chemical) strategies to avoid or ameliorate these effects. Avoidance, the preferred strategy (noted above), is accomplished by more extensive cleanup of the flue gas stream. Task 5--Process Engineering Model--We developed a process-engineering model for two purposes. The first was to predict the physical and chemical status at each test point in the design as a basis for scale-up. The second was to model the capital and operating cost of the apparatus. These were accomplished and used to predict capex, opex and cost of energy. Task 6--Preliminary Commercialization Plan--We carried out analyses of the market and the competition by a variety of parameters. The conclusion was that there is a l

Michael C. Trachtenberg

2007-05-31T23:59:59.000Z

190

Method for removing heavy metal and nitrogen oxides from flue gas, device for removing heavy metal and nitrogen oxides from flue gas  

DOE Patents (OSTI)

A method for the simultaneous removal of oxides and heavy metals from a fluid is provided comprising combining the fluid with compounds containing alkali and sulfur to create a mixture; spray drying the mixture to create a vapor phase and a solid phase; and isolating the vapor phase from the solid phase. A device is also provided comprising a means for spray-drying flue gas with alkali-sulfide containing liquor at a temperature sufficient to cause the flue gas to react with the compounds so as to create a gaseous fraction and a solid fraction and a means for directing the gaseous fraction to a fabric filter.

Huang, Hann-Sheng; Livengood, Charles David

1997-12-01T23:59:59.000Z

191

Production of manufactured aggregates from flue gas desulfurization by-products  

SciTech Connect

CONSOL R and D has developed a disk pelletization process to produce manufactured aggregates from the by-products of various technologies designed to reduce sulfur emissions produced from coal utilization. Aggregates have been produced from the by-products of the Coolside and LIMB sorbent injection, the fluidized-bed combustion (FBC), spray dryer absorption (SDA), and lime and limestone wet flue gas desulfurization (FGD) processes. The aggregates produced meet the general specifications for use as road aggregate in road construction and for use as lightweight aggregate in concrete masonry units. Small field demonstrations with 1200 lb to 5000 lb of manufactured aggregates were conducted using aggregates produced from FBC ash and lime wet FGD sludge in road construction and using aggregates made from SDA ash and lime wet FGD sludge to manufacture concrete blocks. The aggregates for this work were produced with a bench-scale (200--400 lb batch) unit. In 1999, CONSOL R and D constructed and operated a 500 lb/hr integrated, continuous pilot plant. A variety of aggregate products were produced from lime wet FGD sludge. The pilot plant test successfully demonstrated the continuous, integrated operation of the process. The pilot plant demonstration was a major step toward commercialization of manufactured aggregate production from FGD by-products. In this paper, progress made in the production of aggregates from dry FGD (Coolside, LIMB, SDA) and FBC by-products, and lime wet FGD sludge is discussed. The discussion covers bench-scale and pilot plant aggregate production and aggregate field demonstrations.

Wu, M.M.; McCoy, D.C.; Fenger, M.L.; Scandrol, R.O.; Winschel, R.A.; Withum, J.A.; Statnick, R.M.

1999-07-01T23:59:59.000Z

192

Economic assessment of advanced flue gas desulfurization processes. Final report  

Science Conference Proceedings (OSTI)

This report presents the results of a project sponsored by the Morgantown Energy Technology Center (METC). The purpose of the study was to perform an economic and market assessment of advanced flue gas desulfurization (FGD) processes for application to coal-fired electric utility plants. The time period considered in the study is 1981 through 1990, and costs are reported in 1980 dollars. The task was divided into the following four subtasks: (1) determine the factors affecting FGD cost evaluations; (2) select FGD processes to be cost-analyzed; (3) define the future electric utility FGD system market; and (4) perform cost analyses for the selected FGD processes. The study was initiated in September 1979, and separate reports were prepared for the first two subtasks. The results of the latter two subtasks appear only in this final reprot, since the end-date of those subtasks coincided with the end-date of the overall task. The Subtask 1 report, Criteria and Methods for Performing FGD Cost Evaluations, was completed in October 1980. A slightly modified and condensed version of that report appears as appendix B to this report. The Subtask 2 report, FGD Candidate Process Selection, was completed in January 1981, and the principal outputs of that subtask appear in Appendices C and D to this report.

Bierman, G. R.; May, E. H.; Mirabelli, R. E.; Pow, C. N.; Scardino, C.; Wan, E. I.

1981-09-01T23:59:59.000Z

193

Multi-component removal in flue gas by aqua ammonia  

DOE Patents (OSTI)

A new method for the removal of environmental compounds from gaseous streams, in particular, flue gas streams. The new method involves first oxidizing some or all of the acid anhydrides contained in the gas stream such as sulfur dioxide (SO.sub.2) and nitric oxide (NO) and nitrous oxide (N.sub.2O) to sulfur trioxide (SO.sub.3) and nitrogen dioxide (NO.sub.2). The gas stream is subsequently treated with aqua ammonia or ammonium hydroxide which captures the compounds via chemical absorption through acid-base or neutralization reactions. The products of the reactions can be collected as slurries, dewatered, and dried for use as fertilizers, or once the slurries have been dewatered, used directly as fertilizers. The ammonium hydroxide can be regenerated and recycled for use via thermal decomposition of ammonium bicarbonate, one of the products formed. There are alternative embodiments which entail stoichiometric scrubbing of nitrogen oxides and sulfur oxides with subsequent separate scrubbing of carbon dioxide.

Yeh, James T. (Bethel Park, PA); Pennline, Henry W. (Bethel Park, PA)

2007-08-14T23:59:59.000Z

194

CARBON DIOXIDE CAPTURE FROM FLUE GAS USING DRY REGENERABLE SORBENTS  

SciTech Connect

This report describes research conducted between April 1, 2003 and June 30, 2003 on the use of dry regenerable sorbents for concentration of carbon dioxide from flue gas. Grade 1 sodium bicarbonate performed similarly to grade 5 sodium bicarbonate in fixed bed testing in that activity improved after the first carbonation cycle and did not decline over the course of 5 cycles. Thermogravimetric analysis indicated that sodium bicarbonate sorbents produced by calcination of sodium bicarbonate are superior to either soda ash or calcined trona. Energy requirements for regeneration of carbon dioxide sorbents (either wet or dry) is of primary importance in establishing the economic feasibility of carbon dioxide capture processes. Recent studies of liquid amine sorption processes were reviewed and found to incorporate conflicting assumptions of energy requirements. Dry sodium based processes have the potential to be less energy intensive and thus less expensive than oxygen inhibited amine based systems. For dry supported sorbents, maximizing the active fraction of the sorbent is of primary importance in developing an economically feasible process.

David A. Green; Brian S. Turk; Jeffrey W. Portzer; Raghubir P. Gupta; William J. McMichael; Ya Liang; Tyler Moore; Douglas P. Harrison

2003-08-01T23:59:59.000Z

195

CARBON DIOXIDE CAPTURE FROM FLUE GAS USING DRY REGENERABLE SORBENTS  

Science Conference Proceedings (OSTI)

The objective of this project is to develop a simple and inexpensive process to separate CO{sub 2} as an essentially pure stream from a fossil fuel combustion system using a regenerable sorbent. The sorbents being investigated in this project are primarily alkali carbonates, and particularly sodium carbonate and potassium carbonate, which are converted to bicarbonates or intermediate salts through reaction with carbon dioxide and water vapor. Bicarbonates are regenerated to carbonates when heated, producing a nearly pure CO{sub 2} stream after condensation of water vapor. This quarter, electrobalance tests suggested that high calcination temperatures decrease the activity of sodium bicarbonate Grade 1 (SBC No.1) during subsequent carbonation cycles, but there is little or no progressive decrease in activity in successive cycles. SBC No.1 appears to be more active than SBC No.3. As expected, the presence of SO{sub 2} in simulated flue gas results in a progressive loss of sorbent capacity with increasing cycles. This is most likely due to an irreversible reaction to produce Na{sub 2}SO{sub 3}. This compound appears to be stable at calcination temperatures as high as 200 C. Tests of 40% supported potassium carbonate sorbent and plain support material suggest that some of the activity observed in tests of the supported sorbent may be due to adsorption by the support material rather than to carbonation of the sorbent.

David A. Green; Brian S. Turk; Jeffrey W. Portzer; Raghubir P. Gupta; William J. McMichael; Ya Liang; Douglas P. Harrison

2003-01-01T23:59:59.000Z

196

CO{sub 2} Capture Membrane Process for Power Plant Flue Gas  

Science Conference Proceedings (OSTI)

Because the fleet of coal-fired power plants is of such importance to the nation??s energy production while also being the single largest emitter of CO{sub 2}, the development of retrofit, post-combustion CO{sub 2} capture technologies for existing and new, upcoming coal power plants will allow coal to remain a major component of the U.S. energy mix while mitigating global warming. Post-combustion carbon capture technologies are an attractive option for coal-fired power plants as they do not require modification of major power-plant infrastructures, such as fuel processing, boiler, and steam-turbine subsystems. In this project, the overall objective was to develop an advanced, hollow-fiber, polymeric membrane process that could be cost-effectively retrofitted into current pulverized coal-fired power plants to capture at least 90% of the CO{sub 2} from plant flue gas with 95% captured CO{sub 2} purity. The approach for this project tackled the technology development on three different fronts in parallel: membrane materials R&D, hollow-fiber membrane module development, and process development and engineering. The project team consisted of RTI (prime) and two industrial partners, Arkema, Inc. and Generon IGS, Inc. Two CO{sub 2}-selective membrane polymer platforms were targeted for development in this project. For the near term, a next-generation, high-flux polycarbonate membrane platform was spun into hollow-fiber membranes that were fabricated into both lab-scale and larger prototype (~2,200 ft{sup 2}) membrane modules. For the long term, a new fluoropolymer membrane platform based on poly(vinylidene fluoride) [PVDF] chemistry was developed using a copolymer approach as improved capture membrane materials with superior chemical resistance to flue-gas contaminants (moisture, SO{sub 2}, NOx, etc.). Specific objectives were: ? Development of new, highly chemically resistant, fluorinated polymers as membrane materials with minimum selectivity of 30 for CO{sub 2} over N{sub 2} and CO{sub 2} permeance greater than 300 gas permeation units (GPU) targeted; ? Development of next-generation polycarbonate hollow-fiber membranes and membrane modules with higher CO{sub 2} permeance than current commercial polycarbonate membranes; ? Development and fabrication of membrane hollow fibers and modules from candidate polymers; ? Development of a CO{sub 2} capture membrane process design and integration strategy suitable for end-of-pipe, retrofit installation; and ? Techno-economic evaluation of the "best" integrated CO{sub 2} capture membrane process design package In this report, the results of the project research and development efforts are discussed and include the post-combustion capture properties of the two membrane material platforms and the hollow-fiber membrane modules developed from them and the multi-stage process design and analysis developed for 90% CO{sub 2} capture with 95% captured CO{sub 2} purity.

Lora Toy; Atish Kataria; Raghubir Gupta

2011-09-30T23:59:59.000Z

197

Analysis of Halogen-Mercury Reactions in Flue Gas  

SciTech Connect

Oxidized mercury species may be formed in combustion systems through gas-phase reactions between elemental mercury and halogens, such as chorine or bromine. This study examines how bromine species affect mercury oxidation in the gas phase and examines the effects of mixtures of bromine and chlorine on extents of oxidation. Experiments were conducted in a bench-scale, laminar flow, methane-fired (300 W), quartz-lined reactor in which gas composition (HCl, HBr, NO{sub x}, SO{sub 2}) and temperature profile were varied. In the experiments, the post-combustion gases were quenched from flame temperatures to about 350 C, and then speciated mercury was measured using a wet conditioning system and continuous emissions monitor (CEM). Supporting kinetic calculations were performed and compared with measured levels of oxidation. A significant portion of this report is devoted to sample conditioning as part of the mercury analysis system. In combustion systems with significant amounts of Br{sub 2} in the flue gas, the impinger solutions used to speciate mercury may be biased and care must be taken in interpreting mercury oxidation results. The stannous chloride solution used in the CEM conditioning system to convert all mercury to total mercury did not provide complete conversion of oxidized mercury to elemental, when bromine was added to the combustion system, resulting in a low bias for the total mercury measurement. The use of a hydroxylamine hydrochloride and sodium hydroxide solution instead of stannous chloride showed a significant improvement in the measurement of total mercury. Bromine was shown to be much more effective in the post-flame, homogeneous oxidation of mercury than chlorine, on an equivalent molar basis. Addition of NO to the flame (up to 400 ppmv) had no impact on mercury oxidation by chlorine or bromine. Addition of SO{sub 2} had no effect on mercury oxidation by chlorine at SO{sub 2} concentrations below about 400 ppmv; some increase in mercury oxidation was observed at SO{sub 2} concentrations of 400 ppmv and higher. In contrast, SO{sub 2} concentrations as low as 50 ppmv significantly reduced mercury oxidation by bromine, this reduction could be due to both gas and liquid phase interactions between SO{sub 2} and oxidized mercury species. The simultaneous presence of chlorine and bromine in the flue gas resulted in a slight increase in mercury oxidation above that obtained with bromine alone, the extent of the observed increase is proportional to the chlorine concentration. The results of this study can be used to understand the relative importance of gas-phase mercury oxidation by bromine and chlorine in combustion systems. Two temperature profiles were tested: a low quench (210 K/s) and a high quench (440 K/s). For chlorine the effects of quench rate were slight and hard to characterize with confidence. Oxidation with bromine proved sensitive to quench rate with significantly more oxidation at the lower rate. The data generated in this program are the first homogeneous laboratory-scale data on bromine-induced oxidation of mercury in a combustion system. Five Hg-Cl and three Hg-Br mechanisms, some published and others under development, were evaluated and compared to the new data. The Hg-halogen mechanisms were combined with submechanisms from Reaction Engineering International for NO{sub x}, SO{sub x}, and hydrocarbons. The homogeneous kinetics under-predicted the levels of mercury oxidation observed in full-scale systems. This shortcoming can be corrected by including heterogeneous kinetics in the model calculations.

Paula Buitrago; Geoffrey Silcox; Constance Senior; Brydger Van Otten

2010-01-01T23:59:59.000Z

198

CARBON DIOXIDE CAPTURE FROM FLUE GAS USING DRY REGENERABLE SORBENTS  

SciTech Connect

The objective of this project is to develop a simple, inexpensive process to separate CO{sub 2} as an essentially pure stream from a fossil fuel combustion system using a regenerable, sodium-based sorbent. The sorbents being investigated in this project are primarily alkali carbonates, and particularly sodium carbonate and potassium carbonate, which are converted to bicarbonates, through reaction with carbon dioxide and water vapor. Bicarbonates are regenerated to carbonates when heated, producing a nearly pure CO{sub 2} stream after condensation of water vapor. This quarter, electrobalance tests conducted at LSU indicated that exposure of sorbent to water vapor prior to contact with carbonation gas does not significantly increase the reaction rate. Calcined fine mesh trona has a greater initial carbonation rate than calcined sodium bicarbonate, but appears to be more susceptible to loss of reactivity under severe calcination conditions. The Davison attrition indices for Grade 5 sodium bicarbonate, commercial grade sodium carbonate and extra fine granular potassium carbonate were, as tested, outside of the range suitable for entrained bed reactor testing. Fluidized bed testing at RTI indicated that in the initial stages of reaction potassium carbonate removed 35% of the carbon dioxide in simulated flue gas, and is reactive at higher temperatures than sodium carbonate. Removals declined to 6% when 54% of the capacity of the sorbent was exhausted. Carbonation data from electrobalance testing was correlated using a shrinking core reaction model. The activation energy of the reaction of sodium carbonate with carbon dioxide and water vapor was determined from nonisothermal thermogravimetry.

David A. Green; Brian S. Turk; Raghubir P. Gupta; William J. McMichael; Douglas P. Harrison; Ya Liang

2002-04-01T23:59:59.000Z

199

PRODUCTION OF CONSTRUCTION AGGREGATES FROM FLUE GAS DESULFURIZATION SLUDGE  

SciTech Connect

Through a cooperative agreement with DOE, the Research and Development Department of CONSOL Inc. (CONSOL R and D) is teaming with SynAggs, Inc. and Duquesne Light to design, construct, and operate a 500 lb/h continuous pilot plant to produce road construction aggregate from a mixture of wet flue gas desulfurization (FGD) sludge, fly ash, and other components. The proposed project is divided into six tasks: (1) Project Management; (2) Mix Design Evaluation; (3) Process Design; (4) Construction; (5) Start-Up and Operation; and (6) Reporting. In this quarter, Tasks 1 and 2 were completed. A project management plan (Task 1) was issued to DOE on October 22, 1998 . The mix design evaluation (Task 2) with Duquesne Light Elrama Station FGD sludge and Allegheny Power Hatfields Ferry Station fly ash was completed. Eight semi-continuous bench-scale tests were conducted to examine the effects of mix formulation on aggregate properties. A suitable mix formulation was identified to produce aggregates that meet specifications of the American Association of State High Transport Officials (AASHTO) as Class A aggregate for use in highway construction. The mix formulation was used in designing the flow sheet of the pilot plant. The process design (Task 3) is approximately 80% completed. Equipment was evaluated to comply with design requirements. The design for the curing vessel was completed by an outside engineering firm. All major equipment items for the pilot plant, except the curing vessel, were ordered. Pilot plant construction (Task 4) was begun in October. The Hazardous Substance Plan was issued to DOE. The Allegheny County (PA) Heat Department determined that an air emission permit is not required for operation of the pilot plant.

1998-12-01T23:59:59.000Z

200

The Influence of Flue Gas Recirculation on the Formation of NOx in the Process of Coal Grate-Fired  

Science Conference Proceedings (OSTI)

With the improvement of environmental protection requirements, the problems of NOx emission from industrial boiler become more and more notable. To explore a real effective method of low NOx combustion, the article discusses the influence of flue gas ... Keywords: flue gas recirculation, grate-fired, temperature, Nox

Li Xu; Jianmin Gao; Guangbo Zhao; Laifu Zhao; Zhifeng Zhao; Shaohua Wu

2011-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

The Discussion of a New Exhausting Smoke Solution in Natural Draft Cooling Tower with Flue Gas Injection  

Science Conference Proceedings (OSTI)

First, the three-dimensional model of NDCT with flue gas injection and the boundary conditions was established by GAMBIT2.3 on the basis of structural parameter. On theFLUENT6.3 technology platform with self-designed program, it was found that: The new ... Keywords: NDCT with flue gas injection, jet mechanics numerical simulation, natural draft cooling towers

Yang Shuo; Qing-Jie Qi; Xin-Le Yang; Shi Lei; Chun-Yang Li

2011-02-01T23:59:59.000Z

202

The Fate of Mercury Absorbed in Flue Gas Desulfurization (FGD) Systems  

Science Conference Proceedings (OSTI)

Wet flue gas desulfurization (FGD) systems are known to remove a percentage of the mercury in coal flue gases. This raises several questions about the fate of mercury removed by wet FGD systems: Does the absorbed mercury stay in the FGD liquor or does it leave with the byproduct solids? What happens to mercury in the FGD liquor and solid byproducts when they leave the FGD system? To address such questions, this report describes results from an EPRI project that involves field sample collection and labora...

2005-03-24T23:59:59.000Z

203

EPRI Environmental Control Technology Center: FGD Wet Scrubber Performance At High Flue Gas Velocities  

Science Conference Proceedings (OSTI)

This report summarizes the impact of operating a wet flue gas desulfurization scrubber system at high flue gas velocities up to 20ft/sec (6.1 m/sec). It includes results for countercurrent spray, tray, and packing designs a variety of nozzle types. The report also describes the effect of adding dibasic acid and the impact of operation of state-of-the-art mist elimination systems. These results will be useful for planning compliance with SO2 emission regulations whether a new system is planned or addition...

1997-01-28T23:59:59.000Z

204

Critical review of mercury chemistry in flue gas.  

SciTech Connect

Mercury (Hg) and its compounds have long been recognized as potentially hazardous to human health and the environment. Many man-made sources of mercury have been reduced in recent years through process changes and control measures. However, emissions of mercury from coal-fired power plants, while exceedingly dilute by the usual pollution standards, still constitute a major source when considered in the aggregate. Concerns over those emissions and the prospect of impending emissions regulations have led to a wide range of research projects dealing with the measurement and control of mercury in flue gas. This work has made considerable progress in improving the understanding of mercury emissions and their behavior, but inconsistencies and unexpected results have also shown that a better understanding of mercury chemistry is needed. To develop a more complete understanding of where additional research on mercury chemistry is needed, the U.S. Department of Energy (DOE) asked Argonne National Laboratory (Argonne) to conduct a critical review of the available information as reported in the technical literature. The objectives were to summarize the current state of the art of chemistry knowledge, identify significant knowledge gaps, and recommend future research to resolve those gaps. An initial evaluation of potential review topics indicated that the scope of the review would need to be limited and focused on the most important topics relative to mercury control. To aid in this process, Argonne developed a brief survey that was circulated to researchers in the field who could help identify and prioritize the many aspects of the problem. The results of the survey were then used to design and guide a highly focused literature search that identified key papers for analysis. Each paper was reviewed, summarized, and evaluated for the relevance and quality of the information presented. The results of that work provided the basis for conclusions regarding the state of knowledge of mercury chemistry and recommendations for further research. This report begins by summarizing the survey process and describing how the results were used to shape the critical review. Analyses of information obtained from the various publications are presented chronologically, beginning with the earliest relevant publication found and concluding with the end of the review in early 2003. Finally, the conclusions and recommendations for future research are presented. The survey instrument is included in Appendix A, while detailed information on each of the publications reviewed is given in Appendix B.

Mendelsohn, M. H.; Livengood, C. D.

2006-11-27T23:59:59.000Z

205

CARBON DIOXIDE CAPTURE FROM FLUE GAS USING DRY REGENERABLE SORBENTS  

SciTech Connect

The objective of this project is to develop a simple, inexpensive process to separate CO{sub 2} as an essentially pure stream from a fossil fuel combustion system using a regenerable, sodium-based sorbent. The sorbent being used in this project is sodium carbonate which is converted to sodium bicarbonate, or ''baking soda,'' through reaction with carbon dioxide and water vapor. Sodium bicarbonate is regenerated to sodium carbonate when heated, producing a nearly pure CO{sub 2} stream after condensation of water vapor. This quarter, five cycle thermogravimetric tests were conducted at the Louisiana State University (LSU) with sodium bicarbonate Grade 3 (SBC{number_sign}3) which showed that carbonation activity declined slightly over 5 cycles following severe calcination conditions of 200 C in pure CO{sub 2}. Three different sets of calcination conditions were tested. Initial carbonation activity (as measured by extent of reaction in the first 25 minutes) was greatest subsequent to calcination at 120 C in He, slightly less subsequent to calcination in 80% CO{sub 2}/20% H{sub 2}O, and lowest subsequent to calcination in pure CO{sub 2} at 200 C. Differences in the extent of reaction after 150 minutes of carbonation, subsequent to calcination under the same conditions followed the same trend but were less significant. The differences between fractional carbonation under the three calcination conditions declined with increasing cycles. A preliminary fixed bed reactor test was also conducted at LSU. Following calcination, the sorbent removed approximately 19% of the CO{sub 2} in the simulated flue gas. CO{sub 2} evolved during subsequent calcination was consistent with an extent of carbonation of approximately 49%. Following successful testing of SBC{number_sign}3 sorbent at RTI reported in the last quarter, a two cycle fluidized bed reactor test was conducted with trona as the sorbent precursor, which was calcined to sodium carbonate. In the first carbonation cycle, CO{sub 2} removal rates declined from 20% to about 8% over the course of three hours. Following calcination, a second carbonation cycle was conducted, at a lower temperature with a lower water vapor content. CO{sub 2} removal and sorbent capacity utilization declined under these conditions. Modifications were made to the reactor to permit addition of extra water for testing in the next quarter. Thermodynamic analysis of the carbonation reaction suggested the importance of other phases, intermediate between sodium carbonate and sodium bicarbonate, and the potential for misapplication of thermodynamic data from the literature. An analysis of initial rate data from TGA experiments suggested that the data may fit a model controlled by the heat transfer from the sorbent particle surface to the bulk gas.

David A. Green; Brian S. Turk; Raghubir P. Gupta; William J. McMichael; Douglas P. Harrison; Ya Liang

2002-01-01T23:59:59.000Z

206

A Manual on the Use of Flue Gas Conditioning for ESP Performance Enhancement  

Science Conference Proceedings (OSTI)

Flue gas conditioning can boost the effectiveness of electrostatic precipitators. This manual quantifies both the performance and the cost-benefits, with low-sulfur coals for example cases. It also outlines a procedure that will allow utilities to make estimates for their own units.

1985-08-02T23:59:59.000Z

207

Case Studies to Evaluate Flue Gas Desulfurization Wastewater Physical/Chemical Treatment Performance  

Science Conference Proceedings (OSTI)

This study focuses on physical/chemical wastewater treatment technologies used to remove trace metals from flue gas desulphurization (FGD) wastewater. The scope of this study includes FGD wastewater treatment for trace metals.BackgroundThe United States Environmental Protection Agency (EPA) is currently revising the Effluent Limitations Guidelines (ELGs) for the steam electric power generating industry. The Electric Power Research Institute (EPRI) provided ...

2013-12-23T23:59:59.000Z

208

Carbon dioxide absorber and regeneration assemblies useful for power plant flue gas  

DOE Patents (OSTI)

Disclosed are apparatus and method to treat large amounts of flue gas from a pulverized coal combustion power plant. The flue gas is contacted with solid sorbents to selectively absorb CO.sub.2, which is then released as a nearly pure CO.sub.2 gas stream upon regeneration at higher temperature. The method is capable of handling the necessary sorbent circulation rates of tens of millions of lbs/hr to separate CO.sub.2 from a power plant's flue gas stream. Because pressurizing large amounts of flue gas is cost prohibitive, the method of this invention minimizes the overall pressure drop in the absorption section to less than 25 inches of water column. The internal circulation of sorbent within the absorber assembly in the proposed method not only minimizes temperature increases in the absorber to less than 25.degree. F., but also increases the CO.sub.2 concentration in the sorbent to near saturation levels. Saturating the sorbent with CO.sub.2 in the absorber section minimizes the heat energy needed for sorbent regeneration. The commercial embodiments of the proposed method can be optimized for sorbents with slower or faster absorption kinetics, low or high heat release rates, low or high saturation capacities and slower or faster regeneration kinetics.

Vimalchand, Pannalal; Liu, Guohai; Peng, Wan Wang

2012-11-06T23:59:59.000Z

209

Flue Gas Desulfurization Scrubber Maintenance Guide: Wastewater Treatment and Gypsum Handling Area  

Science Conference Proceedings (OSTI)

The Flue Gas Desulfurization Scrubber Maintenance Guide: Wastewater Treatment and Gypsum Handling Area provides fossil plant maintenance personnel with current maintenance information on these systems. This guide will assist plant maintenance personnel in improving the reliability and reducing the maintenance costs for these areas of their scrubber system.

2009-12-23T23:59:59.000Z

210

"LIMITS AND CHANCES IN FLUE-GAS CLEANING -INTE RNATIONAL PERSPECTIVE"  

E-Print Network (OSTI)

) and elemental mercury (Hg«» under oxidizing conditions of the off-gases downstream of the refuse incinerator), sulfur dioxide (S02)' nitrogen oxides (NOx), carbon monoxide (CO), PCDDs/PCDFs, cadmium (Cd), mercury (Hg emission regulations. Mercury Control in MWCs The capture of Hg in flue gas cleaning devices depends on the

Columbia University

211

Land Application Uses for Dry Flue Gas Desulfurization By-Products: Phase 2  

Science Conference Proceedings (OSTI)

The utility industry currently generates about 20 million tons of flue gas desulfurization (FGD) by-products annually, and the quantity is expected to increase as utilities institute further controls to comply with Clean Air Act requirements. This report presents the results of the second phase of a large-scale study of beneficial land-use applications of these by-products.

1998-04-10T23:59:59.000Z

212

Stabilization of Flue Gas Desulfurization Sludge for Application in Marine Environments.  

E-Print Network (OSTI)

??Flue Gas Desulfurization sludge (FGD, CaSO42H2O, CaSO31/2H2O) is a waste by-product produced when sorbent slurry is passed through wet scrubbers. FGD contains higher concentrations of (more)

Kour, Tej

2004-01-01T23:59:59.000Z

213

Microsoft PowerPoint - Proceedings Cover Sheets  

NLE Websites -- All DOE Office Websites (Extended Search)

Fifth Annual Conference on Fifth Annual Conference on Carbon Capture & Sequestration Steps Toward Deployment Oxy-Combustion (2) Oxy-Combustion (2) CO 2 Capture by Membrane Based Oxy-Fuel Boiler CO 2 Capture by Membrane Based Oxy-Fuel Boiler May 8-11, 2006 * Hilton Alexandria Mark Center * Alexandria, Virginia Minish M. Shah, Bart van Hassel, Max Christie and Juan Li Copyright © 2006 Praxair Technology, Inc. All rights reserved. Outline Outline Advanced Boiler Concept Technology Status Cost/Performance Projections Summary Advanced Boiler Concept Advanced Boiler Concept Gaseous Fuel Water Steam Carbon Dioxide Air Heat recovery Water OTM combustor Air-O 2 Flue Gas + Heat Patents US 5,837,125 US 5,888,272 US 6,382,958 US 6,394,043 US 6,539,719 US 6,562,104 Patents US 5,837,125 US 5,888,272

214

NETL: Alstom's Chemical Looping Combustion Technology with CO2 Capture  

NLE Websites -- All DOE Office Websites (Extended Search)

Oxy-Combustion CO2 Emissions Control Oxy-Combustion CO2 Emissions Control Commercialization of the Iron Based Coal Direct Chemical Looping Process for Power Production with in situ CO2 Capture Project No.: DE-FE0009761 CDLC Process Concept CDLC Process Concept (click to enlarge) Babcock & Wilcox Power Generation Group (B&W) is developing the coal direct chemical looping (CDCL) process. The CDCL process consists of a unique moving bed reactor - the reducer - where pulverized coal is fully converted using iron-based oxygen carriers. The oxygen carrier is reduced from Fe2O3 to FeO/Fe and the flue gas is a concentrated stream of CO2 that is available for storage or beneficial use. The reduced FeO/Fe is oxidized to Fe2O3 using air in the combustor, liberating heat to produce steam for a

215

Albany, OR * Anchorage, AK * Morgantown, WV * Pittsburgh, PA * Sugar Land, TX  

NLE Websites -- All DOE Office Websites (Extended Search)

Efficiency Efficiency Molten Bed Oxy- Coal Combustion with Low Flue Gas Recirculation Background The Advanced Combustion Systems (ACS) Program of the U.S. Department of Energy/ National Energy Technology Laboratory (DOE/NETL) is aiming to develop advanced oxy- combustion systems that have the potential to improve the efficiency and environmental impact of coal-based power generation systems. Currently available carbon dioxide (CO 2 ) capture and storage technologies significantly reduce the efficiency of the power cycle. The ACS Program is focused on developing advanced oxy-combustion systems capable of achieving power plant efficiencies approaching those of air-fired systems without CO 2 capture. Additionally, the program looks to accomplish this while maintaining near

216

Albany, OR * Anchorage, AK * Morgantown, WV * Pittsburgh, PA * Sugar Land, TX  

NLE Websites -- All DOE Office Websites (Extended Search)

Solid-Fueled Pressurized Chemical Solid-Fueled Pressurized Chemical Looping with Flue-Gas Turbine Combined Cycle for Improved Plant Efficiency and CO2 Capture Background The Advanced Combustion Systems (ACS) Program of the U.S. Department of Energy/ National Energy Technology Laboratory (DOE/NETL) is aiming to develop advanced oxy- combustion systems that have the potential to improve the efficiency and environmental impact of coal-based power generation systems. Currently available carbon dioxide (CO2) capture and storage technologies significantly reduce the efficiency of the power cycle. The ACS Program is focused on developing advanced oxy-combustion systems capable of achieving power plant efficiencies approaching those of air-fired systems without CO2 capture. Additionally, the program looks to accomplish this while

217

Effect of H{sub 2}O on the desulfurization of simulated flue gas by an ionic liquid  

SciTech Connect

Functionalized ionic liquids (ILs) have been demonstrated to absorb SO{sub 2} from mixed gases or simulated flue gases efficiently. However, after absorbing a large amount of SO{sub 2}, the viscosity of the ILs increases greatly, which might limit their eventual applications in large-scale desulfurization from mixed gases or flue gases. In this work, the effect of the presence of water in a simulated flue gas on the absorption of SO{sub 2} by a functionalized ionic liquid, 1,1,3,3-tetramethylguanidinium lactate, has been studied at different temperatures. It is found that the presence of water in the simulated flue gas can decrease the viscosity of the IL greatly, and it has no effect on the absorptivity of SO{sub 2} from the flue gas. The densities of the IL absorbing SO{sub 2} from the flue gas with or without water are also studied. They increase with the increase of the amount of SO{sub 2} absorbed from the flue gas in both cases.

Ren, S.H.; Hou, Y.C.; Wu, W.Z.; Chen, X.T.; Fan, J.L.; Zhang, J.W. [Beijing University of Chemical Technology, Beijing (China)

2009-05-15T23:59:59.000Z

218

Inductively Coupled Plasma-Mass Spectrometry with Collision/Reaction Cell Technology for Analysis of Flue Gas Desulfurization Wastew aters  

Science Conference Proceedings (OSTI)

Flue gas desulfurization (FGD) wastewater is produced by pollution control equipment used on coal-fired power plants to reduce sulfur dioxide emissions to air. Wet FGD scrubbers produce an aqueous blowdown stream that contains trace levels of metals that have been adsorbed from flue gas. Power plant owners need to measure concentrations of these metals for purposes of process control, discharge monitoring, or design and operation of wastewater treatment systems. FGD water is a very difficult matrix ...

2012-09-20T23:59:59.000Z

219

Environmental performance of air staged combustor with flue gas recirculation to burn coal/biomass  

DOE Green Energy (OSTI)

The environmental and thermal performance of a 1.07 m diameter, 440 kW atmospheric fluidized bed combustor operated at 700{degrees}C-920{degrees}C and burning coal was studied. Flue gas recirculation was incorporated to enhance the thermal performance and air staging was used to control emissions of SO{sub 2}, CO, NO{sub x} and N{sub 2}O. Studies focused on the effect of excess air, firing rate, and use of sorbent on system performance. The recirculation-staging mode with limestone had the highest thermal efficiency (0.67) using the firing equation. Emission data showed that flue gas recirculation (ratio of 0.7) significantly reduced NO{sub x} emissions; and that use of limestone sorbent at a Ca/S ratio of 3 reduced SO{sub 2} emissions by 64% to approximately 0.310 g/MJ.

Anuar, S.H.; Keener, H.M.

1995-12-31T23:59:59.000Z

220

Transport Membrane Condenser for Water and Energy Recovery from Power Plant Flue Gas  

NLE Websites -- All DOE Office Websites (Extended Search)

Dexin Wang Dexin Wang Principal Investigator Gas Technology Institute 1700 South Mount Prospect Rd Des Plaines, Il 60018 847-768-0533 dexin.wang@gastechnology.org TransporT MeMbrane Condenser for WaTer and energy reCovery froM poWer planT flue gas proMIs/projeCT no.: nT0005350 Background One area of the U.S. Department of Energy's (DOE) Innovations for Existing Plants (IEP) Program's research is being performed to develop advanced technologies to reuse power plant cooling water and associated waste heat and to investigate methods to recover water from power plant flue gas. Considering the quantity of water withdrawn and consumed by power plants, any recovery or reuse of this water can significantly reduce the plant's water requirements. Coal occurs naturally with water present (3-60 weight %), and the combustion

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221

Advanced Technology for the Capture of Carbon Dioxide from Flue Gases  

NLE Websites -- All DOE Office Websites (Extended Search)

Technology for the Capture of Carbon Dioxide Technology for the Capture of Carbon Dioxide from Flue Gases by Shrikar Chakravarti (shrikar_chakravarti@praxair.com; 716-879-4760) Amitabh Gupta (ami_gupta@praxair.com; 716-879-2194) Balazs Hunek (balazs_hunek@praxair.com; 716-879-2250) Praxair, Inc. Process & Systems R&D, CO 2 Technology 175 East Park Drive, P.O. Box 44 Tonawanda, NY 14150 USA key words: flue gas, carbon dioxide, separation, amine absorption, oxygen tolerant process, amine blends First National Conference on Carbon Sequestration Washington, DC, May 15-17, 2001 Copyright 2001, Praxair Technology, Inc. All Rights Reserved. 1 Abstract Cost effective carbon sequestration schemes have been identified as a key need for dealing with carbon dioxide's (CO 2 ) impact on global climate change. Two main

222

Sorbent Injection for Small ESP Mercury Control in Low Sulfur Eastern Bituminous Coal Flue Gas  

NLE Websites -- All DOE Office Websites (Extended Search)

Sorbent InjectIon for Small eSP Sorbent InjectIon for Small eSP mercury control In low Sulfur eaStern bItumInouS coal flue GaS Background Full-scale field testing has demonstrated the effectiveness of activated carbon injection (ACI) as a mercury-specific control technology for certain coal-fired power plants, depending on the plant's coal feedstock and existing air pollution control device configuration. In a typical configuration, powdered activated carbon (PAC) is injected downstream of the plant's air heater and upstream of the existing particulate control device - either an electrostatic precipitator (ESP) or a fabric filter (FF). The PAC adsorbs the mercury from the combustion flue gas and is subsequently captured along with the fly ash in the ESP or FF. ACI can have some negative side

223

NETL: IEP – Post-Combustion CO2 Emissions Control - CO2 Capture from Flue  

NLE Websites -- All DOE Office Websites (Extended Search)

from Flue Gas by Phase Transitional Absorption from Flue Gas by Phase Transitional Absorption Project No.: FG26-05NT42488 Basic Illustration of the Phase Transitional Absorption Process. Basic Illustration of the Phase Transitional Absorption Process. Hampton University researched a novel carbon dioxide (CO2) absorption concept, phase transitional absorption, that utilizes a two-part proprietary absorbent consisting of an activated agent dissolved in a solvent. Phase separation of the activated agent from the chemical solvent occurs during CO2 absorption and physical separation of the two phases exiting the absorber reduces the volume of process liquid requiring thermal regeneration. This unique aspect of phase transitional absorption also decreases the amount of energy (i.e., steam) required to liberate the CO2. If the proper liquid

224

Flue gas conditioning for improved particle collection in electrostatic precipitators. Quarterly technical report  

SciTech Connect

The purpose of this research program is to identify and evaluate a variety of additives capable of increasing particle cohesion which could be used for improving collection efficiency in an ESP. A three-phase screening process will be used to provide the, evaluation of many additives in a logical and cost-effective manner. The three step approach involves the following experimental setups: 1. Provide a preliminary screening in the laboratory by measuring the effects of various conditioning agents on reentrainment of flyash particles in an electric field operating at simulated flue gas conditions. 2. Evaluate the successful additives using a 100 acfm bench-scale ESP operating on actual flue gas. 3. Obtain the data required for scaling up the technology by testing the two or three most promising conditioning agents at the pilot scale.

Durham, M.D.

1992-04-27T23:59:59.000Z

225

Model predictive control of a wet limestone flue gas desulfurization pilot plant  

SciTech Connect

A model predictive control (MPC) strategy based on a dynamic matrix (DMC) is designed and applied to a wet limestone flue gas desulfurization (WLFGD) pilot plant to evaluate what enhancement in control performance can be achieved with respect to a conventional decentralized feedback control strategy. The results reveal that MPC can significantly improve both reference tracking and disturbance rejection. For disturbance rejection, the main control objective in WLFGD plants, selection of tuning parameters and sample time, is of paramount importance due to the fast effect of the main disturbance (inlet SO{sub 2} load to the absorber) on the most important controlled variable (outlet flue gas SO{sub 2} concentration). The proposed MPC strategy can be easily applied to full-scale WLFGD plants.

Perales, A.L.V.; Ollero, P.; Ortiz, F.J.G.; Gomez-Barea, A. [University of Seville, Seville (Spain). Dept. of Chemical & Environmental Engineering

2009-06-15T23:59:59.000Z

226

Microalgae Production from Power Plant Flue Gas: Environmental Implications on a Life Cycle Basis  

DOE Green Energy (OSTI)

Power-plant flue gas can serve as a source of CO{sub 2} for microalgae cultivation, and the algae can be cofired with coal. This life cycle assessment (LCA) compared the environmental impacts of electricity production via coal firing versus coal/algae cofiring. The LCA results demonstrated lower net values for the algae cofiring scenario for the following using the direct injection process (in which the flue gas is directly transported to the algae ponds): SOx, NOx, particulates, carbon dioxide, methane, and fossil energy consumption. Carbon monoxide, hydrocarbons emissions were statistically unchanged. Lower values for the algae cofiring scenario, when compared to the burning scenario, were observed for greenhouse potential and air acidification potential. However, impact assessment for depletion of natural resources and eutrophication potential showed much higher values. This LCA gives us an overall picture of impacts across different environmental boundaries, and hence, can help in the decision-making process for implementation of the algae scenario.

Kadam, K. L.

2001-06-22T23:59:59.000Z

227

Effects of Chlorine and Other Flue Gas Parameters on SCR Catalyst Mercury Oxidation and Capture Efficiencies  

Science Conference Proceedings (OSTI)

Although catalyst behavior is relatively well understood with respect to deNOx and SO2 oxidation, relatively little is known about mercury oxidation behavior. This test program seeks to evaluate the mercury oxidation performance of multiple types of Selective Catalytic Reduction (SCR) catalyst as a function of changes in various flue gas parameters, including chlorine level, ammonia level, flow rate, and temperature. This interim report describes the results from parametric testing on the first catalyst.

2008-08-27T23:59:59.000Z

228

Predicting extents of mercury oxidation in coal-derived flue gases  

SciTech Connect

The extent of Hg oxidation determines the portion of Hg in the flue gas from a coal-fired power station that can be removed in SO{sub 2} scrubbers. This article evaluates predicted extents of Hg oxidation from a detailed chemical reaction mechanism, emphasizing the data from 1 and 29 MW pilotscale furnaces for diverse coal types. The proposed mercury (Hg) oxidation mechanism consists of a 168-step gas phase mechanism that accounts for interaction among all important flue gas species and a heterogeneous oxidation mechanism on unburned carbon (UBC) particles, similar to established chemistry for dioxin production under comparable conditions. The mechanism was incorporated into a gas cleaning system simulator to predict the proportions of elemental and oxidized Hg species in the flue gases, given relevant coal properties (C/H/O/N/S/Cl/Hg), flue gas composition (O{sub 2}, H{sub 2}O, HCl), emissions (NOx, SOx, CO), the recovery of fly ash, fly ash loss-on-ignition (LOI), and a thermal history. Predictions are validated without parameter adjustments against datasets from lab-scale and from pilot-scale coal furnaces at 1 and 29 MWt. Collectively, the evaluations cover 16 coals representing ranks from sub-bituminous through high-volatile bituminous, including cases with Cl{sub 2} and CaCl{sub 2} injection. The predictions are, therefore, validated over virtually the entire domain of Cl-species concentrations and UBC levels of commercial interest. Additional predictions identify the most important operating conditions in the furnace and gas cleaning system, including stoichiometric ratio, NOX, LOI, and residence time, as well as the most important coal properties, including coal-Cl. 33 refs., 4 figs., 3 tabs.

Stephen Niksa; Naoki Fujiwara [Niksa Energy Associates, Belmont, CA (US)

2005-07-01T23:59:59.000Z

229

Thermal Flue Gas Desulfurization Wastewater Treatment Processes for Zero Liquid Discharge Operations  

Science Conference Proceedings (OSTI)

This report presents a worldwide inventory of power plant flue gas desulfurization (FGD) blowdown treatment systems using thermal technologies to achieve zero liquid discharge (ZLD) water management. The number of thermal treatment systems presently operating is very few, with the majority using chemical pretreatment followed by evaporation in a brine concentrator and crystallizer and finally dewatering of the residual salts. Of the operating thermal ZLD systems identified, six are located in Italy and o...

2010-12-31T23:59:59.000Z

230

Effects of Ammonia and Flue Gas Desulfurization (FGD) Wastewater on Power Plant Effluent Toxicity  

Science Conference Proceedings (OSTI)

The Clean Air Act Amendments and subsequently the Clean Air Interstate Rule and other state-level actions have resulted in implementation of a variety of technologies to reduce emissions of nitrogen oxides (NOx), and to further reduce emissions of sulfur oxides (SOx). Selective Catalytic Reduction (SCR) and SNCR (non-catalytic) are two of the primary NOx emission reduction technologies. Often, ammonia is injected into flue gas as the reductant for the chemical reaction that converts NOx to nitrogen gas. ...

2007-12-18T23:59:59.000Z

231

Flue Gas Desulfurization Gypsum Agricultural Network: North Dakota Sites 1 and 2 (Wheat)  

Science Conference Proceedings (OSTI)

This report describes work performed in 2007 and 2008 to evaluate potential beneficial agricultural uses of flue gas desulfurization (FGD) gypsum at two sites in North Dakota. This work was part of a national research network evaluating beneficial uses of FGD gypsum in agriculture. The objectives of this research were to determine the influence of FGD gypsum applications on soil quality and on wheat (Triticum aestivum L.) yields and seed quality. Three application rates of FGD gypsum were compared with s...

2011-12-16T23:59:59.000Z

232

Demonstration Test of Iron Addition to a Flue Gas Desulfurization (FGD) Absorber to Enhance Mercury Removal  

Science Conference Proceedings (OSTI)

This report documents the findings from a full-scale demonstration test of the effects on trace elements of adding iron to a forced oxidation flue gas desulfurization (FGD) scrubber. Three specific effects were evaluated: lowering mercury emissions to the atmosphere; lowering the concentration of soluble or sub-micron-sized mercury particles in FGD purge water, which could improve removal of mercury in FGD purge water treatment; and lowering the concentration of selenate in FGD purge water, which could i...

2009-12-31T23:59:59.000Z

233

Optimal absorption pressure for CO/sub 2/ recovery from flue gas calculated  

SciTech Connect

This paper calculates the cost of separating carbon dioxide from flue gas for enhanced oil recovery (EOR). It diagrams a carbon dioxide recovery plant and presents tables with costs of carbon dioxide recovery at various absorption pressures, and cost in various EOR project. It shows that the utility cost is a dominant factor and that a gas compressor does not reduce the equipment cost effectively at low pressure and concludes that 70 psig is the optimal operating pressure.

Fang, C.S.; Fan, S.K.

1982-11-22T23:59:59.000Z

234

MEMBRANE PROCESS TO SEQUESTER CO2 FROM POWER PLANT FLUE GAS  

Science Conference Proceedings (OSTI)

The objective of this project was to assess the feasibility of using a membrane process to capture CO2 from coal-fired power plant flue gas. During this program, MTR developed a novel membrane (Polaris) with a CO2 permeance tenfold higher than commercial CO2-selective membranes used in natural gas treatment. The Polaris membrane, combined with a process design that uses a portion of combustion air as a sweep stream to generate driving force for CO2 permeation, meets DOE post-combustion CO2 capture targets. Initial studies indicate a CO2 separation and liquefaction cost of $20 - $30/ton CO2 using about 15% of the plant energy at 90% CO2 capture from a coal-fired power plant. Production of the Polaris CO2 capture membrane was scaled up with MTRs commercial casting and coating equipment. Parametric tests of cross-flow and countercurrent/sweep modules prepared from this membrane confirm their near-ideal performance under expected flue gas operating conditions. Commercial-scale, 8-inch diameter modules also show stable performance in field tests treating raw natural gas. These findings suggest that membranes are a viable option for flue gas CO2 capture. The next step will be to conduct a field demonstration treating a realworld power plant flue gas stream. The first such MTR field test will capture 1 ton CO2/day at Arizona Public Services Cholla coal-fired power plant, as part of a new DOE NETL funded program.

Tim Merkel; Karl Amo; Richard Baker; Ramin Daniels; Bilgen Friat; Zhenjie He; Haiqing Lin; Adrian Serbanescu

2009-03-31T23:59:59.000Z

235

Performance Evaluation of a Radial Deionization System for Flue Gas Desulfurization Wastewater Treatment  

Science Conference Proceedings (OSTI)

The U. S. Environmental Protection Agencys proposed effluent limitation guidelines for steam electric power generating units could affect not only how power plants use water but also how they discharge it. The revised guidelines propose discharge limits for selenium, mercury, arsenic, and nitrite/nitrate in flue gas desulfurization (FGD) wastewater. Final rule approval is expected by the middle of 2014. Additional regulation of these contaminants and other constituents may occur through ...

2013-12-23T23:59:59.000Z

236

Recovery of Water from Boiler Flue Gas Using Condensing Heat Exchangers  

Science Conference Proceedings (OSTI)

Most of the water used in a thermoelectric power plant is used for cooling, and DOE has been focusing on possible techniques to reduce the amount of fresh water needed for cooling. DOE has also been placing emphasis on recovery of usable water from sources not generally considered, such as mine water, water produced from oil and gas extraction, and water contained in boiler flue gas. This report deals with development of condensing heat exchanger technology for recovering moisture from flue gas from coal-fired power plants. The report describes: An expanded data base on water and acid condensation characteristics of condensing heat exchangers in coal-fired units. This data base was generated by performing slip stream tests at a power plant with high sulfur bituminous coal and a wet FGD scrubber and at a power plant firing highmoisture, low rank coals. Data on typical concentrations of HCl, HNO{sub 3} and H{sub 2}SO{sub 4} in low temperature condensed flue gas moisture, and mercury capture efficiencies as functions of process conditions in power plant field tests. Theoretical predictions for sulfuric acid concentrations on tube surfaces at temperatures above the water vapor dewpoint temperature and below the sulfuric acid dew point temperature. Data on corrosion rates of candidate heat exchanger tube materials for the different regions of the heat exchanger system as functions of acid concentration and temperature. Data on effectiveness of acid traps in reducing sulfuric acid concentrations in a heat exchanger tube bundle. Condensed flue gas water treatment needs and costs. Condensing heat exchanger designs and installed capital costs for full-scale applications, both for installation immediately downstream of an ESP or baghouse and for installation downstream of a wet SO{sub 2} scrubber. Results of cost-benefit studies of condensing heat exchangers.

Levy, Edward; Bilirgen, Harun; DuPont, John

2011-03-31T23:59:59.000Z

237

Recovery of Water from Boiler Flue Gas Using Condensing Heat Exchangers  

Science Conference Proceedings (OSTI)

Most of the water used in a thermoelectric power plant is used for cooling, and DOE has been focusing on possible techniques to reduce the amount of fresh water needed for cooling. DOE has also been placing emphasis on recovery of usable water from sources not generally considered, such as mine water, water produced from oil and gas extraction, and water contained in boiler flue gas. This report deals with development of condensing heat exchanger technology for recovering moisture from flue gas from coal-fired power plants. The report describes: (1) An expanded data base on water and acid condensation characteristics of condensing heat exchangers in coal-fired units. This data base was generated by performing slip stream tests at a power plant with high sulfur bituminous coal and a wet FGD scrubber and at a power plant firing high-moisture, low rank coals. (2) Data on typical concentrations of HCl, HNO{sub 3} and H{sub 2}SO{sub 4} in low temperature condensed flue gas moisture, and mercury capture efficiencies as functions of process conditions in power plant field tests. (3) Theoretical predictions for sulfuric acid concentrations on tube surfaces at temperatures above the water vapor dewpoint temperature and below the sulfuric acid dew point temperature. (4) Data on corrosion rates of candidate heat exchanger tube materials for the different regions of the heat exchanger system as functions of acid concentration and temperature. (5) Data on effectiveness of acid traps in reducing sulfuric acid concentrations in a heat exchanger tube bundle. (6) Condensed flue gas water treatment needs and costs. (7) Condensing heat exchanger designs and installed capital costs for full-scale applications, both for installation immediately downstream of an ESP or baghouse and for installation downstream of a wet SO{sub 2} scrubber. (8) Results of cost-benefit studies of condensing heat exchangers.

Edward Levy; Harun Bilirgen; John DuPoint

2011-03-31T23:59:59.000Z

238

A Review of Agricultural and Other Land Application Uses of Flue Gas Desulfurization Products  

Science Conference Proceedings (OSTI)

The production of flue gas desulfurization (FGD) products, especially FGD gypsum, is expected to increase substantially over the next ten to twenty years in response to clean air initiatives. There are a large number of agricultural and other land application uses of FGD products that have received previous research and development attention, but only in specific locations of the United States and under limited conditions of crops, climate and soil types. This report discusses current and potential futur...

2006-03-13T23:59:59.000Z

239

Land Application Uses for Dry Flue Gas Desulfurization By-Products: Phase 3  

Science Conference Proceedings (OSTI)

The utility industry currently generates about 25 million tons of flue gas desulfurization (FGD) by-products annually in the United States -- a quantity that is expected to increase as utilities apply new controls to comply with Clean Air Act Amendments. This report presents results of the third and final phase of a large-scale study of beneficial land-use applications for these by-products.

1999-09-28T23:59:59.000Z

240

Land Application Uses for Dry Flue Gas Desulfurization By-Products  

Science Conference Proceedings (OSTI)

New sulfur dioxide removal technologies produce a dry, solid by-product material consisting of excess sorbent, reaction products that contain sulfates and sulfites, and coal fly ash. The scarcity of landfill disposal sites for such flue gas desulfurization (FGD) by-products has led to a long-term study on possible large-volume beneficial applications. To date, FGD by-products have been successfully used in agriculture, construction, and strip mine reclamation.

1995-09-26T23:59:59.000Z

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Novel regenerable sorbent for mercury capture from flue gases of coal-fired power plant  

Science Conference Proceedings (OSTI)

A natural chabazite-based silver nanocomposite (AgMC) was synthesized to capture mercury from flue gases of coal-fired power plants. Silver nanoparticles were engineered on zeolite through ion-exchange of sodium ions with silver ions, followed by thermal annealing. Mercury sorption test using AgMC was performed at various temperatures by exposing it to either pulse injection of mercury or continuous mercury flow. A complete capture of mercury by AgMC was achieved up to a capture temperature of 250{sup o}C. Nano silver particles were shown to be the main active component for mercury capture by amalgamation mechanism. Compared with activated carbon-based sorbents, the sorbent prepared in this study showed a much higher mercury capture capacity and upper temperature limit for mercury capture. More importantly, the mercury captured by the spent AgMC could be easily released for safe disposal and the sorbent regenerated by simple heating at 400{sup o}C. Mercury capture tests performed in real flue gas environment showed a much higher level of mercury capture by AgMC than by other potential mercury sorbents tested. In our mercury capture tests, the AgMC exposed to real flue gases showed an increased mercury capture efficiency than the fresh AgMC. 38 refs., 6 figs.

Yan Liu; David J.A. Kelly; Hongqun Yang; Christopher C.H. Lin; Steve M. Kuznicki; Zhenghe Xu [University of Alberta, Edmonton, AB (Canada). Department of Chemical and Materials Engineering

2008-08-15T23:59:59.000Z

242

Fundamental mechanisms in flue gas conditioning. Quarterly report, January 1994--March 1994  

Science Conference Proceedings (OSTI)

We are currently performing a series of pilot-scale tests designed to determine the effects that adsorbed water has on fabric filtration and electrostatic precipitation of entrained fly ash particles in actual flue gas environments. We are investigating two key phenomena in our pilot-scale tests. The first is the ability of flue gas humidification to increase ash cohesivity through the creation of liquid bridges between particles collected in a fabric filter. Increasing cohesivity through the development of liquid bridges was demonstrated in our laboratory measurements of tensile strength and uncompacted bulk porosity, and in filtration studies performed for DOE/PETC under an earlier contract. With the range of coals that will be fired in Southern Research Institute`s Coal Combustion Facility (CCF), filtration tests should verify how different fly ashes react to water conditioning in actual flue gas environments. The CCF provides a valuable test location for our studies. The second phenomenon we plan to study is the electrostatic reentrainment of previously collected ash particles in an ESP. We have prepared a small ESP for use in our pilot-scale tests. Our laboratory studies have shown the effects that relative humidity can have on the forces that hold the collected ash on the grounded ESP plate.

Snyder, T.R.

1994-04-18T23:59:59.000Z

243

Analysis of CO2 Separation from Flue Gas, Pipeline Transportation, and Sequestration in Coal  

Science Conference Proceedings (OSTI)

This report was written to satisfy a milestone of the Enhanced Coal Bed Methane Recovery and CO2 Sequestration task of the Big Sky Carbon Sequestration project. The report begins to assess the costs associated with separating the CO2 from flue gas and then injecting it into an unminable coal seam. The technical challenges and costs associated with CO2 separation from flue gas and transportation of the separated CO2 from the point source to an appropriate sequestration target was analyzed. The report includes the selection of a specific coal-fired power plant for the application of CO2 separation technology. An appropriate CO2 separation technology was identified from existing commercial technologies. The report also includes a process design for the chosen technology tailored to the selected power plant that used to obtain accurate costs of separating the CO2 from the flue gas. In addition, an analysis of the costs for compression and transportation of the CO2 from the point-source to an appropriate coal bed sequestration site was included in the report.

Eric P. Robertson

2007-09-01T23:59:59.000Z

244

Industrial Plant for Flue Gas Treatment with High Power Electron Accelerators  

SciTech Connect

Fossil fuel combustion leads to acidic pollutants, like SO2, NOx, HCl emission. Different control technologies are proposed however, the most popular method is combination of wet FGD (flue gas desulfurization) and SCR (selective catalytic reduction). First, using lime or limestone slurry leads to SO2 capture, and gypsum is a product. The second process where ammonia is used as reagent and nitrogen oxides are reduced over catalyst surface to gaseous nitrogen removes NOx. New advanced method using electron accelerators for simultaneous SO2 and NOx removal has been developed in Japan, the USA, Germany and Poland. Both pollutants are removed with high efficiency and byproduct can be applied as fertilizer. Two industrial plants have been already constructed. One in China and second in Poland, third one is under construction in Japan. Information on the Polish plant is presented in the paper. Plant has been constructed at Power Station Pomorzany, Szczecin (Dolna Odra Electropower Stations Group) and treats flue gases from two Benson boilers 60 MWe and 100 MWth each. Flow rate of the flue gas stream is equal to 270 000 Nm3/h. Four transformer accelerators, 700 keV electron energy and 260 kW beam power each were applied. With its 1.05 MW total beam power installed it is a biggest radiation facility over the world, nowadays. Description of the plant and results obtained has been presented in the paper.

Chmielewski, Andrzej G. [Institute of Nuclear Chemistry and Technology, Warsaw (Poland); University of technology, faculty of Process and Chemical Engineering, Warsaw (Poland); Tyminski, Bogdan; Zimek, Zbigniew; Pawelec, Andrzej [Institute of Nuclear Chemistry and Technology, Warsaw (Poland); Licki, Janusz [Institute of Atomic Energy, Swierk (Poland)

2003-08-26T23:59:59.000Z

245

Using Flue Gas Huff 'n Puff Technology and Surfactants to Increase Oil Production from the Antelope Shale Formation of the Railroad Gap Oil Field  

Science Conference Proceedings (OSTI)

This project was designed to test cyclic injection of exhaust flue gas from compressors located in the field to stimulate production from Antelope Shale zone producers. Approximately 17,000 m{sup 3} ({+-}600 MCF) of flue gas was to be injected into each of three wells over a three-week period, followed by close monitoring of production for response. Flue gas injection on one of the wells would be supplemented with a surfactant.

McWilliams, Michael

2001-12-18T23:59:59.000Z

246

PRODUCTION OF CONSTRUCTION AGGREGATES FROM FLUE GAS DESULFURIZATION SLUDGE  

Science Conference Proceedings (OSTI)

The three main conclusions of this report are: (1) The pilot plant successfully demonstrated the continuous, fully-integrated, long-term process operation, including the mixing, pelletizing, and curing steps for aggregate production. The curing vessel, which was designed for the pilot plant test, was operated in a mass flow mode and performed well during pilot plant operation. (2) The pilot plant test demonstrated process flexibility. The same equipment was used to produce lightweight, medium-weight, and road aggregates. The only change was the mix formulation. Aggregates were produced from a variety of mix designs and from FGD sludge with solids concentrations between 45.0% and 56.7% and moisture contents between 55.0% and 43.3%. (3) The pilot plant provided operating data and experience to design and cost a commercial plant, which was not part of the cooperative agreement.

M.M. Wu; D.C. McCoy; R.O. Scandrol; M.L. Fenger; J.A. Withum; R.M. Statnick

2000-05-01T23:59:59.000Z

247

A Low Cost and High Efficient Facility for Removal of $\\SO_{2}$ and $\\NO_{x}$ in the Flue Gas from Coal Fire Power Plant  

E-Print Network (OSTI)

A Low Cost and High Efficient Facility for Removal of $\\SO_{2}$ and $\\NO_{x}$ in the Flue Gas from Coal Fire Power Plant

Pei, Y J; Dong, X; Feng, G Y; Fu, S; Gao, H; Hong, Y; Li, G; Li, Y X; Shang, L; Sheng, L S; Tian, Y C; Wang, X Q; Wang, Y; Wei, W; Zhang, Y W; Zhou, H J

2001-01-01T23:59:59.000Z

248

Membrane Process to Capture CO{sub 2} from Coal-Fired Power Plant Flue Gas  

SciTech Connect

This final report describes work conducted for the U.S. Department of Energy National Energy Technology Laboratory (DOE NETL) on development of an efficient membrane process to capture carbon dioxide (CO{sub 2}) from power plant flue gas (award number DE-NT0005312). The primary goal of this research program was to demonstrate, in a field test, the ability of a membrane process to capture up to 90% of CO{sub 2} in coal-fired flue gas, and to evaluate the potential of a full-scale version of the process to perform this separation with less than a 35% increase in the levelized cost of electricity (LCOE). Membrane Technology and Research (MTR) conducted this project in collaboration with Arizona Public Services (APS), who hosted a membrane field test at their Cholla coal-fired power plant, and the Electric Power Research Institute (EPRI) and WorleyParsons (WP), who performed a comparative cost analysis of the proposed membrane CO{sub 2} capture process. The work conducted for this project included membrane and module development, slipstream testing of commercial-sized modules with natural gas and coal-fired flue gas, process design optimization, and a detailed systems and cost analysis of a membrane retrofit to a commercial power plant. The Polaris membrane developed over a number of years by MTR represents a step-change improvement in CO{sub 2} permeance compared to previous commercial CO{sub 2}-selective membranes. During this project, membrane optimization work resulted in a further doubling of the CO{sub 2} permeance of Polaris membrane while maintaining the CO{sub 2}/N{sub 2} selectivity. This is an important accomplishment because increased CO{sub 2} permeance directly impacts the membrane skid cost and footprint: a doubling of CO{sub 2} permeance halves the skid cost and footprint. In addition to providing high CO{sub 2} permeance, flue gas CO{sub 2} capture membranes must be stable in the presence of contaminants including SO{sub 2}. Laboratory tests showed no degradation in Polaris membrane performance during two months of continuous operation in a simulated flue gas environment containing up to 1,000 ppm SO{sub 2}. A successful slipstream field test at the APS Cholla power plant was conducted with commercialsize Polaris modules during this project. This field test is the first demonstration of stable performance by commercial-sized membrane modules treating actual coal-fired power plant flue gas. Process design studies show that selective recycle of CO{sub 2} using a countercurrent membrane module with air as a sweep stream can double the concentration of CO{sub 2} in coal flue gas with little energy input. This pre-concentration of CO{sub 2} by the sweep membrane reduces the minimum energy of CO{sub 2} separation in the capture unit by up to 40% for coal flue gas. Variations of this design may be even more promising for CO{sub 2} capture from NGCC flue gas, in which the CO{sub 2} concentration can be increased from 4% to 20% by selective sweep recycle. EPRI and WP conducted a systems and cost analysis of a base case MTR membrane CO{sub 2} capture system retrofitted to the AEP Conesville Unit 5 boiler. Some of the key findings from this study and a sensitivity analysis performed by MTR include: The MTR membrane process can capture 90% of the CO{sub 2} in coal flue gas and produce high-purity CO{sub 2} (>99%) ready for sequestration. CO{sub 2} recycle to the boiler appears feasible with minimal impact on boiler performance; however, further study by a boiler OEM is recommended. For a membrane process built today using a combination of slight feed compression, permeate vacuum, and current compression equipment costs, the membrane capture process can be competitive with the base case MEA process at 90% CO{sub 2} capture from a coal-fired power plant. The incremental LCOE for the base case membrane process is about equal to that of a base case MEA process, within the uncertainty in the analysis. With advanced membranes (5,000 gpu for CO{sub 2} and 50 for CO{sub 2}/N{sub 2}), operating with no feed compression and

Merkel, Tim; Wei, Xiaotong; Firat, Bilgen; He, Jenny; Amo, Karl; Pande, Saurabh; Baker, Richard; Wijmans, Hans; Bhown, Abhoyjit

2012-03-31T23:59:59.000Z

249

Pilot-Scale Demonstration of hZVI Process for Treating Flue Gas Desulfurization Wastewater at Plant Wansley, Carrollton, GA  

E-Print Network (OSTI)

The hybrid Zero Valent Iron (hZVI) process is a novel chemical treatment platform that has shown great potential in our previous bench-scale tests for removing selenium, mercury and other pollutants from Flue Gas Desulfurization (FGD) wastewater. This integrated treatment system employs new iron chemistry to create highly reactive mixture of Fe^0, iron oxides (FeOx) and various forms of Fe (II) for the chemical transformation and mineralization of various heavy metals in water. To further evaluate and develop the hZVI technology, a pilot-scale demonstration had been conducted to continuously treat 1-2 gpm of the FGD wastewater for five months at Plant Wansley, a coal-fired power plant of Georgia Power. This demonstrated that the scaled-up system was capable of reducing the total selenium (of which most was selenate) in the FGD wastewater from over 2500 ppb to below 10 ppb and total mercury from over 100 ppb to below 0.01 ppb. This hZVI system reduced other toxic metals like Arsenic (III and V), Chromium (VI), Cadmium (II), Lead (II) and Copper (II) from ppm level to ppb level in a very short reaction time. The chemical consumption was estimated to be approximately 0.2-0.4 kg of ZVI per 1 m^3 of FGD water treated, which suggested the process economics could be very competitive. The success of the pilot test shows that the system is scalable for commercial application. The operational experience and knowledge gained from this field test could provide guidance to further improvement of technology for full scale applications. The hZVI technology can be commercialized to provide a cost-effective and reliable solution to the FGD wastewater and other metal-contaminated waste streams in various industries. This technology has the potential to help industries meet the most stringent environmental regulations for heavy metals and nutrients in wastewater treatment.

Peddi, Phani 1987-

2011-12-01T23:59:59.000Z

250

OpenEI Community - natural gas+ condensing flue gas heat recovery+ water  

Open Energy Info (EERE)

Increase Natural Gas Increase Natural Gas Energy Efficiency http://en.openei.org/community/group/increase-natural-gas-energy-efficiency Description: Increased natural gas energy efficiency = Reduced utility bills = Profit In 2011 the EIA reports that commercial buildings, industry and the power plants consumed approx. 17.5 Trillion cu.ft. of natural gas.How much of that energy was wasted, blown up chimneys across the country as HOT exhaust into the atmosphere? 40% ~ 60% ? At what temperature?read more natural gas+ condensing flue gas heat

251

Flue Gas Desulfurization Gypsum Agricultural Network: Wisconsin Arlington Research Station Fields 295 and 27 (Alfalfa)  

Science Conference Proceedings (OSTI)

This report describes field research in Wisconsin as part of the Flue Gas Desulfurization Gypsum (FGDG) Agricultural Network. The objective of this study, conducted during 2009-2010, was to evaluate potential beneficial agricultural uses of FGDG as a soil amendment to improve alfalfa production. FGDG was compared to a commercially available gypsum product (C-GYP) widely sold in the U.S. Midwest and other areas. A study was established in two fields (Field 295 in 2009/2010 and Field 27 in 2010) at ...

2013-05-06T23:59:59.000Z

252

Enhanced Control of Mercury by Wet Flue Gas Desulfurization Systems - Site 2 Results  

Science Conference Proceedings (OSTI)

The U.S. Department of Energy and EPRI are co-funding this project to improve the control of mercury emissions from coal-fired power plants equipped with wet flue gas desulfurization (FGD) systems. The project is investigating catalytic oxidation of vapor-phase elemental mercury to a form that is more effectively captured in wet FGD systems. If successfully developed, the process could be applicable to over 90,000 MW of utility generating capacity with existing FGD systems, and to future FGD installation...

2000-11-28T23:59:59.000Z

253

Leaching Assessment of Fly Ash, Flue Gas Desulfurization Filter Cake, and Fixated Scrubber Solids  

Science Conference Proceedings (OSTI)

The by-products of coal combustion (for example, fly ash and flue gas desulfurization filter cake) are an important environmental concern due to potential leaching of trace constituents and the large volume of residues produced. About 40% of these by-products may be utilized as raw materials outside of the energy sector; the remaining 60% of the coal combustion products (CCPs) are disposed of as waste. At Plant 14090, the subject of this report, fly ash and scrubber sludge are blended with quicklime ...

2012-12-03T23:59:59.000Z

254

Flue Gas Desulfurization Gypsum Agricultural Network: North Dakota Sites 3, 4, and 5 (Canola)  

Science Conference Proceedings (OSTI)

Flue gas desulfurization gypsum (FGDG) is a very pure form of gypsum that is a by-product from the combustion of coal for energy production. This report describes 2008-2009 work to evaluate potential beneficial agricultural uses of FGDG at three sites near Langdon, North Dakota. This work was part of a national research network evaluating beneficial uses of FGDG in agriculture, in this case, fertilization of dryland canola by FGDG. The objectives of this research were to 1) determine the influence of FGD...

2011-11-28T23:59:59.000Z

255

Flue Gas Desulfurization Gypsum Agricultural Network: Ohio Sites 1 (Mixed Hay) and 2 (Corn)  

Science Conference Proceedings (OSTI)

The objectives of this work conducted during 20082010 were to evaluate potential beneficial agricultural uses of flue gas desulphurization gypsum (FGDG) in eastern Ohio and to assess the potential for environmental effects of the use of FGDG. Two field experiments were conducted at the eastern Ohio research site, one involving a mixed-grass hay field and the other a corn (Zea mays L.) field. FGDG and mined gypsum product were applied one time at rates of 0.2, 2.0, and 20 megagrams ...

2012-09-17T23:59:59.000Z

256

Flue Gas Conditioning to Reduce Particulate Emissions in Industrial Coal-Fired Boilers  

E-Print Network (OSTI)

Chemical technology has been used successfully to solve many of the operational and emissions problems that result from burning coal. This paper describes the use of blended chemical flue gas conditioners to significantly reduce particulate emissions in coal-fired industrial boilers. In many cases, these chemical conditioning agents have increased the efficiency of electrostatic precipitators and mechanical collectors by more than fifty percent. The effectiveness of this technology has been demonstrated on units generating 50,000 to 200,000 lbs./hr. steam. Results achieved at various industrial plants under actual operating conditions are presented.

Miller, B.; Keon, E.

1980-01-01T23:59:59.000Z

257

Reactive carbon from life support wastes for incinerator flue gas cleanup-System Testing  

DOE Green Energy (OSTI)

This paper presents the results from a joint research initiative between NASA Ames Research Center and Lawrence Berkeley National lab. The objective of the research is to produce activated carbon from life support wastes and to use the activated carbon to adsorb and chemically reduce the NO{sub x} and SO{sub 2} contained in incinerator flue gas. Inedible biomass waste from food production is the primary waste considered for conversion to activated carbon. Results to date show adsorption of both NO{sub x} and SO{sub 2} in activated carbon made from biomass. Conversion of adsorbed NO{sub x} to nitrogen has also been observed.

Fisher, John W.; Pisharody, Suresh; Moran, Mark J.; Wignarajah, Kanapathipillai; Xu, X.H.; Shi, Yao; Chang, Shih-Ger

2002-05-14T23:59:59.000Z

258

Process to recover CO/sub 2/ from flue gas gets first large-scale tryout in Texas  

SciTech Connect

This article describes a new plant that will recover 1,120 tons/day of CO/sub 2/ for use in an enhanced oil recovery (EOR) project in West Texas. Feed for the plant is flue gas from an adjacent electrical power generating station. Product CO/sub 2/ is pipelined from the recovery plant in a supercritical state at about 2,000 psig. The pilot plant demonstrated the ability of Dow Chemical's Gas Spec amine solvent to recover CO/sub 2/ from industrial flue gas, and confirmed that Procon/Dow's improved solvent adsorption system is effective in reducing the energy requirements.

St. Clair, J.H.; Simister, W.F.

1983-02-14T23:59:59.000Z

259

Fundamental mechanisms in flue gas conditioning. Quarterly report, October 1994--December 1994  

Science Conference Proceedings (OSTI)

This project is divided into four tasks. We developed our Management Plan in Task 1. Task 2, Evaluation of Mechanisms in FGD Sorbent and Ash Interactions, focused on characteristics of binary mixtures of these distinct powders. Task 3, Evaluation of Mechanisms in Conditioning Agents and Ash, was designed to examine effects of various conditioning agents on fine ash particles to determine mechanisms by which these agents alter physical properties of ash. We began Tasks 2 and 3 with an extensive literature search and assembly of existing theories. We completed this phase of the project with publication of two special Topical Reports. During the next phase of the project we analyzed a variety of fly ashes and fine powders in the laboratory. Pilot-scale evaluations were then performed to verify the results we obtained in these laboratory analyses. Under Task 4 we will issue our Final Report that will summarize the results of our laboratory and pilot-scale work and will also include a Flue Gas Conditioning Model. In our literature reviews reported in Topical Reports 1 and 2, we emphasized the roles adsorbed water can have in controlling bulk properties of powders. The experiments we performed were primarily designed to define the extent to which water affects key properties of ashes, powders, and mixtures of sorbents and ashes. We have recently completed a series of pilot-scale tests designed to determine the effects that adsorbed water has on fabric filtration and electrostatic precipitation of entrained fly ash particles in actual flue gas environments.

Snyder, T.R.

1995-01-16T23:59:59.000Z

260

Potential Agricultural Uses of Flue Gas Desulfurization Gypsum in the Northern Great Plains  

Science Conference Proceedings (OSTI)

Flue gas desulfurization gypsum (FGDG) is a byproduct from the combustion of coal for electrical energy production. Currently, FGDG is being produced by 15 electrical generating stations in Alabama, Florida, Indiana, Iowa, Kentucky, Ohio, North Carolina, South Carolina, Tennessee, Texas, and Wisconsin. Much of this byproduct is used in the manufacturing of wallboard. The National Network for Use of FGDG in Agriculture was initiated to explore alternative uses of this byproduct. In the northern Great Plains (North Dakota, South Dakota, and Montana), FGDG has the potential to be used as a Ca or S fertilizer, as an acid soil ameliorant, and for reclaiming or mitigating sodium-affected soils. Greater than 1.4 million Mg of FGDG could initially be used in these states for these purposes. Flue gas desulfurization gypsum can be an agriculturally important resource for helping to increase the usefulness of problem soils and to increase crop and rangeland production. Conducting beneficial use audits would increase the public awareness of this product and help identify to coal combustion electrical generating stations the agriculturally beneficial outlets for this byproduct.

DeSutter, T.M.; Cihacek, L.J. [North Dakota State University, Fargo, ND (United States). Department of Soil Science

2009-07-15T23:59:59.000Z

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Explaining the differential solubility of flue gas components in ionic liquids from first-principle calculations  

SciTech Connect

Flue gas is greatly responsible for acid rain formation and global warming. New generation ionic liquids (ILs) have potential in controlling the flue gas emissions, as they acquire high absorptivity for the component gases SO{sub 2}, CO{sub 2}, etc. The association of the IL-gas interactions to the absorptivity of gas molecules in ILs is, however, poorly understood. In this paper, we present a molecular level description of the interactions of ILs with SO{sub 2}, CO{sub 2}, and N{sub 2} and show its implications to the differential gas solubility. Our results indicate that the IL anion-gas interactions play a key role in deciding the gas solubility in ILs, particularly for polar gases such as SO{sub 2}. On the other hand, regular solution assumption applies to -2 solubility. In accordance with the previous theoretical and experimental findings, our results also imply that the IL anions dominate the interactions with gas molecules while the cations play a secondary role and the underlying fluid structures of the ILs remain unperturbed by the addition of gas molecules.

Prasad, B.R.; Senapati, S. [Indian Institute of Technology, Madras (India). Dept. of Biotechnology

2009-04-15T23:59:59.000Z

262

Mercury Speciation in Coal-Fired Power Plant Flue Gas-Experimental Studies and Model Development  

SciTech Connect

The overall goal of the project was to obtain a fundamental understanding of the catalytic reactions that are promoted by solid surfaces present in coal combustion systems and develop a mathematical model that described key phenomena responsible for the fate of mercury in coal-combustion systems. This objective was achieved by carefully combining laboratory studies under realistic process conditions using simulated flue gas with mathematical modeling efforts. Laboratory-scale studies were performed to understand the fundamental aspects of chemical reactions between flue gas constituents and solid surfaces present in the fly ash and their impact on mercury speciation. Process models were developed to account for heterogeneous reactions because of the presence of fly ash as well as the deliberate addition of particles to promote Hg oxidation and adsorption. Quantum modeling was used to obtain estimates of the kinetics of heterogeneous reactions. Based on the initial findings of this study, additional work was performed to ascertain the potential of using inexpensive inorganic sorbents to control mercury emissions from coal-fired power plants without adverse impact on the salability fly ash, which is one of the major drawbacks of current control technologies based on activated carbon.

Radisav Vidic; Joseph Flora; Eric Borguet

2008-12-31T23:59:59.000Z

263

Carbon Dioxide Removal from Flue Gas Using Microporous Metal Organic Frameworks  

SciTech Connect

UOP LLC, a Honeywell Company, in collaboration with Professor Douglas LeVan at Vanderbilt University (VU), Professor Adam Matzger at the University of Michigan (UM), Professor Randall Snurr at Northwestern University (NU), and Professor Stefano Brandani at the University of Edinburgh (UE), supported by Honeywell's Specialty Materials business unit and the Electric Power Research Institute (EPRI), have completed a three-year project to develop novel microporous metal organic frameworks (MOFs) and an associated vacuum-pressure swing adsorption (vPSA) process for the removal of CO{sub 2} from coal-fired power plant flue gas. The project leveraged the team's complementary capabilities: UOP's experience in materials development and manufacturing, adsorption process design and process commercialization; LeVan and Brandani's expertise in high-quality adsorption measurements; Matzger's experience in syntheis of MOFs and the organic components associated with MOFs; Snurr's expertise in molecular and other modeling; Honeywell's expertise in the manufacture of organic chemicals; and, EPRI's knowledge of power-generation technology and markets. The project was successful in that a selective CO{sub 2} adsorbent with good thermal stability and reasonable contaminant tolerance was discovered, and a low cost process for flue gas CO{sub 2} capture process ready to be evaluated further at the pilot scale was proposed. The team made significant progress toward the current DOE post-combustion research targets, as defined in a recent FOA issued by NETL: 90% CO{sub 2} removal with no more than a 35% increase in COE. The team discovered that favorable CO{sub 2} adsorption at more realistic flue gas conditions is dominated by one particular MOF structure type, M/DOBDC, where M designates Zn, Co, Ni, or Mg and DOBDC refers to the form of the organic linker in the resultant MOF structure, dioxybenzenedicarboxylate. The structure of the M/DOBDC MOFs consists of infinite-rod secondary building units bound by DOBDC resulting in 1D hexagonal pores about 11 angstroms in diameter. Surface areas range from 800 to 1500 sq m/g for the different MOFs. Mg/DOBDC outperformed all MOF and zeolite materials evaluated to date, with about 25 wt% CO{sub 2} captured by this MOF at flue gas conditions ({approx}0.13 atm CO{sub 2} pressure, 311K). In simulated flue gas without oxygen, the zero-length (ZLC) system was very useful in quickly simulating the effect of long term exposure to impurities on the MOFs. Detailed adsorption studies on MOF pellets have shown that water does not inhibit CO{sub 2} adsorption for MOFs as much as it does for typical zeolites. Moreover, some MOFs retain a substantial CO{sub 2} capacity even with a modest water loading at room temperature. Molecular modeling was a key activity in three areas of our earlier DOE/NETL-sponsored MOF-based research on CC. First, the team was able to effectively simulate CO{sub 2} and other gas adsorption isotherms for more than 20 MOFs, and the knowledge obtained was used to help predict new MOF structures that should be effective for CO{sub 2} adsorption at low pressure. The team also showed that molecular modeling could be utilized to predict the hydrothermal stability of a given MOF. Finally, the team showed that low moisture level exposure actually enhanced the CO{sub 2} adsorption performance of a particular MOF, HKUST-1.

David A Lesch

2010-06-30T23:59:59.000Z

264

Summary of Test Results from Babcock & Wilcox's 30 MWth Oxy-Coal Pilot Plant  

Science Conference Proceedings (OSTI)

If CO2 capture and storage (CCS) is to be implemented and play a role in keeping electricity prices affordable under proposed emission restrictions, its rate of progress must be accelerated. Demonstration plants need to be deployed in the short-term to allow the technology to evolve and become more efficient and cost effective. One way to reduce the costs of CCS from coal-fired power plants is by adopting oxy-combustion. With this technology, instead of using air, oxygen is mixed with recycled flue gas. ...

2009-09-30T23:59:59.000Z

265

Enhanced Elemental Mercury Removal from Coal-fired Flue Gas by Sulfur-chlorine Compounds  

SciTech Connect

Oxidation of Hg0 with any oxidant or converting it to a particle-bound form can facilitate its removal. Two sulfur-chlorine compounds, sulfur dichloride (SCl2) and sulfur monochloride (S2Cl2), were investigated as oxidants for Hg0 by gas phase reaction and by surface-involved reactions in the presence of flyash or activated carbon. The gas phase reaction rate constants between Hg0 and the sulfur/chlorine compounds were determined, and the effects of temperature and the main components in flue gases were studied. The gas phase reaction between Hg0 and SCl2 is shown to be more rapid than the gas phase reaction with chlorine, and the second order rate constant was 9.1(+-0.5) x 10-18 mL-molecules-1cdots-1 at 373oK. Nitric oxide (NO) inhibited the gas phase reaction of Hg0 with sulfur-chlorine compounds. The presence of flyash or powdered activated carbon in flue gas can substantially accelerate the reaction. The predicted Hg0 removal is about 90percent with 5 ppm SCl2 or S2Cl2 and 40 g/m3 of flyash in flue gas. The combination of activated carbon and sulfur-chlorine compounds is an effective alternative. We estimate that co-injection of 3-5 ppm of SCl2 (or S2Cl2) with 2-3 Lb/MMacf of untreated Darco-KB is comparable in efficiency to the injection of 2-3 Lb/MMacf Darco-Hg-LH. Extrapolation of kinetic results also indicates that 90percent of Hg0 can be removed if 3 Lb/MMacf of Darco-KB pretreated with 3percent of SCl2 or S2Cl2 is used. Unlike gas phase reactions, NO exhibited little effect on Hg0 reactions with SCl2 or S2Cl2 on flyash or activated carbon. Mercuric sulfide was identified as one of the principal products of the Hg0/SCl2 or Hg0/S2Cl2 reactions. Additionally, about 8percent of SCl2 or S2Cl2 in aqueous solutions is converted to sulfide ions, which would precipitate mercuric ion from FGD solution.

Chang, Shih-Ger; Yan, Nai-Qiang; Qu, Zan; Chi, Yao; Qiao, Shao-Hua; Dod, Ray; Chang, Shih-Ger; Miller, Charles

2008-07-02T23:59:59.000Z

266

Improved Recovery from Gulf of Mexico Reservoirs, Volume 4, Comparison of Methane, Nitrogen and Flue Gas for Attic Oil. February 14, 1995 - October 13, 1996. Final Report  

SciTech Connect

Gas injection for attic oil recovery was modeled in vertical sandpacks to compare the process performance characteristics of three gases, namely methane, nitrogen and flue gas. All of the gases tested recovered the same amount of oil over two cycles of gas injection. Nitrogen and flue gas recovered oil more rapidly than methane because a large portion of the methane slug dissolved in the oil phase and less free gas was available for oil displacement. The total gas utilization for two cycles of gas injection was somewhat better for nitrogen as compared to methane and flue gas. The lower nitrogen utilization was ascribed to the lower compressibility of nitrogen.

Wolcott, Joanne; Shayegi, Sara

1997-01-13T23:59:59.000Z

267

The utilization of flue gas desulfurization waste by-products in construction brick  

E-Print Network (OSTI)

Millions of tons of waste by-products from Texas coal burning plants are produced each year. Two common byproducts are the fuel ashes and calcium sulfate (gypsum). Fuel ashes result from the burning of coal. Gypsum is a byproduct of the air purification system, called Flue Gas Desulfurization (FGD). Abatement of these waste products is a growing concern, not only for the industry, but the environment as well. It is possible to produce a gypsum brick unit that can meet the engineering properties required by the Americans Society of Testing Materials (ASTM) standards by using these by-products. This can be accomplished at a cost less than the least expensive common fired clay brick that is used in construction operations. The gypsum brick can be manufactured using established methods that are currently in operation.

Berryman, Charles Wayne

1992-01-01T23:59:59.000Z

268

Development of a sorbent-based technology for control of mercury in flue gas  

Science Conference Proceedings (OSTI)

This paper presents results of research being, conducted at Argonne National Laboratory on the capture of elemental mercury in simulated flue gases by using dry sorbents. Experimental results from investigation of various sorbents and chemical additives for mercury control are reported. Of the sorbents investigated thus far, an activited-carbon-based sorbent impregnated with about 15% (by weight) of sulfur compound provided the best results. The key parameters affecting mercury control efficiency in a fixed-bed reactor, such as reactor loading, reactor temperature, sorbent size distribution, etc., were also studied, and the results ire presented. In addition to activated-carbon-based sorbents, a non-carbon-based sorbent that uses an inactive substrate treated with active chemicals is being developed. Preliminary, experimental results for mercury removal by this newly developed sorbent are presented.

Wu, Jiann M.; Huang, Hann S.; Livengood, C.D.

1996-03-01T23:59:59.000Z

269

Reclamation of abandoned surface coal mined land using flue gas desulfurization products  

SciTech Connect

Details are given of a field-scale research project where the Fleming site, in Ohio, of highly degraded and acid-forming abandoned surface coal-mined land, was reclaimed using a dry flue gas desulfurization product from an atmospheric fluidized bed combustion burner at a General Motors plant Pontiac, MI, which burned eastern Ohio coal and used dolomitic limestone for desulfurization. Plots were seeded with a mixture of grasses, wheat and clover, in 1994 and soil and water samples were analysed in 1995 and in 2009. It was found that FGD-treated plots promoted good regenerative growth, similar to that in plots using more concentrated re-soil material. The FGD treatment also greatly improved overall water quality. 3 figs., 4 tabs.

Chen, L.; Kost, D.; Dick, W.A. [Ohio State University, OH (United States)

2009-07-01T23:59:59.000Z

270

Hollow fiber adsorbents for CO{sub 2} removal from flue gas  

Science Conference Proceedings (OSTI)

The nation's pulverized coal infrastructure is aging, and implementation of current retrofit postcombustion capture methods is extremely expensive. This paper describes a technology based on hollow polymeric fibers with sorbent particles embedded in the porous fiber wall to enable postcombustion CO{sub 2} capture via a rapid temperature swing adsorption (RTSA) system. The system takes advantage of the hollow fiber morphology by passing cooling water through the bores during sorption to maximize sorption capacities and steam through the bores during desorption to desorb CO{sub 2} efficiently. The thin-walled hollow fibers offer the advantage of rapid heat and mass transport. To avoid mass transfer between the core and the fiber sheath, a dense lumen layer is used on the interior of the fiber wall. This system has advantages over competing technologies. Specifically, the fiber sorbent contactor minimizes flue gas pressure drop across the bed, while maximizing sorption efficiencies via rapid thermal cycles and low regenerative thermal requirements.

Lively, R.P.; Chance, R.R.; Kelley, B.T.; Deckman, H.W.; Drese, J.H.; Jones, C.W.; Koros, W.J. [Georgia Institute of Technology, Atlanta, GA (United States)

2009-08-15T23:59:59.000Z

271

Controllability analysis and decentralized control of a wet limestone flue gas desulfurization plant  

Science Conference Proceedings (OSTI)

Presently, decentralized feedback control is the only control strategy used in wet limestone flue gas desulfurization (WLFGD) plants. Proper tuning of this control strategy is becoming an important issue in WLFGD plants because more stringent SO{sub 2} regulations have come into force recently. Controllability analysis is a highly valuable tool for proper design of control systems, but it has not been applied to WLFGD plants so far. In this paper a decentralized control strategy is designed and applied to a WLFGD pilot plant taking into account the conclusions of a controllability analysis. The results reveal that good SO{sub 2} control in WLFGD plants can be achieved mainly because the main disturbance of the process is well-aligned with the plant and interactions between control loops are beneficial to SO{sub 2} control.

Perales, A.L.V.; Ortiz, F.J.G.; Ollero, P.; Gil, F.M. [University of Seville, Seville (Spain)

2008-12-15T23:59:59.000Z

272

By-product disposal from MSW incinerator flue gas cleaning systems  

Science Conference Proceedings (OSTI)

Waste incineration has been found to be an effective method of achieving significant volume reduction of Municipal Solid Waste (MSW) while at the same time allowing for energy recovery in the form of steam or electricity. Concern over potential air pollution from incinerators in the form of acid gases, heavy metals and dioxins has led to the application of Spray Dryer Absorption (SDA) flue gas cleaning systems to control these emissions. SDA has demonstrated high efficiencies in converting these air pollutants into a dry by-product for disposal. This has, in turn, led to concerns over potential secondary pollution from the disposal of these by-products. This paper presents a description of the SDA process and reviews disposal options for the SDA product. Product characteristics are given and results of leaching studies are presented. Comparisons between EPA's and TEP and TCLP procedures are presented. Results of dioxin measurements from the by-product are given.

Donnelly, J.R. (Joy Manufacturing Co., Los Angeles, CA (US)); Jons, E. (A/S Niro Atomizer, Copenhagen (DK))

1987-01-01T23:59:59.000Z

273

Ranking low cost sorbents for mercury capture from simulated flue gases  

Science Conference Proceedings (OSTI)

Coal fired utility boilers are the largest anthropogenic source of mercury release to the atmosphere, and mercury abatement legislation is already in place in the USA. The present study aimed to rank low cost mercury sorbents (char and activated carbon from the pyrolysis of scrap tire rubber and two coal fly ashes from UK power plants) against Norit Darco HgTM for mercury retention by using a novel bench-scale reactor. In this scheme, a fixed sorbent bed was tested for mercury capture efficiency from a simulated flue gas stream. Experiments with a gas stream of only mercury and nitrogen showed that while the coal ashes were the most effective in mercury capture, char from the pyrolysis of scrap tire rubber was as effective as the commercial sorbent Norit Darco HgTM. Tests conducted at 150{sup o}C, with a simulated flue gas mix that included N{sub 2}, NO, NO{sub 2}, CO{sub 2}, O{sub 2}, SO{sub 2} and HCl, showed that all the sorbents captured approximately 100% of the mercury in the gas stream. The introduction of NO and NO{sub 2} was found to significantly improve the mercury capture, possibly by reactions between NOx and the mercury. Since the sorbents' efficiency decreased with increasing test temperature, physical sorption could be the initial step in the mercury capture process. As the sorbents were only exposed to 64 ng of mercury in the gas stream, the mercury loadings on the samples were significantly less than their equilibrium capacities. The larger capacities of the activated carbons due to their more microporous structure were therefore not utilized. Although the sorbents have been characterized by BET surface area analysis and XRD analysis, further analysis is needed in order to obtain a more conclusive correlation of how the characteristics of the different sorbents correlate with the observed variations in mercury capture ability. 34 refs., 8 figs., 6 tabs.

H. Revata Seneviratne; Cedric Charpenteau; Anthe George; Marcos Millan; Denis R. Dugwell; Rafael Kandiyoti [Imperial College London, London (United Kingdom). Department of Chemical Engineering

2007-12-15T23:59:59.000Z

274

Advanced Flue Gas Desulfurization (AFGD) demonstration project: Volume 2, Project performance and economics. Final technical report  

SciTech Connect

The project objective is to demonstrate removal of 90--95% or more of the SO{sub 2} at approximately one-half the cost of conventional scrubbing technology; and to demonstrate significant reduction of space requirements. In this project, Pure Air has built a single SO{sub 2} absorber for a 528-MWe power plant. The absorber performs three functions in a single vessel: prequencher, absorber, and oxidation of sludge to gypsum. Additionally, the absorber is of a co- current design, in which the flue gas and scrubbing slurry move in the same direction and at a relatively high velocity compared to conventional scrubbers. These features all combine to yield a state- of-the-art SO{sub 2} absorber that is more compact and less expensive than conventional scrubbers. The project incorporated a number of technical features including the injection of pulverized limestone directly into the absorber, a device called an air rotary sparger located within the base of the absorber, and a novel wastewater evaporation system. The air rotary sparger combines the functions of agitation and air distribution into one piece of equipment to facilitate the oxidation of calcium sulfite to gypsum. Additionally, wastewater treatment is being demonstrated to minimize water disposal problems inherent in many high-chloride coals. Bituminous coals primarily from the Indiana, Illinois coal basin containing 2--4.5% sulfur were tested during the demonstration. The Advanced Flue Gas Desulfurization (AFGD) process has demonstrated removal of 95% or more of the SO{sub 2} while providing a commercial gypsum by-product in lieu of solid waste. A portion of the commercial gypsum is being agglomerated into a product known as PowerChip{reg_sign} gypsum which exhibits improved physical properties, easier flowability and more user friendly handling characteristics to enhance its transportation and marketability to gypsum end-users.

NONE

1996-04-30T23:59:59.000Z

275

Fundamental mechanisms in flue gas conditioning. Quarterly report, April--June 1994  

Science Conference Proceedings (OSTI)

This project is divided into four tasks. The author developed a Management Plan in Task 1. Task 2, Evaluation of Mechanisms in FGD Sorbent and Ash Interactions, focuses on characteristics of binary mixtures of these distinct powders. Task 3, Evaluation of Mechanisms in Conditioning Agents and Ash, is designed to examine effects of various conditioning agents on fine ash particles to determine mechanisms by which these agents alter physical properties of ash. The author began Tasks 2 and 3 with an extensive literature search and assembly of existing theories. He completed this phase of the project with publication of two special Topical Reports. During the past several quarters he performed analyses of the samples in the database. Pilot-scale evaluations have begun and will continue through the next two quarters. The author will include the results of laboratory and pilot-scale work performed under Tasks 2 and 3 in a Flue Gas Conditioning Model that will be issued under Task 4. The Final Report for the project will also be prepared under Task 4. In the literature reviews reported in Topical Reports 1 and 2, the author emphasized the roles adsorbed water can have in controlling bulk properties of powders. The experiments performed were primarily designed to define the extent to which water affects key properties of ashes, powders, and mixtures of sorbents and ashes. The author is currently performing a series of pilot-scale tests designed to determine the effects that absorbed water has on fabric filtration and electrostatic precipitation of entrained fly ash particles in actual flue gas environments.

Snyder, T.R.

1994-07-12T23:59:59.000Z

276

Pilot-plant technical assessment of wet flue gas desulfurization using limestone  

Science Conference Proceedings (OSTI)

An experimental study was performed on a countercurrent pilot-scale packed scrubber for wet flue gas desulfurization (FGD). The flow rate of the treated flue gas was around 300 Nm{sup 3}/h, so the pilot-plant capacity is one of the largest with respect to other published studies on a pilot-plant wet FGD. The tests were carried out at an SO{sub 2} inlet concentration of 2000 ppm by changing the recycle slurry pH to around 4.8 and the L/G ratio to between 7.5 and 15. Three types of limestone were tested, obtaining desulfurization efficiencies from 59 to 99%. We show the importance of choosing an appropriate limestone in order to get a better performance from the FGD plant. Thus, it is important to know the reactivity (on a laboratory scale) and the sorbent utilization (on a pilot-plant scale) in order to identify if a limestone is reactive enough and to compare it with another type. In addition, by using the transfer-unit concept, a function has been obtained for the desulfurization efficiency, using the L/G ratio and the recycle slurry pH as independent variables. The Ca/S molar ratio is related to these and to the SO{sub 2} removal efficiency. This function, together with a simplified function of the operation variable cost, allows us to determine the pair (L/G ratio and pH) to achieve the desired SO{sub 2} removal with the minimum operation cost. Finally, the variable operation costs between packed towers and spray scrubbers have been compared, using as a basis the pilot packed tower and the industrial spray column at the Compostilla Power Station's FGD plant (in Leon, Spain).

Ortiz, F.J.G.; Vidal, F.; Ollero, P.; Salvador, L.; Cortes, V.; Gimenez, A. [University of Seville, Seville (Spain)

2006-02-15T23:59:59.000Z

277

Sorbent Injection for Small ESP Mercury Control in Low Sulfur Eastern Bituminous Coal Flue Gas  

SciTech Connect

This project Final Report is submitted to the U.S. Department of Energy (DOE) as part of Cooperative Agreement DE-FC26-03NT41987, 'Sorbent Injection for Small ESP Mercury Control in Low Sulfur Eastern Bituminous Coal Flue Gas.' Sorbent injection technology is targeted as the primary mercury control process on plants burning low/medium sulfur bituminous coals equipped with ESP and ESP/FGD systems. About 70% of the ESPs used in the utility industry have SCAs less than 300 ft2/1000 acfm. Prior to this test program, previous sorbent injection tests had focused on large-SCA ESPs. This DOE-NETL program was designed to generate data to evaluate the performance and economic feasibility of sorbent injection for mercury control at power plants that fire bituminous coal and are configured with small-sized electrostatic precipitators and/or an ESP-flue gas desulfurization (FGD) configuration. EPRI and Southern Company were co-funders for the test program. Southern Company and Reliant Energy provided host sites for testing and technical input to the project. URS Group was the prime contractor to NETL. ADA-ES and Apogee Scientific Inc. were sub-contractors to URS and was responsible for all aspects of the sorbent injection systems design, installation and operation at the different host sites. Full-scale sorbent injection for mercury control was evaluated at three sites: Georgia Power's Plant Yates Units 1 and 2 [Georgia Power is a subsidiary of the Southern Company] and Reliant Energy's Shawville Unit 3. Georgia Power's Plant Yates Unit 1 has an existing small-SCA cold-side ESP followed by a Chiyoda CT-121 wet scrubber. Yates Unit 2 is also equipped with a small-SCA ESP and a dual flue gas conditioning system. Unit 2 has no SO2 control system. Shawville Unit 3 is equipped with two small-SCA cold-side ESPs operated in series. All ESP systems tested in this program had SCAs less than 250 ft2/1000 acfm. Short-term parametric tests were conducted on Yates Units 1 and 2 to evaluate the performance of low-cost activated carbon sorbents for removing mercury. In addition, the effects of the dual flue gas conditioning system on mercury removal performance were evaluated as part of short-term parametric tests on Unit 2. Based on the parametric test results, a single sorbent (e.g., RWE Super HOK) was selected for a 30-day continuous injection test on Unit 1 to observe long-term performance of the sorbent as well as its effects on ESP and FGD system operations as well as combustion byproduct properties. A series of parametric tests were also performed on Shawville Unit 3 over a three-week period in which several activated carbon sorbents were injected into the flue gas duct just upstream of either of the two Unit 3 ESP units. Three different sorbents were evaluated in the parametric test program for the combined ESP 1/ESP 2 system in which sorbents were injected upstream of ESP 1: RWE Super HOK, Norit's DARCO Hg, and a 62:38 wt% hydrated lime/DARCO Hg premixed reagent. Five different sorbents were evaluated for the ESP 2 system in which activated carbons were injected upstream of ESP 2: RWE Super HOK and coarse-ground HOK, Norit's DARCO Hg and DARCO Hg-LH, and DARCO Hg with lime injection upstream of ESP 1. The hydrated lime tests were conducted to reduce SO3 levels in an attempt to enhance the mercury removal performance of the activated carbon sorbents. The Plant Yates and Shawville studies provided data required for assessing carbon performance and long-term operational impacts for flue gas mercury control across small-sized ESPs, as well as for estimating the costs of full-scale sorbent injection processes.

Carl Richardson; Katherine Dombrowski; Douglas Orr

2006-12-31T23:59:59.000Z

278

Program on Technology Innovation: Galling and Sliding Wear Test Results for Candidate Hardfacing Alloys Manufactured by Power Metallurgy and Hot Isostatic Pressing (PM/HIP)  

Science Conference Proceedings (OSTI)

An alternative manufacturing method, powder metallurgy coupled with hot isostatic processing (PM/HIP), is being explored for the manufacture of large, pressure-retaining components that will be required to meet the demanding needs of nuclear, fossil, combined cycle, ultra-supercritical, and oxy-combustion power applications over the next few decades. Because of the inherent advantages of the PM/HIP process, there is the potential to integrate hardfacing materials into valve components, create ...

2013-07-31T23:59:59.000Z

279

Impact of supplemental firing of tire-derived fuel (TDF) on mercury species and mercury capture with the advanced hybrid filter in a western subbituminous coal flue gas  

Science Conference Proceedings (OSTI)

Pilot-scale experimental studies were carried out to evaluate the impacts of cofiring tire-derived fuel and a western subbituminous coal on mercury species in flue gas. Mercury samples were collected at the inlet and outlet of the Advanced Hybrid filter to determine mercury concentrations in the flue gas with and without TDF cofiring, respectively. Cofiring of TDF with a subbituminous coal had a significant effect on mercury speciation in the flue gas. With 100% coal firing, there was only 16.8% oxidized mercury in the flue gas compared to 47.7% when 5% TDF (mass basis) was fired and 84.8% when 10% TDF was cofired. The significantly enhanced mercury oxidation may be the result of additional homogeneous gas reactions between Hg{sup 0} and the reactive chlorine generated in the TDF-cofiring flue gas and the in situ improved reactivity of unburned carbon in ash by the reactive chlorine species. Although the cofiring of TDF demonstrated limited improvement on mercury-emission control with the Advanced Hybrid filter, it proved to be a very cost-effective mercury control approach for power plants equipped with wet or dry flue gas desulfurization (FGD) systems because of the enhanced mercury oxidation. 15 refs., 4 figs., 4 tabs.

Ye Zhuang; Stanley J. Miller [University of North Dakota, Grand Forks, ND (United States). Energy & Environmental Research Center

2006-05-15T23:59:59.000Z

280

ADVANCED FLUE GAS CONDITIONING AS A RETROFIT UPGRADE TO ENHANCE PM COLLECTION FROM COAL-FIRED ELECTRIC UTILITY BOILERS  

Science Conference Proceedings (OSTI)

The U.S. Department of Energy and ADA Environmental Solutions have begun a project to develop commercial flue gas conditioning additives. The objective is to develop conditioning agents that can help improve particulate control performance of smaller or under-sized electrostatic precipitators on utility coal-fired boilers. The new chemicals will be used to control both the electrical resistivity and the adhesion or cohesivity of the flyash. There is a need to provide cost-effective and safer alternatives to traditional flue gas conditioning with SO{sub 3} and ammonia. During the second reporting quarter for this project, design and development is continuing on an electrostatic tensiometer to measure cohesion of flyash layers. A dedicated test fixture to automate flyash electrical resistivity testing is also underway. Ancillary instrumentation to control gas humidification within these test fixtures is also under construction.

Kenneth E. Baldrey

2000-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

JV Task 5 - Evaluation of Residual Oil Fly Ash As A Mercury Sorbent For Coal Combustion Flue Gas  

SciTech Connect

The mercury adsorption capacity of a residual oil fly ash (ROFA) sample collected form Florida Power and Light Company's Port Everglades Power Plant was evaluated using a bituminous coal combustion flue gas simulator and fixed-bed testing protocol. A size-segregated (>38 {micro}g) fraction of ROFA was ground to a fine powder and brominated to potentially enhance mercury capture. The ROFA and brominated-ROFA were ineffective in capturing or oxidizing the Hg{sup 0} present in a simulated bituminous coal combustion flue gas. In contrast, a commercially available DARCO{reg_sign} FGD initially adsorbed Hg{sup 0} for about an hour and then catalyzed Hg{sup 0} oxidation to produce Hg{sup 2+}. Apparently, the unburned carbon in ROFA needs to be more rigorously activated in order for it to effectively capture and/or oxidize Hg{sup 0}.

Robert Patton

2006-12-31T23:59:59.000Z

282

Removal of CO{sub 2} from flue gases by algae. [Quarterly] technical report, March 1, 1993--May 31, 1993  

DOE Green Energy (OSTI)

The objective of this research program is to determine the feasibility of the alga Botryococcus braunii as a biocatalyst for the photosynthetic conversion of flue gas CO{sub 2} to hydrocarbons. The research program involves the determination of the biocatalytic characteristics of free and immobilized cultures of Botryococcus braunii in bench-scale studies, and the feasibility study and economic analysis of the Botryococcus braunii culture systems for the conversion of flue gas CO{sub 2} to hydrocarbons. The objective of the third quarter of this research program was to determine the growth and hydrogen formation characteristics of free and immobilized cells of Botryococcus braunii in bench-scale photobioreactors. Raceway and inclined surface type bioreactors were used for free cell and immobilized cell studies respectively. The free cell studies with air and CO{sub 2} enriched air [10% (v/v) CO{sub 2} in air] in media with and without NaHCO{sub 3} were conducted.

Akin, C.; Pradhan, S. [Inst. of Gas Technology, Chicago, IL (United States)

1993-09-01T23:59:59.000Z

283

Advanced Flue Gas Desulfurization (AFGD) Demonstration Project. Technical progress report No. 15, July 1, 1993--September 30, 1993  

Science Conference Proceedings (OSTI)

The goal of this project is to demonstrate that, by combining state-of-the-art technology, highly efficient plant operation and maintenance capabilities and by-product gypsum sales, significant reductions of SO{sub 2} emissions can be achieved at approximately one-half the life cycle cost of a conventional Flue Gas Desulfurization (FGD) system. Further, this emission reduction is achieved without generating solid waste and while minimizing liquid wastewater effluent. Basically, this project entails the design, construction and operation of a nominal 600 MWe AFGD facility to remove SO{sub 2} from coal-fired power plant flue gas at the Northern Indiana Public Service Company`s Bailly Generating Station.

Not Available

1994-08-01T23:59:59.000Z

284

ADVANCED FLUE GAS CONDITIONING AS A RETROFIT UPGRADE TO ENHANCE PM COLLECTION FROM COAL-FIRED ELECTRIC UTILITY BOILERS  

SciTech Connect

The U.S. Department of Energy and ADA Environmental Solutions are engaged in a project to develop commercial flue gas conditioning additives. The objective is to develop conditioning agents that can help improve particulate control performance of smaller or under-sized electrostatic precipitators on utility coal-fired boilers. The new chemicals will be used to control both the electrical resistivity and the adhesion or cohesivity of the fly ash. There is a need to provide cost-effective and safer alternatives to traditional flue gas conditioning with SO{sub 3} and ammonia. During this reporting quarter, progress was made in obtaining an industry partner for a long-term demonstration and in technology transfer activities. Engineering and equipment procurement activities related to the long-term demonstration were also completed.

Kenneth E. Baldrey

2001-10-01T23:59:59.000Z

285

JV Task 5 - Evaluation of Residual Oil Fly Ash As A Mercury Sorbent For Coal Combustion Flue Gas  

SciTech Connect

The mercury adsorption capacity of a residual oil fly ash (ROFA) sample collected form Florida Power and Light Company's Port Everglades Power Plant was evaluated using a bituminous coal combustion flue gas simulator and fixed-bed testing protocol. A size-segregated (>38 {micro}g) fraction of ROFA was ground to a fine powder and brominated to potentially enhance mercury capture. The ROFA and brominated-ROFA were ineffective in capturing or oxidizing the Hg{sup 0} present in a simulated bituminous coal combustion flue gas. In contrast, a commercially available DARCO{reg_sign} FGD initially adsorbed Hg{sup 0} for about an hour and then catalyzed Hg{sup 0} oxidation to produce Hg{sup 2+}. Apparently, the unburned carbon in ROFA needs to be more rigorously activated in order for it to effectively capture and/or oxidize Hg{sup 0}.

Robert Patton

2006-12-31T23:59:59.000Z

286

STATEMENT OF CONSIDERATIONS REQUEST BY PRAXAIR INC. FOR AN ADVANCE WAIVER OF  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

PRAXAIR INC. FOR AN ADVANCE WAIVER OF PRAXAIR INC. FOR AN ADVANCE WAIVER OF DOMESTIC AND FOREIGN INVEN"nON RIGHTS UNDER DOE COOPERATIVE AGREEMENT NO. DE-FC26-07NT43088, W(A)-2010-049; CH-1576 The Petitioner, Praxair, Inc. (Praxair) was awarded a cooperative agreement from the Department of Energy for the performance of work entitled, "OTM Based Oxy-Combustion for C02 Capture from Coal Power Plants." The purpose of the cooperative agreement is to develop an optimum process configuration for integrating oxygen transport membranes (OTMs) in a coa power plant with C02 capture. The OTM technology replaces conventional cryogenic air separation technology for oxygen supply in coal gasification or oxy-combustion processes and has the potential to significantly reduce the costs associated with C02 capture from coal power plants.

287

Innovative Carbon Dioxide Sequestration from Flue Gas Using an In-Duct Scrubber Coupled with Alkaline Clay Mineralization  

NLE Websites -- All DOE Office Websites (Extended Search)

Innovative Carbon Dioxide Sequestration Innovative Carbon Dioxide Sequestration from Flue Gas Using an In-Duct Scrubber Coupled with Alkaline Clay Mineralization Background The United States Department of Energy (DOE) is leading an effort to find novel approaches to reduce carbon dioxide (CO 2 ) emissions from industrial sources. The Industrial Carbon Capture and Sequestration (ICCS) program is funded by the American Recovery and Reinvestment Act (ARRA) to encourage development of processes that

288

Evaluation of the Origin of Dissolved Organic Carbon and the Treatability of Mercury in Flue Gas Desulfurization Wastewater  

Science Conference Proceedings (OSTI)

Regulations for reducing the dissolved mercury (Hg) concentrations in wastewater discharged by electric generating power plants are becoming more stringent via federal regulatory limits proposed by the EPA and regulatory limits set by select states. Data obtained in a previous EPRI study conducted in 2009 suggested a potential negative impact of dissolved organic carbon (DOC) and iodide concentrations present in flue gas desulfurization (FGD) wastewater on mercury treatability (EPRI report 1019867). ...

2013-12-17T23:59:59.000Z

289

Corrosion in Wet Flue Gas Desulfurization (FGD) Systems: Technical Root Cause Analysis of Internal Corrosion on Wet FGD Alloy Absorbers  

Science Conference Proceedings (OSTI)

State-of-the-art flue gas desulfurization (FGD) technologies have been or are being installed on most large coal-fired electric generating units in response to new regulatory emission requirements. Aggressive corrosion has been noted in some of these systems, presumably from the low pH, high chloride environments created in the FGD process. There exists a plethora of material systems (metallic, organic, plastics, coating, and so forth) available to construct these systems, but, because of cost, fabricabi...

2012-04-30T23:59:59.000Z

290

JV Task 124 - Understanding Multi-Interactions of SO3, Mercury, Selenium, and Arsenic in Illinois Coal Flue Gas  

Science Conference Proceedings (OSTI)

This project consisted of pilot-scale combustion testing with a representative Illinois basin coal to explore the multi-interactions of SO{sub 3}, mercury, selenium and arsenic. The parameters investigated for SO{sub 3} and mercury interactions included different flue gas conditions, i.e., temperature, moisture content, and particulate alkali content, both with and without activated carbon injection for mercury control. Measurements were also made to track the transformation of selenium and arsenic partitioning as a function of flue gas temperature through the system. The results from the mercury-SO{sub 3} testing support the concept that SO{sub 3} vapor is the predominant factor that impedes efficient mercury removal with activated carbon in an Illinois coal flue gas, while H{sub 2}SO{sub 4} aerosol has less impact on activated carbon injection performance. Injection of a suitably mobile and reactive additives such as sodium- or calcium-based sorbents was the most effective strategy tested to mitigate the effect of SO{sub 3}. Transformation measurements indicate a significant fraction of selenium was associated with the vapor phase at the electrostatic precipitator inlet temperature. Arsenic was primarily particulate-bound and should be captured effectively with existing particulate control technology.

Ye Zhuang; Christopher Martin; John Pavlish

2009-03-31T23:59:59.000Z

291

Decarb/Desal: Separation of Carbon Dioxide from Flue Gas with Simultaneous Fresh Water Production  

Science Conference Proceedings (OSTI)

If fossil fuels continue to be a major part of the world's energy supply, effective means must be developed to deal with the carbon emissions. Geologic sequestration of supercritical CO{sub 2} is expected to play a major role in mitigating this problem. Separating carbon dioxide from other gases is the most costly aspect of schemes for geologic sequestration. That cost is driven by the complexity and energy intensity of current chemical-stripping methods for separating carbon dioxide. Our experience in water treatment technology indicated that an entirely new approach could be developed, taking advantage of water's propensity to separate gases that ionize in water (like CO{sub 2}) from those that do not (like N{sub 2}). Even though water-based systems might not have the extreme selectivity of chemicals like substituted amines used in industrial systems today, they have the potential to tolerate NO{sub x}, SO{sub x}, and particulates while also producing clean drinking water as a valuable byproduct. Lower capital cost, broader range of applicability, environmental friendliness, and revenue from a second product stream give this approach the potential to significantly expand the worldwide application of carbon separation for geologic sequestration. Here we report results for separation of CO{sub 2} from flue gas by two methods that simultaneously separate carbon dioxide and fresh water: ionic pumping of carbonate ions dissolved in water, and thermal distillation. The ion pumping method dramatically increases dissolved carbonate ion in solution and hence the overlying vapor pressure of CO{sub 2} gas, allowing its removal as a pure gas. We have used two common water treatment methods to drive the ion pumping approach, reverse osmosis and electrodialysis to produce pure CO{sub 2}. This novel approach to increasing the concentration of the extracted gas permits new approaches to treating flue gas, because the slightly basic water used as the extraction medium is impervious to trace acid gases that destroy existing solvents, and no pre-separation is necessary. Thermal distillation uses boiling water to steam strip solid sorbents - the steam is recovered as fresh water. We anticipate that our method will compete favorably with current chemical stripping systems used for CO{sub 2} separation at power plants, which incur a 35% energy penalty. Thus we expect to offer a dramatically improved solution for removing carbon from hydrocarbon combustion. Our method can be demonstrated on small sources, which will enable us to conduct the demonstrations required to build confidence in the method. If successful, we will be in a position to advance a follow-on proposal for a demonstration at the 10-MW scale.

Aines, R; Bourcier, W

2009-10-21T23:59:59.000Z

292

Cliffside 6 integrated emissions control system  

Science Conference Proceedings (OSTI)

The article takes an inside look into the environmental hardware going into one of the highest profile coal-fired power plants projects in the US, a new 800 MW supercritical coal-fired facility at Cliffside, NC, Unit C6. This is currently under construction and scheduled to be in commercial service in 2012. To evaluate the alternative air quality control system (AQCS) options, Duke Energy established a cross-functional team and used a decision analysis process to select the 'best balanced choice'. Alstom's integrated AQCS which combines dry and wet flue gas desulfurization systems was the best balanced choice. Replacing an ESP with a spray dryer absorber achieved major cost savings and eliminated the need for wastewater treatment. 1 ref., 2 photos.

McGinnis, D.G.; Rader, P.C.; Gansley, R.R.; Wang, W. [Duke Energy, Charlotte, NC (United States)

2009-04-15T23:59:59.000Z

293

Effect of flue gas impurities on the process of injection and storage of carbon dioxide in depleted gas reservoirs  

E-Print Network (OSTI)

Previous experiments - injecting pure CO2 into carbonate cores - showed that the process is a win-win technology, sequestrating CO2 while recovering a significant amount of hitherto unrecoverable natural gas that could help defray the cost of CO2 sequestration. In this thesis, I report my findings on the effect of flue gas ??impurities?? on the displacement of natural gas during CO2 sequestration, and results on unconfined compressive strength (UCS) tests to carbonate samples. In displacement experiments, corefloods were conducted at 1,500 psig and 70??C, in which flue gas was injected into an Austin chalk core containing initially methane. Two types of flue gases were injected: dehydrated flue gas with 13.574 mole% CO2 (Gas A), and treated flue gas (N2, O2 and water removed) with 99.433 mole% CO2 (Gas B). The main results of this study are as follows. First, the dispersion coefficient increases with concentration of ??impurities??. Gas A exhibits the largest dispersion coefficients, 0.18-0.25 cm2/min, compared to 0.13-0.15 cm2/min for Gas B, and 0.15 cm2/min for pure CO2. Second, recovery of methane at breakthrough is relatively high, ranging from 86% OGIP for pure CO2, 74-90% OGIP for Gas B, and 79-81% for Gas A. Lastly, injection of Gas A would sequester the least amount of CO2 as it contains about 80 mole% nitrogen. From the view point of sequestration, Gas A would be least desirable while Gas B appears to be the most desirable as separation cost would probably be cheaper than that for pure CO2 with similar gas recovery. For UCS tests, corefloods were conducted at 1,700 psig and 65??C in such a way that the cell throughput of CO2 simulates near-wellbore throughput. This was achieved through increasing the injection rate and time of injection. Corefloods were followed by porosity measurement and UCS tests. Main results are presented as follows. First, the UCS of the rock was reduced by approximately 30% of its original value as a result of the dissolution process. Second, porosity profiles of rock samples increased up to 2.5% after corefloods. UCS test results indicate that CO2 injection will cause weakening of near-wellbore formation rock.

Nogueira de Mago, Marjorie Carolina

2005-08-01T23:59:59.000Z

294

Evaluation of BOC'S Lotox Process for the Oxidation of Elemental Mercury in Flue Gas from a Coal-Fired Boiler  

SciTech Connect

Linde's Low Temperature Oxidation (LoTOx{trademark}) process has been demonstrated successfully to remove more than 90% of the NOx emitted from coal-fired boilers. Preliminary findings have shown that the LoTOx{trademark} process can be as effective for mercury emissions control as well. In the LoTOx{trademark} system, ozone is injected into a reaction duct, where NO and NO{sub 2} in the flue gas are selectively oxidized at relatively low temperatures and converted to higher nitrogen oxides, which are highly water soluble. Elemental mercury in the flue gas also reacts with ozone to form oxidized mercury, which unlike elemental mercury is water-soluble. Nitrogen oxides and oxidized mercury in the reaction duct and residual ozone, if any, are effectively removed in a wet scrubber. Thus, LoTOx{trademark} appears to be a viable technology for multi-pollutant emission control. To prove the feasibility of mercury oxidation with ozone in support of marketing LoTOx{trademark} for multi-pollutant emission control, Linde has performed a series of bench-scale tests with simulated flue gas streams. However, in order to enable Linde to evaluate the performance of the process with a flue gas stream that is more representative of a coal-fired boiler; one of Linde's bench-scale LoTOx{trademark} units was installed at WRI's combustion test facility (CTF), where a slipstream of flue gas from the CTF was treated. The degree of mercury and NOx oxidation taking place in the LoTOx{trademark} unit was quantified as a function of ozone injection rates, reactor temperatures, residence time, and ranks of coals. The overall conclusions from these tests are: (1) over 80% reduction in elemental mercury and over 90% reduction of NOx can be achieved with an O{sub 3}/NO{sub X} molar ratio of less than two, (2) in most of the cases, a lower reactor temperature is preferred over a higher temperature due to ozone dissociation, however, the combination of both low residence time and high temperature proved to be effective in the oxidation of both NOx and elemental mercury, and (3) higher residence time, lower temperature, and higher molar ratio of O{sub 3}/NOx contributed to the highest elemental mercury and NOx reductions.

Khalid Omar

2008-04-30T23:59:59.000Z

295

CO2 separation from flue gas using hollow fiber membrane contactors  

NLE Websites -- All DOE Office Websites (Extended Search)

Research on CO Research on CO 2 Separation from Flue Gas Prof. Mengxiang Fang State Key Laboratory of Clean Energy Utilization, Zhejiang University, China Global CO 2 Emissions Country CO 2 Emission (MtCO2) 1990 2003 2004 2010 USA 4,989 5,800 5,923 6,156 China 2,241 3,898 4,707 6,432 Russia 2,334 1,602 1,685 1,840 Japan 1,015 1,244 1,262 1,260 World 21,246 25,508 26,922 30,670 Source: Energy Information Administration/International Energy Outlook 2004 with High Oil Price Case CO 2 Emission in China Year Total Coal Petroleum Natural Gas Mt CO2 Mtc % Mtc % Mtc % 1990 2,241 1,886 84.2 325 14.5 30 1.34 2003 3,898 3,117 80.0 711 18.2 70 1.80 2004 4,707 3,809 80.9 816 17.3 83 1.76 2010 6,432 5,103 79.3 1,151 17.9 178 2.76 2015 7,376 5,946 80.6 1,184 16.1 246 3.33 Source: Energy Information Administration/International Energy Outlook 2004 with High Oil Price Case.

296

Investigation of a mercury speciation technique for flue gas desulfurization materials  

Science Conference Proceedings (OSTI)

Most of the synthetic gypsum generated from wet flue gas desulfurization (FGD) scrubbers is currently being used for wallboard production. Because oxidized mercury is readily captured by the wet FGD scrubber, and coal-fired power plants equipped with wet scrubbers desire to benefit from the partial mercury control that these systems provide, some mercury is likely to be bound in with the FGD gypsum and wallboard. In this study, the feasibility of identifying mercury species in the FGD gypsum and wallboard samples was investigated using a large sample size thermal desorption method and samples from power plants in Pennsylvania. Potential candidates of pure mercury standards including mercuric chloride, mercurous chloride, mercury oxide, mercury sulfide, and mercuric sulfate were analyzed to compare their results with those obtained from FGD gypsum and dry wallboard samples. Although any of the thermal evolutionary curves obtained from these pure mercury standards did not exactly match with those of the FGD gypsum and wallboard samples, it was identified that Hg{sub 2}Cl{sub 2} and HgCl{sub 2} could be candidates. An additional chlorine analysis from the gypsum and wallboard samples indicated that the chlorine concentrations were approximately 2 orders of magnitude higher than the mercury concentrations, suggesting possible chlorine association with mercury. 21 refs., 5 figs., 3 tabs.

Lee, J.Y.; Cho K.; Cheng L.; Keener, T.C.; Jegadeesan G.; Al-Abed, S.R. [University of Cincinnati, Cincinnati, OH (United States). Department of Chemical and Materials Engineering

2009-08-15T23:59:59.000Z

297

Recycle/reuse of boiler chemical cleaning wastes in wet limestone flue gas desulfurization (FGD) systems  

Science Conference Proceedings (OSTI)

Boiler chemical cleaning wastes (BCCW) are generated by the periodic waterside cleaning of utility boilers to remove metallic deposits from boiler tube surfaces. Depending on boiler metallurgy, BCCW generally contain high concentrations of iron and copper or both, as well as other heavy metals such as chromium, lead, nickel, and zinc. BCCW treatment and disposal methods include precipitation, coponding in an ash pond, evaporation in the fireside of an operating boiler (for organic solvents), and contracted off-site disposal. Depending on the type of BCCW chemical treatment methods achieve varying degrees of success. BCCW which contain organic chelating agents can be especially difficult to treat to national pollutant discharge elimination system (NPDES) limits (1 mg/L for both iron and copper) with conventional lime precipitation.Research is being done to evaluate different BCCW treatment and disposal methods. One waste management option under consideration is reuse of BCCW in utility wet flue gas desulfurization (FGD) systems. To investigate this option, a series of laboratory tests were performed in which five different types of BCCW were added to the reaction tank of EPRI's bench-scale wet limestone FGD system. This paper presents the results and conclusions from this study.

Stohs, M.; Owens, D.R. (Radian Corp. (US)); Micheletti, W. (Electric Power Research Inst., Palo Alto, CA (USA))

1988-01-01T23:59:59.000Z

298

CO.sub.2 separation from low-temperature flue gases  

DOE Patents (OSTI)

Two methods are provide for the separation of carbon dioxide from the flue gases. The first method utilizes a phase-separating moiety dissolved in an aqueous solution of a basic moiety to capture carbon dioxide. The second method utilizes a phase-separating moiety as a suspended solid in an aqueous solution of a basic moiety to capture carbon dioxide. The first method takes advantage of the surface-independent nature of the CO.sub.2 absorption reactions in a homogeneous aqueous system. The second method also provides permanent sequestration of the carbon dioxide. Both methods incorporate the kinetic rate enhancements of amine-based scrubbing while eliminating the need to heat the entire amine solution (80% water) in order to regenerate and release CO.sub.2. Both methods also take advantage of the low-regeneration temperatures of CO.sub.2-bearing mineral systems such as Na.sub.2CO.sub.3/NaHCO.sub.3 and K.sub.2CO.sub.3/KHCO.sub.3.

Dilmore, Robert (Irwin, PA); Allen, Douglas (Salem, MA); Soong, Yee (Monroeville, PA); Hedges, Sheila (Bethel Park, PA)

2010-11-30T23:59:59.000Z

299

Fundamental mechanisms in flue gas conditioning. Quarterly report, January 1992--March 1992  

Science Conference Proceedings (OSTI)

This project is divided into four tasks. The Management Plan was developed in task 1. Task 2, Evaluation of Mechanisms in FGD Sorbent and Ash Interactions, focuses on the characteristics of binary mixtures of these distinct powders. Task 3, Evaluation of Mechanisms in Conditioning Agents and Ash, is designed to examine the effects of various conditioning agents on fine ash particles to determine the mechanisms by which these agents alter the physical properties of the ash. Tasks 2 and 3 began with an extensive literature search and the assembly of existing theories. This phase of the project is now complete. During the past quarter, initial preparations of laboratory equipment for laboratory testing have been made. A plan for initial laboratory tests has been submitted to the Project Manager for review. Laboratory testing will commence once these laboratory plans have been formally approved. The results of the work performed under task 2 and 3 will be included in a Flue Gas Conditioning Model that will be issued under task 4. The Final Report for the project will also be prepared under task 4.

Snyder, T.R.; Robinson, M.S.; Bush, P.V.

1992-04-27T23:59:59.000Z

300

Fundamental mechanisms in flue gas conditioning. Quarterly report, September 1991--December 1991  

Science Conference Proceedings (OSTI)

This project is divided into four tasks. Task 1 is the Development of a Management Plan. Task 2, Evaluation of Mechanisms in FGD Sorbent and Ash Interactions, focuses on the characteristics of binary mixtures of these distinct powders. Task 3, Evaluation of Mechanisms in Conditioning Agents and Ash, is designed to examine the effects of various conditioning agents on fine ash particles to determine the mechanisms by which these agents alter the physical properties of the ash. Tasks 2 and 3 began with an extensive literature search and the assembly of existing theories. The results of the work performed under Tasks 2 and 3 will be included in a Flue Gas Conditioning Model that will be issued under Task 4. The Final Report for the project will also be prepared under Task 4. This quarterly report covers four months in order to synchronize the reporting periods for this project with US Government quarters. Work performed on the project during the past quarter consisted almost entirely of the review of literature pertaining to the objectives of Tasks 2 and 3. The primary results of that review are discussed at length in Topical Reports 1 and 2, submitted January 9, 1992. As a consequence of the work described in the topical reports, several of the project`s Measures of Success that were described in the first quarterly report have been achieved. This quarterly report will discuss these achievements.

Snyder, T.R.

1992-01-23T23:59:59.000Z

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
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301

Grid Integration  

SciTech Connect

Summarizes the goals and activities of the DOE Solar Energy Technologies Program efforts within its grid integration subprogram.

Not Available

2008-09-01T23:59:59.000Z

302

ISSN 1537-744X; doi:10.1100/2011/756264 Measurement of Mercury in Flue Gas Based on an Aluminum Matrix Sorbent  

E-Print Network (OSTI)

The measurement of total mercury in flue gas based on an economical aluminum matrix sorbent was developed in this paper. A sorbent trap consisted of three tubes was employed to capture Hg from flue gas. Hg trapped on sorbent was transferred into solution by acid leaching and then detected by CVAAS. Hg adsorbed on sorbent was recovered completely by leaching process. The 87.7 % recovery of Hg in flue gas by tube 1 and tube 2 was obtained on the equipment of coal combustion and sampling in lab. In order to evaluate the ability to recover and accurately quantify Hg 0 on the sorbent media, the analytical bias test on tube 3 spiked with Hg 0 was also performed and got the average recovery of 97.1%. Mercury measurements based on this method were conducted for three coal-fired power plants in China. The mercury in coal is distributed into bottom ash, electrostatic precipitator (ESP) ash, wet flue gas desulfurization (WFGD) reactant, and flue gas, and the relative distribution varied depending on factors such as the coal type and the operation conditions of plants. The mercury mass balances of three plants were also calculated which were 91.6%, 77.1%, and 118%, respectively. The reliability of this method was verified by the Ontario Hydro (OH) method either in lab or in field.

Juan Wang; Wei Xu; Xiaohao Wang; Wenhua Wang

2011-01-01T23:59:59.000Z

303

Combined homo- and heterogeneous model for mercury speciation in pulverized fuel combustion flue gases  

SciTech Connect

A new model is developed to predict Hg{sup 0}, Hg{sup +}, Hg{sup 2+}, and Hg{sub p} in the post-combustion zone upstream of a particulate control device (PCD) in pulverized coal-fired power plants. The model incorporates reactions of mercury with chlorinating agents (HCl) and other gaseous species and simultaneous adsorption of oxidized mercury (HgCl{sub 2}) on fly ash particles in the cooling of flue gases. The homogeneous kinetic model from the literature has been revised to understand the effect of the NO + OH + M {longleftrightarrow} HONO + M reaction on mercury oxidation. Because it is a pressure-dependent reaction, the choice of proper reaction rates was very critical. It was found that mercury oxidation reduces from 100 to 0% while going from high- to low-pressure limit rates with 100 ppmv NO. The heterogeneous model describes selective in-duct Langmuir-Hinshelwood adsorption of mercury chloride on ash particles. The heterogeneous model has been built using Fortran and linked to Chemkin 4.0. The final predictions of elemental, oxidized, and particulate mercury were compared to mercury speciation from power plant data. Information collection request (ICR) data were used for this comparison. The model results follow very similar trends compared to those of the plant data; however, quantitative deviation was considerable. These deviations are due to the errors in the measurement of mercury upstream of PCD, lack of adsorption kinetic data, accurate homogeneous reaction mechanisms, and certain modeling assumptions. The model definitely follows a new approach for the prediction of mercury speciation, and further refinement will improve the model significantly. 43 refs., 1 figs., 6 tabs.

Shishir P. Sable; Wiebren de Jong; Hartmut Spliethoff [Delft University Technology, Delft (Netherlands). Section Energy Technology, Department of Process and Energy

2008-01-15T23:59:59.000Z

304

Confounding effects of aqueous-phase impinger chemistry on apparent oxidation of mercury in flue gases  

SciTech Connect

Gas-phase reactions between elemental mercury and chlorine are a possible pathway to producing oxidized mercury species such as mercuric chloride in combustion systems. This study examines the effect of the chemistry of a commonly used sample conditioning system on apparent and actual levels of mercury oxidation in a methane-fired, 0.3 kW, quartz-lined reactor in which gas composition (HCl, Cl{sub 2}, NOx, SO{sub 2}) and quench rate were varied. The sample conditioning system included two impingers in parallel: one containing an aqueous solution of KCl to trap HgCl{sub 2}, and one containing an aqueous solution of SnCl{sub 2} to reduce HgCl{sub 2} to elemental mercury (Hg{sup 0}). Gas-phase concentrations of Cl{sub 2} as low as 1.5 ppmv were sufficient to oxidize a significant fraction of the elemental mercury in the KCl impinger via the hypochlorite ion. Furthermore, these low, but interfering levels of Cl{sub 2} appeared to persist in flue gases from several doped rapidly mixed flames with varied post flame temperature quench rates. The addition of 0.5 wt% sodium thiosulfate to the KCl solution completely prevented the oxidation from occurring in the impinger. The addition of thiosulfate did not inhibit the KCl impinger's ability to capture HgCl{sub 2}. The effectiveness of the thiosulfate was unchanged by NO or SO{sub 2}. These results bring into question laboratory scale experimental data on mercury oxidation where wet chemistry was used to partition metallic and oxidized mercury without the presence of sufficient levels of SO{sub 2}. 23 refs., 5 figs., 1 tab.

Brydger Cauch; Geoffrey D. Silcox; Joann S. Lighty; Jost O.L. Wendt; Andrew Fry; Constance L. Senior [University of Utah, Salt Lake City, UT (United States). Department of Chemical Engineering

2008-04-01T23:59:59.000Z

305

Characteristics and reactivity of rapidly hydrated sorbent for semidry flue gas desulfurization  

Science Conference Proceedings (OSTI)

The semidry flue gas desulfurization (FGD) process has many advantages over the wet FGD process for moving sulfur dioxide emissions from pulverized coal-fired power plants. Semidry FGD with a rapidly hydrated sorbent was studied in a pilot-scale circulating fluidized bed (CFB) experimental facility. The sorbent was made from lumps of lime and coal fly ash. The desulfurization efficiency was measured for various operating parameters, including the sorbent recirculation rate and the water spray method. The experimental results show that the desulfurization efficiencies of the rapidly hydrated sorbent were 1.5-3.0 times higher than a commonly used industrial sorbent for calcium to sulfur molar ratios from 1.2 to 3.0, mainly due to the higher specific surface area and pore volume. The Ca(OH){sub 2} content in the cyclone separator ash was about 2.9% for the rapidly hydrated sorbent and was about 0.1% for the commonly used industrial sorbent, due to the different adhesion between the fine Ca(OH){sub 2} particles and the fly ash particles, and the low cyclone separation efficiency for the fine Ca(OH){sub 2} particles that fell off the sorbent particles. Therefore the actual recirculation rates of the active sorbent with Ca(OH){sub 2} particles were higher for the rapidly hydrated sorbent, which also contributed to the higher desulfurization efficiency. The high fly ash content in the rapidly hydrated sorbent resulted in good operating stability. The desulfurization efficiency with upstream water spray was 10-15% higher than that with downstream water spray. 20 refs., 7 figs., 1 tab.

Jie Zhang; Changfu You; Suwei Zhao; Changhe Chen; Haiying Qi [Tsinghua University, Beijing (China). Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Thermal Engineering

2008-03-01T23:59:59.000Z

306

CO{sub 2} Capture from Flue Gas Using Solid Molecular Basket Sorbents  

SciTech Connect

The objective of this project is to develop a new generation of solid, regenerable polymeric molecular basket sorbent (MBS) for more cost-efficient capture and separation of CO{sub 2} from flue gas of coal-fired power plants. The primary goal is to develop a cost-effective MBS sorbent with better thermal stability. To improve the cost-effectiveness of MBS, we have explored commercially available and inexpensive support to replace the more expensive mesoporous molecular sieves like MCM-41 and SBA- 15. In addition, we have developed some advanced sorbent materials with 3D pore structure such as hexagonal mesoporous silica (HMS) to improve the CO{sub 2} working capacity of MBS, which can also reduce the cost for the whole CO{sub 2} capture process. During the project duration, the concern regarding the desorption rate of MBS sorbents has been raised, because lower desorption rate increases the desorption time for complete regeneration of the sorbent which in turn leads to a lower working capacity if the regeneration time is limited. Thus, the improvement in the thermal stability of MBS became a vital task for later part of this project. The improvement in the thermal stability was performed via increasing the polymer density either using higher molecular weight PEI or PEI cross-linking with an organic compound. Moreover, we have used the computational approach to estimate the interaction of CO{sub 2} with different MBSs for the fundamental understanding of CO{sub 2} sorption, which may benefit the development, design and modification of the sorbents and the process.

Fillerup, Eric; Zhang, Zhonghua; Peduzzi, Emanuela; Wang, Dongxiang; Guo, Jiahua; Ma, Xiaoliang; Wang, Xiaoxing; Song, Chunshan

2012-08-31T23:59:59.000Z

307

Removal of CO{sub 2} from flue gases by algae. Final technical report, September 1, 1992--August 31, 1993  

SciTech Connect

The objective of this research program is to determine the feasibility of the alga Botryococcus braunii as a biocatalyst for the photosynthetic conversion of flue gas CO{sub 2} to hydrocarbons. Free and immobilized cells of Botryococcus braunii were grown in aqueous medium supplemented with nitrogen, phosphorus and mineral nutrients. Air and CO{sub 2} enriched air [10% to 15% (V/V) CO{sub 2}] in the gas phase and 0.2% to 2% NaHCO{sub 3} in the liquid medium served as the carbon source. Growth and hydrocarbon formation characteristics of free and immobilized cultures of Botryococcus braunii were determined in bench-scale photobioreactors. Technical and economic feasibility of the conversion of flue gas CO{sub 2} to hydrocarbons by Botryococcus braunii culture systems was evaluated. In free cell systems, the hexane extractable oil productivity was about 15 to 37 grams of oil per 100 grams of cell dry weight. In immobilized cell systems, the oil production ranged between 5% and 47% at different immobilization systems and immobilized surface locations, with an average of 19% of cell biomass dry weight. The feasibility and economic evaluation estimated the cost of oil produced from flue gas CO{sub 2} by algae to range between $45 and $75 per barrel assuming that a hydrocarbon yield of about 50% of the biomass weight is achievable and a credit of $60 per ton of carbon removed is available. A future research program leading to development of a multistage process, consisting of closed systems for heavy inoculum buildup followed by lower cost open systems for oil production is recommended.

Akin, C.; Maka, A.; Patel, S.; Conrad, J. [Inst. of Gas Technology, Chicago, IL (United States); Benemann, J.

1993-12-31T23:59:59.000Z

308

Full-Scale Testing of a Mercury Oxidation Catalyst Upstream of a Wet Flue Gas Desulfurization System  

Science Conference Proceedings (OSTI)

The objective of this project was to demonstrate at full scale the use of solid honeycomb catalysts to promote the oxidation of elemental mercury (Hg0) in flue gas from coal combustion. The project was conducted from July 24, 2006 through June 30, 2010. It was conducted with cofunding from the U.S. Department of Energy's National Energy Technology Laboratory as part of Cooperative Agreement DE-FC26-06NT42778, "Full-Scale Testing of a Mercury Oxidation Catalyst Upstream of a Wet FGD System." Private secto...

2010-08-31T23:59:59.000Z

309

Superfund Record of Decision (EPA Region 8): Anaconda Smelter site, (Operable Unit 11 - Flue Dust), Deer Lodge County, Anaconda, MT. (Second remedial action), September 1991  

Science Conference Proceedings (OSTI)

The 6,000-acre Anaconda Smelter site is a former copper and ore processing facility in Deer Lodge County, Montana. Land use in the area is predominantly residential. The site is bounded on the north and east, respectively, by the Warm Springs Creek and Mill Creek, both of which are potential sources of drinking water. From 1884 until 1980 when activities ceased, the site was used for ore processing and smelting operations. In 1988, EPA conducted an investigation to determine the nature and extent of the flue dust contamination. A 1988 ROD addressed the Mill Creek Operable Unit (OU15) and documented the relocation of residents from the community surrounding the smelter site as the selected remedial action. The Record of Decision (ROD) addresses the Flue Dust Operable Unit (OU11). The primary contaminants of concern affecting this site from the flue dust materials are metals including arsenic, cadmium, and lead. The selected remedial action for the site is included.

Not Available

1991-09-23T23:59:59.000Z

310

Insolation integrator  

DOE Patents (OSTI)

An electric signal representative of the rate of insolation is integrated to determine if it is adequate for operation of a solar energy collection system.

Dougherty, John J. (Norristown, PA); Rudge, George T. (Lansdale, PA)

1980-01-01T23:59:59.000Z

311

Longer-term Characterization of Mercury Partitioning and Re-emissions in a Full-scale Wet Flue Gas Desulfurization System, Site 2  

Science Conference Proceedings (OSTI)

This document presents and discusses results from an EPRI project focused on understanding and enhancing how mercury is captured by a wet flue gas desulfurization (FGD) system and how it partitions among the FGD liquor, fine solids, and bulk FGD solid byproduct. A second objective was to close a mercury balance around the host unit by determining what portion of the coal mercury exits the stack with the scrubbed flue gas and how much ends up in the fly ash, byproduct gypsum, and FGD wastewater. During t...

2010-12-23T23:59:59.000Z

312

Flue Gas Cleanup at Temperatures about 1400 C for a Coal Fired Combined Cycle Power Plant: State and Perspectives in the Pressurized Pulverized Coal Combustion (PPCC) Project  

Science Conference Proceedings (OSTI)

The PPCC technology, a combined cycle, requires comprehensive cleaning of the flue gases because coal contains a large variety of minerals and other substances. This would lead to fast destruction of the gas turbine blades due to erosion and corrosion. The present specifications of the turbine manufacturers for the required flue gas quality are at a maximum particulate content of 5 mg/m3 s.t.p., diameter of Kraftwerke GmbH, SaarEnergie GmbH, Siemens AG, and Steag AG.

Foerster, M.E.C.; Oeking, K.; Hannes, K.

2002-09-18T23:59:59.000Z

313

Development of Novel CO2 Adsorbents for Capture of CO2 from Flue Gas  

SciTech Connect

Capturing CO2 emissions generated from fossil fuel-based power plants has received widespread attention and is considered a vital course of action for CO2 emission abatement. Efforts are underway at the Department of Energys National Energy Technology Laboratory to develop viable energy technologies enabling the CO2 capture from large stationary point sources. Solid, immobilized amine sorbents (IAS) formulated by impregnation of liquid amines within porous substrates are reactive towards CO2 and offer an alternative means for cyclic capture of CO2 eliminating, to some degree, inadequacies related to chemical absorption by aqueous alkanolamine solutions. This paper describes synthesis, characterization, and CO2 adsorption properties for IAS materials previously tested to bind and release CO2 and water vapor in a closed loop life support system. Tetraethylenepentamine (TEPA), acrylonitrile-modified tetraethylenepentamine (TEPAN), and a single formulation consisting of TEPAN and N, N-bis(2-hydroxyethyl)ethylenediamine (BED) were individually supported on a poly (methyl methacrylate) (PMMA) substrate and examined. CO2 adsorption profiles leading to reversible CO2 adsorption capacities were obtained using thermogravimetry. Under 10% CO2 in nitrogen at 25C and 1 atm, TEPA supported on PMMA over 60 minutes adsorbed ~3.2 mmol/g{sorbent} whereas, TEPAN supported on PMMA along with TEPAN and BED supported on PMMA adsorbed ~1.7 mmol/g{sorbent} and ~2.3 mmol/g{sorbent} respectively. Cyclic experiments with a 1:1 weight ratio of TEPAN and BED supported on poly (methyl methacrylate) beads utilizing a fixed-bed flow system with 9% CO2, 3.5% O2, nitrogen balance with trace gas constituents were studied. CO2 adsorption capacity was ~ 3 mmols CO2/g{sorbent} at 40C and 1.4 atm. No beneficial effect on IAS performance was found using a moisture-laden flue gas mixture. Tests with 750 ppmv NO in a humidified gas stream revealed negligible NO sorption onto the IAS. A high SO2 concentration resulted in incremental loss in IAS performance and revealed progressive degrees of staining upon testing. Adsorption of SO2 by the IAS necessitates upstream removal of SO2 prior to CO2 capture.

Fauth, D.J.; Filburn, T.P. (University of Hartford, West Hartford, CT); Gray, M.L.; Hedges, S.W.; Hoffman, J.; Pennline, H.W.; Filburn, T.

2007-06-01T23:59:59.000Z

314

Removal of CO{sub 2} from flue gases by algae. Technical report, December 1, 1992--February 28, 1993  

DOE Green Energy (OSTI)

The studies reported here confirmed our preliminary observations that Botryococcus braunii can tolerate and grow well in flue gas CO{sub 2} concentrations of 10 to 15%, and produce oil. The highest extracted oil was observed in 10% CO{sub 2} enriched air. Initial pH of the medium at or near 10 pH is favorable to cell growth probably by stimulating the CO{sub 2} solubilization in the medium. This is also indicated in Botryococcus braunii growth and oil formation in NaHCO{sub 3} added medium. The lack of growth in Na{sub 2}CO{sub 3} containing media was probably due to high pH. The CaCO{sub 3} precipitation from the CA{sup ++} gelled alginate beads indicate the need for alternative immobilization systems. But the attachment of the Botryococcus braunii cells to the bottom inner surfaces of the photobioreactors may eliminate the need for gel entrapment systems as the immobilization matrices. Attachment of the Botryococcus braunii cells to the bottom inner surfaces of the photobioreactors, rather than remaining in the suspension, reduces the significance of self shadowing and related liquid height (thickness) effect. The capability of Botryococcus braunii to grow in NaHCO{sub 3} solutions is very encouraging toward development of an alkaline scrubbing system for the flue gas followed by removal of the CO{sub 2} from the alkaline solution. In such a system the pH 10 is the currently observed upper limit.

Akin, C.; Maka, A.; Pradhan, S. [Institute of Gas Technology, Chicago, IL (United States); Banerjee, D. [Illinois Clean Coal Inst., Carterville, IL (United States)

1993-05-01T23:59:59.000Z

315

Selective CO2 Capture from Flue Gas Using Metal-Organic Frameworks?A Fixed Bed Study  

SciTech Connect

It is important to capture carbon dioxide from flue gas which is considered to be the main reason to cause global warming. CO2/N2 separation by novel adsorbents is a promising method to reduce CO2 emission but effect of water and CO2/N2 selectivity is critical to apply the adsorbents into practical applications. A very well known, Metal Organic Framework, NiDOBDC (Ni-MOF-74 or CPO-27-Ni) was synthesized through a solvothermal reaction and the sample (500 to 800 microns) was used in a fixed bed CO2/N2 breakthrough study with and without H2O. The Ni/DOBDC pellet has a high CO2 capacity of 3.74 mol/kg at 0.15 bar and a high CO2/N2 selectivity of 38, which is much higher than those of reported MOFs and zeolites under dry condition. Trace amount of water can impact CO2 adsorption capacity as well as CO2/N2 selectivity for the Ni/DOBDC. However, Ni/DOBDC can retain a significant CO2 capacity and CO2/N2 selectivity at 0.15 bar CO2 with 3% RH water. These results indicate a promising future to use the Ni/DOBDC in CO2 capture from flue gas.

Liu, Jian; Tian, Jian; Thallapally, Praveen K.; McGrail, B. Peter

2012-05-03T23:59:59.000Z

316

NETL: Solid-Fueled Pressurized Chemical Looping with Flue-Gas...  

NLE Websites -- All DOE Office Websites (Extended Search)

Cycle for Improved Plant Efficiency and CO2 Capture Project No.: DE-FE0009469 The University of Kentucky Center for Applied Energy Research is developing a heat-integrated...

317

Modeling and simulation of CO2 removal from power plant flue gas by PG solution in a hollow fiber membrane contactor  

Science Conference Proceedings (OSTI)

The absorption of carbon dioxide from nitrogen-carbon dioxide mixture was investigated in a polytetrafluoroethylene (PTFE) hollow fiber membrane module using potassium glycinate (PG) aqueous solution. A mathematical model was developed to simulate the ... Keywords: Absorption, Flue gas, Membrane contactor, Modeling, Potassium glycinate, Power plant

S. Eslami; S. M. Mousavi; S. Danesh; H. Banazadeh

2011-08-01T23:59:59.000Z

318

Greener Solvent Selection and Solvent Recycling for CO2 Capture Economically removing CO2 from the flue gases of coal-fired power plants would alleviate concerns  

E-Print Network (OSTI)

the flue gases of coal-fired power plants would alleviate concerns about their contribution to global of candidate solvents and solvent blends is very large, a purely experimental search is impossible. In recent and solvent blends and a new and efficient multiobjective optimization (MOP) framework under uncertainty[4

Ben-Arie, Jezekiel

319

Experimental Study on the Separation of CO2 from Flue Gas Using Hollow Fiber Membrane Contactors with Aqueous Solution of Potassium Glycinate  

Science Conference Proceedings (OSTI)

Experimental study on CO2 removal from flue gas using polypropylene hollow fiber membrane contactors were conducted. Aqueous solutions of potassium glycinate were used as absorption solution to absorb CO2 in the experiments. Under moderate operating ... Keywords: Gas absorption, Carbon dioxide, Potassium glycinate, Hollow fiber membrane contactor, Membrane absorption

Weifeng Zhang; Qiuhua Wang; Mengxiang Fang; Zhongyang Luo; Kefa Cen

2009-10-01T23:59:59.000Z

320

Partitioning of mercury, arsenic, selenium, boron, and chloride in a full-scale coal combustion process equipped with selective catalytic reduction, electrostatic precipitation, and flue gas desulfurization systems  

SciTech Connect

A full-scale field study was carried out at a 795 MWe coal-fired power plant equipped with selective catalytic reduction (SCR), an electrostatic precipitator (ESP), and wet flue gas desulfurization (FGD) systems to investigate the distribution of selected trace elements (i.e., mercury, arsenic, selenium, boron, and chloride) from coal, FGD reagent slurry, makeup water to flue gas, solid byproduct, and wastewater streams. Flue gases were collected from the SCR outlet, ESP inlet, FGD inlet, and stack. Concurrent with flue gas sampling, coal, bottom ash, economizer ash, and samples from the FGD process were also collected for elemental analysis. By combining plant operation parameters, the overall material balances of selected elements were established. The removal efficiencies of As, Se, Hg, and B by the ESP unit were 88, 56, 17, and 8%, respectively. Only about 2.5% of Cl was condensed and removed from flue gas by fly ash. The FGD process removed over 90% of Cl, 77% of B, 76% of Hg, 30% of Se, and 5% of As. About 90% and 99% of the FGD-removed Hg and Se were associated with gypsum. For B and Cl, over 99% were discharged from the coal combustion process with the wastewater. Mineral trona (trisodium hydrogendicarbonate dehydrate, Na{sub 3}H(CO{sub 3}){sub 2}.2H{sub 2}O) was injected before the ESP unit to control the emission of sulfur trioxide (SO{sub 3}). By comparing the trace elements compositions in the fly ash samples collected from the locations before and after the trona injection, the injection of trona did not show an observable effect on the partitioning behaviors of selenium and arsenic, but it significantly increased the adsorption of mercury onto fly ash. The stack emissions of mercury, boron, selenium, and chloride were for the most part in the gas phase. 47 refs., 3 figs., 11 tabs.

Chin-Min Cheng; Pauline Hack; Paul Chu; Yung-Nan Chang; Ting-Yu Lin; Chih-Sheng Ko; Po-Han Chiang; Cheng-Chun He; Yuan-Min Lai; Wei-Ping Pan [Western Kentucky University, Bowling Green, KY (United States). Institute for Combustion Science and Environmental Technology

2009-09-15T23:59:59.000Z

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

NREL: Energy Systems Integration - Energy Systems Integration...  

NLE Websites -- All DOE Office Websites (Extended Search)

Energy Systems Integration Facility NREL's Energy Systems Integration Facility Garners LEED Platinum View the NREL Press Release. NREL's multistory Energy Systems Integration...

322

NREL: Energy Systems Integration - Integrated Deployment Workshop  

NLE Websites -- All DOE Office Websites (Extended Search)

Integrated Deployment Workshop Integrated Deployment Workshop The Energy Systems Integration Facility workshop, Integrated Deployment, was held August 21 - 23, 2012 at the National Renewable Energy Laboratory in Golden, Colorado. Each day of the workshop, which included a tour of the Energy Systems Integration Facility, focused on a different topic: Day 1: Utility-Scale Renewable Integration Day 2: Distribution-Level Integration Day 3: Isolated and Islanded Grid Systems The agenda and presentations from the workshop are below. Agenda Energy Systems Integration Facility Overview ESIF Technology Partnerships Integrated Deployment Model Integrated Deployment and the Energy Systems Integration Facility: Workshop Proceedings Printable Version Energy Systems Integration Home Research & Development

323

ADVANCED FLUE GAS CONDITIONING AS A RETROFIT UPGRADE TO ENHANCE PM COLLECTION FROM COAL-FIRED ELECTRIC UTILITY BOILERS  

Science Conference Proceedings (OSTI)

ADA Environmental Solutions (ADA-ES) has successfully completed a research and development program granted by the Department of Energy National Energy Technology Laboratory (NETL) to develop a family of non-toxic flue gas conditioning agents to provide utilities and industries with a cost-effective means of complying with environmental regulations on particulate emissions and opacity. An extensive laboratory screening of potential additives was completed followed by full-scale trials at four utility power plants. The developed cohesivity additives have been demonstrated on a 175 MW utility boiler that exhibited poor collection of unburned carbon in the electrostatic precipitator. With cohesivity conditioning, opacity spiking caused by rapping reentrainment was reduced and total particulate emissions were reduced by more than 30%. Ammonia conditioning was also successful in reducing reentrainment on the same unit. Conditioned fly ash from the process is expected to be suitable for dry or wet disposal and for concrete admixture.

C. Jean Bustard

2003-12-01T23:59:59.000Z

324

Recovery of Water from Boiler Flue Gas Using Condensing Heat Exchangers ProMIS/Project No.: DE-NT0005648  

NLE Websites -- All DOE Office Websites (Extended Search)

Edward Levy Edward Levy Principal Investigator Director, Lehigh University Energy Research Center RecoveRy of WateR fRom BoileR flue Gas usinG condensinG Heat excHanGeRs PRomis/PRoject no.: de-nt0005648 Background As the United States' population grows and demand for electricity and water increases, power plants located in some parts of the country will find it increasingly difficult to obtain the large quantities of water needed to maintain operations. Most of the water used in a thermoelectric power plant is used for cooling, and the U.S. Department of Energy (DOE) has been focusing on possible techniques to reduce the amount of fresh water needed for cooling. Many coal-fired power plants operate with stack temperatures in the 300 °F range to minimize fouling and corrosion problems due to sulfuric acid condensation and to

325

Management of dry flue gas desulfurization by-products in underground mines. Annual report, October 1994--September 1995  

SciTech Connect

On September 30, 1993, the U.S. Department of Energy-Morgantown Energy Technology Center (DOE-METC) and Southern Illinois University at Carbondale (SIUC) entered into a cooperative research agreement entitled {open_quotes}Management of Dry Flue Gas Desulfurization By-Products in Underground Mines{close_quotes} (DE-FC21-93MC30252). Under the agreement Southern Illinois University at Carbondale will develop and demonstrate several technologies for the placement of coal combustion residues (CCBs) in abandoned coal mines, and will assess the environmental impact of such underground CCB placement. This report describes progress in the following areas: environmental characterization, mix development and geotechnical characterization, material handling and system economics, underground placement, and field demonstration.

Chugh, Y.P.; Dutta, D.; Esling, S. [and others

1995-10-01T23:59:59.000Z

326

Integrated municipal solid waste treatment using a grate furnace incinerator: The Indaver case  

SciTech Connect

An integrated installation for treatment of municipal solid waste and comparable waste from industrial origin is described. It consists of three grate furnace lines with flue gas treatment by half-wet scrubbing followed by wet scrubbing, and an installation for wet treatment of bottom ash. It is demonstrated that this integrated installation combines high recovery of energy (40.8% net) with high materials recovery. The following fractions were obtained after wet treatment of the bottom ash: ferrous metals, non-ferrous metals, three granulate fractions with different particle sizes, and sludge. The ferrous and non-ferrous metal fractions can both be recycled as high quality raw materials; the two larger particle size particle fractions can be applied as secondary raw materials in building applications; the sand fraction can be used for applications on a landfill; and the sludge is landfilled. For all components of interest, emissions to air are below the limit values. The integrated grate furnace installation is characterised by zero wastewater discharge and high occupational safety. Moreover, with the considered installation, major pollutants, such as PCDD/PCDF, Hg and iodine-136 are to a large extent removed from the environment and concentrated in a small residual waste stream (flue gas cleaning residue), which can be landfilled after stabilisation.

Vandecasteele, C. [Department of Chemical Engineering, Katholieke Universiteit Leuven, De Croylaan 46, 3001 Leuven (Belgium)], E-mail: carlo.vandecasteele@cit.kuleuven.be; Wauters, G. [Indaver, Dijle 17a, 2800 Mechelen (Belgium); Arickx, S. [Department of Chemical Engineering, Katholieke Universiteit Leuven, De Croylaan 46, 3001 Leuven (Belgium); Jaspers, M. [Indaver, Dijle 17a, 2800 Mechelen (Belgium); Van Gerven, T. [Department of Chemical Engineering, Katholieke Universiteit Leuven, De Croylaan 46, 3001 Leuven (Belgium)

2007-07-01T23:59:59.000Z

327

Fouling reduction characteristics of a no-distributor-fluidized-bed heat exchanger for flue gas heat recovery  

Science Conference Proceedings (OSTI)

In conventional flue gas heat recovery systems, the fouling by fly ashes and the related problems such as corrosion and cleaning are known to be major drawbacks. To overcome these problems, a single-riser no-distributor-fluidized-bed heat exchanger is devised and studied. Fouling and cleaning tests are performed for a uniquely designed fluidized bed-type heat exchanger to demonstrate the effect of particles on the fouling reduction and heat transfer enhancement. The tested heat exchanger model (1 m high and 54 mm internal diameter) is a gas-to-water type and composed of a main vertical tube and four auxiliary tubes through which particles circulate and transfer heat. Through the present study, the fouling on the heat transfer surface could successfully be simulated by controlling air-to-fuel ratios rather than introducing particles through an external feeder, which produced soft deposit layers with 1 to 1.5 mm thickness on the inside pipe wall. Flue gas temperature at the inlet of heat exchanger was maintained at 450{sup o}C at the gas volume rate of 0.738 to 0.768 CMM (0.0123 to 0.0128 m{sup 3}/sec). From the analyses of the measured data, heat transfer performances of the heat exchanger before and after fouling and with and without particles were evaluated. Results showed that soft deposits were easily removed by introducing glass bead particles, and also heat transfer performance increased two times by the particle circulation. In addition, it was found that this type of heat exchanger had high potential to recover heat of waste gases from furnaces, boilers, and incinerators effectively and to reduce fouling related problems.

Jun, Y.D.; Lee, K.B.; Islam, S.Z.; Ko, S.B. [Kongju National University, Kong Ju (Republic of Korea). Dept. for Mechanical Engineering

2008-07-01T23:59:59.000Z

328

integr~1  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

7 7 AUDIT REPORT THE U.S. DEPARTMENT OF ENERGY' S MANAGEMENT OF RESEARCH AND DEVELOPMENT INTEGRATION MARCH 1998 U.S. DEPARTMENT OF ENERGY OFFICE OF INSPECTOR GENERAL OFFICE OF AUDIT SERVICES DEPARTMENT OF ENERGY Washington, DC 20585 MEMORANDUM FOR THE SECRETARY FROM: Gregory H. Friedman Principal Deputy Inspector General SUBJECT: INFORMATION : Audit Report on "Audit of the Department of Energy's Management of Research and Development Integration" BACKGROUND The Congress, independent task forces, and advisory groups have pointed out the need for the Department to improve its integration of research and development (R&D) projects. In the past, R&D management was carried out by different program offices with the research being

329

RADIATIVE PROPERTY MEASUREMENTS OF OXY-FUEL FLAMES  

Science Conference Proceedings (OSTI)

As part of the DOE Existing Plants, Emissions and Capture (EPEC) program, oxy-combustion is being investigated as a method to simplify carbon capture and reduce the parasitic energy penalties associated with separating CO2 from a dilute flue gas. Gas-phase radiation heat transfer in boilers becomes significant when shifting from air-firing to oxycombustion, and must be accurately represented in models. Currently, radiative property data are not widely available in the literature for conditions appropriate to this environment. In order to facilitate the development and validation of accurate oxy-combustion models, NETL conducted a series of studies to measure radiation properties of oxy-fuel flames at adiabatic flame temperatures of 1750 - 1950K, and product molar concentrations ranging from 95% CO2 to 100% steam, determined by equilibrium calculations. Transmission coefficients were measured as a function of wavelength using a mid-IR imaging spectrometer and a blackbody radiation source. Additionally, flame temperatures were calculated using data collected within CO2 and H2O absorption bands. Experimental results were compared to two statistical narrowband models and experimental data from literature sources. These comparisons showed good overall agreement, although differences between the models and experimental results were noted, particularly for the R branch of the 2.7 ?m H2O band.

Clinton R. Bedick; Stephen K. Beer; Kent H. Casleton; Benjamin T. Chorpening; David W. Shaw; M. Joseph Yip

2011-03-01T23:59:59.000Z

330

Integrated System  

NLE Websites -- All DOE Office Websites (Extended Search)

Integrated Window System Our research activities in the field of high performance windows have led us to conclude that even by using high performance insulating glass units, low conductivity frames, and warm edge spacers, there are still untapped sources for improving energy efficiency in the design and use of residential windows. While such high performance windows are a dramatic improvement over conventional units, they do not reduce conductive losses through wall framing around the window, offer guarantees against excessive wall/window infiltration nor do they adapt to the daily and seasonal potentials for night insulation and summer shading. To meet this need, we have been working on the design, development, and prototyping of Integrated Window Systems (IWS) since 1993. Integrated Window Systems are a form of panelized construction where the wall panel includes an operable or fixed window sash, recessed night insulation, integral solar shading, and is built in a factory setting in order to minimize thermal short circuits and infiltration at joints. IWSs can be built in modular lengths to facilitate their installation with conventional wood frame stick construction or other forms of panelized construction.

331

Development of Fly Ash Derived Sorbents to Capture CO2 from Flue Gas of Power Plants  

DOE Green Energy (OSTI)

This research program focused on the development of fly ash derived sorbents to capture CO{sub 2} from power plant flue gas emissions. The fly ash derived sorbents developed represent an affordable alternative to existing methods using specialized activated carbons and molecular sieves, that tend to be very expensive and hinder the viability of the CO{sub 2} sorption process due to economic constraints. Under Task 1 'Procurement and characterization of a suite of fly ashes', 10 fly ash samples, named FAS-1 to -10, were collected from different combustors with different feedstocks, including bituminous coal, PRB coal and biomass. These samples presented a wide range of LOI value from 0.66-84.0%, and different burn-off profiles. The samples also spanned a wide range of total specific surface area and pore volume. These variations reflect the difference in the feedstock, types of combustors, collection hopper, and the beneficiation technologies the different fly ashes underwent. Under Task 2 'Preparation of fly ash derived sorbents', the fly ash samples were activated by steam. Nitrogen adsorption isotherms were used to characterize the resultant activated samples. The cost-saving one-step activation process applied was successfully used to increase the surface area and pore volume of all the fly ash samples. The activated samples present very different surface areas and pore volumes due to the range in physical and chemical properties of their precursors. Furthermore, one activated fly ash sample, FAS-4, was loaded with amine-containing chemicals (MEA, DEA, AMP, and MDEA). The impregnation significantly decreased the surface area and pore volume of the parent activated fly ash sample. Under Task 3 'Capture of CO{sub 2} by fly ash derived sorbents', sample FAS-10 and its deashed counterpart before and after impregnation of chemical PEI were used for the CO{sub 2} adsorption at different temperatures. The sample FAS-10 exhibited a CO{sub 2} adsorption capacity of 17.5mg/g at 30 C, and decreases to 10.25mg/g at 75 C, while those for de-ashed counterpart are 43.5mg/g and 22.0 mg/g at 30 C and 75 C, respectively. After loading PEI, the CO{sub 2} adsorption capacity increased to 93.6 mg/g at 75 C for de-ashed sample and 62.1 mg/g at 75 C for raw fly ash sample. The activated fly ash, FAS-4, and its chemical loaded counterparts were tested for CO{sub 2} capture capacity. The activated carbon exhibited a CO{sub 2} adsorption capacity of 40.3mg/g at 30 C that decreased to 18.5mg/g at 70 C and 7.7mg/g at 120 C. The CO{sub 2} adsorption capacity profiles changed significantly after impregnation. For the MEA loaded sample the capacity increased to 68.6mg/g at 30 C. The loading of MDEA and DEA initially decreased the CO{sub 2} adsorption capacity at 30 C compared to the parent sample but increased to 40.6 and 37.1mg/g, respectively, when the temperature increased to 70 C. The loading of AMP decrease the CO{sub 2} adsorption capacity compared to the parent sample under all the studied temperatures. Under Task 4 'Comparison of the CO{sub 2} capture by fly ash derived sorbents with commercial sorbents', the CO{sub 2} adsorption capacities of selected activated fly ash carbons were compared to commercial activated carbons. The CO{sub 2} adsorption capacity of fly ash derived activated carbon, FAS-4, and its chemical loaded counterpart presented CO{sub 2} capture capacities close to 7 wt%, which are comparable to, and even better than, the published values of 3-4%.

M. Mercedes Maroto-Valer; John M. Andresen; Yinzhi Zhang; Zhe Lu

2003-12-31T23:59:59.000Z

332

Development of Fly Ash Derived Sorbents to Capture CO2 from Flue Gas of Power Plants  

SciTech Connect

This research program focused on the development of fly ash derived sorbents to capture CO{sub 2} from power plant flue gas emissions. The fly ash derived sorbents developed represent an affordable alternative to existing methods using specialized activated carbons and molecular sieves, that tend to be very expensive and hinder the viability of the CO{sub 2} sorption process due to economic constraints. Under Task 1 'Procurement and characterization of a suite of fly ashes', 10 fly ash samples, named FAS-1 to -10, were collected from different combustors with different feedstocks, including bituminous coal, PRB coal and biomass. These samples presented a wide range of LOI value from 0.66-84.0%, and different burn-off profiles. The samples also spanned a wide range of total specific surface area and pore volume. These variations reflect the difference in the feedstock, types of combustors, collection hopper, and the beneficiation technologies the different fly ashes underwent. Under Task 2 'Preparation of fly ash derived sorbents', the fly ash samples were activated by steam. Nitrogen adsorption isotherms were used to characterize the resultant activated samples. The cost-saving one-step activation process applied was successfully used to increase the surface area and pore volume of all the fly ash samples. The activated samples present very different surface areas and pore volumes due to the range in physical and chemical properties of their precursors. Furthermore, one activated fly ash sample, FAS-4, was loaded with amine-containing chemicals (MEA, DEA, AMP, and MDEA). The impregnation significantly decreased the surface area and pore volume of the parent activated fly ash sample. Under Task 3 'Capture of CO{sub 2} by fly ash derived sorbents', sample FAS-10 and its deashed counterpart before and after impregnation of chemical PEI were used for the CO{sub 2} adsorption at different temperatures. The sample FAS-10 exhibited a CO{sub 2} adsorption capacity of 17.5mg/g at 30 C, and decreases to 10.25mg/g at 75 C, while those for de-ashed counterpart are 43.5mg/g and 22.0 mg/g at 30 C and 75 C, respectively. After loading PEI, the CO{sub 2} adsorption capacity increased to 93.6 mg/g at 75 C for de-ashed sample and 62.1 mg/g at 75 C for raw fly ash sample. The activated fly ash, FAS-4, and its chemical loaded counterparts were tested for CO{sub 2} capture capacity. The activated carbon exhibited a CO{sub 2} adsorption capacity of 40.3mg/g at 30 C that decreased to 18.5mg/g at 70 C and 7.7mg/g at 120 C. The CO{sub 2} adsorption capacity profiles changed significantly after impregnation. For the MEA loaded sample the capacity increased to 68.6mg/g at 30 C. The loading of MDEA and DEA initially decreased the CO{sub 2} adsorption capacity at 30 C compared to the parent sample but increased to 40.6 and 37.1mg/g, respectively, when the temperature increased to 70 C. The loading of AMP decrease the CO{sub 2} adsorption capacity compared to the parent sample under all the studied temperatures. Under Task 4 'Comparison of the CO{sub 2} capture by fly ash derived sorbents with commercial sorbents', the CO{sub 2} adsorption capacities of selected activated fly ash carbons were compared to commercial activated carbons. The CO{sub 2} adsorption capacity of fly ash derived activated carbon, FAS-4, and its chemical loaded counterpart presented CO{sub 2} capture capacities close to 7 wt%, which are comparable to, and even better than, the published values of 3-4%.

M. Mercedes Maroto-Valer; John M. Andresen; Yinzhi Zhang; Zhe Lu

2003-12-31T23:59:59.000Z

333

Fundamental mechanisms in flue-gas conditioning. Topical report No. 1, Literature review and assembly of theories on the interactions of ash and FGD sorbents  

Science Conference Proceedings (OSTI)

The overall goal of this research project is to formulate a mathematical model of flue gas conditioning. This model will be based on an understanding of why ash properties, such as cohesivity and resistivity, are changed by conditioning. Such a model could serve as a component of the performance models of particulate control devices where flue gas conditioning is used. There are two specific objectives of this research project, which divide the planned research into two main parts. One part of the project is designed to determine how ash particles are modified by interactions with sorbent injection processes and to describe the mechanisms by which these interactions affect fine particle collection. The objective of the other part of the project is to identify the mechanisms by which conditioning agents, including chemically active compounds, modify the key properties of fine fly ash particles.

Dahlin, R.S.; Vann Bush, P.; Snyder, T.R.

1992-01-09T23:59:59.000Z

334

Fundamental mechanisms in flue gas conditioning. Topical report No. 2, Literature review and assembly of theories on the interactions of ash and conditioning agents  

Science Conference Proceedings (OSTI)

The overall goal of this research project is to formulate a mathematical model of flue gas conditioning. This model will be based on an understanding of why ask properties, such as cohesivity and resistivity, are changed by conditioning. Such a model could serve as a component of the performance models of particulate control devices where flue gas conditioning is used. There are two specific objectives of this research project, which divide the planned research into two main parts. One part of the project is designed to determine how ash particles are modified by interactions with sorbent injection processes and to describe the mechanisms by which these interactions affect fine particle collection. The objective of the other part of the project is to identify the mechanisms by which conditioning agents, including chemically active compounds, modify the key properties of fine fly ash particles.

Bush, P.V.; Snyder, T.R.

1992-01-09T23:59:59.000Z

335

Effects of HCl and SO{sub 2} concentration on mercury removal by activated carbon sorbents in coal-derived flue gas  

Science Conference Proceedings (OSTI)

The effect of the presence of HCl and SO{sub 2} in the simulated coal combustion flue gas on the Hg{sup 0} removal by a commercial activated carbon (coconut shell AC) was investigated in a laboratory-scale fixed-bed reactor in a temperature range of 80-200{sup o}C. The characteristics (thermal stability) of the mercury species formed on the sorbents under various adsorption conditions were investigated by the temperature-programmed decomposition desorption (TPDD) technique. It was found that the presence of HCl and SO{sub 2} in the flue gas affected the mercury removal efficiency of the sorbents as well as the characteristics of the mercury adsorption species. The mercury removal rate of AC increased with the HCl concentration in the flue gas. In the presence of HCl and the absence of SO{sub 2} during Hg{sup 0} adsorption by AC, a single Hg{sup 0} desorption peak at around 300{sup o}C was observed in the TPDD spectra and intensity of this peak increased with the HCl concentration during mercury adsorption. The peak at around 300{sup o}C may be derived from the decomposition and desorption of mercury chloride species. The presence of SO{sub 2} during mercury adsorption had an adverse effect on the mercury removal by AC in the presence of HCl. In the presence of both HCl and SO{sub 2} during Hg{sup 0} adsorption by AC, the major TPDD peak temperatures changed drastically depending upon the concentration of HCl and SO{sub 2} in flue gas during Hg{sup 0} adsorption. 16 refs., 7 figs.

Ryota Ochiai; M. Azhar Uddin; Eiji Sasaoka; Shengji Wu [Okayama University, Okayama (Japan). Faculty of Environmental Science and Technology

2009-09-15T23:59:59.000Z

336

Selenium Removal by Iron Cementation from a Coal-Fired Power Plant Flue Gas Desulfurization Wastewater in a Continuous Flow System-- a Pilot Study  

Science Conference Proceedings (OSTI)

This technical update describes work funded by the Electric Power Research Institute (EPRI) and performed by MSE Technology Applications, Inc. (MSE) at a coal-fired power plant burning Powder River Basin (PRB) coal (identified in this report as Plant E). This work was based on encouraging results obtained during previous EPRI-funded work on flue gas desulfurization (FGD) wastewater treatability testing by MSE, which focused on selenium removal from a variety of FGD wastewater sources. The results from th...

2009-07-29T23:59:59.000Z

337

Pilot-Scale Demonstration of Hybrid Zero-Valent Iron Water Treatment Technology: Removing Trace Metals from Flue Gas Desulfurization (FGD) Wastewater  

Science Conference Proceedings (OSTI)

In previous laboratory- and field bench-scale tests, the hybrid zero-valent iron (hZVI) process had been demonstrated capable of removing selenium, mercury, nitrates, and other pollutants from flue gas desulfurization (FGD) wastewater. By incorporating zero-valent iron (ZVI) with magnetite and certain Fe(II) species, the hZVI technology creates a highly reactive mixture that can transform and immobilize various trace metals, oxyanions, and other impurities from aqueous streams. To further evaluate ...

2013-04-09T23:59:59.000Z

338

Pilot-Scale and Full-Scale Evaluation of Treatment Technologies for the Removal of Mercury and Selenium in Flue Gas Desulphurization Water  

Science Conference Proceedings (OSTI)

This report presents an overall evaluation of the various advanced treatment technologies that the Electric Power Research Institute (EPRI) has tested for removal of mercury and selenium from flue gas desulfurization (FGD) water. EPRI conducted a literature survey followed by a preliminary laboratory-scale evaluation to screen promising technologies. For the technologies that were selected based on the success of laboratory-scale testing, EPRI worked with treatment vendors to further evaluate these techn...

2010-05-11T23:59:59.000Z

339

NREL: Energy Systems Integration - Energy Systems Integration...  

NLE Websites -- All DOE Office Websites (Extended Search)

Energy Systems Integration Facility Newsroom The Energy Systems Integration Facility (ESIF) will be one of the only megawatt-scale test facilities in the United States that...

340

NREL: Transmission Grid Integration - Solar Integration National...  

NLE Websites -- All DOE Office Websites (Extended Search)

of the Western Wind and Solar Integration Study and Eastern Wind Integration and Transmission Study datasets greatly advanced the modeling of wind and solar power production...

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

NREL: Transmission Grid Integration - Wind Integration Datasets  

NLE Websites -- All DOE Office Websites (Extended Search)

Wind Integration Datasets The Wind Integration Datasets provide energy professionals with a consistent set of wind profiles for the eastern United States and the western United...

342

Management of dry flue gas desulfurization by-products in underground mines. Topical report, April 1, 1996--April 30, 1997  

Science Conference Proceedings (OSTI)

This report represents the Final Technical Progress Report for Phase II of the overall program for a cooperative research agreement between the U.S. Department of Energy - MORGANTOWN Energy Technology Center (DOE-METC) and Southern Illinois University at Carbondale (SIUC). Under the agreement, SIUC will develop and demonstrate technologies for the handling, transport, and placement in abandoned underground coal mines of dry flue gas desulfurization by-products, such as fly ash, scrubber sludge, fluidized bed combustion by-products, and will assess the environmental impact of such underground placement. The overall program is divided into three (3) phases. Phase II of the program is primarily concerned with developing and testing the hardware for the actual underground placement demonstrations. Two technologies have been identified and hardware procured for full-scale demonstrations: (1) hydraulic placement, where coal combustion by-products (CCBs) will be placed underground as a past-like mixture containing about 70 to 75 percent solids; and (2) pneumatic placement, where CCBs will be placed underground as a relatively dry material using compressed air. 42 refs., 36 figs., 36 tabs.

Chugh, Y.P.; Brackebusch, F.; Carpenter, J. [and others

1998-12-31T23:59:59.000Z

343

Management of dry flue gas desulfurization by-products in underground mines. Quarterly report, October--December 1994  

SciTech Connect

On September 30, 1993, the US Department of Energy, Morgantown Energy Technology Center and Southern Illinois University at Carbondale (SIUC) entered into a cooperative agreement entitled ``Management of Dry Flue Gas Desulfurization By-Products in Underground Mines`` (DE-FC21-93MC30252). Under the agreement, Southern Illinois University at Carbondale will develop and demonstrate several technologies for the placement of coal combustion residues in abandoned coal mines, and will assess the environmental impact of such underground residues placement. The major event during the quarter was the demonstration of the SEEC, Inc. technology for loading and transporting coal combustion residues in the SEEC developed Collapsible Intermodal Containers (CIC). The demonstration was held on November 17, 1994, at the Illinois Power Company Baldwin power plant, and was attended by about eighty (80) invited guest. Also during the quarter meetings were held with Peabody Coal Company officials to finalize the area in the Peabody No. 10 mine to be used for the placement of coal combustion residues. Work under the Materials Handling and Systems Economics area continued, particularly in refining the costs and systems configuration and in economic evaluation of various systems using equipment leasing rather than equipment purchases. Likewise, work progressed on residues characterization, with some preparations being made for long-term testing.

Chugh, Y.; Dutta, D.; Esling, S.; Ghafoori, N.; Paul, B.; Sevim, H.; Thomasson, E.

1995-01-01T23:59:59.000Z

344

DEVELOPMENT OF SUPERIOR SORBENTS FOR SEPARATION OF CO2 FROM FLUE GAS AT A WIDE TEMPERATURE RANGE DURING COAL COMBUSTION  

SciTech Connect

For this part of the project the studies focused on the development of novel sorbents for reducing the carbon dioxide emissions at high temperatures. Our studies focused on cesium doped CaO sorbents with respect to other major flue gas compounds in a wide temperature range. The thermo-gravimetric analysis of sorbents with loadings of CaO doped on 20 wt% cesium demonstrated high CO{sub 2} sorption uptakes (up to 66 wt% CO{sub 2}/sorbent). It is remarkable to note that zero adsorption affinity for N{sub 2}, O{sub 2}, H{sub 2}O and NO at temperatures as high as 600 C was observed. For water vapor and nitrogen oxide we observed a positive effect for CO{sub 2} adsorption. In the presence of steam, the CO{sub 2} adsorption increased to the highest adsorption capacity of 77 wt% CO{sub 2}/sorbent. In the presence of nitrogen oxide, the final CO{sub 2} uptake remained same, but the rate of adsorption was higher at the initial stages (10%) than the case where no nitrogen oxide was fed.

Panagiotis G. Smirniotis

2005-01-30T23:59:59.000Z

345

Development of Superior Sorbents for Separation of CO2 from Flue Gas at a Wide Temperature range during Coal Combustion  

SciTech Connect

A number basic sorbents based on CaO were synthesized, characterized with novel techniques and tested for sorption of CO{sub 2} and selected gas mixtures simulating flue gas from coal fired boilers. Our studies resulted in highly promising sorbents which demonstrated zero affinity for N{sub 2}, O{sub 2}, SO{sub 2}, and NO very low affinity for water, ultrahigh CO{sub 2} sorption capacities, and rapid sorption characteristics, CO{sub 2} sorption at a very wide temperature range, durability, and low synthesis cost. One of the 'key' characteristics of the proposed materials is the fact that we can control very accurately their basicity (optimum number of basic sites of the appropriate strength) which allows for the selective chemisorption of CO{sub 2} at a wide range of temperatures. These unique characteristics of this family of sorbents offer high promise for development of advanced industrial sorbents for the effective CO{sub 2} removal.

Panagiotis Smirniotis

2002-09-17T23:59:59.000Z

346

Economic assessment of advanced flue gas desulfurization processes. Final report. Volume 2. Appendices G, H, and I  

SciTech Connect

This report presents the results of a project sponsored by the Morgantown Energy Technology Center (METC). The purpose of the study was to perform an economic and market assessment of advanced flue gas desulfurization (FGD) processes for application to coal-fired electric utility plants. The time period considered in the study is 1981 through 1990, and costs are reported in 1980 dollars. The task was divided into the following four subtasks: (1) determine the factors affecting FGD cost evaluations; (2) select FGD processes to be cost-analyzed; (3) define the future electric utility FGD system market; and (4) perform cost analyses for the selected FGD processes. The study was initiated in September 1979, and separate reports were prepared for the first two subtasks. The results of the latter two subtasks appear only in this final report, since the end-date of those subtasks coincided with the end-date of the overall task. The Subtask 1 report, Criteria and Methods for Performing FGD Cost Evaluation, was completed in October 1980. A slightly modified and condensed version of that report appears as Appendix B to this report. The Subtask 2 report, FGD Candidate Process Selection, was completed in January 1981, and the principal outputs of that subtask appear in Appendices C and D to this report.

Bierman, G. R.; May, E. H.; Mirabelli, R. E.; Pow, C. N.; Scardino, C.; Wan, E. I.

1981-09-01T23:59:59.000Z

347

Use of flue gas desulphurisation (FGD) waste and rejected fly ash in waste stabilization/solidification systems  

Science Conference Proceedings (OSTI)

Stabilization/solidification (S/S) processes have been used as the final treatment step for hazardous wastes prior to land disposal. Fly ash is a by-product of coal-fired power generation; a significant proportion of this material is low-grade, reject material (rFA) that is unsuitable as a cement replacement due to its high carbon content and large particle size (>45 {mu}m). Flue gas desulphurization (FGD) sludge is a by-product from the air pollution control systems used in coal-fired power plants. The objective of this work was to investigate the performance of S/S waste binder systems containing these two waste materials (rFA and FGD). Strength tests show that cement-based waste forms with rFA and FGD replacement were suitable for disposal in landfills. The addition of an appropriate quantity of Ca(OH){sub 2} and FGD reduces the deleterious effect of heavy metals on strength development. Results of TCLP testing and the progressive TCLP test show that cement-rFA-Ca(OH){sub 2} systems with a range of FGD additions can form an effective S/S binder. The Leachability Index indicates that cement-based waste forms with rFA replacement were effective in reducing the mobility of heavy metals.

Qiao, X.C. [Department of Civil and Structural Engineering, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong (China); School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070 (China); Poon, C.S. [Department of Civil and Structural Engineering, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong (China)]. E-mail: cecspoon@polyu.edu.hk; Cheeseman, C. [Department of Civil and Environmental Engineering, Imperial College, London SW7 2BU (United Kingdom)

2006-07-01T23:59:59.000Z

348

An Integrated Approach for Oxy-fuel Combustion with CO2 Capture and Compression  

NLE Websites -- All DOE Office Websites (Extended Search)

Vent Stream Vent Stream (out) CO 2 Product Stream (out) Flue Gas Stream (in) CO 2 CCU Skid Government of Canada Gouvernement du Canada An Integrated Approach for Oxy An Integrated Approach for Oxy- -fuel Combustion with CO fuel Combustion with CO 2 2 Capture and Capture and Compression Compression Kourosh Zanganeh, Ahmed Shafeen, and Carlos Salvador Zero-Emission Technologies Group, Clean Electric Power Generation CANMET CO 2 R&D Consortium CANMET Energy Technology Centre - Ottawa The capture and storage or reuse of carbon dioxide (CO 2 ) from the combustion of fossil fuels as well as industrial off gases represents an opportunity to achieve a significant reduction in anthropogenic greenhouse gas (GHG) emissions. Fossil fuel combustion is expected to dominate the energy structure in at least the next few decades.

349

Annual Report: Advanced Combustion (30 September 2012)  

SciTech Connect

The Advanced Combustion Project addresses fundamental issues of fire-side and steam-side corrosion and materials performance in oxy-fuel combustion environments and provides an integrated approach into understanding the environmental and mechanical behavior such that environmental degradation can be ameliorated and long-term microstructural stability, and thus, mechanical performance can lead to longer lasting components and extended power plant life. The technical tasks of this effort are Oxy-combustion Environment Characterization, Alloy Modeling and Life Prediction, and Alloy Manufacturing and Process Development.

Hawk, Jeffrey [NETL] [NETL; Richards, George

2012-09-30T23:59:59.000Z

350

Demonstration Development Project: Oxy-Fired Circulating Fluidized Bed with Carbon Dioxide Capture and Storage at Holland Board of P ublic Works  

Science Conference Proceedings (OSTI)

Oxy-combustion of coal has been proposed as a way of reducing costs of capturing CO2 from coal-fired steam-electric power plants at a purity adequate for geological storage. To date only laboratory and test-stand studies have been conducted, primarily focusing on the combustion process. The next major development step is to field an integrated oxy-coal power plant. Such a project has been proposed and is being developed for deployment at the Holland (MI) Board of Public Works James De Young Power Station...

2009-12-11T23:59:59.000Z

351

Program on Technology Innovation: Oxy-Fired CFB with CO2 Capture and Storage at Jamestown (NY) Board of Public Utilities  

Science Conference Proceedings (OSTI)

Oxy-combustion of coal has been proposed as a way of reducing the costs of capturing CO2 (at a purity sufficient for geological storage) from coal-fired steam-electric power plants. To date, only lab and test-stand studies have been conducted, focusing primarily on the combustion process. The next major development step is to field an integrated oxy-coal power plant. Such a project has been proposed and is being developed for deployment at the Jamestown (NY) Board of Public Utilities (BPU) Carlson Genera...

2009-05-15T23:59:59.000Z

352

FE Carbon Capture and Storage News | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

August 9, 2012 August 9, 2012 Second Phase of Innovative Technology Project to Capture CO2, Produce Biofuels Launched in Ohio A novel method to capture carbon dioxide from flue gas and produce biofuels has been formally launched in the second phase of a Department of Energy project at a nursery in Ohio. July 26, 2012 Energy Department Announces Awards to Projects Advancing Innovative Clean Coal Technology As part of President Obama's all-of-the-above approach to American energy, the Energy Department announced today the selection of eight projects to advance the development of transformational oxy-combustion technologies capable of high-efficiency, low-cost carbon dioxide capture from coal-fired power plants. July 26, 2012 Energy Department Announces Awards to Projects Advancing Innovative Clean

353

Microsoft Word - ThisWeek04.09.13.docx  

NLE Websites -- All DOE Office Websites (Extended Search)

9, 2013 9, 2013 NETL Furnishes Models in Support of Future Oxy-Combustion Demonstration NETL researchers have turned over models developed with GE GateCycle © software to Jupiter Oxygen Corporation completing a decade-long partnership exploring how to use the high-temperature flames produced when oxy-fuel combustion occurs with low rates of flue gas recycle. The high-temperature approach introduces oxygen content as a new degree of freedom in designing boilers for systems that can potentially deliver power at lower cost than other carbon-capture technologies. Greenfield boilers designed for high temperature could maintain optimum heat flux with less heat transfer surface, reducing capital cost. These smaller boilers could also achieve lower operating costs through modularity of design and greater recovery of

354

Advanced Combustion  

NLE Websites -- All DOE Office Websites (Extended Search)

Systems Systems Advanced Combustion Background Conventional coal-fired power plants utilize steam turbines to generate electricity, which operate at efficiencies of 35-37 percent. Operation at higher temperatures and pressures can lead to higher efficiencies, resulting in reduced fuel consumption and lower greenhouse gas emissions. Higher efficiency also reduces CO2 production for the same amount of energy produced, thereby facilitating a reduction in greenhouse gas emissions. When combined, oxy-combustion comes with an efficiency hit, so it will actually increase the amount of CO2 to be captured. But without so much N2 in the flue gas, it will be easier and perhaps more efficient to capture, utilize and sequester. NETL's Advanced Combustion Project and members of the NETL-Regional University

355

Management of dry flue gas desulfurization by-products in underground mines. Quarterly technical progress report, April 1995--June 1995  

SciTech Connect

On September 30, 1993, the U.S. Department of Energy-Morgantown Energy Technology Center and Southern Illinois University at Carbondale (SIUC) entered into a cooperative research agreement entitled {open_quotes}Management of Dry Flue Gas Desulfurization By-Products in Underground Mines{close_quotes} (DE-FC21-93MC30252). Under the agreement Southern Illinois University at Carbondale will develop and demonstrate several technologies for the placement of coal combustion residues in abandoned coal mines, and will assess the environmental impact of such underground residues placement. Previous quarterly Technical Progress Reports have set forth the specific objectives of the program, and a discussion of these is not repeated here. Rather, this report discusses the technical progress made during the period April 1 - June 30, 1995. A final topical report on the SEEC, Inc. demonstration of its technology for the transporting of coal combustion residues was completed during the quarter, although final printing of the report was accomplished early in July, 1995. The SEEC technology involves the use of Collapsible Intermodal Containers (CIC`s) developed by SEEC, and the transportation of such containers - filled with fly ash or other coal combustion residues - on rail coal cars or other transportation means. Copies of the final topical report, entitled {open_quotes}The Development and Testing of Collapsible Intermodal Containers for the Handling and Transport of Coal Combustion Residues{close_quotes} were furnished to the Morgantown Energy Technology Center. The Rapid Aging Test colums were placed in operation during the quarter. This test is to determine the long-term reaction of both the pneumatic and hydraulic mixtures to brine as a leaching material, and simulates the conditions that will be encountered in the actual underground placement of the coal combustion residues mixtures. The tests will continue for about one year.

Chugh, Y.P.; Dutta, D.; Esling, S. [and others

1995-07-01T23:59:59.000Z

356

Integrated Designs to Integrated Operations using BMS  

NLE Websites -- All DOE Office Websites (Extended Search)

Integrated Designs to Integrated Operations using BMS Speaker(s): Punit Desai Date: February 6, 2013 - 12:15pm Location: 90-3122 Seminar HostPoint of Contact: Girish Ghatikar The...

357

Pilot-scale study of the effect of selective catalytic reduction catalyst on mercury speciation in Illinois and Powder River Basin coal combustion flue gases  

SciTech Connect

A study was conducted to investigate the effect of selective catalytic reduction (SCR) catalyst on mercury (Hg) speciation in bituminous and subbituminous coal combustion flue gases. Three different Illinois Basin bituminous coals (from high to low sulfur (S) and chlorine (Cl)) and one Powder River Basin (PRB) subbituminous coal with very low S and very low Cl were tested in a pilot-scale combustor equipped with an SCR reactor for controlling nitrogen oxides (NO{sub x}) emissions. The SCR catalyst induced high oxidation of elemental Hg (Hg{sup 0}), decreasing the percentage of Hg{sup 0} at the outlet of the SCR to values <12% for the three Illinois coal tests. The PRB coal test indicated a low oxidation of Hg{sup 0} by the SCR catalyst, with the percentage of Hg{sup 0} decreasing from {approximately} 96% at the inlet of the reactor to {approximately} 80% at the outlet. The low Cl content of the PRB coal and corresponding low level of available flue gas Cl species were believed to be responsible for low SCR Hg oxidation for this coal type. The test results indicated a strong effect of coal type on the extent of Hg oxidation. 16 refs., 4 figs., 3 tabs.

Lee, C.W.; Srivastava, R.K.; Ghorishi, S.B.; Karwowski, J.; Hastings, T.H.; Hirschi, J.C. [US Environmental Protection Agency, Triangle Park, NC (United States)

2006-05-15T23:59:59.000Z

358

Adsorption and desorption of sulfur dioxide on novel adsorbents for flue gas desulfurization. Final report, September 1, 1994--February 29, 1996  

Science Conference Proceedings (OSTI)

A sol-gel granulation method was developed to prepare spherical {gamma}-alumina granular supports and supported CuO granular sorbents for flue gas desulfurization. The prepared {gamma}-alumina supported CuO sorbents exhibit desirable pore structure and excellent mechanical properties. The sorbents contain higher loading (30-40 wt. %) of CuO dispersed in the monolayer or sub-monolayer form, giving rise to a larger SO{sub 2} sorption capacity ({gt}20 wt.%) and a faster sorption rate as compared to similar sorbents reported in the literature. With these excellent sulfation and mechanical properties, the sol-gel derived {gamma}-alumina supported CuO granular sorbents offer great potential for use in the dry, regenerative flue gas desulfurization process. Research efforts were also made to prepare DAY zeolite supported sorbents with various CuO contents by the microwave and conventional thermal dispersion methods at different conditions. Monolayer or sub-monolayer coating of Cu(NO{sub 3})sub 2 or CuO was achieved on several DAY supported sorbents by the microwave heating method but not by the conventional thermal dispersion method. The DAY zeolite supported CuO sorbents prepared by the microwave heating method can adsorb up to 15 wt.% of SO{sub 2}. The results obtained have demonstrated the feasibility of effective preparation of zeolite supported CuO sorbents by the microwave heating method.

Lin, Y.S.; Deng, S.G.

1996-08-05T23:59:59.000Z

359

Flue gas desulfurization  

DOE Patents (OSTI)

The invention involves a combustion process in which combustion gas containing sulfur oxide is directed past a series of heat exchangers to a stack and in which a sodium compound is added to the combustion gas in a temparature zone of above about 1400 K to form Na/sub 2/SO/sub 4/. Preferably, the temperature is above about 1800 K and the sodium compound is present as a vapor to provide a gas-gas reaction to form Na/sub 2/SO/sub 4/ as a liquid. Since liquid Na/sub 2/SO/sub 4/ may cause fouling of heat exchanger surfaces downstream from the combustion zone, the process advantageously includes the step of injecting a cooling gas downstream of the injection of the sodium compound yet upstream of one or more heat exchangers to cool the combustion gas to below about 1150 K and form solid Na/sub 2/SO/sub 4/. The cooling gas is preferably a portion of the combustion gas downstream which may be recycled for cooling. It is further advantageous to utilize an electrostatic precipitator downstream of the heat exchangers to recover the Na/sub 2/SO/sub 4/. It is also advantageous in the process to remove a portion of the combustion gas cleaned in the electrostatic precipitator and recycle that portion upstream to use as the cooling gas. 3 figures.

Im, K.H.; Ahluwalia, R.K.

1984-05-01T23:59:59.000Z

360

Integrated gasification-combined-cycle power plants - Performance and cost estimates  

SciTech Connect

Several studies of Integrated Gasification-combined-cycle (IGCC) power plants have indicated that these plants have the potential for providing performance and cost improvements over conventional coal-fired steam power plants with flue gas desulfurization. Generally, IGCC power plants have a higher energy-conversion efficiency, require less water, conform with existing environmental standards at lower cost, and are expected to convert coal to electricity at lower costs than coal-fired steam plants. This study compares estimated costs and performance of various IGCC plant design configurations. A second-law analysis identifies the real energy waste in each design configuration. In addition, a thermoeconomic analysis reveals the potential for reducing the cost of electricity generated by an IGCC power plant.

Tsatsaronis, G.; Tawfik, T.; Lin, L. (Tennessee State Univ., Nashville (USA))

1990-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Wind Integration Study Methods (Presentation)  

DOE Green Energy (OSTI)

This presentation provides an overview of common elements, differences, integration costs, and errors in integration analysis.

Milligan, M.; Kirby, B.

2011-04-01T23:59:59.000Z

362

Energy Systems Integration  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Systems Integration Systems Integration Ben Kroposki, PhD, PE Director, Energy Systems Integration National Renewable Energy Laboratory 2 Reducing investment risk and optimizing systems in a rapidly changing energy world * Increasing penetration of variable RE in grid * Increasing ultra high energy efficiency buildings and controllable loads * New data, information, communications and controls * Electrification of transportation and alternative fuels * Integrating energy storage (stationary and mobile) and thermal storage * Interactions between electricity/thermal/fuels/data pathways * Increasing system flexibility and intelligence Current Energy Systems Future Energy Systems Why Energy Systems Integration? 3 Energy Systems Integration Continuum Scale Appliance (Plug)

363

DEVELOPMENT OF ANALYTICAL METHODS FOR THE QUANTIFICATION OF THE CHEMICAL FORMS OF MERCURY AND OTHER TARGET POLLUTANTS IN COAL-FIRED BOILER FLUE GAS  

Science Conference Proceedings (OSTI)

Since approximately 55% of the electrical power produced in the U. S. is generated by coal-based power utility plants, there is serious concern about the massive amounts of coal combustion products emitted into the atmosphere annually. Furthermore, Title III of the 1990 Clean Air Act Amendments (CAAA) requires the measurement and inventory of a possible 189 hazardous air pollutants (HAPs) from any stationary source producing more than 10 tons per year of any one pollutant or more than 25 tons per year of total pollutants. Although power utilities are not presently included on the list of source categories, the CAAA requires the U. S. Environmental Protection Agency to carry out a study of emissions from electricity generation using fossil fuels. Since many of these HAPs are known to be present in coal derived flue gas, coal-fired electric power utilities may be subject to regulation following these studies if Congress considers it necessary. In a cooperative effort with the U. S. Environmental Protection Agency (EPA), the U. S. Department of Energy (DOE) through its Federal Energy Technology Center (FETC) initiated such a study in 1991. DOE-FETC commissioned five primary contractors to conduct emission studies at eight different coal-fired electric utilities. The eight sites represented a cross section of feed coal type, boiler designs, and particulate and gaseous pollutant control technologies. The major goal of these studies was to determine the sampling and analytical methodologies that could be used efficiently to perform these emission tests while producing representative and reliable emission data. The successful methodology could then be recommended to the EPA for use in compliance testing in the event the regulation of air toxic emissions from coal-fired power plants is implemented. A secondary purpose of the testing was to determine the effectiveness of the control technologies in reducing target hazardous air pollutants. Advanced Technology Systems, Inc. (ATS) as a secondary DOE contractor on this project, assessed the sampling and analytical plans and the emission reports of the five primary contractors to determine how successful the contractors were in satisfying their defined objectives. ATS identified difficulties and inconsistencies in a number of sampling and analytical methodologies in these studies. In particular there was uncertainty as to the validity of the sampling and analytical methods used to differentiate the chemical forms of mercury observed in coal flue gas. Considering the differences in the mercury species with regard to human toxicity, the rate of transport through the ecosystem and the design variations in possible emission control schemes, DOE sought an accurate and reliable means to identify and quantify the various mercury compounds emitted by coal-fired utility boilers. ATS, as a contractor for DOE, completed both bench- and pilot-scale studies on various mercury speciation methods. The final validation of the modified Ontario-Hydro Method, its acceptance by DOE and submission of the method for adoption by ASTM was a direct result of these studies carried out in collaboration with the University of North Dakota's Energy and Environmental Research Center (UNDEERC). This report presents the results from studies carried out at ATS in the development of analytical methods to identify and quantify various chemical species, particularly those of mercury, in coal derived flue gas. Laboratory- and pilot-scale studies, not only on mercury species, but also on other inorganics and organics present in coal combustion flue gas are reported.

Terence J. McManus, Ph.D.

1999-06-30T23:59:59.000Z

364

Development of a Novel Oxygen Supply Process and its Integration with an Oxy-Fuel Coal-Fired Boiler  

SciTech Connect

BOC, the world's second largest industrial gas company, has developed a novel high temperature sorption based technology referred to as CAR (Cyclic Autothermal Recovery) for oxygen production and supply to oxy-fuel boilers with flue gas recycle. This technology is based on sorption and storage of oxygen in a fixed bed containing mixed ionic and electronic conductor materials. The objective of the proposed work was to construct a CAR PDU that was capable of producing 10-scfm of oxygen, using steam or recycled flue gas as the sweep gas, and install it in the Combustion Test Facility. The unit was designed and fabricated at BOC/The Linde Group, Murray Hill, New Jersey. The unit was then shipped to WRI where the site had been prepared for the unit by installation of air, carbon dioxide, natural gas, nitrogen, computer, electrical and infrastructure systems. Initial experiments with the PDU consisted of flowing air into both sides of the absorption systems and using the air heaters to ramp up the bed temperatures. The two beds were tested individually to operational temperatures up to 900 C in air. The cycling process was tested where gases are flowed alternatively from the top then bottom of the beds. The PDU unit behaved properly with respect to flow, pressure and heat during tests. The PDU was advanced to the point where oxygen production testing could begin and integration to the combustion test facility could occur.

None

2006-12-31T23:59:59.000Z

365

Systems Integration Division Homepage  

Science Conference Proceedings (OSTI)

... systems integration and engineering, life cycle assessment, cyber-physical systems, productivity measurement, sustainability and energy efficiency. ...

2013-09-16T23:59:59.000Z

366

Relational measures and integration  

Science Conference Proceedings (OSTI)

Work in fuzzy modeling has recently made its way from the interval $[0,1]\\subseteq {\\mathord{\\rm I \\! R}}$ to the ordinal or even to the qualitative level. We proceed further and introduce relational measures and relational integration. First ideas of ... Keywords: Choquet integral, evidence and belief, measure, necessity, plausibility, possibility measures, relation algebra, relational, sugeno integral

Gunther Schmidt

2006-08-01T23:59:59.000Z

367

Fireside Corrosion in Oxy-Fuel Combustion of Coal  

SciTech Connect

Oxy-fuel combustion is based on burning fossil fuels in a mixture of recirculated flue gas and oxygen, rather than in air. An optimized oxy-combustion power plant will have ultra-low emissions since the flue gas that results from oxy-fuel combustion consists almost entirely of CO2 and water vapor. Once the water vapor is condensed, it is relatively easy to sequester the CO2 so that it does not escape into the atmosphere. A variety of laboratory tests comparing air-firing to oxy-firing conditions, and tests examining specific simpler combinations of oxidants, were conducted at 650-700 C. Alloys studied included model Fe-Cr and Ni-Cr alloys, commercial ferritic steels, austenitic steels, and nickel base superalloys. The observed corrosion behavior shows accelerated corrosion even with sulfate additions that remain solid at the tested temperatures, encapsulation of ash components in outer iron oxide scales, and a differentiation between oxy-fuel combustion flue gas recirculation choices.

Holcomb, Gordon R.; Tylczak, Joseph; Meier, G.H.; Jung. K.; Mu, N.; Yanar, N.M.; Pettit, F.S.

2012-08-01T23:59:59.000Z

368

Lighting Group: Controls: Systems Integration  

NLE Websites -- All DOE Office Websites (Extended Search)

Systems Integration Building Control Systems Integration Objective This research project investigates how diverse building control systems can be integrated to provide seamless...

369

Carbon Management Technologies for Sustainable Coal Utilization  

NLE Websites -- All DOE Office Websites (Extended Search)

Illinois power station with coal-fueled oxy- combustion * Utilize existing 200 MWe steam turbine & Meredosia plant infrastructure * Pipeline CO 2 30 miles to sequestration...

370

In-Situ Neutron Diffraction Study of Porous NiO-YSZ Composite ...  

Science Conference Proceedings (OSTI)

Presentation Title, In-Situ Neutron Diffraction Study of Porous NiO-YSZ Composite ... Gas Turbines of the Future: Hydrogen and Oxy-Combustion Environments.

371

--No Title--  

NLE Websites -- All DOE Office Websites (Extended Search)

6, 2012 Energy Department Announces Awards to Projects Advancing Innovative Clean Coal Technology Transformational Oxy-Combustion Technology Holds Promise for More Efficient and...

372

CX-003663: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exclusion Determination CX-003663: Categorical Exclusion Determination Oxy-combustion Oxygen Transport Membrane Development CX(s) Applied: B3.6 Date: 08272010...

373

Advanced Combustion  

Science Conference Proceedings (OSTI)

Topics covered in this presentation include: the continued importance of coal; related materials challenges; combining oxy-combustion & A-USC steam; and casting large superalloy turbine components.

Holcomb, Gordon R. [NETL

2013-03-05T23:59:59.000Z

374

Energy Department Announces Awards to Projects Advancing Innovative...  

NLE Websites -- All DOE Office Websites (Extended Search)

the selection of eight projects to advance the development of transformational oxy-combustion technologies capable of high-efficiency, low-cost carbon dioxide capture from...

375

CX-003675: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exclusion Determination CX-003675: Categorical Exclusion Determination Oxy-combustion Oxygen Transport Membrane Development CX(s) Applied: B3.6 Date: 09012010...

376

Page not found | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

CX-009297: Categorical Exclusion Determination Optimization of Pressurized Oxy-Combustion with Flameless Reactor - Phase I CX(s) Applied: A9 Date: 08312012 Location(s):...

377

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Plants Division 2012 10112 to 93012 Timothy Fout San Antonio, TX Novel Supercritical Carbon Dioxide Power Cycle Utilizing Pressurized Oxy-Combustion in Conjunction......

378

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

SCCExisting Plants Division 2012 9 months Timothy Fout Pittsburgh, PA Novel Supercritical Carbon Dioxide Power Cycle Utilizing Pressurized Oxy-Combustion in Conjunction......

379

Title: Does California Need Carbon Capture & Sequestration? ...  

NLE Websites -- All DOE Office Websites (Extended Search)

(CES) plans expansion from existing 5 megawatt (MWe) pilot ZEPP plant to 170 megawatts thermal (MWth) * ZEPP power plant will use oxy- combustion technology (and initially fire...

380

Constructing a Validated Deformation Mechanisms Map Using Low ...  

Science Conference Proceedings (OSTI)

... Waspaloy and validated by comparison with a collection of experimental data obtained from the literature. ... Fireside Corrosion in the Oxy-Combustion of Coal.

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

CX-009298: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

8: Categorical Exclusion Determination CX-009298: Categorical Exclusion Determination Optimization of Pressurized Oxy-Combustion with Flameless Reactor - Phase I CX(s) Applied:...

382

CX-009297: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

7: Categorical Exclusion Determination CX-009297: Categorical Exclusion Determination Optimization of Pressurized Oxy-Combustion with Flameless Reactor - Phase I CX(s) Applied: A9...

383

CX-009299: Categorical Exclusion Determination | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

9: Categorical Exclusion Determination CX-009299: Categorical Exclusion Determination Optimization of Pressurized Oxy-Combustion with Flameless Reactor - Phase I CX(s) Applied:...

384

Two Line Subject Title One Line Title  

NLE Websites -- All DOE Office Websites (Extended Search)

2-Materials for Advanced Boiler and Oxy- combustion Systems (NETL-US)," US-UK Energy RTD Collaboration 2009-2013: Advanced Materials, Annual Report, DOENETL- 20121591, April...

385

Shared Intellect * Shared Laboratories...  

NLE Websites -- All DOE Office Websites (Extended Search)

separation of oxygen from air, which has the potential to displace cryogenic air distillation as the method for producing oxygen for oxy-combustion power generation. This...

386

--No Title--  

NLE Websites -- All DOE Office Websites (Extended Search)

separation of oxygen from air, which has the potential to displace cryogenic air distillation as the method for producing oxygen for oxy-combustion power generation. This...

387

2012 SG Peer Review - Integrated, Automated DG Technologies Demonstrat...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

for boiler flue gas heat recovery - Advancing energy storage technologies - New Flywheel storage technology * Total Cost - 1,806K * 100 kW of Wind, 100 kW of waste heat...

388

Integrability vs Quantum Thermalization  

E-Print Network (OSTI)

Non-integrability is often taken as a prerequisite for quantum thermalization. Still, a generally accepted definition of quantum integrability is lacking. With the basis in the driven Rabi model we discuss this careless usage of the term "integrability" in connection to quantum thermalization. The model would be classified as non-integrable according to the most commonly used definitions, for example, the only preserved quantity is the total energy. Despite this fact, a thorough analysis conjectures that the system will not thermalize. Thus, our findings suggest first of all (i) that care should be paid when linking non-integrability with thermalization, and secondly (ii) that the standardly used definitions for quantum integrability are unsatisfactory.

Jonas Larson

2013-04-12T23:59:59.000Z

389

Integrated Safety Management (ISM)  

NLE Websites -- All DOE Office Websites (Extended Search)

Integrated Safety Management Integrated Safety Management Home ISM Policy ISM Champions ISM Workshops Resources Archives Contact Us Health and Safety HSS Logo Integrated Safety Management (ISM) ism logo Welcome to the Department of Energy's Office of Health, Safety and Security (HSS) Integrated Safety Management (ISM) Web Site. The Department and its contractors remain firmly committed to ISM as first defined in 1996. The objective of ISM is to perform work in a safe and environmentally sound manner. More specifically, as described in DOE P 450.4, Safety Management System Policy: "The Department and Contractors must systematically integrate safety into management and work practices at all levels so that missions are accomplished while protecting the public, the worker, and the environment. This is to be accomplished through effective integration of safety management into all facets of work planning and execution." "

390

Advanced Integrated Systems Technology Development  

E-Print Network (OSTI)

Research Energy Systems Integration Environmentallyenergy use, combined with the capability of the BMS system, including alarms to identify anomalies. Integration

2013-01-01T23:59:59.000Z

391

Infrastructure for Integrated Electronics Design & ...  

Science Conference Proceedings (OSTI)

Infrastructure for Integrated Electronics Design & Manufacturing (IIEDM) Project. ... designed to support distributed supply chain integration and e ...

2010-11-05T23:59:59.000Z

392

Computer Integrated Building Processes Group  

Science Conference Proceedings (OSTI)

... Laboratory effective in October 2011, the Computer Integrated Building Processes Group ... Chris Brown) are now in the Systems Integration Division. ...

2013-07-12T23:59:59.000Z

393

Integrated Biosystems for Sustainable Development  

E-Print Network (OSTI)

Integrated biosystems for sustainable development Proceedings of the InFoRM 2000 National Workshop on Integrated

Kev Warburton; Usha Pillai-mcgarry; Deborah Ramage; No Ms; Dr. Kev Warburton

2002-01-01T23:59:59.000Z

394

Distributed Resource Integration Framework  

Science Conference Proceedings (OSTI)

This report defines a framework for assessing current issues and considerations associated with the deployment and operation of distributed resources. The framework is a guide that can assist utility personnel, distributed resource owners, and other stakeholders in planning integration projects and in relating different integration projects to one another. The framework provides a structured organization of the various elements associated with distributed resource integration, including regulatory, busin...

2009-12-23T23:59:59.000Z

395

Substation Data Integration  

Science Conference Proceedings (OSTI)

The purpose of the project was to implement a field demonstration of automated substation data integration. To achieve the goal of the smart grid, it will be necessary to integrate substation intelligent electronic device (IED) data into a data warehouse or data mart. Converting data to information to allow improved decision making requires automation, which is referred to as an information smart approach. The report discusses automated integration of data from substation IEDs and automated analysis of r...

2010-12-06T23:59:59.000Z

396

Integrated Energy System with Beneficial Carbon Dioxide (CO2) Use - Final Scientific/Technical Report  

DOE Green Energy (OSTI)

This report presents an integrated energy system that combines the production of substitute natural gas through coal hydrogasification with an algae process for beneficial carbon dioxide (CO2) use and biofuel production (funded under Department of Energy (DOE) contract DE-FE0001099). The project planned to develop, test, operate and evaluate a 2 ton-per-day coal hydrogasification plant and 25-acre algae farm at the Arizona Public Service (APS) 1000 Megawatt (MW) Cholla coal-fired power plant in Joseph City, Arizona. Conceptual design of the integrated system was undertaken with APS partners Air Liquide (AL) and Parsons. The process engineering was separated into five major areas: flue gas preparation and CO2 delivery, algae farming, water management, hydrogasification, and biofuel production. The process flow diagrams, energy and material balances, and preliminary major equipment needs for each major area were prepared to reflect integrated process considerations and site infrastructure design basis. The total project also included research and development on a bench-scale hydrogasifier, one-dimensional (1-D) kinetic-model simulation, extensive algae stressing, oil extraction, lipid analysis and a half-acre algae farm demonstration at APS?s Redhawk testing facility. During the project, a two-acre algae testing facility with a half-acre algae cultivation area was built at the APS Redhawk 1000 MW natural gas combined cycle power plant located 55 miles west of Phoenix. The test site integrated flue gas delivery, CO2 capture and distribution, algae cultivation, algae nursery, algae harvesting, dewatering and onsite storage as well as water treatment. The site environmental, engineering, and biological parameters for the cultivators were monitored remotely. Direct biodiesel production from biomass through an acid-catalyzed transesterification reaction and a supercritical methanol transesterification reaction were evaluated. The highest oil-to-biodiesel conversion of 79.9% was achieved with a stressed algae sample containing 40% algae oil. The effort concluded that producing biodiesel directly from the algae biomass could be an efficient, cost-effective and readily scalable way to produce biodiesel by eliminating the oil extraction process.

Sun, Xiaolei; Rink, Nancy T

2011-04-29T23:59:59.000Z

397

Integrated Computational Materials Education  

Science Conference Proceedings (OSTI)

This short course is based on the Summer School for Integrated Computational Materials Education, which was developed to meet this need. We will present a...

398

Software Component Integration Testing  

Science Conference Proceedings (OSTI)

... a combination of off-the-shelf components, with new components integrated to satisfy ... oriented, that is, it consists of objects with state and behavior. ...

2011-12-02T23:59:59.000Z

399

Grid Integration Group  

NLE Websites -- All DOE Office Websites (Extended Search)

Grid Integration Group The Demand Response Research Center (DRRC) conducts research that advances the near-term adoption of demand response (DR) technologies, policies, programs,...

400

Integrated waste management.  

E-Print Network (OSTI)

??Integrated waste management is considered from a systems approach, with a particular emphasis on advancing sustainability. The focus of the thesis is to examine the (more)

Seadon, Jeffrey Keith

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

FIELD TEST PROGRAM FOR LONG-TERM OPERATION OF A COHPAC SYSTEM FOR REMOVING MERCURY FROM COAL-FIRED FLUE GAS  

SciTech Connect

With the Nation's coal-burning utilities facing the possibility of tighter controls on mercury pollutants, the U.S. Department of Energy is funding projects that could offer power plant operators better ways to reduce these emissions at much lower costs. Sorbent injection technology represents one of the simplest and most mature approaches to controlling mercury emissions from coal-fired boilers. It involves injecting a solid material such as powdered activated carbon into the flue gas. The gas-phase mercury in the flue gas contacts the sorbent and attaches to its surface. The sorbent with the mercury attached is then collected by the existing particle control device along with the other solid material, primarily fly ash. During 2001, ADA Environmental Solutions (ADA-ES) conducted a full-scale demonstration of sorbent-based mercury control technology at the Alabama Power E.C. Gaston Station (Wilsonville, AL). This unit burns a low-sulfur bituminous coal and uses a hot-side electrostatic precipitator (ESP) in combination with a Compact Hybrid Particulate Collector (COHPAC{trademark}) baghouse to collect fly ash. The majority of the fly ash is collected in the ESP with the residual being collected in the COHPAC{trademark} baghouse. Activated carbon was injected between the ESP and COHPAC{trademark} units to collect the mercury. Short-term mercury removal levels in excess of 90% were achieved using the COHPAC{trademark} unit. The test also showed that activated carbon was effective in removing both forms of mercury--elemental and oxidized. However, a great deal of additional testing is required to further characterize the capabilities and limitations of this technology relative to use with baghouse systems such as COHPAC{trademark}. It is important to determine performance over an extended period of time to fully assess all operational parameters. The project described in this report focuses on fully demonstrating sorbent injection technology at a coal-fired power generating plant that is equipped with a COHPAC{trademark} system. The overall objective is to evaluate the long-term effects of sorbent injection on mercury capture and COHPAC{trademark} performance. The work is being done on one-half of the gas stream at Alabama Power Company's Plant Gaston Unit 3 (nominally 135 MW). Data from the testing will be used to determine: (1) If sorbent injection into a high air-to-cloth ratio baghouse is a viable, long-term approach for mercury control; and (2) Design criteria and costs for new baghouse/sorbent injection systems that will use a similar, polishing baghouse (TOXECON{trademark}) approach.

Jean Bustard; Charles Lindsey; Paul Brignac; Travis Starns; Sharon Sjostrom; Trent Taylor; Cindy Larson

2004-01-29T23:59:59.000Z

402

FIELD TEST PROGRAM FOR LONG-TERM OPERATION OF A COHPAC SYSTEM FOR REMOVING MERCURY FROM COAL-FIRED FLUE GAS  

SciTech Connect

With the Nation's coal-burning utilities facing the possibility of tighter controls on mercury pollutants, the U.S. Department of Energy is funding projects that could offer power plant operators better ways to reduce these emissions at much lower costs. Sorbent injection technology represents one of the simplest and most mature approaches to controlling mercury emissions from coal-fired boilers. It involves injecting a solid material such as powdered activated carbon into the flue gas. The gas-phase mercury in the flue gas contacts the sorbent and attaches to its surface. The sorbent with the mercury attached is then collected by the existing particle control device along with the other solid material, primarily fly ash. During 2001, ADA Environmental Solutions (ADA-ES) conducted a full-scale demonstration of sorbent-based mercury control technology at the Alabama Power E.C. Gaston Station (Wilsonville, AL). This unit burns a low-sulfur bituminous coal and uses a hot-side electrostatic precipitator (ESP) in combination with a Compact Hybrid Particulate Collector (COHPAC{trademark}) baghouse to collect fly ash. The majority of the fly ash is collected in the ESP with the residual being collected in the COHPAC baghouse. Activated carbon was injected between the ESP and COHPAC units to collect the mercury. Short-term mercury removal levels in excess of 90% were achieved using the COHPAC unit. The test also showed that activated carbon was effective in removing both forms of mercury-elemental and oxidized. However, a great deal of additional testing is required to further characterize the capabilities and limitations of this technology relative to use with baghouse systems such as COHPAC. It is important to determine performance over an extended period of time to fully assess all operational parameters. The project described in this report focuses on fully demonstrating sorbent injection technology at a coal-fired power generating plant that is equipped with a COHPAC system. The overall objective is to evaluate the long-term effects of sorbent injection on mercury capture and COHPAC performance. The work is being done on one-half of the gas stream at Alabama Power Company's Plant Gaston Unit 3 (nominally 135 MW). Data from the testing will be used to determine: (1) If sorbent injection into a high air-to-cloth ratio baghouse is a viable, long-term approach for mercury control; and (2) Design criteria and costs for new baghouse/sorbent injection systems that will use a similar, polishing baghouse (TOXECON{trademark}) approach.

Jean Bustard; Charles Lindsey; Paul Brignac; Travis Starns; Sharon Sjostrom; Trent Taylor; Cindy Larson

2003-10-31T23:59:59.000Z

403

Field Test Program for Long-Term Operation of a COHPAC System for Removing Mercury from Coal-Fired Flue Gas  

Science Conference Proceedings (OSTI)

With the Nation's coal-burning utilities facing the possibility of tighter controls on mercury pollutants, the U.S. Department of Energy is funding projects that could offer power plant operators better ways to reduce these emissions at much lower costs. Sorbent injection technology represents one of the simplest and most mature approaches to controlling mercury emissions from coal-fired boilers. It involves injecting a solid material such as powdered activated carbon into the flue gas. The gas-phase mercury in the flue gas contacts the sorbent and attaches to its surface. The sorbent with the mercury attached is then collected by the existing particle control device along with the other solid material, primarily fly ash. During 2001, ADA Environmental Solutions (ADA-ES) conducted a full-scale demonstration of sorbent-based mercury control technology at the Alabama Power E.C. Gaston Station (Wilsonville, Alabama). This unit burns a low-sulfur bituminous coal and uses a hot-side electrostatic precipitator (ESP) in combination with a Compact Hybrid Particulate Collector (COHPAC{reg_sign}) baghouse to collect fly ash. The majority of the fly ash is collected in the ESP with the residual being collected in the COHPAC{reg_sign} baghouse. Activated carbon was injected between the ESP and COHPAC{reg_sign} units to collect the mercury. Short-term mercury removal levels in excess of 90% were achieved using the COHPAC{reg_sign} unit. The test also showed that activated carbon was effective in removing both forms of mercury-elemental and oxidized. However, a great deal of additional testing is required to further characterize the capabilities and limitations of this technology relative to use with baghouse systems such as COHPAC{reg_sign}. It is important to determine performance over an extended period of time to fully assess all operational parameters. The project described in this report focuses on fully demonstrating sorbent injection technology at a coal-fired power generating plant that is equipped with a COHPAC{reg_sign} system. The overall objective is to evaluate the long-term effects of sorbent injection on mercury capture and COHPAC{reg_sign} performance. The work is being done on one-half of the gas stream at Alabama Power Company's Plant Gaston Unit 3 (nominally 135 MW). Data from the testing will be used to determine: (1) If sorbent injection into a high air-to-cloth ratio baghouse is a viable, long-term approach for mercury control; and (2) Design criteria and costs for new baghouse/sorbent injection systems that will use a similar, polishing baghouse (TOXECON{trademark}) approach.

Jean Bustard; Charles Lindsey; Paul Brignac; Travis Starns; Sharon Sjostrom; Trent Taylor; Cindy Larson

2004-08-06T23:59:59.000Z

404

Field Test Program for Long-Term Operation of a COHPAC System for Removing Mercury from Coal-Fired Flue Gas  

SciTech Connect

With the Nation's coal-burning utilities facing the possibility of tighter controls on mercury pollutants, the U.S. Department of Energy is funding projects that could offer power plant operators better ways to reduce these emissions at much lower costs. Sorbent injection technology represents one of the simplest and most mature approaches to controlling mercury emissions from coal-fired boilers. It involves injecting a solid material such as powdered activated carbon into the flue gas. The gas-phase mercury in the flue gas contacts the sorbent and attaches to its surface. The sorbent with the mercury attached is then collected by the existing particle control device along with the other solid material, primarily fly ash. During 2001, ADA Environmental Solutions (ADA-ES) conducted a full-scale demonstration of sorbent-based mercury control technology at the Alabama Power E.C. Gaston Station (Wilsonville, Alabama). This unit burns a low-sulfur bituminous coal and uses a hot-side electrostatic precipitator (ESP) in combination with a Compact Hybrid Particulate Collector (COHPAC{reg_sign}) baghouse to collect fly ash. The majority of the fly ash is collected in the ESP with the residual being collected in the COHPAC{reg_sign} baghouse. Activated carbon was injected between the ESP and COHPAC{reg_sign} units to collect the mercury. Short-term mercury removal levels in excess of 90% were achieved using the COHPAC{reg_sign} unit. The test also showed that activated carbon was effective in removing both forms of mercury-elemental and oxidized. However, a great deal of additional testing is required to further characterize the capabilities and limitations of this technology relative to use with baghouse systems such as COHPAC{reg_sign}. It is important to determine performance over an extended period of time to fully assess all operational parameters. The project described in this report focuses on fully demonstrating sorbent injection technology at a coal-fired power generating plant that is equipped with a COHPAC{reg_sign} system. The overall objective is to evaluate the long-term effects of sorbent injection on mercury capture and COHPAC{reg_sign} performance. The work is being done on one-half of the gas stream at Alabama Power Company's Plant Gaston Unit 3 (nominally 135 MW). Data from the testing will be used to determine: (1) If sorbent injection into a high air-to-cloth ratio baghouse is a viable, long-term approach for mercury control; and (2) Design criteria and costs for new baghouse/sorbent injection systems that will use a similar, polishing baghouse (TOXECON{trademark}) approach.

Jean Bustard; Charles Lindsey; Paul Brignac; Travis Starns; Sharon Sjostrom; Trent Taylor; Cindy Larson

2004-10-25T23:59:59.000Z

405

FIELD TEST PROGRAM FOR LONG-TERM OPERATION OF A COHPAC SYSTEM FOR REMOVING MERCURY FROM COAL-FIRED FLUE GAS  

SciTech Connect

With the Nation's coal-burning utilities facing the possibility of tighter controls on mercury pollutants, the U.S. Department of Energy is funding projects that could offer power plant operators better ways to reduce these emissions at much lower costs. Sorbent injection technology represents one of the simplest and most mature approaches to controlling mercury emissions from coal-fired boilers. It involves injecting a solid material such as powdered activated carbon into the flue gas. The gas phase mercury in the flue gas contacts the sorbent and attaches to its surface. The sorbent with the mercury attached is then collected by the existing particle control device along with the other solid material, primarily fly ash. During 2001 ADA Environmental Solutions (ADA-ES) conducted a full-scale demonstration of sorbent-based mercury control technology at the Alabama Power E.C. Gaston Station (Wilsonville, AL). This unit burns a low-sulfur bituminous coal and uses a hot-side electrostatic precipitator (ESP) in combination with a Compact Hybrid Particulate Collector (COHPAC) baghouse to collect fly ash. The majority of the fly ash is collected in the ESP with the residual being collected in the COHPAC baghouse. Activated carbon was injected between the ESP and COHPAC units to collect the mercury. Short-term mercury removal levels in excess of 90% were achieved using the COHPAC unit. The test also showed that activated carbon was effective in removing both forms of mercury: elemental and oxidized. However, a great deal of additional testing is required to further characterize the capabilities and limitations of this technology relative to use with baghouse systems such as COHPAC. It is important to determine performance over an extended period of time to fully assess all operational parameters. The project described in this report focuses on fully demonstrating sorbent injection technology at a coal-fired power generating plant that is equipped with a COHPAC system. The overall objective is to evaluate the long-term effects of sorbent injection on mercury capture and COHPAC performance. The work is being done on one-half of the gas stream at Alabama Power Company's Plant Gaston Unit 3 (nominally 135 MW). Data from the testing will be used to determine: (1) If sorbent injection into a high air-to-cloth ratio baghouse is a viable, long-term approach for mercury control; and (2) Design criteria and costs for new baghouse/sorbent injection systems that will use a similar, polishing baghouse (TOXECON) approach.

Jean Bustard; Charles Lindsey; Paul Brignac; Travis Starns; Sharon Sjostrom; Tom Millar

2003-07-30T23:59:59.000Z

406

Field Test Program for Long-Term Operation of a COHPAC System for Removing Mercury from Coal-Fired Flue Gas  

Science Conference Proceedings (OSTI)

With the Nation's coal-burning utilities facing the possibility of tighter controls on mercury pollutants, the U.S. Department of Energy is funding projects that could offer power plant operators better ways to reduce these emissions at much lower costs. Sorbent injection technology represents one of the simplest and most mature approaches to controlling mercury emissions from coal-fired boilers. It involves injecting a solid material such as powdered activated carbon into the flue gas. The gas-phase mercury in the flue gas contacts the sorbent and attaches to its surface. The sorbent with the mercury attached is then collected by the existing particle control device along with the other solid material, primarily fly ash. During 2001, ADA Environmental Solutions (ADA-ES) conducted a full-scale demonstration of sorbent-based mercury control technology at the Alabama Power E.C. Gaston Station (Wilsonville, Alabama). This unit burns a low-sulfur bituminous coal and uses a hot-side electrostatic precipitator (ESP) in combination with a Compact Hybrid Particulate Collector (COHPAC{reg_sign}) baghouse to collect fly ash. The majority of the fly ash is collected in the ESP with the residual being collected in the COHPAC{reg_sign} baghouse. Activated carbon was injected between the ESP and COHPAC{reg_sign} units to collect the mercury. Short-term mercury removal levels in excess of 90% were achieved using the COHPAC{reg_sign} unit. The test also showed that activated carbon was effective in removing both forms of mercury-elemental and oxidized. However, a great deal of additional testing is required to further characterize the capabilities and limitations of this technology relative to use with baghouse systems such as COHPAC{reg_sign}. It is important to determine performance over an extended period of time to fully assess all operational parameters. The project described in this report focuses on fully demonstrating sorbent injection technology at a coal-fired power generating plant that is equipped with a COHPAC{reg_sign} system. The overall objective is to evaluate the long-term effects of sorbent injection on mercury capture and COHPAC{reg_sign} performance. The work is being done on one-half of the gas stream at Alabama Power Company's Plant Gaston Unit 3 (nominally 135 MW). Data from the testing will be used to determine: (1) If sorbent injection into a high air-to-cloth ratio baghouse is a viable, long-term approach for mercury control; and (2) Design criteria and costs for new baghouse/sorbent injection systems that will use a similar, polishing baghouse (TOXECON{trademark}) approach.

Jean Bustard; Charles Lindsey; Paul Brignac; Travis Starns; Sharon Sjostrom; Cindy Larson

2006-01-27T23:59:59.000Z

407

Field Test Program for Long-Term Operation of a COHPAC System for Removing Mercury from Coal-Fired Flue Gas  

Science Conference Proceedings (OSTI)

With the Nation's coal-burning utilities facing the possibility of tighter controls on mercury pollutants, the U.S. Department of Energy is funding projects that could offer power plant operators better ways to reduce these emissions at much lower costs. Sorbent injection technology represents one of the simplest and most mature approaches to controlling mercury emissions from coal-fired boilers. It involves injecting a solid material such as powdered activated carbon into the flue gas. The gas-phase mercury in the flue gas contacts the sorbent and attaches to its surface. The sorbent with the mercury attached is then collected by the existing particle control device along with the other solid material, primarily fly ash. During 2001, ADA Environmental Solutions (ADA-ES) conducted a full-scale demonstration of sorbent-based mercury control technology at the Alabama Power E.C. Gaston Station (Wilsonville, Alabama). This unit burns a low-sulfur bituminous coal and uses a hot-side electrostatic precipitator (ESP) in combination with a Compact Hybrid Particulate Collector (COHPAC{reg_sign}) baghouse to collect fly ash. The majority of the fly ash is collected in the ESP with the residual being collected in the COHPAC{reg_sign} baghouse. Activated carbon was injected between the ESP and COHPAC{reg_sign} units to collect the mercury. Short-term mercury removal levels in excess of 90% were achieved using the COHPAC{reg_sign} unit. The test also showed that activated carbon was effective in removing both forms of mercury-elemental and oxidized. However, a great deal of additional testing is required to further characterize the capabilities and limitations of this technology relative to use with baghouse systems such as COHPAC{reg_sign}. It is important to determine performance over an extended period of time to fully assess all operational parameters. The project described in this report focuses on fully demonstrating sorbent injection technology at a coal-fired power generating plant that is equipped with a COHPAC{reg_sign} system. The overall objective is to evaluate the long-term effects of sorbent injection on mercury capture and COHPAC{reg_sign} performance. The work is being done on one-half of the gas stream at Alabama Power Company's Plant Gaston Unit 3 (nominally 135 MW). Data from the testing will be used to determine: (1) If sorbent injection into a high air-to-cloth ratio baghouse is a viable, long-term approach for mercury control; and (2) Design criteria and costs for new baghouse/sorbent injection systems that will use a similar, polishing baghouse (TOXECON{trademark}) approach.

Jean Bustard; Charles Lindsey; Paul Brignac; Travis Starns; Sharon Sjostrom; Cindy Larson

2006-04-24T23:59:59.000Z

408

Field Test Program for Long-Term Operation of a COHPAC System for Removing Mercury from Coal-Fired Flue Gas  

Science Conference Proceedings (OSTI)

With the Nation's coal-burning utilities facing the possibility of tighter controls on mercury pollutants, the U.S. Department of Energy is funding projects that could offer power plant operators better ways to reduce these emissions at much lower costs. Sorbent injection technology represents one of the simplest and most mature approaches to controlling mercury emissions from coal-fired boilers. It involves injecting a solid material such as powdered activated carbon into the flue gas. The gas-phase mercury in the flue gas contacts the sorbent and attaches to its surface. The sorbent with the mercury attached is then collected by the existing particle control device along with the other solid material, primarily fly ash. During 2001, ADA Environmental Solutions (ADA-ES) conducted a full-scale demonstration of sorbent-based mercury control technology at the Alabama Power E.C. Gaston Station (Wilsonville, Alabama). This unit burns a low-sulfur bituminous coal and uses a hot-side electrostatic precipitator (ESP) in combination with a Compact Hybrid Particulate Collector (COHPAC{reg_sign}) baghouse to collect fly ash. The majority of the fly ash is collected in the ESP with the residual being collected in the COHPAC{reg_sign} baghouse. Activated carbon was injected between the ESP and COHPAC{reg_sign} units to collect the mercury. Short-term mercury removal levels in excess of 90% were achieved using the COHPAC{reg_sign} unit. The test also showed that activated carbon was effective in removing both forms of mercury-elemental and oxidized. However, a great deal of additional testing is required to further characterize the capabilities and limitations of this technology relative to use with baghouse systems such as COHPAC{reg_sign}. It is important to determine performance over an extended period of time to fully assess all operational parameters. The project described in this report focuses on fully demonstrating sorbent injection technology at a coal-fired power generating plant that is equipped with a COHPAC{reg_sign} system. The overall objective is to evaluate the long-term effects of sorbent injection on mercury capture and COHPAC{reg_sign} performance. The work is being done on one-half of the gas stream at Alabama Power Company's Plant Gaston Unit 3 (nominally 135 MW). Data from the testing will be used to determine: (1) If sorbent injection into a high air-to-cloth ratio baghouse is a viable, long-term approach for mercury control; and (2) Design criteria and costs for new baghouse/sorbent injection systems that will use a similar, polishing baghouse (TOXECON{trademark}) approach.

Jean Bustard; Charles Lindsey; Paul Brignac; Travis Starns; Sharon Sjostrom; Cindy Larson

2005-10-24T23:59:59.000Z

409

DEVELOPMENT OF NOVEL CERAMIC NANOFILM-FIBER INTEGRATED OPTICAL SENSORS FOR RAPID DETECTION OF COAL DERIVED SYNTHESIS GAS  

DOE Green Energy (OSTI)

The overall goal of this project is to conduct fundamental studies on advanced ceramic materials and fiber optic devices for developing new types of high temperature (>500{degree}C) fiber optic chemical sensors (FOCS) for monitoring fossil (mainly coal) and biomass derived gases in power plants. The primary technical objective is to investigate and demonstrate the nanocrystalline doped-ceramic thin film enabled FOCS that possess desired stability, sensitivity and selectivity for in-situ, rapid gas detection in the syngas streams from gasification and combustion flue gases. This report summarizes research works of two integrated parts: (1) development of metal oxide solid thin films as sensing materials for detection and measurement of important gas components relevant to the coal- and biomass-derived syngas and combustion gas streams at high temperatures; and (2) development of fiber optic devices that are potentially useful for constructing FOCS in combination with the solid oxide thin films identified in this program.

Junhang Dong; Hai Xiao; Xiling Tang; Hongmin Jiang; Kurtis Remmel; Amardeep Kaur

2012-09-30T23:59:59.000Z

410

FCT Technology Validation: Integrated Projects  

NLE Websites -- All DOE Office Websites (Extended Search)

Integrated Projects to Integrated Projects to someone by E-mail Share FCT Technology Validation: Integrated Projects on Facebook Tweet about FCT Technology Validation: Integrated Projects on Twitter Bookmark FCT Technology Validation: Integrated Projects on Google Bookmark FCT Technology Validation: Integrated Projects on Delicious Rank FCT Technology Validation: Integrated Projects on Digg Find More places to share FCT Technology Validation: Integrated Projects on AddThis.com... Home Transportation Projects Stationary/Distributed Generation Projects Integrated Projects DOE Projects Non-DOE Projects Quick Links Hydrogen Production Hydrogen Delivery Hydrogen Storage Fuel Cells Manufacturing Codes & Standards Education Systems Analysis Contacts Integrated Projects To maximize overall system efficiencies, reduce costs, and optimize

411

Water Waves and Integrability  

E-Print Network (OSTI)

The Euler's equations describe the motion of inviscid fluid. In the case of shallow water, when a perturbative asymtotic expansion of the Euler's equations is taken (to a certain order of smallness of the scale parameters), relations to certain integrable equations emerge. Some recent results concerning the use of integrable equation in modeling the motion of shallow water waves are reviewed in this contribution.

Rossen I. Ivanov

2007-07-12T23:59:59.000Z

412

Systems Integration (Fact Sheet)  

DOE Green Energy (OSTI)

The Systems Integration (SI) subprogram works closely with industry, universities, and the national laboratories to overcome technical barriers to the large-scale deployment of solar technologies. To support these goals, the subprogram invests primarily in four areas: grid integration, technology validation, solar resource assessment, and balance of system development.

Not Available

2011-10-01T23:59:59.000Z

413

Management of dry flue gas desulfurization by-products in underground mines. Quarterly technical progress report, [October 1, 1993--December 31, 1993  

Science Conference Proceedings (OSTI)

The ``Management of Dry Flue Gas Desulfurization By-Products in Underground Mines`` program is one of the largest programs ever undertaken by the Mining Engineering Department of Southern Illinois university, both in terms of complexity and in terms of funding. Total funding over the expected four-year extent of the program, including both Department of Energy, matching Southern Illinois University funds, and contributed funds, this program exceeds three million dollars. The number of cooperating organizations adds to the management complexity of the program. It was believed, therefore, that sound management plan and management base is essential for the efficient and effective conduct of the program. This first quarter period (i.e., October 1--December 31, 1993) was developed to establishing the management base, developing a sound management plan, developing a test plan, and developing sound fiscal management and control. Actual technical operations, such as residue sample acquisition, residue analyses, groundwater sample acquisition and analyses, and material handling studies will get underway early in the next quarter (i.e., January 1--March 31, 1994). Some early results of residue analyses and groundwater analyses should be available by the end of the second quarter. These results will be reported in the next Technical Progress Report.

Thomasson, E.M.; Chugh, Y.P.; Esling, S.; Honaker, R.; Paul, B.; Sevin, H.

1994-01-01T23:59:59.000Z

414

High-volume, high-value usage of flue gas desulfurization (FGD) by-products in underground mines - Phase I: Laboratory investigations. Quarterly report, October 1993--December 1993  

SciTech Connect

This project proposes to use pneumatically or hydraulically emplaced dry-flue gas desulfurization (FGD) by-products to backfill the adits left by highwall mining. Backfilling highwall mine adits with dry-FGD materials is technically attractive. The use of an active highwall mine would allow the dry-FGD material to be brought in using the same transportation network used to move the coal out, eliminating the need to recreated the transportation infrastructure, thereby saving costs. Activities during the period included the negotiations leading to the final cooperative agreement for the project and the implementation of the necessary instruments at the University of Kentucky to administer the project. Early in the negotiations, a final agreement on a task structure was reached and a milestone plan was filed. A review was initiated of the original laboratory plan as presented in the proposal, and tentative modifications were developed. Selection of a mine site was made early; the Pleasant Valley mine in Greenup County was chosen. Several visits were made to the mine site to begin work on the hydrologic monitoring plan. The investigation of the types of permits needed to conduct the project was initiated. Considerations concerning the acceptance and implementation of technologies led to the choice of circulating fluidized bed ash as the primary material for the study. Finally, the membership of a Technical Advisory Committee for the study was assembled.

Not Available

1994-03-01T23:59:59.000Z

415

Packed-Bed Reactor Study of NETL Sample 196c for the Removal of Carbon Dioxide from Simulated Flue Gas Mixture  

Science Conference Proceedings (OSTI)

An amine-based solid sorbent process to remove CO2 from flue gas has been investigated. The sorbent consists of polyethylenimine (PEI) immobilized onto silica (SiO2) support. Experiments were conducted in a packed-bed reactor and exit gas composition was monitored using mass spectrometry. The effects of feed gas composition (CO2 and H2O), temperature, and simulated steam regeneration were examined for both the silica support as well as the PEI-based sorbent. The artifact of the empty reactor was also quantified. Sorbent CO2 capacity loading was compared to thermogravimetric (TGA) results to further characterize adsorption isotherms and better define CO2 working capacity. Sorbent stability was monitored by periodically repeating baseline conditions throughout the parametric testing and replacing with fresh sorbent as needed. The concept of the Basic Immobilized Amine Sorbent (BIAS) Process using this sorbent within a system where sorbent continuously flows between the absorber and regenerator was introduced. The basic tenet is to manipulate or control the level of moisture on the sorbent as it travels around the sorbent circulation path between absorption and regeneration stages to minimize its effect on regeneration heat duty.

Hoffman, James S.; Hammache, Sonia; Gray, McMahan L.; Fauth Daniel J.; Pennline, Henry W.

2012-04-24T23:59:59.000Z

416

Integrated assessment briefs  

Science Conference Proceedings (OSTI)

Integrated assessment can be used to evaluate and clarify resource management policy options and outcomes for decision makers. The defining characteristics of integrated assessment are (1) focus on providing information and analysis that can be understood and used by decision makers rather than for merely advancing understanding and (2) its multidisciplinary approach, using methods, styles of study, and considerations from a broader variety of technical areas than would typically characterize studies produced from a single disciplinary standpoint. Integrated assessment may combine scientific, social, economic, health, and environmental data and models. Integrated assessment requires bridging the gap between science and policy considerations. Because not everything can be valued using a single metric, such as a dollar value, the integrated assessment process also involves evaluating trade-offs among dissimilar attributes. Scientists at Oak Ridge National Laboratory (ORNL) recognized the importance and value of multidisciplinary approaches to solving environmental problems early on and have pioneered the development of tools and methods for integrated assessment over the past three decades. Major examples of ORNL`s experience in the development of its capabilities for integrated assessment are given.

NONE

1995-04-01T23:59:59.000Z

417

On Quantum Integrable Systems  

SciTech Connect

Many quantum integrable systems are obtained using an accelerator physics technique known as Ermakov (or normalized variables) transformation. This technique was used to create classical nonlinear integrable lattices for accelerators and nonlinear integrable plasma traps. Now, all classical results are carried over to a nonrelativistic quantum case. In this paper we have described an extension of the Ermakov-like transformation to the Schroedinger and Pauli equations. It is shown that these newly found transformations create a vast variety of time dependent quantum equations that can be solved in analytic functions, or, at least, can be reduced to time-independent ones.

Danilov, Viatcheslav; /Oak Ridge; Nagaitsev, Sergei; /Fermilab

2011-11-01T23:59:59.000Z

418

ELECTRONIC INTEGRATING CIRCUIT  

DOE Patents (OSTI)

An electronic integrating circuit using a transistor with a capacitor connected between the emitter and collector through which the capacitor discharges at a rate proportional to the input current at the base is described. Means are provided for biasing the base with an operating bias and for applying a voltage pulse to the capacitor for charging to an initial voltage. A current dividing diode is connected between the base and emitter of the transistor, and signal input terminal means are coupled to the juncture of the capacitor and emitter and to the base of the transistor. At the end of the integration period, the residual voltage on said capacitor is less by an amount proportional to the integral of the input signal. Either continuous or intermittent periods of integration are provided. (AEC)

Englemann, R.H.

1963-08-20T23:59:59.000Z

419

Bioluminescent Bioreporter Integrated Circuits  

To address the need for fieldable real-time biological recognition systems, ORNL researchers developed a "laboratory on a chip" using genetically engineered whole cell biosensors attached to integrated circuits (ICs). These bioluminescent ...

420

Integrated optical isolators  

E-Print Network (OSTI)

Introduction: Optical isolators are important components in lasers. Their main function is to eliminate noise caused by back-reflections into these lasers. The need for integrated isolators comes from the continuing growth ...

Zaman, Tauhid R

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Hanford Tank Integrity Project  

Jordan Follett DST Project Plan and SST Use jordan_r_follet@rl.gov Rick Rast Structural Lead richard_s_rast@rl.gov Ted Venetz SST Integrity Lead theodore_j_venetz@rl.gov

422

Integrated Project Team RM  

Energy.gov (U.S. Department of Energy (DOE))

The Integrated Project Team (IPT) is an essential element of the Departments acquisition process and will be utilized during all phases of a project life cycle. The IPT is a team of professionals...

423

Wellbore Integrity Network  

SciTech Connect

In this presentation, we review the current state of knowledge on wellbore integrity as developed in the IEA Greenhouse Gas Programme's Wellbore Integrity Network. Wells are one of the primary risks to the successful implementation of CO{sub 2} storage programs. Experimental studies show that wellbore materials react with CO{sub 2} (carbonation of cement and corrosion of steel) but the impact on zonal isolation is unclear. Field studies of wells in CO{sub 2}-bearing fields show that CO{sub 2} does migrate external to casing. However, rates and amounts of CO{sub 2} have not been quantified. At the decade time scale, wellbore integrity is driven by construction quality and geomechanical processes. Over longer time-scales (> 100 years), chemical processes (cement degradation and corrosion) become more important, but competing geomechanical processes may preserve wellbore integrity.

Carey, James W. [Los Alamos National Laboratory; Bachu, Stefan [Alberta Innovates

2012-06-21T23:59:59.000Z

424

Integrated XML Document Management  

Science Conference Proceedings (OSTI)

XML has become a widely accepted data format for exchange and representation of semi-structured data. Efficiently managing XML as well as traditional business documents and content in an integrated fashion is a necessity for companies to be successful ...

Hui-I Hsiao; Joshua Hui; Ning Li; Parag Tijare

2003-01-01T23:59:59.000Z

425

Extended Enterprise Integration  

Science Conference Proceedings (OSTI)

This paper discusses the competitive pressures forcing major organisations to co-operate ever more closely in designing, manufacturing and supporting new products and major assets. It explains the resulting business and integration issues and presents ...

J. Gunn

2000-04-01T23:59:59.000Z

426

NREL: Distributed Grid Integration - Solar Distributed Grid Integration  

NLE Websites -- All DOE Office Websites (Extended Search)

Solar Distributed Grid Integration Projects Solar Distributed Grid Integration Projects NREL provides grid integration support, system-level testing, and systems analysis for DOE's Solar Distributed Grid Integration Projects supported by the SunShot Initiative. These projects address technical issues and develop solutions for high penetration grid integration of solar technologies into the electric power system to meet the following goals: Reduce cost: reduce interconnection costs by developing streamlined procedures including advanced integration models for utility interconnection of photovoltaics (PV) Reduce market barriers: work with utilities and system integrators to reduce market barriers by providing research on impacts of integration of high penetration of PV systems and developing solutions.

427

Integrated Safety Management Policy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

INTEGRATED SAFETY INTEGRATED SAFETY MANAGEMENT SYSTEM DESCRIPTION U.S. DEPARTMENT OF ENERGY Office of Environmental Management Headquarters May 2008 Preparation: Braj K. sin& Occupational Safety and Health Manager Office of Safety Management Concurrence: Chuan-Fu wu Director, Offlce of Safety Management Deputy Assistant Secretary for safe& Management andoperations Operations Officer for 1 Environmental Management Approval: Date p/-g Date Environmental Management TABLE OF CONTENTS ACRONYMS................................................................................................................................................................v EXECUTIVE SUMMARY .........................................................................................................................................1

428

CIM Application Integration  

Science Conference Proceedings (OSTI)

The EPRI Common Information Model (CIM) has been used as the basis or schema for implementing a real-time relational database in the CIM Application Integration Project. The CIM relational database is implemented in a normalized form so that it can support a complete range of utility transmission, generation, distribution, substation, and asset management applications. The objective of this document is to provide a final report on the CIM Application Integration Project.

2004-02-02T23:59:59.000Z

429

Development of the integrated environmental control model. Quarterly progress report, April 1995--June 1995  

SciTech Connect

The purpose of this contract is to develop and refine the Integrated Environmental Control Model (IECM). In its current configuration, the IECM provides a capability to model various conventional and advanced processes for controlling air pollutant emissions from coal-fired power plants before, during, or after combustion. The principal purpose of the model is to calculate the performance, emissions, and cost of power plant configurations employing alternative environmental control methods. The model consists of various control technology modules, which may be integrated into a complete utility plant in any desired combination. In contrast to conventional deterministic models, the IECM offers the unique capability to assign probabilistic values to all model input parameters, and to obtain probabilistic outputs in the form of cumulative distribution functions indicating the likelihood of different costs and performance results. The work in this contract is divided into two phases. Phase I deals with further developing the existing version of the IECM and training PETC personnel on the effective use of the model. Phase H deals with creating new technology modules, linking the IECM with PETC databases, and training PETC personnel on the effective use of the updated model. The present report summarizes recent progress on the Phase I effort during the period April 1, 1995 through June 30, 1995. This report presents additional revisions to the new cost models of flue gas desulfurization (FGD) technology initially reported in our fourth quarterly report. For convenience, the complete description of the revised FGD models are presented here.

Kalagnanam, J.R.; Rubin, E.S.

1995-06-01T23:59:59.000Z

430

NREL: Energy Systems Integration - Webmaster  

NLE Websites -- All DOE Office Websites (Extended Search)

Your name: Your email address: Your message: Send Message Printable Version Energy Systems Integration Home Research & Development Energy Systems Integration Facility Working...

431

NREL: Transmission Grid Integration - Publications  

NLE Websites -- All DOE Office Websites (Extended Search)

Publications Publications Want updates about future transmission grid integration webinars and publications? Join our mailing list. NREL has an extensive collection of publications related to transmission integration research. Explore the resources below to learn more. Selected Project Publications Read selected publications related to these transmission integration projects: Western Wind and Solar Integration Study Eastern Renewable Generation Integration Study Oahu Wind Integration and Transmission Study Flexible Energy Scheduling Tool for Integration of Variable generation (FESTIV) Active power controls Forecasting Grid Simulation. NREL Publications Database NREL's publications database offers a variety of documents related to transmission integration that were written by NREL staff and

432

Integrity Automotive | Open Energy Information  

Open Energy Info (EERE)

Automotive Jump to: navigation, search Name Integrity Automotive Place Kentucky Product Joint venture between Kentucky businessman Randal Waldman of Integrity Manufacturing and...

433

Integrated curriculum: art as catalyst.  

E-Print Network (OSTI)

??An arts based integrated curriculum plan is what resulted from a look at integrated curriculum and the advantages it has for student learning and success. (more)

Kiser, Elizabeth

2013-01-01T23:59:59.000Z

434

NREL: Transmission Grid Integration - Projects  

NLE Websites -- All DOE Office Websites (Extended Search)

Generation Integration Study Oahu Wind Integration and Transmission SIND Toolkit Electricity Market Design Energy Imbalance Markets Flexible Energy Scheduling Tool for...

435

SRS Tank Structural Integrity Program  

integrity management, such as those captured in the SRS and Hanford Structural Integrity Charts, and not isolated to just NDE concerns.

436

Field Test Program for Long-Term Operation of a COHPAC System for Removing Mercury from Coal-Fired Flue Gas  

Science Conference Proceedings (OSTI)

This document provides a summary of the full-scale demonstration efforts involved in the project ''Field Test Program for Long-Term Operation of a COHPAC{reg_sign} System for Removing Mercury from Coal-Fired Flue Gas''. The project took place at Alabama Power's Plant Gaston Unit 3 and involved the injection of sorbent between an existing particulate collector (hot-side electrostatic precipitators) and a COHPAC{reg_sign} fabric filter (baghouse) downstream. Although the COHPAC{reg_sign} baghouse was designed originally for polishing the flue gas, when activated carbon injection was added, the test was actually evaluating the EPRI TOXECON{reg_sign} configuration. The results from the baseline tests with no carbon injection showed that the cleaning frequency in the COHPAC{reg_sign} unit was much higher than expected, and was above the target maximum cleaning frequency of 1.5 pulses/bag/hour (p/b/h), which was used during the Phase I test in 2001. There were times when the baghouse was cleaning continuously at 4.4 p/b/h. In the 2001 tests, there was virtually no mercury removal at baseline conditions. In this second round of tests, mercury removal varied between 0 and 90%, and was dependent on inlet mass loading. There was a much higher amount of ash exiting the electrostatic precipitators (ESP), creating an inlet loading greater than the design conditions for the COHPAC{reg_sign} baghouse. Tests were performed to try to determine the cause of the high ash loading. The LOI of the ash in the 2001 baseline tests was 11%, while the second baseline tests showed an LOI of 17.4%. The LOI is an indication of the carbon content in the ash, which can affect the native mercury uptake, and can also adversely affect the performance of ESPs, allowing more ash particles to escape the unit. To overcome this, an injection scheme was implemented that balanced the need to decrease carbon injection during times when inlet loading to the baghouse was high and increase carbon injection when inlet loading and mercury removal were low. The resulting mercury removal varied between 50 and 98%, with an overall average of 85.6%, showing that the process was successful at removing high percentages of vapor-phase mercury even with a widely varying mass loading. In an effort to improve baghouse performance, high-permeability bags were tested. The new bags made a significant difference in the cleaning frequency of the baghouse. Before changing the bags, the baghouse was often in a continuous clean of 4.4 p/b/h, but with the new bags the cleaning frequency was very low, at less than 1 p/b/h. Alternative sorbent tests were also performed using these high-permeability bags. The results of these tests showed that most standard, high-quality activated carbon performed similarly at this site; low-cost sorbent and ash-based sorbents were not very effective at removing mercury; and chemically enhanced sorbents did not appear to offer any benefits over standard activated carbons at this site.

C. Jean Bustard; Charles Lindsey; Paul Brignac

2006-05-01T23:59:59.000Z

437

Integrating the Integrators - A Roadmap to Success  

SciTech Connect

The U.S. Department of Energy Environmental Management's (DOE-EM) investments in science and technology, as well as science and technology investments associated with other parts of the DOE are aimed at meeting the Departments cleanup goals. These investments, primarily focused on EM's cleanup mission, comprise the Environmental Quality Research and Development (R&D) portfolios. Synchronizing EM's Cleanup Project Managers (operations facility and process owners throughout the DOE complex) operational needs with EM R&D including the extensive work of the six Focus Areas (major thrust areas within DOE-EM) has been a continuing challenge. This recent initiative to better integrate the R&D program is in response to evolving needs within the Department to apply proven system engineering methods to clarify requirements and define EM's process to effectively orchestrate their R&D Program. To optimize this partnership, DOE-EM's Integration Program is successfully unifying the operational needs with the R&D as described in this paper.

Olson, Craig Stott; Conner, Craig C

1999-03-01T23:59:59.000Z

438

Integrating the Integrators - A Roadmap to Success  

SciTech Connect

The U.S. Department of Energy Environmental Management's (DOE-EM) investments in science and technology, as well as science and technology investments associated with other parts of the DOE are aimed at meeting the Departments cleanup goals. These investments, primarily focused on EM's cleanup mission, comprise the Environmental Quality Research and Development (R&D) portfolios. Synchronizing EM's Cleanup Project Managers (operations facility and process owners throughout the DOE complex) operational needs with EM R&D including the extensive work of the six Focus Areas (major thrust areas within DOE-EM) has been a continuing challenge. This recent initiative to better integrate the R&D program is in response to evolving needs within the Department to apply proven systems engineering methods to clarify requirements and define EM's process to effectively orchestrate their R&D Program. To optimize this partnership, DOE-EM's Integration Program is successfully unifying the operational needs with the R&D as described in this paper.

C. Conner; C. Olson

1999-02-01T23:59:59.000Z

439

Adsorption and desorption of sulfur dioxide on novel adsorbents for flue gas desulfurization. Final report, September 1, 1993--August 31, 1994  

SciTech Connect

Dry regenerative sorption processes have recently attracted increasing attention in flue gas desulfurization (FGD) because of their several advantages over the conventional wet-scrubbing processes. Dry sorbents are usually made by coating a transition or alkaline earth metal precursor on the surface of a porous support. Major disadvantages of these sorbents prepared by the conventional methods include relatively poor attrition resistance and low SO{sub 2} sorption capacity. The physical and especially chemical attrition (associated with the sulphation-oxidation-reduction cycles in the process) deteriorates the performance of the sorbents. The low SO{sub 2} sorption capacity is primarily due to the small surface area of the support. Materials with a high surface area are not used as the supports for FGD sorbents because these materials usually are not thermally stable at high temperatures. In the past year, the research supported by Ohio Coal Development Office was focused on synthesis and properties of sol-gel derived alumina and zeolite sorbents with improved properties for FGD. The sol-gel derived alumina has large surface area, mesopore size and excellent mechanical strength. Some alumina-free zeolites not only posses the basic properties required as a sorbent for FGD (hydrophobicity, thermal and chemical stability, mechanical strength) but also have extremely large surface area and selective surface chemistry. The major objectives of this research program were to synthesize the sol-gel derived sorbents and to explore the use of the zeolites either directly as adsorbents or as sorbent support for FGD. The research was aimed at developing novel FGD sorbents possessing better sorption equilibrium and kinetic properties and improved physical and chemical attrition resistance.

Lin, Y.S. [University of Cincinnati, Cincinnati, OH (United States)

1995-02-01T23:59:59.000Z

440

High-volume, high-value usage of flue gas desulfurization (FGD) by-products in underground mines: Phase 1 -- Laboratory investigations. Quarterly report, July--September 1995  

Science Conference Proceedings (OSTI)

Efforts primarily focused on Subtask 2.2, Chemical and Mineralogical Characterization and Subtask 4.3, Selection and Testing of Transport System. As part of Subtask 2.2, samples were collected from the Freeman United Crown Mine III FBC disposal facility representing a verity of ages and weathering. A laboratory scale transport system has been built at the CAER to evaluate the potential of pneumatic transport for flue gas desulfurization material (FGDM) emplacement and to provide essential data for the mine emplacement demonstration as part of the Subtask 4.3 effort. The system is modeled after shotcreting systems and has the advantage that the material can be remotely placed without the need for forms. The test program is focusing on determining the pneumatic conditions necessary to maximize the strength of the emplaced FGDM under anticipated mine curing conditions while minimizing dust formation. Work on Subtask 4.1, Mine Selection, also proceeded during the quarter. A new mine site, located in the south-central section of the Pikeville quadrangle, Pike County, Kentucky, was examined for the field study. The proposed fill site is in the Middle Pennsylvanian Breathitt Formation Middle Amburgy coal bed, a coal previously mined by Costain elsewhere on the property. Efforts on Subtask 4.2, Hydrologic Monitoring Plan, focused primarily on theoretical issues concerning the effects of the mining and backfill activity on the ground water and surface water due to uncertainties in the location of the final field site. There are three major concerns about the effects of the mining activity: changes in the ground water flow field, changes in ground water quality, and consequential induced changes on stream flow.

NONE

1996-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "integrated oxy-combustion flue" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Integrated Safety Management Workshop Registration, PIA, Idaho...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Integrated Safety Management Workshop Registration, PIA, Idaho National Laboratory Integrated Safety Management Workshop Registration, PIA, Idaho National Laboratory Integrated...

442

Integrity Lessons from the WAAS Integrity Performance Panel (WIPP)  

E-Print Network (OSTI)

Integrity Lessons from the WAAS Integrity Performance Panel (WIPP) Todd Walter, Per Enge, Stanford that the integrity requirement would be met, the FAA formed the WAAS Integrity Performance Panel (WIPP). The role of the WIPP is to independently assess the safety of WAAS and to recommend system improvements. To accomplish

Stanford University

443

Integrated Micro Nano Systems Integrated Micro Nano Systems  

E-Print Network (OSTI)

#12;Integrated Micro Nano Systems 2 #12;Integrated Micro Nano Systems 3 Val Jones (Ed.) Symposium on Integrated Micro Nano Systems: Convergence of bio and nanotechnologies, Enschede, The Netherlands, June 2006 Micro Nano Systems 4 #12;Integrated Micro Nano Systems 5 Preface In order to explore the convergence

Al Hanbali, Ahmad