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1

Thermal dissociation behavior and dissociation enthalpies of methane-carbon dioxide mixed hydrates  

E-Print Network (OSTI)

of Methane– Title: Carbon Dioxide Mixed Hydrates Tae-Hyukof methane with carbon dioxide in hydrate has been proposedsequestration of carbon dioxide ( CO 2 ) and/or production

Kwon, T.H.

2012-01-01T23:59:59.000Z

2

Microbial Sequestration of Carbon Dioxide and Subsequent Conversion to Methane  

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

Sequestration of Carbon Dioxide and Subsequent Sequestration of Carbon Dioxide and Subsequent conversion to Methane By Nirupam Pal Associate Professor California Polytechnic State University San Luis Obispo, CA 93401 Email : npal@calpoly.edu Phone : (805) 756-1355 INTRODUCTION The rising level of carbon dioxide in the atmosphere has been of growing concern in recent years. The increasing levels of carbon dioxide, the most dominant component of greenhouse gases, contribute to global warming and changing global weather patterns which could potentially lead to catastrophic events that could threaten life in every form on this planet. The level of carbon dioxide in the worlds atmosphere has increased from about 280 ppm in 1850 to the current level of approximately 350 ppm. There are several natural sources and sinks of

3

Accessibility of pores in coal to methane and carbon dioxide  

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

Accessibility Accessibility of pores in coal to methane and carbon dioxide 3 Yuri B. Melnichenko a,b,⇑ , Lilin He a , Richard Sakurovs c,⇑ , Arkady L. Kholodenko d , Tomasz Blach e , 4 Maria Mastalerz f , Andrzej P. Radlin ´ ski e,f , Gang Cheng g,h , David F.R. Mildner i 5 a Neutron Scattering Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA 6 b Department of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996, USA 7 c CSIRO Energy Technology, 11 Julius Avenue, North Ryde, 2113 NSW, Australia 8 d 375 H.L. Hunter Laboratories, Clemson University, Clemson, SC 29634-0973, USA 9 e Nanoscale Science and Technology Centre, Griffith University, Nathan 4111, Brisbane, Australia 10 f Indiana Geological Survey, Indiana University, Bloomington, IN 47405-2208, USA 11 g Sandia National Laboratories, Q1 Livermore, CA 94551, USA 12 h Sandia National Laboratories, Albuquerque,

4

Polyaniline-Based Membranes for Separating Carbon Dioxide and Methane  

Berkeley Lab researchers have optimized polymer membrane technology to more efficiently remove carbon dioxide (CO2) from natural gas. The invention ...

5

Oxygen Pathways and Carbon Dioxide Utilization in Methane Partial Oxidation in Ambient Temperature  

E-Print Network (OSTI)

- ronmental impact. Present technology uses steam reforming to produce synthesis gas which is converted into enhance- ment of the carbon balance of methane conversion by reforming with CO2 in order to "recycleOxygen Pathways and Carbon Dioxide Utilization in Methane Partial Oxidation in Ambient Temperature

Mallinson, Richard

6

Storage of Hydrogen, Methane, and Carbon Dioxide in Highly Porous Covalent Organic Frameworks for Clean Energy  

E-Print Network (OSTI)

Storage of Hydrogen, Methane, and Carbon Dioxide in Highly Porous Covalent Organic Frameworks projects aimed at using hydrogen as a clean fuel for automobiles and producing clean energy by designing achieve higher storage capacities for hydrogen, (1) (a) Leaf, D.; Verolmec, H. J. H.; Hunt, W. F., Jr. En

Yaghi, Omar M.

7

Effect of carbon dioxide and nitrogen on the diffusivity of methane confined in nano-porous carbon aerogel  

Science Conference Proceedings (OSTI)

The microscopic diffusivity of methane (CH{sub 4}) confined in nano-porous carbon aerogel was investigated as a function of added carbon dioxide (CO{sub 2}) and nitrogen (N{sub 2}) pressure using quasi-elastic neutron scattering (QENS). In the range of the external pressure of 1-2.5 MPa, the self-diffusivity of methane was found to increase with CO{sub 2} pressure and remain practically unchanged in the N{sub 2} environment. Increasing mobility of methane with CO{sub 2} pressure suggests that the adsorbed CH4 molecules become gradually replaced by CO{sub 2} on the surface of carbon aerogel pores, whereas the presence of N{sub 2} does not induce the replacement. The molecular mobility of the methane, with or without added carbon dioxide and nitrogen, is described by the unrestricted diffusion model, which is characteristic of methane compressed in small pores. On the other hand, both nitrogen and carbon dioxide molecules in carbon aerogel, when studied alone, with no methane present, follow a jump diffusion process, characteristic of the molecular mobility in the densified adsorbed layers on the surface of the aerogel pores.

Mavila Chathoth, Suresh [ORNL; He, Lilin [ORNL; Mamontov, Eugene [ORNL; Melnichenko, Yuri B [ORNL

2012-01-01T23:59:59.000Z

8

Extinguishment of methane diffusion flames by carbon dioxide ...  

Science Conference Proceedings (OSTI)

... These were determined from a flammability map presented by Coward and Jones for methane in air diluted with CO2 [41]. ... [15] KE Lange, AT Perka ...

2008-11-04T23:59:59.000Z

9

Estimation of methane and carbon dioxide surface fluxes using a 3-D global atmospheric chemical transport model  

E-Print Network (OSTI)

Methane (CH?) and carbon dioxide (CO?) are the two most radiatively important greenhouse gases attributable to human activity. Large uncertainties in their source and sink magnitudes currently exist. We estimate global ...

Chen, Yu-Han, 1973-

2004-01-01T23:59:59.000Z

10

Pore accessibility of methane and carbon dioxide in coals  

Science Conference Proceedings (OSTI)

Two Australian coals were heat-treated, and the accessibility of the pore space to CH{sub 4} and CO{sub 2} was investigated. Samples heat-treated at 573 and 673 K exhibit larger adsorption/desorption hysteresis and smaller surface areas (measured by CO{sub 2} adsorption at 273 K) than untreated samples. For samples heat-treated at 773 K, however, the surface area increased by 50% and the hysteresis was lower, compared to untreated samples. These results demonstrate that volatile hydrocarbons at pore mouths are the cause of energy barriers that prevent adsorbing molecules from passing through. A conceptual model is proposed to illustrate changes in activation energy at constricted pore mouths. Also, the results suggest that both adsorption and desorption isotherms should be measured to determine kinetically inaccessible pore spaces in order to correctly estimate CH{sub 4} recovery and CO{sub 2} storage capacity. The results have importance to the problem of estimating CH{sub 4} recovery and CO{sub 2} storage capacity for CO{sub 2} geosequestration as part of a CO{sub 2}-enhanced coal bed methane recovery operation. 28 refs., 11 figs., 5 tabs.

Jun-Seok Bae; Suresh K. Bhatia; Victor Rudolph; Paul Massarotto [University of Queensland, Qld. (Australia). Division of Chemical Engineering

2009-05-15T23:59:59.000Z

11

Field-project designs for carbon dioxide sequestration and enhanced coalbed methane production  

Science Conference Proceedings (OSTI)

Worldwide concerns about global warming and possible contributions to it from anthropogenic carbon dioxide have become important during the past several years. Coal seams may make excellent candidates for CO{sub 2} sequestration; coal-seam sequestration could enhance methane production and improve sequestration economics. Reservoir-simulation computations are an important component of any engineering design before carbon dioxide is injected underground. We have performed such simulations for a hypothetical pilot-scale project in representative coal seams. In these simulations we assume four horizontal production wells that form a square, that is, two wells drilled at right angles to each other forming two sides of a square, with another pair of horizontal wells similarly drilled to form the other two sides. Four shorter horizontal wells are drilled from a vertical well at the center of the square, forming two straight lines orthogonal to each other. By modifying coal properties, especially sorption rate, we have approximated different types of coals. By varying operational parameters, such as injector length, injection well pressure, time to injection, and production well pressure, we can evaluate different production schemes to determine an optimum for each coal type. Any optimization requires considering a tradeoff between total CO{sub 2} sequestered and the rate of methane production. Values of total CO{sub 2} sequestered and methane produced are presented for multiple coal types and different operational designs. 30 refs., 11 figs., 1 tab.

W. Neal Sams; Grant Bromhal; Sinisha Jikich; Turgay Ertekin; Duane H. Smith [EG& G Technical Services, Morgantown, WV (United States). National Energy Technology Laboratory

2005-12-01T23:59:59.000Z

12

Methane and carbon dioxide production from simulated anaerobic degradation of cattle carcasses  

Science Conference Proceedings (OSTI)

Highlights: Black-Right-Pointing-Pointer This study evaluates methane and carbon dioxide production after land burial of cattle carcasses. Black-Right-Pointing-Pointer Disposal of animal mortalities is often overlooked in evaluating the environmental impacts of animal production. Black-Right-Pointing-Pointer we quantify annual emissions from cattle carcass disposal in the United States as 1.6 Tg CO{sub 2} equivalents. - Abstract: Approximately 2.2 million cattle carcasses require disposal annually in the United States. Land burial is a convenient disposal method that has been widely used in animal production for disposal of both daily mortalities as well as during catastrophic mortality events. To date, greenhouse gas production after mortality burial has not been quantified, and this study represents the first attempt to quantify greenhouse gas emissions from land burial of animal carcasses. In this study, anaerobic decomposition of both homogenized and unhomogenized cattle carcass material was investigated using bench-scale reactors. Maximum yields of methane and carbon dioxide were 0.33 and 0.09 m{sup 3}/kg dry material, respectively, a higher methane yield than that previously reported for municipal solid waste. Variability in methane production rates were observed over time and between reactors. Based on our laboratory data, annual methane emissions from burial of cattle mortalities in the United States could total 1.6 Tg CO{sub 2} equivalents. Although this represents less than 1% of total emissions produced by the agricultural sector in 2009, greenhouse gas emissions from animal carcass burial may be significant if disposal of swine and poultry carcasses is also considered.

Yuan Qi; Saunders, Samuel E. [Department of Civil Engineering, Peter Kiewit Institute, University of Nebraska-Lincoln, Omaha, NE (United States); Bartelt-Hunt, Shannon L., E-mail: sbartelt2@unl.edu [Department of Civil Engineering, Peter Kiewit Institute, University of Nebraska-Lincoln, Omaha, NE (United States)

2012-05-15T23:59:59.000Z

13

Mechanisms controlling the production and transport of methane, carbon dioxide, and dissolved solutes within a boreal peatland  

SciTech Connect

Peatlands are one of the most important terrestrial reservoirs in the global cycle for carbon, and are a major source for atmospheric methane. However, little is known about the dynamics of these carbon reservoirs or their feedback mechanisms with the pool of atmospheric CO{sub 2} during the Holocene. Specifically, it is unknown whether large peat basins are sources, sinks, or steady-state reservoirs for the global carbon cycle. In particular, the production and transport of methane, carbon dioxide, and dissolved organic carbon form the deeper portions of these peatlands is unknown. Our DOE research program is to conduct an integrated ecologic and hydrogeochemical study of the Glacial Lake Agassiz peatlands (northern Minnesota) to better understand the carbon dynamics in globally significant peat basins. Specifically, our study will provide local and regional data on (1), rates of carbon accumulation and loss and fluxes of methane in the peat profiles; (2) the physical and botanical factors controlling the production of methane and carbon dioxide in the wetland; and (3) the role of hydrogeologic processes in controlling the fluxes of gases and solutes through the peat. We intend to use computer simulation models, calibrated to field data, to scale-up from local to regional estimates of methane and carbon dioxide within the basin. How gases and dissolved organic carbon escapes form peatlands in unknown. It has been suggested that the concentrations of methane produced in the upper peat are sufficient to produce diffusion gradients towards the surface. Alternatively, gas may move through the peat profile by groundwater advection.

Siegel, D.I.

1992-04-09T23:59:59.000Z

14

Using Carbon Dioxide to Enhance Recovery of Methane from Gas Hydrate Reservoirs: Final Summary Report  

Science Conference Proceedings (OSTI)

Carbon dioxide sequestration coupled with hydrocarbon resource recovery is often economically attractive. Use of CO2 for enhanced recovery of oil, conventional natural gas, and coal-bed methane are in various stages of common practice. In this report, we discuss a new technique utilizing CO2 for enhanced recovery of an unconventional but potentially very important source of natural gas, gas hydrate. We have focused our attention on the Alaska North Slope where approximately 640 Tcf of natural gas reserves in the form of gas hydrate have been identified. Alaska is also unique in that potential future CO2 sources are nearby, and petroleum infrastructure exists or is being planned that could bring the produced gas to market or for use locally. The EGHR (Enhanced Gas Hydrate Recovery) concept takes advantage of the physical and thermodynamic properties of mixtures in the H2O-CO2 system combined with controlled multiphase flow, heat, and mass transport processes in hydrate-bearing porous media. A chemical-free method is used to deliver a LCO2-Lw microemulsion into the gas hydrate bearing porous medium. The microemulsion is injected at a temperature higher than the stability point of methane hydrate, which upon contacting the methane hydrate decomposes its crystalline lattice and releases the enclathrated gas. Small scale column experiments show injection of the emulsion into a CH4 hydrate rich sand results in the release of CH4 gas and the formation of CO2 hydrate

McGrail, B. Peter; Schaef, Herbert T.; White, Mark D.; Zhu, Tao; Kulkarni, Abhijeet S.; Hunter, Robert B.; Patil, Shirish L.; Owen, Antionette T.; Martin, P F.

2007-09-01T23:59:59.000Z

15

Assessing the Thermodynamic Feasibility of the Conversion of Methane Hydrate into Carbon Dioxide Hydrate in Porous Media  

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

Assessing the Thermodynamic Feasibility of the Conversion of Methane Assessing the Thermodynamic Feasibility of the Conversion of Methane Hydrate into Carbon Dioxide Hydrate in Porous Media Duane H. Smith (dsmith@netl.doe.gov; 304-285-4069), U.S. Department of Energy, National Energy Technology Laboratory, Morgantown, WV 26507-0880 Kal Seshadri (kal.seshadri@netl.doe.gov; 304-285-4680), Parsons Infrastructure and Technology Group, Morgantown, WV 26505 Joseph W. Wilder (wilder@math.wvu.edu; 304-293-2011), U.S. Department of Energy, National Energy Technology Laboratory, Morgantown, WV 26507-0880 (Permanent Address: Dept of Mathematics, P. O. Box 6310, West Virginia University, Morgantown, WV, 26506-6310) Abstract Concerns about the potential effects of rising carbon dioxide levels in the atmosphere have stimulated interest in a number of carbon dioxide sequestration studies. One

16

Adsorption of methane, ethane, ethylene, and carbon dioxide on high silica pentasil zeolites and zeolite like materials using gas chromatography pulse technique  

SciTech Connect

Adsorption of methane, ethane, ethylene, and carbon dioxide in H-ZSM-5, Na-ZSM-5, H-ZSM-8, Na-ZSM-8, Silicalite, and ALPO-5 at 303-473 K has been investigated using a gas chromatography pulse technique. The zeolites have been compared for the heat of adsorption of the adsorbates at near zero adsorbate loading and also for the specific retention volume (or thermodynamic adsorption equilibrium constant) of ethane, ethylene, and carbon dioxide relative to that of methane. Among the zeolites, ALPO-5 has a high potential for the separation of methane, ethane, ethylene, and carbon dioxide from their mixture. 21 refs., 4 figs., 4 tabs.

Choudhary, V.R.; Mayadevi, S. (National Chemical Lab., Pune (India))

1993-10-01T23:59:59.000Z

17

Thermal dissociation behavior and dissociation enthalpies of methane-carbon dioxide mixed hydrates  

SciTech Connect

Replacement of methane with carbon dioxide in hydrate has been proposed as a strategy for geologic sequestration of carbon dioxide (CO{sub 2}) and/or production of methane (CH{sub 4}) from natural hydrate deposits. This replacement strategy requires a better understanding of the thermodynamic characteristics of binary mixtures of CH{sub 4} and CO{sub 2} hydrate (CH{sub 4}-CO{sub 2} mixed hydrates), as well as thermophysical property changes during gas exchange. This study explores the thermal dissociation behavior and dissociation enthalpies of CH{sub 4}-CO{sub 2} mixed hydrates. We prepared CH{sub 4}-CO{sub 2} mixed hydrate samples from two different, well-defined gas mixtures. During thermal dissociation of a CH{sub 4}-CO{sub 2} mixed hydrate sample, gas samples from the head space were periodically collected and analyzed using gas chromatography. The changes in CH{sub 4}-CO{sub 2} compositions in both the vapor phase and hydrate phase during dissociation were estimated based on the gas chromatography measurements. It was found that the CO{sub 2} concentration in the vapor phase became richer during dissociation because the initial hydrate composition contained relatively more CO{sub 2} than the vapor phase. The composition change in the vapor phase during hydrate dissociation affected the dissociation pressure and temperature; the richer CO{sub 2} in the vapor phase led to a lower dissociation pressure. Furthermore, the increase in CO{sub 2} concentration in the vapor phase enriched the hydrate in CO{sub 2}. The dissociation enthalpy of the CH{sub 4}-CO{sub 2} mixed hydrate was computed by fitting the Clausius-Clapeyron equation to the pressure-temperature (PT) trace of a dissociation test. It was observed that the dissociation enthalpy of the CH{sub 4}-CO{sub 2} mixed hydrate lays between the limiting values of pure CH{sub 4} hydrate and CO{sub 2} hydrate, increasing with the CO{sub 2} fraction in the hydrate phase.

Kwon, T.H.; Kneafsey, T.J.; Rees, E.V.L.

2011-02-15T23:59:59.000Z

18

Carbon Dioxide as Cushion Gas for Natural Gas Storage  

Carbon dioxide injection during carbon sequestration with enhanced gas recovery can be carried out to produce the methane while

19

Effects of carbon dioxide injection on the displacement of methane and carbonate dissolution in sandstone cores  

E-Print Network (OSTI)

Previous coreflood experiments show that CO2 sequestration in carbonate rocks is a win-win technology. Injecting CO2 into a depleted gas reservoir for storage also produces hitherto unrecoverable gas. This in turn helps to defray the cost of CO2 sequestration. This thesis reports the results from experiments conducted on a Berea sandstone core. The experiments include displacement experiments and unconfined compressive strength tests. The displacement experiments were conducted at cell pressures of 1500 psig and temperature of 60oC using a 1 foot long and 1 inch diameter Berea sandstone core. Pure CO2 and treated flue gas (99.433 % mole CO2) were injected into the Berea sandstone core initially saturated with methane at a pressure of 1500 psig and 800 psig respectively. Results from these experiments show that the dispersion coefficient for both pure CO2 and treated flue gas are relatively small ranging from 0.18-0.225 cm2/min and 0.28-0.30 cm2/min respectively. The recovery factor of methane at break-through is relatively high ranging from 71%-80% of original gas in place for pure CO2 and 90% to 92% OGIP for treated flue gas, the difference resulting from different cell pressures used. Therefore it would appear that, in practice injection of treated flue gas is a cheaper option compared to pure CO2 injection. For the unconfined compressive strength tests, corefloods were first conducted at high flowrates ranging from 5 ml/min to 20 ml/ min, pressures of 1700-1900 Psig and a temperature of 65oC. These conditions simulate injecting CO2 originating from an electric power generation plant into a depleted gas reservoir and model the near well bore situation. Results from these experiments show a 1% increase in porosity and changes in injectivity due to permeability impairment. The cores are then subjected to an unconfined compressive strength test. Results from these tests do not show any form of weakening of the rock due to CO2 injection.

Maduakor, Ekene Obioma

2006-08-01T23:59:59.000Z

20

Mechanisms controlling the production and transport of methane, carbon dioxide, and dissolved solutes within a boreal peatland. Progress report, January 15, 1991--July 14, 1992  

SciTech Connect

Peatlands are one of the most important terrestrial reservoirs in the global cycle for carbon, and are a major source for atmospheric methane. However, little is known about the dynamics of these carbon reservoirs or their feedback mechanisms with the pool of atmospheric CO{sub 2} during the Holocene. Specifically, it is unknown whether large peat basins are sources, sinks, or steady-state reservoirs for the global carbon cycle. In particular, the production and transport of methane, carbon dioxide, and dissolved organic carbon form the deeper portions of these peatlands is unknown. Our DOE research program is to conduct an integrated ecologic and hydrogeochemical study of the Glacial Lake Agassiz peatlands (northern Minnesota) to better understand the carbon dynamics in globally significant peat basins. Specifically, our study will provide local and regional data on (1), rates of carbon accumulation and loss and fluxes of methane in the peat profiles; (2) the physical and botanical factors controlling the production of methane and carbon dioxide in the wetland; and (3) the role of hydrogeologic processes in controlling the fluxes of gases and solutes through the peat. We intend to use computer simulation models, calibrated to field data, to scale-up from local to regional estimates of methane and carbon dioxide within the basin. How gases and dissolved organic carbon escapes form peatlands in unknown. It has been suggested that the concentrations of methane produced in the upper peat are sufficient to produce diffusion gradients towards the surface. Alternatively, gas may move through the peat profile by groundwater advection.

Siegel, D.I.

1992-04-09T23:59:59.000Z

Note: This page contains sample records for the topic "methane carbon dioxide" 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.


21

Soil–Atmosphere Exchange of Nitrous Oxide, Nitric Oxide, Methane, and Carbon Dioxide in Logged and Undisturbed Forest in the Tapajos National Forest, Brazil  

Science Conference Proceedings (OSTI)

Selective logging is an extensive land use in the Brazilian Amazon region. The soil–atmosphere fluxes of nitrous oxide (N2O), nitric oxide (NO), methane (CH4), and carbon dioxide (CO2) are studied on two soil types (clay Oxisol and sandy loam ...

Michael Keller; Ruth Varner; Jadson D. Dias; Hudson Silva; Patrick Crill; Raimundo Cosme de Oliveira Jr.; Gregory P. Asner

2005-11-01T23:59:59.000Z

22

Experimental study of the reforming of methane with carbon dioxide over coal char - article no. A16  

Science Conference Proceedings (OSTI)

As one of the fundamental issues of the new poly-generation system on the basis of gasification gas and coke oven gas, carbon dioxide reforming of methane experiments have been performed over coal chars derived from different parent coals in a lab-scale fixed-bed reactor (internal diameter 12 mm, length 700 mm). The char derived from TongChuan coal exhibited higher activity than other samples employed under the same conditions. After the reforming reaction, the char samples were covered with different amounts of carbon deposition which resulted in the surface areas decrease. As the flow rate of feed gas increased from 200 ml/min to 600 ml/min over the Xuzhou char sample at 1050{sup o}C, the conversion of methane decreased from 52.7% to 17.5% and the H{sub 2}/CO dropped from 0.75 to 0.55. While maintaining the flow rate of CO{sub 2} at 20ml/min at 1050{sup o}C, the mole ratio of reactants CH{sub 4}/CO{sub 2} was varied from 1 to 1.75 which led to the H{sub 2}/CO ratio increase from 0.75 to 1.2.

Li, Y.B.; Xiao, R.; Jin, B.S.; Zhang, H.Y.

2008-07-01T23:59:59.000Z

23

Carbon Dioxide (CO2)  

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

Carbon Dioxide (CO2) Carbon Dioxide (CO2) Gateway Pages to Carbon Dioxide Data Modern records and ice core records back 2000 years 800,000 year records from ice cores Other...

24

Enhanced Coalbed Methane Recovery Through Sequestration of Carbon Dioxide: Potential for a Market-Based Environmental Solution in the Black Warrior Basin of Alabama  

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

Coalbed Methane Recovery Through Sequestration of Coalbed Methane Recovery Through Sequestration of Carbon Dioxide: Potential for a Market-Based Environmental Solution in the Black Warrior Basin of Alabama Jack C. Pashin (jpashin@gsa.state.al.us; 205-349-2852) Geological Survey of Alabama P.O. Box 869999 Tuscaloosa, AL 35486 Richard H. Groshong, Jr. (rgroshon@wgs.geo.ua.edu; 205-348-1882) Deparment of Geology University of Alabama Tuscaloosa, AL 35487 Richard E. Carroll (rcarroll@gsa.state.al.us; 205-349-2852) Geological Survey of Alabama P.O. Box 869999 Tuscaloosa, AL 35486 Abstract Sequestration of CO 2 in coal is a market-based environmental solution with potential to reduce greenhouse gas emissions while increasing coalbed methane recovery. Producing coalbed methane through injection of CO 2 is also more efficient than current techniques requiring

25

Production and Ebullition of Methane in a Shallow Eutrophic Lake (Lake Elsinore, CA)  

E-Print Network (OSTI)

monoxide, methane, carbon dioxide and total gaseous mercuryFluxes of methane and carbon dioxide from a small productiveebullition of methane and carbon dioxide from a eutrophied

Martinez, Denise Nicole

2012-01-01T23:59:59.000Z

26

Calculating Residential Carbon Dioxide Emissions --A New Approach  

E-Print Network (OSTI)

Calculating Residential Carbon Dioxide Emissions -- A New Approach Larry Hughes, Kathleen Bohan to submit an annual national greenhouse gas inventory to the United Nations Framework Convention on Climate different sectors and their associated greenhouse gas emissions (principally carbon dioxide, methane

Hughes, Larry

27

Adsorption of Pure Methane, Nitrogen, and Carbon Dioxide and Their Mixtures on San Juan Basin Coal  

SciTech Connect

The major objectives of this project were to (a) measure the adsorption behavior of pure methane, nitrogen, CO{sub 2} and their binary and ternary mixtures on wet Tiffany coal at 130 F and pressures to 2000 psia; (b) correlate the equilibrium adsorption isotherm data using the extended Langmuir model, the Langmuir model, the loading ratio correlation and the Zhou-Gasem-Robinson equation of state; and (c) establish sorption-time estimates for the pure components. Specific accomplishments are summarized below regarding the complementary tasks involving experimental work and data correlation. Representative coal samples from BP Amoco Tiffany Injection Wells No.1 and No.10 were prepared, as requested. The equilibrium moisture content and particle size distribution of each coal sample were determined. Compositional coal analyses for both samples were performed by Huffman Laboratories, Inc. Pure gas adsorption for methane on wet Tiffany coal samples from Injection Wells No.1 and No.10 was measured separately at 130 F (327.6 K) and pressures to 2000 psia (13.7 MPa). The average expected uncertainty in these data is about 3% (9 SCF/ton). Our measurements indicate that the adsorption isotherms of the two coal samples exhibit similar Langmuir-type behavior. For the samples from the two wells, a maximum variation of about 5% in the amount adsorbed is observed at 2000 psia. Gas adsorption isotherms were measured for pure methane, nitrogen and CO{sub 2} on a wet, mixed Tiffany coal sample. The coal sample was an equal-mass mixture of coals from Well No.1 and Well No.10. The adsorption measurements were conducted at 130 F at pressures to 2000 psia. The adsorption isotherms have average expected experimental uncertainties of 3% (9 SCF/ton), 6% (8 SCF/ton), and 7% (62 SCF/ton) for methane, nitrogen, and CO{sub 2}, respectively. Adsorption isotherms were measured for methane/nitrogen, methane/CO{sub 2} and nitrogen/CO{sub 2} binary mixtures on wet, mixed Tiffany coal at 130 F and pressures to 2000 psia. These measurements were conducted for a single molar feed composition for each mixture. The expected uncertainties in the amount adsorbed for these binary mixtures vary with pressure and composition. In general, average uncertainties are about 5% (19 SCF/ton) for the total adsorption; however, the expected uncertainties in the amount of individual-component adsorption are significantly higher for the less-adsorbed gas at lower molar feed concentrations (e.g., nitrogen in the 20/80 nitrogen/CO{sub 2} system). Adsorption isotherms were measured for a single methane/nitrogen/CO{sub 2} ternary mixture on wet, mixed Tiffany coal at 130 F and pressures to 2000 psia. The nominal molar feed composition was 10/40/50. The average expected uncertainty for the total adsorption and CO{sub 2} adsorption is about 5% (16 SCF/ton). However, the low adsorption of nitrogen and methane in this ternary yield average experimental uncertainties of 14% (9 SCF/ton) and 27% (9 SCF/ton), respectively. Limited binary and ternary gas-phase compressibility factor measurements at 130 F and pressures to 2000 psia involving methane, nitrogen, and CO{sub 2} were conducted to facilitate reduction of our ternary adsorption data. These newly acquired data (and available data from the literature) were used to improve the Benedict-Webb-Rubin (BWR) equation-of-state (EOS) compressibility factor predictions, which are used in material balance calculations for the adsorption measurements. In general, the optimized BWR EOS represents the experimental compressibility factor data within 0.5% AAD. The Langmuir/loading ratio correlation (LRC) and the Zhou-Gasem-Robinson (ZGR) two-dimensional EOS were used to analyze the newly acquired adsorption data. Model parameters were obtained for the systems studied. The LRC and ZGR EOS were used to correlate the adsorption data for methane, nitrogen, and CO{sub 2} and their mixtures on wet Tiffany coal. The model parameters were determined by minimizing the sum of squares of weighted errors in the calculated amounts of gas adsorbed. The results

K. A. M. Gasem; R. L. Robinson; S. R. Reeves

2002-03-01T23:59:59.000Z

28

Carbon Dioxide Compression  

Science Conference Proceedings (OSTI)

Page 1. © C opyright 2009 Carbon Dioxide Compression DOE – EPRI – NIST ... Greenhouse gas sequestration Page 5. 5 © C opyright 2009 ...

2013-04-22T23:59:59.000Z

29

Pore accessibility by methane and carbon dioxide in coal as determined by neutron scattering  

SciTech Connect

Contrast-matching ultrasmall-angle neutron scattering (USANS) and small-angle neutron scattering (SANS) techniques were used for the first time to determine both the total pore volume and the fraction of the pore volume that is inaccessible to deuterated methane, CD{sub 4}, in four bituminous coals in the range of pore sizes between {approx}10 {angstrom} and {approx}5 {micro}m. Two samples originated from the Illinois Basin in the U.S.A., and the other two samples were commercial Australian bituminous coals from the Bowen Basin. The total and inaccessible porosity were determined in each coal using both Porod invariant and the polydisperse spherical particle (PDSP) model analysis of the scattering data acquired from coals both in vacuum and at the pressure of CD{sub 4}, at which the scattering length density of the pore-saturating fluid is equal to that of the solid coal matrix (zero average contrast pressure). The total porosity of the coals studied ranged from 7 to 13%, and the volume of pores inaccessible to CD{sub 4} varied from {approx}13 to {approx}36% of the total pore volume. The volume fraction of inaccessible pores shows no correlation with the maceral composition; however, it increases with a decreasing total pore volume. In situ measurements of the structure of one coal saturated with CO{sub 2} and CD{sub 4} were conducted as a function of the pressure in the range of 1-400 bar. The neutron scattering intensity from small pores with radii less than 35 {angstrom} in this coal increased sharply immediately after the fluid injection for both gases, which demonstrates strong condensation and densification of the invading subcritical CO{sub 2} and supercritical methane in small pores.

He, Lilin [ORNL; Melnichenko, Yuri B [ORNL; Mastalerz, Maria [Indiana Geological Survey; Sakurovs, Richard [ORNL; Radlinski, Andrzej Pawell [ORNL; Blach, Tomasz P [ORNL

2012-01-01T23:59:59.000Z

30

EA-1846: Demonstration of Carbon Dioxide Capture and Sequestration...  

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

46: Demonstration of Carbon Dioxide Capture and Sequestration of Steam Methane Reforming Process Gas Used for Large-Scale Hydrogen Production, Port Arthur, Texas EA-1846:...

31

Henry's Law Constants of Methane, Nitrogen, Oxygen and Carbon Dioxide in Ethanol from 273 to 498 K: Prediction from Molecular Simulation  

E-Print Network (OSTI)

noindent Henry's law constants of the solutes methane, nitrogen, oxygen and carbon dioxide in the solvent ethanol are predicted by molecular simulation. The molecular models for the solutes are taken from previous work. For the solvent ethanol, a new rigid anisotropic united atom molecular model based on Lennard-Jones and Coulombic interactions is developed. It is adjusted to experimental pure component saturated liquid density and vapor pressure data. Henry's law constants are calculated by evaluating the infinite dilution residual chemical potentials of the solutes from 273 to 498K with Widom's test particle insertion. The prediction of Henry's Law constants without the use of binary experimental data on the basis of the Lorentz-Berthelot combining rule agree well with experimental data, deviations are 20%, except for carbon dioxide for which deviations of 70% are reached. Quantitative agreement is achieved by using the modified Lorentz-Berthelot combining rule which is adjusted to one experimental mixture ...

Schnabel, T; Hasse, H

2009-01-01T23:59:59.000Z

32

Carbon Dioxide and Hydrogen Sulfide Emission Factors Applicable to Wastewater Wet Wells.  

E-Print Network (OSTI)

??Transport of wastewater in sewer networks causes potential problems associated with gases which include ammonia, carbon dioxide, carbon monoxide, hydrogen sulfide and methane, in regard… (more)

Mudragaddam, Madhuri

2010-01-01T23:59:59.000Z

33

Feasibility analysis of ternary feed mixtures of methane with oxygen, steam, and carbon dioxide for the production of methanol synthesis gas  

SciTech Connect

The feasibility of ternary feed mixtures of CH{sub 4} with O{sub 2}, H{sub 2}O, and CO{sub 2} is analyzed in relation to the production of methanol syngas. Stoichiometric constraints are formulated in terms of three parameters characterizing the steam, partial oxidation, and carbon dioxide reforming reactions of methane. The equilibrium analysis is conducted using the methanol balance ratio {mu} and methane slip fraction {chi} as explicit design parameters. General results are derived for the feasibility of each ternary feed combination as a function of pressure and temperature in the range 1 < {mu} < 3 under carbon-free conditions. Numerical calculations indicate that CH{sub 4}/O{sub 2}/CO{sub 2} feeds can be used in single-stage adiabatic reformers at low values of {mu}, but the produced syngas requires further treatment. Reforming based on CH{sub 4}/O{sub 2}/H{sub 2}O feeds is endothermic at {mu} {ge} 2 under typical reaction conditions, thus requiring the application of a two-stage process involving primary and secondary reformers. Utilization of CH{sub 4}/O{sub 2}/H{sub 2}O feeds in single-stage adiabatic reactors is feasible for {mu} = 1.7--1.9, yielding syngas which can be upgraded by partial CO{sub 2} removal. The endothermic CH{sub 4}/CO{sub 2}/H{sub 2}O feed combination is always feasible for 1 < {mu} < 3.

Tjatjopoulos, G.J. [Chemical Process Engineering Research Inst., Thessaloniki (Greece). Foundation for Research and Technology; Vasalos, I.A. [Aristotle Univ. of Thessaloniki (Greece). Chemical Engineering Dept.

1998-04-01T23:59:59.000Z

34

SEQUESTERING CARBON DIOXIDE IN COALBEDS  

SciTech Connect

The authors' long term goal is to develop accurate prediction methods for describing the adsorption behavior of gas mixtures on solid adsorbents over complete ranges of temperature, pressure and adsorbent types. The major objectives of the project are to: (1) measure the adsorption behavior of pure CO{sub 2}, methane, nitrogen and their binary and ternary mixtures on several selected coals having different properties at temperatures and pressures applicable to the particular coal being studied, (2) generalize the adsorption results in terms of appropriate properties of the coals, to facilitate estimation of adsorption behavior for coals other than those studied experimentally, (3) delineate the sensitivity of the competitive adsorption of CO{sub 2}, methane and nitrogen to the specific characteristics of the coal on which they are adsorbed; establish the major differences (if any) in the nature of this competitive adsorption on different coals, and (4) test and/or develop theoretically-based mathematical models to represent accurately the adsorption behavior of mixtures of the type for which measurements are made. The specific accomplishments of this project during this reporting period are summarized below in three broad categories outlining experimentation, model development, and coal characterization. (1) Experimental Work: Our adsorption apparatus was reassembled, and all instruments were tested and calibrated. Having confirmed the viability of the experimental apparatus and procedures used, adsorption isotherms for pure methane, carbon dioxide and nitrogen on wet Fruitland coal were measured at 319.3 K (115 F) and pressures to 12.4 MPa (1800 psia). These measurements showed good agreement with our previous data and yielded an expected uncertainty of about 2%. Preparations are underway to measure adsorption isotherms for pure methane, carbon dioxide and nitrogen on two other coals. (2) Model Development: The experimental data were used to evaluate the predictive capabilities of various adsorption models, including the Langmuir/loading ratio correlation, two-dimensional cubic equations of state, and the local density model. In general, all models performed well for Type I adsorption exhibited by methane, nitrogen, and carbon dioxide up to 8.3 MPa (average deviations within 2%). However, for pressures higher than 8.3 MPa (1200 psia), carbon dioxide produced multilayer adsorption behavior similar to Type IV adsorption. Our results to date indicate that the SLD model may be a suitable choice for modeling multilayer coalbed gas adsorption. However, model improvements are required to (a) account for coal heterogeneity and structure complexity, and (b) provide for more accurate density predictions. (3) Coal Characterization: We have identified several well-characterized coals for use in our adsorption studies. The criteria for coal selection has been guided by the need for coals that (a) span the spectrum of properties encountered in coalbed methane production (such as variation in rank), and (b) originate from coalbed methane recovery sites (e.g., San Juan Basin, Black Warrior Basin, etc.). At Pennsylvania State University, we have completed calibrating our instruments using a well-characterized activated carbon. In addition, we have conducted CO{sub 2} and methane uptakes on four samples, including (a) a widely used commercial activated carbon, BPL from Calgon Carbon Corp.; (b) an Illinois No.6 bituminous coal from the Argonne Premium Coal sample bank; (c) a Fruitland Intermediate coal sample; (d) a dry Fruitland sample. The results are as expected, except for a greater sensitivity to the outgassing temperature. ''Standard'' outgassing conditions (e.g., 383.2 K, overnight), which are often used, may not be appropriate for gas storage in coalbeds. Conditions that are more representative of in-situ coal (approximately 313.2 K) may be much more appropriate. In addition, our results highlight the importance of assessing the degree of approach to adsorption equilibrium.

K.A.M. Gasem; R.L. Robinson, Jr.; L.R. Radovic

2001-06-15T23:59:59.000Z

35

CYCLIC CARBON DIOXIDE STIMULATION  

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

CARBON DIOXIDE STIMULATION ("Huff-and-Puff') (A well-stimulation method) Cyclic CO 2 stimulation is a single-well operation that is developing as a method of rapidly producing oil....

36

SRD 134 Carbon Dioxide  

Science Conference Proceedings (OSTI)

> Return to SRD 134, Index of Semiconductor Process Gases. CARBON DIOXIDE. MW [1]. 44.010. NBP [1]. 194.75 K. TP [1]. 216.59 K. CO 2. Pc [1]. ...

2012-07-27T23:59:59.000Z

37

Carbon dioxide sensor  

SciTech Connect

The present invention generally relates to carbon dioxide (CO.sub.2) sensors. In one embodiment, the present invention relates to a carbon dioxide (CO.sub.2) sensor that incorporates lithium phosphate (Li.sub.3PO.sub.4) as an electrolyte and sensing electrode comprising a combination of lithium carbonate (Li.sub.2CO.sub.3) and barium carbonate (BaCO.sub.3). In another embodiment, the present invention relates to a carbon dioxide (CO.sub.2) sensor has a reduced sensitivity to humidity due to a sensing electrode with a layered structure of lithium carbonate and barium carbonate. In still another embodiment, the present invention relates to a method of producing carbon dioxide (CO.sub.2) sensors having lithium phosphate (Li.sub.3PO.sub.4) as an electrolyte and sensing electrode comprising a combination of lithium carbonate (Li.sub.2CO.sub.3) and barium carbonate (BaCO.sub.3).

Dutta, Prabir K. (Worthington, OH); Lee, Inhee (Columbus, OH); Akbar, Sheikh A. (Hilliard, OH)

2011-11-15T23:59:59.000Z

38

Carbon dioxide capture process with regenerable sorbents  

DOE Patents (OSTI)

A process to remove carbon dioxide from a gas stream using a cross-flow, or a moving-bed reactor. In the reactor the gas contacts an active material that is an alkali-metal compound, such as an alkali-metal carbonate, alkali-metal oxide, or alkali-metal hydroxide; or in the alternative, an alkaline-earth metal compound, such as an alkaline-earth metal carbonate, alkaline-earth metal oxide, or alkaline-earth metal hydroxide. The active material can be used by itself or supported on a substrate of carbon, alumina, silica, titania or aluminosilicate. When the active material is an alkali-metal compound, the carbon-dioxide reacts with the metal compound to generate bicarbonate. When the active material is an alkaline-earth metal, the carbon dioxide reacts with the metal compound to generate carbonate. Spent sorbent containing the bicarbonate or carbonate is moved to a second reactor where it is heated or treated with a reducing agent such as, natural gas, methane, carbon monoxide hydrogen, or a synthesis gas comprising of a combination of carbon monoxide and hydrogen. The heat or reducing agent releases carbon dioxide gas and regenerates the active material for use as the sorbent material in the first reactor. New sorbent may be added to the regenerated sorbent prior to subsequent passes in the carbon dioxide removal reactor.

Pennline, Henry W. (Bethel Park, PA); Hoffman, James S. (Library, PA)

2002-05-14T23:59:59.000Z

39

Available Technologies: Acceleration of Carbon Dioxide ...  

APPLICATIONS OF TECHNOLOGY: Carbon dioxide capture and sequestration; ADVANTAGES: Accelerated capture of carbon dioxide; Effective at extremely dilute (nanomolar ...

40

The carbon dioxide dilemma  

SciTech Connect

The effect of burning fossil fuels on the global climate is discussed. It may be that as we produce carbon dioxide by burning fossil fuels, we create a greenhouse effect which causes temperatures on earth to rise. Implications of changes in global temperatures are discussed.

Edelson, E.

1982-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "methane carbon dioxide" 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

NETL: Carbon Dioxide 101 FAQs  

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

is carbon dioxide? is carbon dioxide? CO2 Dipole Carbon Dioxide Carbon dioxide (chemical name CO2) is a clear gas composed of one atom of carbon (C) and two atoms of oxygen (O). Carbon dioxide is one of many chemical forms of carbon on the Earth. It does not burn, and in standard temperature and pressure conditions it is stable, inert, and non-toxic. Carbon dioxide occurs naturally in small amounts (about 0.04%) in the Earth's atmosphere. The volume of CO2 in the atmosphere is equivalent to one individual in a crowd of 2,500. Carbon dioxide is produced naturally by processes deep within the Earth. This CO2 can be released at the surface by volcanoes or might be trapped in natural underground geologic CO2 deposits, similar to underground deposits of oil and natural gas. As a major greenhouse gas, CO2 helps create and

42

NETL: Carbon Dioxide 101 FAQs  

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

the process through which carbon is cycled through the air, ground, plants, animals, and fossil fuels. People and animals inhale oxygen from the air and exhale carbon dioxide...

43

NETL: Carbon Dioxide 101 FAQs  

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

is the greenhouse effect? is the greenhouse effect? Greenhouse Effect Greenhouse Effect The greenhouse effect is used to describe the phenomenon whereby the Earth's atmosphere traps solar radiation, caused by the presence of gases, such as carbon dioxide (CO2), methane (CH4), and water vapor (H2O), in the atmosphere that allow incoming sunlight to pass through but absorb heat radiated back from the Earth's surface, resulting in higher temperatures. The greenhouse effect gets its name from what actually happens in a greenhouse. In a greenhouse, short wavelength visible sunlight shines through the glass panes and warms the air and the plants inside. The radiation emitted from the heated objects is of longer wavelength and is unable to pass through the glass barrier, maintaining a warm temperature

44

CARBON DIOXIDE FIXATION.  

DOE Green Energy (OSTI)

Solar carbon dioxide fixation offers the possibility of a renewable source of chemicals and fuels in the future. Its realization rests on future advances in the efficiency of solar energy collection and development of suitable catalysts for CO{sub 2} conversion. Recent achievements in the efficiency of solar energy conversion and in catalysis suggest that this approach holds a great deal of promise for contributing to future needs for fuels and chemicals.

FUJITA,E.

2000-01-12T23:59:59.000Z

45

SEQUESTERING CARBON DIOXIDE IN COALBEDS  

SciTech Connect

During the present reporting period, six complementary tasks involving experimentation, model development, and coal characterization were undertaken to meet our project objectives: (1) A second adsorption apparatus, utilizing equipment donated by BP Amoco, was assembled. Having confirmed the reliability of this additional experimental apparatus and procedures, adsorption isotherms for CO{sub 2}, methane, ethane, and nitrogen on wet Fruitland coal and on activated carbon were measured at 319.3 K (115 F) and pressures to 12.4 MPa (1800 psia). These measurements showed good agreement with our previous data and yielded an expected uncertainty of about 3%. The addition of this new facility has allowed us to essentially double our rate of data production. (2) Adsorption isotherms for pure CO{sub 2}, methane, and nitrogen on wet Illinois-6 coal and on activated carbon were measured at 319.3 K (115 F) and pressures to 12.4 MPa (1800 psia) on our first apparatus. The activated carbon measurements showed good agreement with literature data and with measurements obtained on our second apparatus. The expected uncertainty of the data is about 3%. The Illinois-6 adsorption measurements are a new addition to the existing database. Preparations are underway to measure adsorption isotherms for pure methane, carbon dioxide and nitrogen on DESC-8 coal. (3) Adsorption from binary mixtures of methane, nitrogen and CO{sub 2} at a series of compositions was also measured on the wet Fruitland coal at 319.3 K (115 F), using our first apparatus. The nominal compositions of these mixtures are 20%/80%, 40%/60%, 60%/40%, and 80%/20%. The experiments were conducted at pressures from 100 psia to 1800 psia. The expected uncertainty for these binary mixture data varies from 2 to 9%. (4) A study was completed to address the previously-reported rise in the CO{sub 2} absolute adsorption on wet Fruitland coal at 115 F and pressures exceeding 1200 psia. Our additional adsorption measurements on Fruitland coal and on activated carbon show that: (a) the Gibbs adsorption isotherm for CO{sub 2} under study exhibits typical adsorption behavior for supercritical gas adsorption, and (b) a slight variation from Type I absolute adsorption may be observed for CO{sub 2}, but the variation is sensitive to the estimates used for adsorbed phase density. (5) The experimental data were used to evaluate the predictive capabilities of various adsorption models, including the Langmuir/loading ratio correlation, a two-dimensional cubic equation of state (EOS), a new two-dimensional (2-D) segment-segment interactions equation of state, and the simplified local density model (SLD). Our model development efforts have focused on developing the 2-D analog to the Park-Gasem-Robinson (PGR) EOS and an improved form of the SLD model. The new PGR EOS offers two advantages: (a) it has a more accurate repulsive term, which is important for reliable adsorption predictions, and (b) it is a segment-segment interactions model, which should more closely describe the gas-coal interactions during the adsorption process. In addition, a slit form of the SLD model was refined to account more precisely for heterogeneity of the coal surface and matrix swelling. In general, all models performed well for the Type I adsorption exhibited by methane, nitrogen, and carbon dioxide up to 8.3 MPa (average deviations within 2%). In comparison, the SLD model represented the adsorption behavior of all fluids considered within 5% average deviations, including the near-critical behavior of carbon dioxide beyond 8.3 MPa (1200 psia). Work is in progress to (a) derive and implement the biporous form of the SLD model, which would expand the number of structural geometries used to represent the heterogeneity of coal surface; and (b) extend the SLD model to mixture predictions. (6) Proper reduction of our adsorption data requires accurate gas-phase compressibility (Z) factors for methane, ethane, nitrogen and carbon dioxide and their mixtures to properly analyze our experimental adsorption data. A careful evaluation of t

K.A.M. Gasem; R.L. Robinson, Jr.; L.R. Radovic

2001-06-15T23:59:59.000Z

46

Abatement of Air Pollution: Control of Carbon Dioxide Emissions...  

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

Carbon Dioxide EmissionsCarbon Dioxide Budget Trading Program (Connecticut) Abatement of Air Pollution: Control of Carbon Dioxide EmissionsCarbon Dioxide Budget Trading Program...

47

Sonochemical reduction of carbon dioxide.  

E-Print Network (OSTI)

??Emissions from the combustion of fossil fuels and cement production are responsible for approximately 75% of the increase of carbon dioxide (CO2) concentration in the… (more)

Koblov, Alexander

2011-01-01T23:59:59.000Z

48

Carbon dioxide and climate  

SciTech Connect

Scientific and public interest in greenhouse gases, climate warming, and global change virtually exploded in 1988. The Department's focused research on atmospheric CO{sub 2} contributed sound and timely scientific information to the many questions produced by the groundswell of interest and concern. Research projects summarized in this document provided the data base that made timely responses possible, and the contributions from participating scientists are genuinely appreciated. In the past year, the core CO{sub 2} research has continued to improve the scientific knowledge needed to project future atmospheric CO{sub 2} concentrations, to estimate climate sensitivity, and to assess the responses of vegetation to rising concentrations of CO{sub 2} and to climate change. The Carbon Dioxide Research Program's goal is to develop sound scientific information for policy formulation and governmental action in response to changes of atmospheric CO{sub 2}. The Program Summary describes projects funded by the Carbon Dioxide Research Program during FY 1990 and gives a brief overview of objectives, organization, and accomplishments.

1990-10-01T23:59:59.000Z

49

Carbon Ion Pump for Carbon Dioxide Removal  

coal fired power plants; oil or gas fired power plants; cement production; bio-fuel combustion; Separation of carbon dioxide from other combustion ...

50

decommissioning of carbon dioxide (CO  

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

decommissioning of carbon dioxide (CO decommissioning of carbon dioxide (CO 2 ) storage wells. The manual builds on lessons learned through NETL research; the experiences of the Regional Carbon Sequestration Partnerships' (RCSPs) carbon capture, utilization, and storage (CCUS) field tests; and the acquired knowledge of industries that have been actively drilling wells for more than 100 years. In addition, the BPM provides an overview of the well-

51

Carbon Dioxide Sequestration in Geologic Coal Formations  

SciTech Connect

BP Corporation North America, Inc. (BP) currently operates a nitrogen enhanced recovery project for coal bed methane at the Tiffany Field in the San Juan Basin, Colorado. The project is the largest and most significant of its kind wherein gas is injected into a coal seam to recover methane by competitive adsorption and stripping. The Idaho National Engineering and Environmental Laboratory (INEEL) and BP both recognize that this process also holds significant promise for the sequestration of carbon dioxide, a greenhouse gas, while economically enhancing the recovery of methane from coal. BP proposes to conduct a CO2 injection pilot at the tiffany Field to assess CO2 sequestration potential in coal. For its part the INEEL will analyze information from this pilot with the intent to define the Co2 sequestration capacity of coal and its ultimate role in ameliorating the adverse effects of global warming on the nation and the world.

2001-09-30T23:59:59.000Z

52

Photocatalytic Conversion of Carbon Dioxide to Methanol.  

E-Print Network (OSTI)

??The photocatalytic conversion of carbon dioxide (CO2) to methanol was investigated. The procedure for the carbon dioxide conversion was carried out using a small scale… (more)

Okpo, Emmanuel

2009-01-01T23:59:59.000Z

53

Figure 37. Carbon dioxide emissions from electricity ...  

U.S. Energy Information Administration (EIA)

Sheet3 Sheet2 Sheet1 Figure 37. Carbon dioxide emissions from electricity generation in three cases, 2005-2040 (million metric tons carbon dioxide ...

54

China's Industrial Carbon Dioxide Emissions in Manufacturing...  

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

China's Industrial Carbon Dioxide Emissions in Manufacturing Subsectors and in Selected Provinces Title China's Industrial Carbon Dioxide Emissions in Manufacturing Subsectors and...

55

Optimize carbon dioxide sequestration, enhance oil recovery  

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

4 January Optimize carbon dioxide sequestration, enhance oil recovery Optimize carbon dioxide sequestration, enhance oil recovery The simulation provides an important...

56

Optimize carbon dioxide sequestration, enhance oil recovery  

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

Optimize carbon dioxide sequestration, enhance oil recovery Optimize carbon dioxide sequestration, enhance oil recovery The simulation provides an important approach to estimate...

57

Haverford Researchers Create Carbon Dioxide-Separating Polymer  

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

Haverford College Haverford College Researchers Create Carbon Dioxide-Separating Polymer Haverford College Researchers Create Carbon Dioxide-Separating Polymer August 1, 2012 | Tags: Basic Energy Sciences (BES), Chemistry, Hopper Rebecca Raber, rraber@haverford.edu, +1 610 896 1038 gtoc.jpg Carbon dioxide gas separation is important for many environmental and energy applications. Molecular dynamics simulations are used to characterize a two-dimensional hydrocarbon polymer, PG-ES1, that uses a combination of surface adsorption and narrow pores to separate carbon dioxide from nitrogen, oxygen, and methane gases. Image by Joshua Schrier, Haverford College. Carbon dioxide is the primary greenhouse gas emitted through human activities, such as the combustion of fossil fuels for energy and

58

Modern Records of Carbon and Oxygen Isotopes in Atmospheric Carbon...  

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

Modern Records of Carbon and Oxygen Isotopes in Atmospheric Carbon Dioxide and Carbon-13 in Methane Modern Records of Carbon and Oxygen Isotopes in Atmospheric Carbon Dioxide and...

59

SEQUESTERING CARBON DIOXIDE IN COALBEDS  

SciTech Connect

The authors' long-term goal is to develop accurate prediction methods for describing the adsorption behavior of gas mixtures on solid adsorbents over complete ranges of temperature, pressure and adsorbent types. The originally-stated, major objectives of the current project are to (1) measure the adsorption behavior of pure CO{sub 2}, methane, nitrogen, and their binary and ternary mixtures on several selected coals having different properties at temperatures and pressures applicable to the particular coals being studied, (2) generalize the adsorption results in terms of appropriate properties of the coals to facilitate estimation of adsorption behavior for coals other than those studied experimentally, (3) delineate the sensitivity of the competitive adsorption of CO{sub 2}, methane and nitrogen to the specific characteristics of the coal on which they are adsorbed; establish the major differences (if any) in the nature of this competitive adsorption on different coals, and (4) test and/or develop theoretically-based mathematical models to represent accurately the adsorption behavior of mixtures of the type for which measurements are made. As this project has developed, an important additional objective has been added to the above original list. Namely, we have been encouraged to interact with industry and/or governmental agencies to utilize our expertise to advance the state of the art in coalbed adsorption science and technology. As a result of this additional objective, we have participated with the Department of Energy and industry in the measurement and analysis of adsorption behavior as part of two distinct investigations. These include (a) Advanced Resources International (ARI) DOE Project DE-FC26-00NT40924, ''Adsorption of Pure Methane, Nitrogen, and Carbon Dioxide and Their Mixtures on Wet Tiffany Coal'', and (b) the DOE-NETL Project, ''Round Robin: CO{sub 2} Adsorption on Selected Coals''. These activities, contributing directly to the DOE projects listed above, have also provided direct synergism with the original goals of our work. Specific accomplishments of this project during the current reporting period are summarized in three broad categories outlining experimentation, model development, and coal characterization.

K.A.M. Gasem; R.L. Robinson, Jr.; L.R. Radovic

2003-03-10T23:59:59.000Z

60

SEQUESTERING CARBON DIOXIDE IN COALBEDS  

SciTech Connect

The authors' long-term goal is to develop accurate prediction methods for describing the adsorption behavior of gas mixtures on solid adsorbents over complete ranges of temperature, pressure, and adsorbent types. The originally-stated, major objectives of the current project are to: (1) measure the adsorption behavior of pure CO{sub 2}, methane, nitrogen, and their binary and ternary mixtures on several selected coals having different properties at temperatures and pressures applicable to the particular coals being studied, (2) generalize the adsorption results in terms of appropriate properties of the coals to facilitate estimation of adsorption behavior for coals other than those studied experimentally, (3) delineate the sensitivity of the competitive adsorption of CO{sub 2}, methane, and nitrogen to the specific characteristics of the coal on which they are adsorbed; establish the major differences (if any) in the nature of this competitive adsorption on different coals, and (4) test and/or develop theoretically-based mathematical models to represent accurately the adsorption behavior of mixtures of the type for which measurements are made. As this project developed, an important additional objective was added to the above original list. Namely, we were encouraged to interact with industry and/or governmental agencies to utilize our expertise to advance the state of the art in coalbed adsorption science and technology. As a result of this additional objective, we participated with the Department of Energy and industry in the measurement and analysis of adsorption behavior as part of two distinct investigations. These include (a) Advanced Resources International (ARI) DOE Project DE-FC26-00NT40924, ''Adsorption of Pure Methane, Nitrogen, and Carbon Dioxide and Their Mixtures on Wet Tiffany Coal'', and (b) the DOE-NETL Project, ''Round Robin: CO{sub 2} Adsorption on Selected Coals''. These activities, contributing directly to the DOE projects listed above, also provided direct synergism with the original goals of our work. Specific accomplishments of this project are summarized below in three broad categories: experimentation, model development, and coal characterization.

K.A.M. Gasem; R.L. Robinson, Jr.; J.E. Fitzgerald; Z. Pan; M. Sudibandriyo

2003-04-30T23:59:59.000Z

Note: This page contains sample records for the topic "methane carbon dioxide" 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

Geologic Storage of Carbon Dioxide Principal Investigators  

E-Print Network (OSTI)

of our methane extraction around 10 years from now, similar to growth in coal-bed methane over the last reserves of coal, oil, and gas--is frozen into an icy material known as methane clathrates or hydratesCarbon.1018g Coal Oil Gas Methane Hydrate Amount of Carbon in Fossil Fuels and Hydrate Proven reserves

Harris, Jerry M.

62

EIA - The National Energy Modeling System: An Overview 2003-Carbon Dioxide  

Gasoline and Diesel Fuel Update (EIA)

Carbon Dioxide and Methane Emissions Carbon Dioxide and Methane Emissions The National Energy Modeling System: An Overview 2003 Carbon Dioxide and Methane Emissions The emissions policy submodule, part of the integrating module, estimates the energy–related emissions of carbon dioxide and methane. Carbon dioxide emissions are dependent on the fossil fuel consumed, the carbon content of the fuel, and the fraction of the fuel consumed in combustion. The product of the carbon dioxide coefficient and the combustion fraction yields a carbon dioxide emission factor. For fuel uses of fossil energy, the combustion fractions are assumed to be 0.99 for liquid fuels and 0.995 for gaseous fuels. The carbon dioxide potential of nonfuel uses of energy, such as asphalt and petrochemical feedstocks, is assumed to be sequestered in the product and not released to the atmosphere. The coefficients for carbon dioxide emissions are updated each year from the Energy Information Administration’s annual, Emissions of Greenhouse Gases in the United States.17

63

A Guidebook for Low-Carbon Development at the Local Level  

E-Print Network (OSTI)

Industrial Sector Carbon Dioxide Emissions: Projections andEnergy Costs, and Carbon Dioxide Emissions (ORNL/TM-main carbon-based GHGs: carbon dioxide (CO 2 ) and methane (

Zhou, Nan

2012-01-01T23:59:59.000Z

64

Calculating the probability of injected carbon dioxide plumes encountering faults  

E-Print Network (OSTI)

Change Special Report on Carbon Dioxide Capture and Storage,Probability of Injected Carbon Dioxide Plumes Encounteringthe probability of injected carbon dioxide encountering and

Jordan, P.D.

2013-01-01T23:59:59.000Z

65

The Greenness of Cities: Carbon Dioxide Emissions and Urban Development  

E-Print Network (OSTI)

carbon dioxide emissions index, we use conversion factors.conversion factor of pounds of carbon dioxide emitted perappropriate factors to arrive at carbon dioxide emissions.

Glaeser, Edward L.; Kahn, Matthew E.

2008-01-01T23:59:59.000Z

66

The Greenness of Cities: Carbon Dioxide Emissions and Urban Development  

E-Print Network (OSTI)

carbon dioxide emissions index, we use conversion factors.into carbon dioxide emissions, we continue to use a factorappropriate factors to arrive at carbon dioxide emissions.

Glaeser, Edward L.; Kahn, Matthew E.

2008-01-01T23:59:59.000Z

67

Weyburn Carbon Dioxide Sequestration Project  

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

Weyburn Carbon DioxiDe SequeStration Weyburn Carbon DioxiDe SequeStration ProjeCt Background Since September 2000, carbon dioxide (CO 2 ) has been transported from the Dakota Gasification Plant in North Dakota through a 320-km pipeline and injected into the Weyburn oilfield in Saskatchewan, Canada. The CO 2 has given the Weyburn field, discovered 50 years ago, a new life: 155 million gross barrels of incremental oil are slated to be recovered by 2035 and the field is projected to be able to store 30 million tonnes of CO 2 over 30 years. CO 2 injection began in October of 2005 at the adjacent Midale oilfield, and an additional 45-60 million barrels of oil are expected to be recovered during 30 years of continued operation. A significant monitoring project associated with the Weyburn and Midale commercial

68

Cyclic process for producing methane from carbon monoxide with heat removal  

DOE Patents (OSTI)

Carbon monoxide-containing gas streams are converted to methane by a cyclic, essentially two-step process in which said carbon monoxide is disproportionated to form carbon dioxide and active surface carbon deposited on the surface of a catalyst, and said carbon is reacted with steam to form product methane and by-product carbon dioxide. The exothermic heat of reaction generated in each step is effectively removed during each complete cycle so as to avoid a build up of heat from cycle-to-cycle, with particularly advantageous techniques being employed for fixed bed, tubular and fluidized bed reactor operations.

Frost, Albert C. (Congers, NY); Yang, Chang-lee (Spring Valley, NY)

1982-01-01T23:59:59.000Z

69

Carbon Dioxide Information Analysis Center (CDIAC)  

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

Emissions Carbon Dioxide Fossil-Fuel CO2 Emissions Carbon Dioxide Emissions from Fossil-Fuel Consumption and Cement Manufacture, (2011) Kyoto-Related Fossil-Fuel CO2 Emission...

70

Process for sequestering carbon dioxide and sulfur dioxide  

DOE Patents (OSTI)

A process for sequestering carbon dioxide, which includes reacting a silicate based material with an acid to form a suspension, and combining the suspension with carbon dioxide to create active carbonation of the silicate-based material, and thereafter producing a metal salt, silica and regenerating the acid in the liquid phase of the suspension.

Maroto-Valer, M. Mercedes (State College, PA); Zhang, Yinzhi (State College, PA); Kuchta, Matthew E. (State College, PA); Andresen, John M. (State College, PA); Fauth, Dan J. (Pittsburgh, PA)

2009-10-20T23:59:59.000Z

71

Flame Inhibition by Ferrocene, Carbon Dioxide, and ...  

Science Conference Proceedings (OSTI)

Flame Inhibition by Ferrocene, Carbon Dioxide, and Trifluoromethane Blends: Synergistic ... a straight sided schlieren image which is captured by a ...

2012-10-23T23:59:59.000Z

72

Carbon Dioxide Compression and Transportation  

Science Conference Proceedings (OSTI)

This report summarizes the state of the art regarding carbon dioxide CO2 compression and transportation in the United States and Canada. The primary focus of the report was on CO2 compression because it is a significant cost and energy penalty in carbon capture and storage CCS. The secondary focus of the report was to document the state of the art of CO2 pipeline transportation in the United States and Canada.

2008-12-23T23:59:59.000Z

73

EIA - Greenhouse Gas Emissions - Carbon Dioxide Emissions  

U.S. Energy Information Administration (EIA)

Nonfuel uses of fossil fuels (for purposes other than their energy value) create carbon dioxide emissions and also sequester carbon in nonfuel products, ...

74

Carbon Dioxide Information Analysis Center (CDIAC)  

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

available free of charge - include estimates of carbon dioxide emissions from fossil-fuel consumption and land-use changes; records of atmospheric concentrations of carbon...

75

Electrocatalytic reduction of carbon dioxide to carbon monoxide by rhenium and manganese polypyridyl catalysts  

E-Print Network (OSTI)

for reduction of carbon dioxide. IR-SpectroelectrochemicalElectrocatalytic reduction of carbon dioxide mediated by Re(Reduction of Carbon Dioxide to Carbon Monoxide Mediated by (

Smieja, Jonathan Mark

2012-01-01T23:59:59.000Z

76

Sequence Stratigraphy and Architecture of Lower Pennsylvanian Strata, Southern West Virginia: Potential for Carbon Sequestration and Enhanced Coal-Bed Methane Recovery in the Pocahontas Basin.  

E-Print Network (OSTI)

??Carbon dioxide sequestration in coal-bed methane fields has potential to add significant recoverable reserves and extend the production life of coal-bed methane fields while at… (more)

Rouse, William Allan

2009-01-01T23:59:59.000Z

77

Capturing Carbon Dioxide From Air  

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

Capturing Carbon Dioxide From Air Capturing Carbon Dioxide From Air Klaus S. Lackner (kl2010@columbia.edu; 212-854-0304) Columbia University 500 West 120th Street New York, NY 10027 Patrick Grimes (pgrimes@worldnet.att.net; 908-232-1134) Grimes Associates Scotch Plains, NJ 07076 Hans-J. Ziock (ziock@lanl.gov; 505-667-7265) Los Alamos National Laboratory P.O.Box 1663 Los Alamos, NM 87544 Abstract The goal of carbon sequestration is to take CO 2 that would otherwise accumulate in the atmosphere and put it in safe and permanent storage. Most proposed methods would capture CO 2 from concentrated sources like power plants. Indeed, on-site capture is the most sensible approach for large sources and initially offers the most cost-effective avenue to sequestration. For distributed, mobile sources like cars, on-board capture at affordable cost would not be

78

Mechanisms controlling the production and transport of methane, carbon dioxide, and dissolved solutes within a boreal peatland. Progress report, July 15, 1992--July 14, 1993  

SciTech Connect

The role of freshwater peatlands in the global methane cycle remains uncertain. Field measurements of methane emissions tend to be highly variable across a peatland and exhibit sharp seasonal fluctuations. The process of extrapolating these variable measurements to regional estimates is further complicated by rudimentary knowledge of the environmental controls can the production and emissions of methane from peat. The distribution of methanogenesis within the peat profile will strongly influence the response of methane emissions to potential climatic changes. During the summers of 1990 and 1991 we conducted a study on the mechanisms for the production, transport, and storage of methane within the Glacial Lake Agassiz peatland region as the regional climate shifted from extreme drought to a period of normal rainfall. This natural experiment provided unexpected insights on the linkages among climate, hydrology, and the methane cycle in large peat basins. This report presents project progress for period July 15, 1992--July 14, 1993

Siegel, D.I.

1993-06-24T23:59:59.000Z

79

Carbon dioxide for enhanced oil recovery  

SciTech Connect

The current status and outlook for carbon dioxide in the immediate future has been examined by Kenneth M. Stern of Chem Systems Inc. Stern. Most of the tonnage carbon dioxide being used for EOR comes from natural gas wells. Major projects are now in progress to develop natural carbon dioxide sources and to transport the gas via pipeline to the injection region. These projects and the maximum permissible cost of carbon dioxide at current petroleum prices are discussed. Potential sources include exhaust gases from power plants, natural gas processing plants, chemical plants, and natural carbon dioxide wells.

Not Available

1986-04-28T23:59:59.000Z

80

Carbon dioxide storage professor Martin Blunt  

E-Print Network (OSTI)

Carbon dioxide storage professor Martin Blunt executive summary Carbon Capture and Storage (CCS) referS to the Set of technologies developed to capture carbon dioxide (Co2) gas from the exhausts raises new issues of liability and risk. the focus of this briefing paper is on the storage of carbon

Note: This page contains sample records for the topic "methane carbon dioxide" 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

Reductive Sequestration of Carbon Dioxide  

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

Reductive Sequestration of Carbon Dioxide Reductive Sequestration of Carbon Dioxide T. Mill (ted.mill@sri.com; 650-859-3605) SRI, PS273 333 Ravenswood Menlo Park, CA 94025 D. Ross (dsross3@yahoo.com; 650-327-3842) U.S. Geological Survey, Bldg 15 MS 999 345 Middlefield Rd. Menlo Park, CA 94025 Introduction The United States currently meets 80% of its energy needs by burning fossil fuels to form CO 2 . The combustion-based production of CO 2 has evolved into a major environmental challenge that extends beyond national borders and the issue has become as politically charged as it is technologically demanding. Whereas CO 2 levels in the atmosphere had remained stable over the 10,000 years preceeding the industrial revolution, that event initiated rapid growth in CO 2 levels over the past 150 years (Stevens, 2000). The resulting accelerating accumulation of

82

IEP - Carbon Dioxide: Regulatory Drivers  

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

IEP - Carbon Dioxide (CO2) Regulatory Drivers In July 7, 2009 testimony before the U.S. Senate Committee on Environment and Public Works, Secretary of Energy Steven Chu made the following statements:1 "...Overwhelming scientific evidence shows that carbon dioxide from human activity has increased the atmospheric level of CO2 by roughly 40 percent, a level one- third higher than any time in the last 800,000 years. There is also a consensus that CO2 and other greenhouse gas emissions have caused our planet to change. Already, we have seen the loss of about half of the summer arctic polar ice cap since the 1950s, a dramatically accelerating rise in sea level, and the loss of over two thousand cubic miles of glacial ice, not on geological time scales but over a mere hundred years.

83

Carbon Dioxide: Threat or Opportunity?  

E-Print Network (OSTI)

Over the past century, fossil fuel consumption has added carbon dioxide to the atmosphere at rapidly increasing rates. The prospect of further acceleration of this rate by turning from petroleum to coal has alarmed climatologists because of possible catastrophic long term effects on world climate. An alternative to discharging carbon dioxide into the atmosphere is to find new uses. One possible use is in 'Biofactories'. Biofactories may be achieved by exploiting two new developing technologies: Solar (Photosynthesis) energy, and genetic engineering. Some exciting new developments in genetic engineering will be touched on together with established bio-engineering-aquaculture, hydroponics, yeast, pharmaceutical production, fermentation, single cell protein, etc. A 'bio-factory' will be described, with a feed stream of carbon dioxide, water, nutrients containing sulfur, nitrogen, phosphorus and trace elements, and living culture interacting with light under controlled conditions to yield food and raw materials. Candidate products will be suggested and a few of the problems anticipated. Engineering and logistic requirements will be outlined and the economic impact assessed.

McKinney, A. R.

1982-01-01T23:59:59.000Z

84

Carbon dioxide and climate: a bibliography  

SciTech Connect

This bibliography with abstracts presents 394 citations retrieved from the Energy Data Base of the Department of Energy Technical Information Center, Oak Ridge, Tennessee. The citations cover all aspects of the climatic effects of carbon dioxide emissions to the atmosphere. These include carbon cycling, temperature effects, carbon dioxide control technologies, paleoclimatology, carbon dioxide sources and sinks, mathematical models, energy policies, greenhouse effect, and the role of the oceans and terrestrial forests.

Ringe, A.C. (ed.)

1980-10-01T23:59:59.000Z

85

Application of numerical, experimental and life cycle assessment methods to the investigation of natural gas production from methane hydrate deposits using carbon dioxide clathrate sequestration.  

E-Print Network (OSTI)

??Natural gas hydrates, commonly called methane (CH4) hydrates, are ice-like materials belonging to the family of clathrates that form at low temperature and high pressure.… (more)

Nago, Annick

2013-01-01T23:59:59.000Z

86

Carbon ion pump for removal of carbon dioxide from combustion ...  

Biomass and Biofuels; Building Energy Efficiency; ... Carbon ion pump for removal of carbon dioxide from combustion gas and other gas mixtures United States Patent ...

87

TABLE OF CONTENTS Carbon Dioxide Reduction Metallurgy  

Science Conference Proceedings (OSTI)

Chemical Utilization of Sequestered Carbon Dioxide as a. Booster of Hydrogen ... CO2 Capture and Sequestration – Implications for the Metals. Industry.

88

Atmospheric carbon dioxide and the greenhouse effect  

SciTech Connect

This document contains a non-technical review of the problems associated with atmospheric carbon dioxide and the resulting greenhouse effect. (TEM)

Firestine, M.W. (ed.)

1989-05-01T23:59:59.000Z

89

Carbon Dioxide Transportation and Sequestration Act (Illinois...  

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

process for the issuance of a certificate of authority by an owner or operator of a pipeline designed, constructed, and operated to transport and to sequester carbon dioxide...

90

Carbon Dioxide Capture by Absorption with Potassium Carbonate  

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

Carbon Dioxide Capture by Absorption Carbon Dioxide Capture by Absorption with Potassium Carbonate Background Although alkanolamine solvents, such as monoethanolamine (MEA), and solvent blends have been developed as commercially-viable options for the absorption of carbon dioxide (CO 2 ) from waste gases, natural gas, and hydrogen streams, further process improvements are required to cost-effectively capture CO 2 from power plant flue gas. The promotion of potassium carbonate (K

91

EA-1846: Demonstration of Carbon Dioxide Capture and Sequestration of Steam  

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

46: Demonstration of Carbon Dioxide Capture and Sequestration 46: Demonstration of Carbon Dioxide Capture and Sequestration of Steam Methane Reforming Process Gas Used for Large-Scale Hydrogen Production, Port Arthur, Texas EA-1846: Demonstration of Carbon Dioxide Capture and Sequestration of Steam Methane Reforming Process Gas Used for Large-Scale Hydrogen Production, Port Arthur, Texas Overview DOE completed a final environmental assessment (EA) for a project under Area I of the Industrial Carbon Capture and Sequestration from Industrial Sources and Innovative Concepts for Beneficial CO2 Use . Based on the analyses in the EA DOE determined that its proposed action - awarding a grant to Air Products and Chemicals, Inc. to design and demonstrate a state-of-the-art system to concentrate carbon dioxide (CO,) from two steam

92

Short-Term Carbon Dioxide Exchange and Environmental Factors in a Boreal Fen  

E-Print Network (OSTI)

Introduction Northern peatlands are important contributors to the global carbon cycle. In cold and moist climatic conditions, boreal peatlands have sequestered large amounts of atmospheric carbon during the past few thousand years (GORHAM 1991). The carbon balance in mires depends on the rates of photosynthesis and respiration which are affected by both the long-term and the short-term variations in environmental factors. So far, more emphasis has been put on the annual carbon balance of mires, and short-term dynamics have received less attention. However, a relationship between the carbon dioxide and methane cycling has been proposed as newly photosynthesized carbon provides substrates for methanogenesis substrates and promotes methane emissions (WHITING & CHANTON 1993). To analyze the connection between green plant photosynthesis and methane emissions, we need to analyze the short-term dynamics of carbon dioxide exchange. Consequently, we use earlier data (ALM et al. 1997) to study

Anu Kettunen

2000-01-01T23:59:59.000Z

93

Reduction of carbon dioxide emissions by mineral carbonation  

Science Conference Proceedings (OSTI)

The study investigates the technologies that have the potential to provide feasible reduction of carbon dioxide (CO2) from a reference power plant. Particular focus has been given to mineral carbonation (at 1 bar) in which magnesium (Mg) and/or ... Keywords: carbon dioxide, emissions, mineral carbonation

C. J. Sturgeon; M. G. Rasul; Ashfaque Ahmed Chowdhury

2010-02-01T23:59:59.000Z

94

Carbon dioxide disposal in solid form  

SciTech Connect

Coal reserves can provide for the world`s energy needs for centuries. However, coal`s long term use may be severely curtailed if the emission of carbon dioxide into the atmosphere is not eliminated. We present a safe and permanent method of carbon dioxide disposal that is based on combining carbon dioxide chemically with abundant raw materials to form stable carbonate minerals. We discuss the availability of raw materials and potential process designs. We consider our initial rough cost estimate of about 3{cents}/kWh encouraging. The availability of a carbon dioxide fixation technology would serve as insurance in case global warming, or the perception of global warming, causes severe restrictions on carbon dioxide emissions. If the increased energy demand of a growing world population is to be satisfied from coal, the implementation of such a technology would quite likely be unavoidable.

Lackner, K.S.; Butt, D.P.; Sharp, D.H. [Los Alamos National Lab., NM (United States); Wendt, C.H. [Auxon Corp., (United States)

1995-12-31T23:59:59.000Z

95

EIA - Greenhouse Gas Emissions - Carbon Dioxide Emissions  

Gasoline and Diesel Fuel Update (EIA)

2. Carbon Dioxide Emissions 2. Carbon Dioxide Emissions 2.1. Total carbon dioxide emissions Annual U.S. carbon dioxide emissions fell by 419 million metric tons in 2009 (7.1 percent), to 5,447 million metric tons (Figure 9 and Table 6). The annual decrease-the largest over the 19-year period beginning with the 1990 baseline-puts 2009 emissions 608 million metric tons below the 2005 level, which is the Obama Administration's benchmark year for its goal of reducing U.S. emissions by 17 percent by 2020. The key factors contributing to the decrease in carbon dioxide emissions in 2009 included an economy in recession with a decrease in gross domestic product of 2.6 percent, a decrease in the energy intensity of the economy of 2.2 percent, and a decrease in the carbon intensity of energy supply of

96

Why sequence functional metagenomics of methane and nitrogen...  

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

functional metagenomics of methane and nitrogen cycles in freshwater lakes? Methane is a more potent greenhouse gas than carbon dioxide, but it is also a potential source of...

97

Carbon Dioxide Information Analysis Center (CDIAC)  

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

Latest Estimates Latest Estimates Atmos CO2 Level 397.31 ppm Fossil CO2 Emissions 9,167 MMT Carbon Global Temp Anomaly +0.56°C / +1.01°F Global Sea Level Rise +2.9 ± 0.4 mm/y Carbon Dioxide Information Analysis Center The Carbon Dioxide Information Analysis Center (CDIAC) is the primary climate-change data and information analysis center of the U.S. Department of Energy (DOE). CDIAC is located at DOE's Oak Ridge National Laboratory (ORNL) and includes the World Data Center for Atmospheric Trace Gases. CDIAC's data holdings include estimates of carbon dioxide emissions from fossil-fuel consumption and land-use changes; records of atmospheric concentrations of carbon dioxide and other radiatively active trace gases; carbon cycle and terrestrial carbon management datasets and analyses; and

98

ORNL DAAC, Effects of Increased Carbon Dioxide, Dec. 11, 2002  

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

Increased Carbon Dioxide on Vegetation The ORNL DAAC announces the release of a data set entitled "Effects of Elevated Carbon Dioxide on Litter Chemistry and Decomposition." The...

99

Geologic Carbon Dioxide Storage Field Projects Supported by DOE...  

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

Geologic Carbon Dioxide Storage Field Projects Supported by DOE's Sequestration Program Geologic Carbon Dioxide Storage Field Projects Supported by DOE's Sequestration Program...

100

Recovery Act: Re-utilization of Industrial Carbon Dioxide for...  

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

Re-utilization of Industrial Carbon Dioxide for Algae Production Using a Phase Change Material Background Worldwide carbon dioxide (CO 2 ) emissions from human activity have...

Note: This page contains sample records for the topic "methane carbon dioxide" 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

EA-1336: Ocean Sequestration of Carbon Dioxide Field Experiment...  

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

6: Ocean Sequestration of Carbon Dioxide Field Experiment, Pittsburgh, Pennsylvania EA-1336: Ocean Sequestration of Carbon Dioxide Field Experiment, Pittsburgh, Pennsylvania...

102

Haverford Researchers Create Carbon Dioxide-Separating Polymer  

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

Haverford College Researchers Create Carbon Dioxide-Separating Polymer Haverford College Researchers Create Carbon Dioxide-Separating Polymer August 1, 2012 | Tags: Basic Energy...

103

Cost and Performance of Carbon Dioxide Capture from Power Generation...  

Open Energy Info (EERE)

on Facebook icon Twitter icon Cost and Performance of Carbon Dioxide Capture from Power Generation Jump to: navigation, search Name Cost and Performance of Carbon Dioxide...

104

Changes related to "Cost and Performance of Carbon Dioxide Capture...  

Open Energy Info (EERE)

icon Changes related to "Cost and Performance of Carbon Dioxide Capture from Power Generation" Cost and Performance of Carbon Dioxide Capture from Power Generation...

105

Why do carbon dioxide emissions weigh more than the ...  

U.S. Energy Information Administration (EIA)

Why do carbon dioxide emissions weigh more than the original fuel? Carbon dioxide emissions weigh more than the original fuel because during complete ...

106

Improving the Carbon Dioxide Emission Estimates from the Combustion...  

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

Improving the Carbon Dioxide Emission Estimates from the Combustion of Fossil Fuels in California and Spatial Disaggregated Estimate of Energy-related Carbon Dioxide for California...

107

Improving the Carbon Dioxide Emission Estimates from the Combustion...  

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

the Carbon Dioxide Emission Estimates from the Combustion of Fossil Fuels in California Title Improving the Carbon Dioxide Emission Estimates from the Combustion of Fossil Fuels in...

108

Emerging Energy-efficiency and Carbon Dioxide Emissions-reduction...  

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

Energy-efficiency and Carbon Dioxide Emissions-reduction Technologies for the Iron and Steel Industry Title Emerging Energy-efficiency and Carbon Dioxide Emissions-reduction...

109

Carbon Dioxide Capture/Sequestration Tax Deduction (Kansas) ...  

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

Carbon Dioxide CaptureSequestration Tax Deduction (Kansas) Carbon Dioxide CaptureSequestration Tax Deduction (Kansas) Eligibility Commercial Industrial Utility Program...

110

Enhanced carbon monoxide utilization in methanation process  

DOE Green Energy (OSTI)

Carbon monoxide - containing gas streams are passed over a catalyst to deposit a surface layer of active surface carbon thereon essentially without the formation of inactive coke. The active carbon is subsequently reacted with steam or hydrogen to form methane. Surprisingly, hydrogen and water vapor present in the feed gas do not adversely affect CO utilization significantly, and such hydrogen actually results in a significant increase in CO utilization.

Elek, Louis F. (Peekskill, NY); Frost, Albert C. (Congers, NY)

1984-01-01T23:59:59.000Z

111

Carbon Ion Pump for Carbon Dioxide Removal - Energy Innovation ...  

coal fired power plants; oil or gas fired power plants; cement production; bio-fuel combustion; Separation of carbon dioxide from other combustion ...

112

Canada, carbon dioxide and the greenhouse effect  

SciTech Connect

One of the major contributors to the greenhouse effect is carbon dioxide from the combustion of fossil fuels such as coal, oil, and natural gas. Even with its low population density, Canada, on a per capita basis, has the dubious distinction of being the world's fourth largest producer of carbon from carbon dioxide. This paper considers the impact of Canadian carbon dioxide emissions on the greenhouse effect in light of the 1988 Conference on the Changing Atmosphere's recommendations. A computer model has been developed that, when using anticipated Canadian fossil fuel demands, shows that unless steps are taken immediately, Canada will not be able to meet the conference's proposed carbon dioxide reduction of 20 percent of 1988 levels by the year 2005, let alone meet any more substantial cuts that may be required in the future.

Hughes, L.; Scott, S. (Dept. of Mathematics and Computing Science, Saint Mary' s Univ., Halifax, Nova Scotia B3H 3C3 (CA))

1991-01-01T23:59:59.000Z

113

carbon dioxide emissions | OpenEI  

Open Energy Info (EERE)

dioxide emissions dioxide emissions Dataset Summary Description Total annual carbon dioxide emissions by country, 2005 to 2009 (million metric tons). Compiled by Energy Information Administration (EIA). Source EIA Date Released Unknown Date Updated Unknown Keywords carbon dioxide emissions EIA world Data text/csv icon total_carbon_dioxide_emissions_from_the_consumption_of_energy_2005_2009million_metric_tons.csv (csv, 12.3 KiB) Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage Frequency Time Period 2005 - 2009 License License Other or unspecified, see optional comment below Comment Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset Average vote Your vote Ease of access Average vote Your vote Overall rating

114

Formation of rare earth carbonates using supercritical carbon dioxide  

DOE Patents (OSTI)

The invention relates to a process for the rapid, high yield conversion of select rare earth oxides or hydroxides, to their corresponding carbonates by contact with supercritical carbon dioxide.

Fernando, Quintus (Tucson, AZ); Yanagihara, Naohisa (Zacopan, MX); Dyke, James T. (Santa Fe, NM); Vemulapalli, Krishna (Tuscon, AZ)

1991-09-03T23:59:59.000Z

115

Sequestration of Carbon Dioxide in Coal Seams  

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

Carbon Dioxide in Coal Seams K. Schroeder (schroede@netl.doe.gov; 412.386.5910) U.S. Department of Energy National Energy Technology Laboratory P.O. Box 10940 Pittsburgh, PA 15236...

116

Carbon Dioxide Variability and Atmospheric Circulation  

Science Conference Proceedings (OSTI)

Hourly values of the concentration of atmospheric carbon dioxide at Mauna Loa Observatory (MLO) formed the basis for an investigation of concentration fluctuations on daily to monthly time scales. In agreement with earlier studies we found no ...

James C. Sadler; Colin S. Ramage; Arnold M. Hori

1982-06-01T23:59:59.000Z

117

Turning unwanted carbon dioxide into electricity  

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

and use it as a tool to boost electric power. Turning unwanted carbon dioxide into electricity Anne M Stark, LLNL, (925) 422-9799, stark8@llnl.gov High Resolution Image The...

118

Carbon Dioxide Emission Factors for Coal  

Reports and Publications (EIA)

The Energy Information Administration (EIA) has developed factors for estimating the amount of carbon dioxide emitted, accounting for differences among coals, to reflect the changing "mix" of coal in U.S. coal consumption.

William Watson

1994-08-01T23:59:59.000Z

119

Regulating carbon dioxide capture and storage  

E-Print Network (OSTI)

This essay examines several legal, regulatory and organizational issues that need to be addressed to create an effective regulatory regime for carbon dioxide capture and storage ("CCS"). Legal, regulatory, and organizational ...

De Figueiredo, Mark A.

2007-01-01T23:59:59.000Z

120

Influence of Shrinkage and Swelling Properties of Coal on Geologic Sequestration of Carbon Dioxide  

SciTech Connect

The potential for enhanced methane production and geologic sequestration of carbon dioxide in coalbeds needs to be evaluated before large-scale sequestration projects are undertaken. Geologic sequestration of carbon dioxide in deep unmineable coal seams with the potential for enhanced coalbed methane production has become a viable option to reduce greenhouse gas emissions. The coal matrix is believed to shrink during methane production and swell during the injection of carbon dioxide, causing changes in tlie cleat porosity and permeability of the coal seam. However, the influence of swelling and shrinkage, and the geomechanical response during the process of carbon dioxide injection and methane recovery, are not well understood. A three-dimensional swelling and shrinkage model based on constitutive equations that account for the coupled fluid pressure-deformation behavior of a porous medium was developed and implemented in an existing reservoir model. Several reservoir simulations were performed at a field site located in the San Juan basin to investigate the influence of swelling and shrinkage, as well as other geomechanical parameters, using a modified compositional coalbed methane reservoir simulator (modified PSU-COALCOMP). The paper presents numerical results for interpretation of reservoir performance during injection of carbon dioxide at this site. Available measured data at the field site were compared with computed values. Results show that coal swelling and shrinkage during the process of enhanced coalbed methane recovery can have a significant influence on the reservoir performance. Results also show an increase in the gas production rate with an increase in the elastic modulus of the reservoir material and increase in cleat porosity. Further laboratory and field tests of the model are needed to furnish better estimates of petrophysical parameters, test the applicability of thee model, and determine the need for further refinements to the mathematical model.

Siriwardane, H.J.; Gondle, R.; Smith, D.H.

2007-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "methane carbon dioxide" 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.


121

Vehicle Technologies Office: Fact #464: April 9, 2007 Carbon Dioxide  

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

4: April 9, 2007 4: April 9, 2007 Carbon Dioxide Emissions to someone by E-mail Share Vehicle Technologies Office: Fact #464: April 9, 2007 Carbon Dioxide Emissions on Facebook Tweet about Vehicle Technologies Office: Fact #464: April 9, 2007 Carbon Dioxide Emissions on Twitter Bookmark Vehicle Technologies Office: Fact #464: April 9, 2007 Carbon Dioxide Emissions on Google Bookmark Vehicle Technologies Office: Fact #464: April 9, 2007 Carbon Dioxide Emissions on Delicious Rank Vehicle Technologies Office: Fact #464: April 9, 2007 Carbon Dioxide Emissions on Digg Find More places to share Vehicle Technologies Office: Fact #464: April 9, 2007 Carbon Dioxide Emissions on AddThis.com... Fact #464: April 9, 2007 Carbon Dioxide Emissions Carbon dioxide (CO2) emissions from the transportation sector began to

122

Methane Emissions - Energy Information Administration  

U.S. Energy Information Administration (EIA)

Carbon Dioxide Equivalent; Estimated 2003 ... for about 8.7 percent of total U.S. greenhouse gas emissions when weighted by methane’s global warming potential factor.

123

Bayesian Modelling Volatility of Growth Rate in Atmospheric Carbon Dioxide Concentrations  

Science Conference Proceedings (OSTI)

Atmospheric gases, such as carbon dioxide, ozone, methane, nitrous oxide, and etc., create a natural greenhouse effect and cause climate change. Therefore, modelling behavior of these gases could help policy makers to control greenhouse effects. In a ... Keywords: Stochastic volatility, Smooth transition autoregressive, Markov chain Monte Carlo, methods, Bayesian, ARCH, GARCH

Esmail Amiri

2009-12-01T23:59:59.000Z

124

Method for Extracting and Sequestering Carbon Dioxide  

DOE Patents (OSTI)

A method and apparatus to extract and sequester carbon dioxide (CO2) from a stream or volume of gas wherein said method and apparatus hydrates CO2, and reacts the resulting carbonic acid with carbonate. Suitable carbonates include, but are not limited to, carbonates of alkali metals and alkaline earth metals, preferably carbonates of calcium and magnesium. Waste products are metal cations and bicarbonate in solution or dehydrated metal salts, which when disposed of in a large body of water provide an effective way of sequestering CO2 from a gaseous environment.

Rau, Gregory H.; Caldeira, Kenneth G.

2005-05-10T23:59:59.000Z

125

CARBON DIOXIDE SEQUESTRATION ENHANCED COALBED METHANE RECOVERY  

E-Print Network (OSTI)

restructuring policies, resulting in a decline in coal production and consump- tion. Although China found a net increase in coal-bed emissions from 5.58 Tg CH4 in 1990 to 6.75 Tg in 1996, falling to 5 is that they are increasing steadily, because of the large quantities of coal being used to fuel a fast-growing industrial

Nur, Amos

126

Methane Emissions from Rice Fields - Final Report  

SciTech Connect

Methane (Ch4) is a greenhouse gas regarded second only to carbon dioxide in its ability to cause global warming. Methane is important because of its relatively fast increase, and also because it is, per molecule, some 60 times more effective than carbon dioxide in causing global warming. The largest present anthropogenic sources of methane are rice fields, cattle and biomass burning.

Khalil, M. Aslam; Rasmussen,Reinhold A.

2002-12-03T23:59:59.000Z

127

A Vortex Contactor for Carbon Dioxide Separations  

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

Vortex Contactor for Carbon Dioxide Separations Vortex Contactor for Carbon Dioxide Separations Kevin T. Raterman (ratekt@inel.gov; 208-526-5444) Michael McKellar (mgq@inel.gov; 208-526-1346) Anna Podgorney (poloak@inel.gov; 208-526-0064) Douglas Stacey (stacde@inel.gov; 208-526-3938) Terry Turner (tdt@inel.gov; 208-526-8623) Idaho National Engineering and Environmental Laboratory P.O. Box 1625 Idaho Falls, Idaho 83415-2110 Brian Stokes (bxs9@pge.com; 415-972-5591) John Vranicar (jjv2@pge.com; 415-972-5591) Pacific Gas & Electric Company 123 Mission Street San Francisco, CA 94105 Introduction Many analysts 1,2,3 identify carbon dioxide (CO 2 ) capture and separation as a major roadblock in efforts to cost effectively mitigate greenhouse gas emissions via sequestration. An assessment 4 conducted by the International Energy Agency (IEA)

128

Polymers for metal extractions in carbon dioxide  

DOE Patents (OSTI)

A composition useful for the extraction of metals and metalloids comprises (a) carbon dioxide fluid (preferably liquid or supercritical carbon dioxide); and (b) a polymer in the carbon dioxide, the polymer having bound thereto a ligand that binds the metal or metalloid; with the ligand bound to the polymer at a plurality of locations along the chain length thereof (i.e., a plurality of ligands are bound at a plurality of locations along the chain length of the polymer). The polymer is preferably a copolymer, and the polymer is preferably a fluoropolymer such as a fluoroacrylate polymer. The extraction method comprises the steps of contacting a first composition containing a metal or metalloid to be extracted with a second composition, the second composition being as described above; and then extracting the metal or metalloid from the first composition into the second composition.

DeSimone, Joseph M. (7315 Crescent Ridge Dr., Chapel Hill, NC 27516); Tumas, William (1130 Big Rock Loop, Los Alamos, NM 87544); Powell, Kimberly R. (103 Timber Hollow Ct. Apartment 323, Chapel Hill, NC 27514); McCleskey, T. Mark (1930 Camino Mora, Los Alamos, NM 87544); Romack, Timothy J. (5810 Forest Ridge Dr., Durham, NC 27713); McClain, James B. (8530 Sommersweet La., Raleigh, NC 27612); Birnbaum, Eva R. (1930 Camino Mora, Los Alamos, NM 87544)

2001-01-01T23:59:59.000Z

129

Carbon Dioxide Utilization Archived Projects  

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

Utility Mercury Sorbent Field Testing Program Sorbent Technologies Corporation Western Kentucky University 9292003 Enhanced Practical Photosynthesis Carbon Sequestration ORNL...

130

EIA - International Energy Outlook 2007 - Energy-Related Carbon Dioxide  

Gasoline and Diesel Fuel Update (EIA)

Energy-Relaated Carbon Dioxide Emissions Energy-Relaated Carbon Dioxide Emissions International Energy Outlook 2007 Chapter 7 - Energy-Related Carbon Dioxide Emissions In 2004, non-OECD emissions of carbon dioxide were greater than OECD emissions for the first time. In 2030, carbon dioxide emissions from the non-OECD countries are projected to exceed those from the OECD countries by 57 percent. Figure 77. World Energy-Related Carbon Dioxide Emissions by Region, 2003-2030 (Billion Metric Tons). Need help, contact the National Energy Information Center on 202-585-8800. Figure Data Figure 78. World energy-Related Carbon Dioxide Emissions by Fuel Type, 1990-2030 (Billion Metric Tons). Need help, contact the National Energy at 202-586-8800. Figure Data Carbon dioxide is the most abundant anthropogenic (human-caused) greenhouse

131

EIA - International Energy Outlook 2008-Energy-Related Carbon Dioxide  

Gasoline and Diesel Fuel Update (EIA)

Energy-Related Carbon Dioxide Emissions Energy-Related Carbon Dioxide Emissions International Energy Outlook 2008 Chapter 7 - Energy-Related Carbon Dioxide Emissions In 2005, non-OECD emissions of carbon dioxide exceeded OECD emissions by 7 percent. In 2030, carbon dioxide emissions from the non-OECD countries are projected to exceed those from the OECD countries by 72 percent. Figure 75. World Energy-Related Carbon Dioxide Emissions, 2005-2030 (Billion Metric Tons). Need help, contact the National Energy Information Center at 202-586-8800. Figure Data Figure 76. World Energy-Related Carbon Dioxide Emissions by Fuel Type, 1990-2030 (Billion Metric Tons). Need help, contact the National Energy Information Center at 202-586-8800. Figure Data Figure 77. Average Annual Growth in Energy-Related Carbon Dioxide Emissions in the OECD Economies, 2005-2030 (Percent per Year). Need help, contact the National Energy Information Center at 202-586-8800.

132

Recycling Carbon Dioxide to Make Plastics | Department of Energy  

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

Recycling Carbon Dioxide to Make Plastics Recycling Carbon Dioxide to Make Plastics May 20, 2013 - 1:31pm Addthis Novomers thermoplastic pellets incorporate waste CO2 into a...

133

New Texas Oil Project Will Help Keep Carbon Dioxide Underground...  

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

Texas Oil Project Will Help Keep Carbon Dioxide Underground New Texas Oil Project Will Help Keep Carbon Dioxide Underground February 5, 2013 - 12:05pm Addthis The Air Products and...

134

How much carbon dioxide is produced by burning gasoline and ...  

U.S. Energy Information Administration (EIA)

How much carbon dioxide is produced by burning gasoline and diesel fuel? About 19.64 pounds of carbon dioxide (CO 2) are produced from burning a gallon of gasoline ...

135

Carbon Dioxide Capture/Sequestration Tax Deduction (Kansas)  

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

Carbon Dioxide Capture/Sequestration Tax Deduction allows a taxpayer a deduction to adjusted gross income with respect to the amortization of the amortizable costs of carbon dioxide capture,...

136

Carbon Dioxide and Other Greenhouse Gas Reduction Metallurgy  

Science Conference Proceedings (OSTI)

About this Symposium. Meeting, 2011 TMS Annual Meeting & Exhibition. Symposium, Carbon Dioxide and Other Greenhouse Gas Reduction Metallurgy - 2011.

137

Energy use and carbon dioxide emissions in energy-intensive industries in key developing countries  

E-Print Network (OSTI)

Structural Factors Affecting Energy Use and Carbon DioxideStructural Factors Affecting Energy Use and Carbon Dioxide

Price, Lynn; Worrell, Ernst; Phylipsen, Dian

1999-01-01T23:59:59.000Z

138

Carbon Dioxide Capture from Coal-Fired  

E-Print Network (OSTI)

Carbon Dioxide Capture from Coal-Fired Power Plants: A Real Options Analysis May 2005 MIT LFEE 2005. LFEE 2005-002 Report #12;#12;i ABSTRACT Investments in three coal-fired power generation technologies environment. The technologies evaluated are pulverized coal (PC), integrated coal gasification combined cycle

139

Acid sorption regeneration process using carbon dioxide  

DOE Patents (OSTI)

Carboxylic acids are sorbed from aqueous feedstocks onto a solid adsorbent in the presence of carbon dioxide under pressure. The acids are freed from the sorbent phase by a suitable regeneration method, one of which is treating them with an organic alkylamine solution thus forming an alkylamine-carboxylic acid complex which thermally decomposes to the desired carboxylic acid and the alkylamine.

King, C. Judson (Kensington, CA); Husson, Scott M. (Anderson, SC)

2001-01-01T23:59:59.000Z

140

Synthetic fuels, carbon dioxide and climate  

Science Conference Proceedings (OSTI)

The observed increase in atmospheric carbon dioxide (CO2) has been attributed to the use of fossil fuels. There is concern that the generation and use of synthetic fuels derived from oil shale and coal will accelerate the increase of CO2.

Alex R. Sapre; John R. Hummel; Ruth A. Reck

1982-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "methane carbon dioxide" 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

DOE Hydrogen Analysis Repository: Carbon Dioxide Compression, Transport,  

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

Carbon Dioxide Compression, Transport, and Storage Carbon Dioxide Compression, Transport, and Storage Project Summary Full Title: Techno-Economic Models for Carbon Dioxide Compression, Transport, and Storage & Correlations for Estimating Carbon Dioxide Density and Viscosity Project ID: 195 Principal Investigator: David McCollum Brief Description: This project addresses several components of carbon capture and storage (CCS) costs, provides technical models for determining the engineering and infrastructure requirements of CCS, and describes some correlations for estimating CO2 density and viscosity. Keywords: Pipeline, transportation, greenhouse gases (GHG), costs, technoeconomic analysis Purpose Estimate costs of carbon dioxide capture, compression, transport, storage, etc., and provide some technical models for determining the engineering and

142

SEQUESTERING CARBON DIOXIDE IN COALBEDS  

SciTech Connect

The authors' long term goal is to develop accurate prediction methods for describing the adsorption behavior of gas mixtures on solid adsorbents over complete ranges of temperature, pressure and adsorbent types. The major objectives of the project are to (1) measure the adsorption behavior of pure CO{sub 2}, methane, nitrogen and their binary and ternary mixtures on several selected coals having different properties at temperatures and pressures applicable to the particular coals being studied, (2) generalize the adsorption results in terms of appropriate properties of the coals to facilitate estimation of adsorption behavior for coals other than those studied experimentally, (3) delineate the sensitivity of the competitive adsorption of CO{sub 2}, methane and nitrogen to the specific characteristics of the coal on which they are adsorbed; establish the major differences (if any) in the nature of this competitive adsorption on different coals, and (4) test and/or develop theoretically-based mathematical models to represent accurately the adsorption behavior of mixtures of the type for which measurements are made. The specific accomplishments of this project during this reporting period are summarized in three broad categories outlining experimentation, model development, and coal characterization.

K.A.M. Gasem; R.L. Robinson, Jr.; L.R. Radovic

2001-12-26T23:59:59.000Z

143

Development of Geologic Storage Estimates for Carbon Dioxide  

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

Storage Estimates for Carbon Dioxide Prepared for U.S. Department of Energy National Energy Technology Laboratory Carbon Storage Program September 2010 Summary of the...

144

Recovery Act: Carbon Dioxide-Water Emulsion for Enhanced Oil Recovery and Permanent Sequestration of Carbon Dioxid  

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

Carbon Dioxide-Water Carbon Dioxide-Water Emulsion for Enhanced Oil Recovery and Permanent Sequestration of Carbon Dioxide Background The U.S. Department of Energy (DOE) distributed a portion of American Recovery and Reinvestment Act (ARRA) funds to advance technologies for chemical conversion of carbon dioxide (CO 2 ) captured from industrial sources. The focus of the research projects is permanent sequestration of CO 2 through mineralization or development

145

Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide  

Open Energy Info (EERE)

Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide Geothermal Lab Call Project Jump to: navigation, search Last modified on July 22, 2011. Project Title Carbonation Mechanism of Reservoir Rock by Supercritical Carbon Dioxide Project Type / Topic 1 Laboratory Call for Submission of Applications for Research, Development and Analysis of Geothermal Technologies Project Type / Topic 2 Supercritical Carbon Dioxide / Reservoir Rock Chemical Interactions Project Description Supercritical CO2 is currently becoming a more common fluid for extracting volatile oil and fragrance compounds from various raw materials that are used in perfumery. Furthermore, its use as a heat transmission fluid is very attractive because of the greater uptake capability of heat from hot reservoir rock, compared with that of water. However, one concern was the reactivity of CO2 with clay and rock minerals in aqueous and non-aqueous environments. So if this reaction leads to the formation of water-soluble carbonates, such formation could be detrimental to the integrity of wellbore infrastructure.

146

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

147

SunShot Initiative: 10-Megawatt Supercritical Carbon Dioxide Turbine  

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

10-Megawatt Supercritical Carbon 10-Megawatt Supercritical Carbon Dioxide Turbine to someone by E-mail Share SunShot Initiative: 10-Megawatt Supercritical Carbon Dioxide Turbine on Facebook Tweet about SunShot Initiative: 10-Megawatt Supercritical Carbon Dioxide Turbine on Twitter Bookmark SunShot Initiative: 10-Megawatt Supercritical Carbon Dioxide Turbine on Google Bookmark SunShot Initiative: 10-Megawatt Supercritical Carbon Dioxide Turbine on Delicious Rank SunShot Initiative: 10-Megawatt Supercritical Carbon Dioxide Turbine on Digg Find More places to share SunShot Initiative: 10-Megawatt Supercritical Carbon Dioxide Turbine on AddThis.com... Concentrating Solar Power Systems Components Competitive Awards CSP Research & Development Thermal Storage CSP Recovery Act Baseload CSP SunShot Multidisciplinary University Research Initiative

148

Carbon Dioxide Emissions from Industrialized Countries  

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

6 6 Carbon Dioxide Emissions from Industrialized Countries Extended discussion here Carbon emissions per capita 1973 vs. 1991 by major end use. (Denmark comparison is 1972 and 1991) With the third Conference of the Parties (COP-3) in Kyoto approaching, there is a great deal of excitement over policies designed to reduce future carbon dioxide (CO2) emissions from fossil fuels. At COP-3, more than 130 nations will meet to create legally binding targets for CO2 reductions. Accordingly, we have analyzed the patterns of emissions arising from the end uses of energy (and electricity production) in ten industrialized countries, with surprising and, in some cases, worrisome results. The surprise is that emissions in many countries in the early 1990s were lower than in the 1970s in an absolute sense and on a per capita basis; the worry

149

Method for Sequestering Carbon Dioxide and Sulfur Dioxide Utilizing a Plurality of Waste Streams  

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

Sequestering Carbon Dioxide and Sulfur Dioxide Sequestering Carbon Dioxide and Sulfur Dioxide Utilizing a Plurality of Waste Streams Opportunity The Department of Energy's National Energy Technology Laboratory is seeking licensing partners interested in implementing United States Patent Number 7,922,792 entitled "Method for Sequestering Carbon Dioxide and Sulfur Dioxide Utilizing a Plurality of Waste Streams." Disclosed in this patent is the invention of a neutralization/sequestration method that concomitantly treats bauxite residues from aluminum production processes, as well as brine wastewater from oil and gas production processes. The method uses an integrated approach that coincidentally treats multiple industrial waste by-product streams. The end results include neutralizing caustic

150

Estimation of Carbon Credits in Carbon Dioxide Sequestration Activities  

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

Carbon Credits in Carbon Credits in Carbon Dioxide Sequestration Activities K. Thomas Klasson and Brian H. Davison Oak Ridge National Laboratory * Oak Ridge, Tennessee 37831-6226 Presentation First National Conference on Carbon Sequestration May 14-17, 2001 Washington, DC "The submitted manuscript has been authored by a contractor of the U.S. Government under contract No. DE-AC05-00OR22725. Accordingly, the U.S. Government retains a nonexclusive, royalty-free license to publish or reproduce the published form of this contribution, or allow others to do so, for U.S. Government purposes." * Managed by UT-Battelle, LLC, for the U.S. Department of Energy under contract DE-AC05-00OR22725 1 Estimation of Carbon Credits in Carbon Dioxide Sequestration Activities

151

Carbon Management and Carbon Dioxide Reduction  

Science Conference Proceedings (OSTI)

Cost-Effective Gas Stream Component Analysis Techniques and Strategies for Carbon Capture Systems from Oxy-Fuel Combustion (An Overview).

152

NETL: Carbon Dioxide 101 FAQs  

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

What are people doing now to manage CO2? What are people doing now to manage CO2? SECARB's injection operations at the Mississippi test site in Escatawpa, Mississippi SECARB's injection operations at the Mississippi test site in Escatawpa, Mississippi. A combined portfolio of carbon management options is being implemented to reduce current emission levels associated with energy production while enhancing energy security and building the technologies and knowledge base for export to other countries faced with reducing emissions. The U.S. portfolio includes: (1) use fuels with reduced carbon intensity - renewables, nuclear, and natural gas; (2) adopt more efficient technologies on both the energy demand and supply sides; and (3) use carbon capture and storage (CCS) technology. CCS is a viable emission management option

153

EIA - 2010 International Energy Outlook - Energy-Related Carbon Dioxide  

Gasoline and Diesel Fuel Update (EIA)

Energy-Related Carbon Dioxide Emissions Energy-Related Carbon Dioxide Emissions International Energy Outlook 2010 Energy-Related Carbon Dioxide Emissions In 2007, non-OECD energy-related emissions of carbon dioxide exceeded OECD emissions by 17 percent. In the IEO2010 Reference case, energy-related carbon dioxide emissions from non-OECD countries in 2035 are about double those from OECD countries. Overview Because anthropogenic emissions of carbon dioxide result primarily from the combustion of fossil fuels, world energy use continues to be at the center of the climate change debate. In the IEO2010 Reference case, world energy-related carbon dioxide emissions29 grow from 29.7 billion metric tons in 2007 to 33.8 billion metric tons in 2020 and 42.4 billion metric tons in 2035 (Table 18).30

154

International Energy Outlook 2006 - Energy-Related Carbon Dioxide Emissions  

Gasoline and Diesel Fuel Update (EIA)

Eneregy-Related Carbon Dioxide Emissions Eneregy-Related Carbon Dioxide Emissions International Energy Outlook 2006 Chapter 7: Energy-Related Carbon Dioxide Emissions In the coming decades, actions to limit greenhouse gas emissions could affect patterns of energy use around the world and alter the level and composition of energy-related carbon dioxide emissions by energy source. Figure 65. World Carbon Dioxide Emissions by Region, 1990-2030 (Billion Metric Tons). Need help, contact the National Energy Information Center at 202-586-8800. Figure Data Figure 66. World Carbon Dioxide Emissions by Fuel Type, 1980-2030 (Billion Metric Tons). Need help, contact the National Energy Information Center at 202-586-8800. Figure Data Carbon dioxide is one of the most prevalent greenhouse gases in the

155

Coal Bed Sequestration of Carbon Dioxide  

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

COAL BED SEQUESTRATION OF CARBON DIOXIDE COAL BED SEQUESTRATION OF CARBON DIOXIDE R. Stanton (rstanton@usgs.gov; 703-648-6462) U.S. Geological Survey MS 956 National Center Reston, VA 20192 R. Flores (rflores@usgs.gov; 303-236-7774) U.S. Geological Survey MS 939, Denver Federal Center Denver, CO 80225 P.D. Warwick (pwarwick@usgs.gov; 703-648-6469) H. Gluskoter (halg@usgs.gov; 703-648-6429) U.S. Geological Survey MS 956 National Center Reston, VA 20192 G.D. Stricker (303-236-7763) U.S. Geological Survey MS 939, Denver Federal Center Denver, CO 80225 Introduction Geologic sequestration of CO 2 generated from fossil fuel combustion may be an environmentally attractive method to reduce the amount of greenhouse gas emissions. Of the geologic options, sequestering CO

156

Atmospheric Carbon Dioxide Record from Mauna Loa  

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

SIO Air Sampling Network » Mauna Loa SIO Air Sampling Network » Mauna Loa Atmospheric Carbon Dioxide Record from Mauna Loa DOI: 10.3334/CDIAC/atg.035 graphics Graphics data Data Investigators R.F. Keeling, S.C. Piper, A.F. Bollenbacher and J.S. Walker Carbon Dioxide Research Group Scripps Institution of Oceanography University of California La Jolla, California 92093-0444, U.S.A. Period of Record 1958-2008 Methods Air samples at Mauna Loa are collected continuously from air intakes at the top of four 7-m towers and one 27-m tower. Four air samples are collected each hour for the purpose of determining the CO2 concentration. Determinations of CO2 are made by using a Siemens Ultramat 3 nondispersive infrared gas analyzer with a water vapor freeze trap. This analyzer registers the concentration of CO2 in a stream of air flowing at ~0.5

157

Solubilities of phenols in supercritical carbon dioxide  

SciTech Connect

Equilibrium solubilities of pure anthracene at 50 C, 1-naphthol at 35, 45, and 55 C, and hydroquinone at 35 and 45 C in supercritical carbon dioxide over a pressure range of about 85--300 bar have been measured using a supercritical fluid extractor coupled with an external high-pressure liquid chromatographer. The solubility results, along with those for other phenols reported in the literature, are correlated with the translated-modified Peng Robinson equation of state.

Coutsikos, P.; Magoulas, K.; Tassios, D. [National Technical Univ. of Athens (Greece)

1995-07-01T23:59:59.000Z

158

Fluid Dynamics of Carbon Dioxide Disposal into Saline Aquifers  

E-Print Network (OSTI)

carbon dioxide can be less than the viscosity of the aqueous phase by a factorcarbon dioxide can be less than the viscosity of the aqueous phase by a factor

Garcia, Julio Enrique

2003-01-01T23:59:59.000Z

159

Method of immobilizing carbon dioxide from gas streams  

DOE Patents (OSTI)

This invention is a method for rapidly and continuously immobilizing carbon dioxide contained in various industrial off-gas streams, the carbon dioxide being immobilized as dry, stable, and substantially water-insoluble particulates. Briefly, the method comprises passing the gas stream through a fixed or fluidized bed of hydrated barium hydroxide to remove and immobilize the carbon dioxide by converting the bed to barium carbonate. The method has several important advantages: it can be conducted effectively at ambient temperature; it provides a very rapid reaction rate over a wide range of carbon dioxide concentrations; it provides high decontamination factors; and it has a high capacity for carbon dioxide. The invention is especially well suited for the removal of radioactive carbon dioxide from off-gases generated by nuclear-fuel reprocessing facilities and nuclear power plants.

Holladay, David W. (Knoxville, TN); Haag, Gary L. (Oliver Springs, TN)

1979-01-01T23:59:59.000Z

160

EA-1336: Ocean Sequestration of Carbon Dioxide Field Experiment,  

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

336: Ocean Sequestration of Carbon Dioxide Field Experiment, 336: Ocean Sequestration of Carbon Dioxide Field Experiment, Pittsburgh, Pennsylvania EA-1336: Ocean Sequestration of Carbon Dioxide Field Experiment, Pittsburgh, Pennsylvania SUMMARY This EA evaluates the environmental impacts for the U.S. Department of Energy National Energy Technology Laboratory's proposal to participate with a group of international organizations in an experiment to evaluate the dispersion and diffusion of liquid carbon dioxide droplets in ocean waters. PUBLIC COMMENT OPPORTUNITIES None available at this time. DOCUMENTS AVAILABLE FOR DOWNLOAD May 4, 2001 EA-1336: Finding of No Significant Impact Ocean Sequestration of Carbon Dioxide Field Experiment May 4, 2001 EA-1336: Final Environmental Assessment Ocean Sequestration of Carbon Dioxide Field Experiment

Note: This page contains sample records for the topic "methane carbon dioxide" 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

Carbon Dioxide Capture Process with Regenerable Sorbents  

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

Dioxide Capture Process with Regenerable Sorbents Dioxide Capture Process with Regenerable Sorbents sorbent material. Additionally, the design of the system incorporates a cross- flow moving-bed reactor where the gas flows horizontally through a "panel" of solid sorbent that is slowly moving down-wards under gravity flow. With the expanded use of fossil fuels expected throughout the world, the increase in CO 2 emissions may prove to contribute even more significantly to global climate change. To address this problem, carbon sequestration scientists and engineers have proposed a number of methods to remove CO 2 from gas streams, such as chemical absorption with a solvent, membrane separation, and cryogenic fractionation. However, all of these methods are expensive and possibly cost-prohibitive for a specific application.

162

Carbon dioxide utilization and seaweed production  

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

dioxide utilization and seaweed production dioxide utilization and seaweed production V.R.P.Sinha World Bank Project Bangladesh Fisheries Research Institute, Mymensingh, Bangladesh e-mails; vrpsinha@ mymensingh.net, vidyut_s@hotmail.com Lowell Fraley L.D. Fraley & Associates, LLC, P.O. Box 1525, Sugarland, TX 77487, USA, e-mail idf@hia.net BS Chowdhry ISS Consultants, Inc. 13111 Westheimer, Suite 303, Houston, Texas 77077, USA, e-mail bsc@issci.com Abstract: Stronger growth in many plants stimulated by increased CO 2 concentration should lead to greater biological productivity with an expected increase in the photosynthetic storage of carbon. Thus, the biosphere will serve as a sink for CO 2 , though it will also act as a source too, because of respiration. Normally net photosynthesis dominates in summer and

163

Organoclay Sorbent for Removal of Carbon Dioxide from Gas ...  

Organoclay Sorbent for Removal of Carbon Dioxide from Gas ... required for sequestration, an area of research identified as a high priority

164

Geomechanical risks in coal bed carbon dioxide sequestration  

E-Print Network (OSTI)

SAF. 1958. The strength of coal in triaxial compression.Geomechanical Risks in Coal Bed Carbon Dioxide Sequestrationof leakage of CO 2 from coal bed sequestration projects. The

Myer, Larry R.

2003-01-01T23:59:59.000Z

165

Figure 18. Energy-related carbon dioxide emissions in three ...  

U.S. Energy Information Administration (EIA)

Sheet3 Sheet2 Sheet1 Figure 18. Energy-related carbon dioxide emissions in three cases, 2005-2040 (million metric tons) Extended Policies No Sunset

166

Carbon Dioxide, Hydrographic, and Chemical Data Obtained in the...  

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

Oceanographic Institution Woods Hole, Massachusetts, U.S.A. Prepared by Alexander Kozyr Carbon Dioxide Information Analysis Center Oak Ridge National Laboratory Oak Ridge,...

167

Dissociation of carbon dioxide in atmospheric pressure microchannel plasma devices.  

E-Print Network (OSTI)

??Plasma discharge of carbon dioxide at atmospheric pressure was successfully demonstrated in microchannel plasma devices at breakdown voltages lower than 1 kVRMS. Optical emissions of… (more)

Oh, Taegon

2013-01-01T23:59:59.000Z

168

Carbon Dioxide, Hydrographic, and Chemical Data Obtained During...  

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

Hole Oceanographic Institution Woods Hole, Massachusetts Prepared by Alexander Kozyr Carbon Dioxide Information Analysis Center Oak Ridge National Laboratory Oak Ridge,...

169

Benchmark Results for TraPPE Carbon Dioxide  

Science Conference Proceedings (OSTI)

Benchmark results for TraPPE Carbon Dioxide. The purpose of these pages is to provide some explicit results from Monte ...

2013-09-20T23:59:59.000Z

170

Carbon Dioxide, Hydrographic, and Chemical Data Obtained During...  

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

**Scripps Institution of Oceanography La Jolla, California Prepared by Alexander Kozyr*** Carbon Dioxide Information Analysis Center Oak Ridge National Laboratory Oak Ridge,...

171

Synchrotron X-ray Studies of Supercritical Carbon Dioxide/ Reservoir...  

Open Energy Info (EERE)

Edit with form History Facebook icon Twitter icon Synchrotron X-ray Studies of Supercritical Carbon Dioxide Reservoir Rock Interfaces Geothermal Lab Call Project Jump to:...

172

Carbon Dioxide, Hydrographic, and Chemical Data Obtained During...  

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

Marine Environmental Laboratory National Oceanic and Atmospheric Administration Seattle, Washington, U.S.A. Prepared by Alexander Kozyr1 Carbon Dioxide Information Analysis...

173

Bulk separation of carbon dioxide from natural gas  

SciTech Connect

In the bulk separation of carbon dioxide from feedstocks containing same in admixture with relatively nonsorbable gases using a zeolitic molecular sieve to adsorb selectively the carbon dioxide, higher product purity is attained by terminating the adsorption stroke using the feedstock while the bed still has capacity to adsorb more carbon dioxide at the same conditions, then purging the void space hydrocarbons from the bed using product carbon dioxide at a high partial pressure, and finally desorbing the bed by pressure reduction. (3 claims)

Collins, J.J.

1973-08-14T23:59:59.000Z

174

Historical Carbon Dioxide Record from the Vostok Ice Core  

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

Vostok Ice Core Historical Carbon Dioxide Record from the Vostok Ice Core graphics Graphics data Data Investigators J.-M. Barnola, D. Raynaud, C. Lorius Laboratoire de Glaciologie...

175

Historical Carbon Dioxide Record from the Siple Station Ice Core  

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

Siple Station Ice Core Historical Carbon Dioxide Record from the Siple Station Ice Core graphics Graphics data Data Investigators A. Neftel, H. Friedli, E. Moor, H. Ltscher, H....

176

Atmospheric Carbon Dioxide Record from Flask Measurements at...  

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

Island Atmospheric Carbon Dioxide Record from Flask Measurements at Lampedusa Island graphics Graphics data Data Investigators Paolo Chamard, Luigi Ciattaglia, Alcide di Sarra,...

177

Available Technologies: Carbon Dioxide Capture at a Reduced Cost  

Scientists at Berkeley Lab have developed a method that reduces the expense of capturing carbon dioxide generated by the combustion of fossil fuels. This technology ...

178

Carbon Dioxide Capture at a Reduced Cost - Energy Innovation ...  

Scientists at Berkeley Lab have developed a method that reduces the expense of capturing carbon dioxide generated by the combustion of fossil fuels. This technology ...

179

Amine Enriched Solid Sorbents for Carbon Dioxide Capture Opportunity  

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

Laboratory is seeking licensing partners interested in implementing United States Patent Number 6,547,854 entitled "Amine Enriched Solid Sorbents for Carbon Dioxide Capture."...

180

EPA's Proposed Greenhouse Gas Reporting Rule for Carbon Dioxide...  

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

EPA's Proposed Greenhouse Gas Reporting Rule for Carbon Dioxide Injection and Geologic Sequestration Mark de Figueiredo U.S. Environmental Protection Agency RCSP Annual Review...

Note: This page contains sample records for the topic "methane carbon dioxide" 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

Louisiana Geologic Sequestration of Carbon Dioxide Act (Louisiana...  

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

industrial, or other uses, including the use of carbon dioxide for enhanced recovery of oil and gas. The mandates a coordinated statewide program related to the storage...

182

EIA - Will carbon capture and storage reduce the world's carbon dioxide  

Gasoline and Diesel Fuel Update (EIA)

Will carbon capture and storage reduce the world's carbon dioxide emissions? Will carbon capture and storage reduce the world's carbon dioxide emissions? International Energy Outlook 2010 Will carbon capture and storage reduce the world'ss carbon dioxide emissions? The pursuit of greenhouse gas reductions has the potential to reduce global coal use significantly. Because coal is the most carbon-intensive of all fossil fuels, limitations on carbon dioxide emissions will raise the cost of coal relative to the costs of other fuels. Under such circumstances, the degree to which energy use shifts away from coal to other fuels will depend largely on the costs of reducing carbon dioxide emissions from coal-fired plants relative to the costs of using other, low-carbon or carbon-free energy sources. The continued widespread use of coal could rely on the cost and availability of carbon capture and storage (CCS) technologies that capture carbon dioxide and store it in geologic formations.

183

Carbon Dioxide Sequestration Industrial-scale processes are available for separating carbon dioxide from the post-  

E-Print Network (OSTI)

-intensive and would lower the thermal efficiency of coal gasification power plants. Selective separation membrane from the post- combustion flue gas of a steam-electric power plant or from the synthesis gas fuel of a coal gasification power plant. The separated carbon dioxide can be compressed and transported

184

THE PATH OF CARBON IN PHOTOSYNTHESIS. X. CARBON DIOXIDE ASSIMILATION IN PLANTS  

E-Print Network (OSTI)

48 The Fath of Carbon i n Photosynthesis X. Carbon Dioxide658 THE PATH O CBRBQM I N PHOTOSYNTHESIS F x CA~ON DIOXIDEr e a c t i o n s of photosynthesis (phosphoglycera t e and

1950-01-01T23:59:59.000Z

185

NETL: Methane Hydrates - DOE/NETL Projects - Properties of Hydrate...  

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

is to measure physical, chemical, mechanical, and hydrologic property changes in methane hydrate-bearing sediments subjected to injection of carbon dioxide and nitrogen....

186

NETL: Methane Hydrates - 2012 Ignik Sikumi gas hydrate field...  

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

fluid, by flowmeters in the Low-flow Gas Measurement Skid. Compositional analysis of methane, nitrogen, carbon dioxide, and tracers pumped during injection are being monitored...

187

Swapping Global Warming Gases for Methane in Gas Hydrate ...  

Science Conference Proceedings (OSTI)

Swapping Global Warming Gases for Methane in Gas Hydrate Layer ... would serve as energy sources as well as carbon dioxide storage sites in the ...

2006-07-20T23:59:59.000Z

188

Innovative Concepts for Beneficial Reuse of Carbon Dioxide | Department of  

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

Innovative Concepts for Beneficial Reuse of Carbon Dioxide Innovative Concepts for Beneficial Reuse of Carbon Dioxide Innovative Concepts for Beneficial Reuse of Carbon Dioxide Funding for 12 projects to test innovative concepts for the beneficial use of carbon dioxide (CO2) was announced by the U.S. Department of Energy. The awards are part of $1.4 billion in funding from the American Recovery and Reinvestment Act (ARRA) for projects that will capture carbon dioxide from industrial sources. These 12 projects will engage in a first phase feasibility study that will examine beneficial uses in a variety of ways, including mineralization to carbonates directly through conversion of CO2 in flue gas; the use of CO2 from power plants or industrial applications to grow algae/biomass; and conversion of CO2 to fuels and chemicals. Each project will be subject to

189

DOE Report Assesses Potential for Carbon Dioxide Storage Beneath Federal  

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

Report Assesses Potential for Carbon Dioxide Storage Beneath Report Assesses Potential for Carbon Dioxide Storage Beneath Federal Lands DOE Report Assesses Potential for Carbon Dioxide Storage Beneath Federal Lands May 14, 2009 - 1:00pm Addthis Washington, DC - As a complementary document to the U.S. Department of Energy's Carbon Sequestration Atlas of the United States and Canada issued in November 2008, the Office of Fossil Energy's National Energy Technology Laboratory has now released a report that provides an initial estimate of the potential to store carbon dioxide (CO2) underneath millions of acres of Federal lands. The report, Storage of Captured Carbon Dioxide Beneath Federal Lands, estimates and characterizes the storage potential that lies beneath some of the more than 400 million acres of Federal land available for lease.

190

Reforming of methane with carbon dioxide to synthesize gas over supported rhodium catalysts: II. A steady-state tracing analysis: Mechanistic aspects of the carbon and oxygen reaction pathways to form CO  

SciTech Connect

Steady-state tracing techniques have been applied to investigate mechanistic aspects of the CH{sub 4} reforming reaction over CO{sub 2} over Rh supported on yttria-stabilized zirconia (YSZ) and Al{sub 2}O{sub 3} as catalysts. It was found that the surface coverage of active carbon-containing species, which are found in the reaction pathway to CO formation, is of the order of 0.2 over the Rh/Al{sub 2}O{sub 3} catalyst, while it is very small ({theta}{sub c}, < 0.02) over Rh/YSZ. The surface coverage of active oxygen-containing species which lead to the formation of CO is found to be very small over both Rh/Al{sub 2}O{sub 3} and Rh/YSZ catalysts. However, over the Rh/YSZ catalyst it was found that there exists a large reservoir of lattice oxygen species of the carrier which interact reversibly with gaseous CO{sub 2} under reforming reaction conditions. A spillover of these lattice oxygen species onto the Rh surface seems to occur, contributing to the formation of CO and H{sub 2}O. This reaction route proceeds in parallel with the reforming reaction on the Rh surface. 27 refs., 12 figs.

Efstathiou, A.M.; Kladi, A.; Tsipouriari, V.A. [Univ. of Patras (Greece)] [and others

1996-01-01T23:59:59.000Z

191

China's Industrial Carbon Dioxide Emissions in Manufacturing Subsectors and in Selected Provinces  

E-Print Network (OSTI)

U.S. Energy-Related Carbon Dioxide Emissions, 2010. ” AugustChina’s Industrial Carbon Dioxide Emissions in ManufacturingChina’s Industrial Carbon Dioxide Emissions in Manufacturing

Lu, Hongyou

2013-01-01T23:59:59.000Z

192

Structural and electronic studies of complexes relevant to the electrocatalyic reduction of carbon dioxide  

E-Print Network (OSTI)

1981) Facile reduction of carbon dioxide by anionic Group 6bReduction of Carbon Dioxide on Mercury Electrode.in Reduction of Carbon-Dioxide. J. Chem. Soc. -Chem.

Benson, Eric Edward

2012-01-01T23:59:59.000Z

193

Pressure buildup during supercritical carbon dioxide injection from a partially penetrating borehole into gas reservoirs  

E-Print Network (OSTI)

interface solution for carbon dioxide injection into porousJ.E. Fluid Dynamics of Carbon Dioxide Disposal into SalineGeologic storage of carbon dioxide as a climate change

Mukhopadhyay, S.

2013-01-01T23:59:59.000Z

194

Lessons Learned from Natural and Industrial Analogues for Storage of Carbon Dioxide in Deep Geological Formations  

E-Print Network (OSTI)

and E.R. Slatick, Carbon Dioxide Emission Factors for Coal,oxygen-deficiency is a factor. CARBON DIOXIDE - CO 2 MSDS (Carbon Dioxide will be reached before oxygen-deficiency is a factor.

Benson, Sally M.; Hepple, Robert; Apps, John; Tsang, Chin-Fu; Lippmann, Marcelo

2002-01-01T23:59:59.000Z

195

Biomass burning sources of nitrogen oxides, carbon monoxide, and non-methane hydrocarbons  

SciTech Connect

Biomass burning is an important source of many key tropospheric species, including aerosols, carbon dioxide (CO{sub 2}), nitrogen oxides (NO{sub {times}}=NO+NO{sub 2}), carbon monoxide (CO), methane (CH{sub 4}), nitrous oxide (N{sub 2}O), methyl bromide (CH{sub 3}Br), ammonia (NH{sub 3}), non-methane hydrocarbons (NMHCs) and other species. These emissions and their subsequent products act as pollutants and affect greenhouse warming of the atmosphere. One important by-product of biomass burning is tropospheric ozone, which is a pollutant that also absorbs infrared radiation. Ozone is formed when CO, CH{sub 4}, and NMHCs react in the presence of NO{sub {times}} and sunlight. Ozone concentrations in tropical regions (where the bulk of biomass burning occurs) may increase due to biomass burning. Additionally, biomass burning can increase the concentration of nitric acid (HNO{sub 3}), a key component of acid rain.

Atherton, C.S.

1995-11-01T23:59:59.000Z

196

EIA - International Energy Outlook 2009-Energy-Related Carbon Dioxide  

Gasoline and Diesel Fuel Update (EIA)

Energy-Related Carbon Dioxide Emissions Energy-Related Carbon Dioxide Emissions International Energy Outlook 2009 Chapter 8 - Energy-Related Carbon Dioxide Emissions In 2006, non-OECD energy-related emissions of carbon dioxide exceeded OECD emissions by 14 percent. In 2030, energy-related carbon dioxide emissions from the non-OECD countries are projected to exceed those from the OECD countries by 77 percent. Figure 80. World Energy-Related Carbon Dioxide Emissions, 2006-2030 (Billion Metric Tons). Need help, contact the National Energy Information Center at 202-586-8800. Figure Data Figure 81. World Energy-Related Carbon Dioxide Emissions by Fuel Type, 1990-2030 (Billion Metric Tons). Need help, contact the National Energy Information Center at 202-586-8800. Figure Data Figure 82. U.S. Energy-Related Carbon Dioxide Emissions by Fuel in IEO2008 and IEO2009, 2006, 2015, and 2030 (billion metric tons). Need help, contact the National Energy Information Center at 202-586-8800.

197

A monitoring and diagnostic expert system for carbon dioxide capture  

Science Conference Proceedings (OSTI)

The research objective is to design and construct a knowledge-based decision support system for monitoring, control and diagnosis of the carbon dioxide capture process, which is a complicated task involving manipulation of sixteen components and their ... Keywords: Carbon dioxide capture, Diagnosis, Knowledge-based decision support system, Monitoring

Q. Zhou; C. W. Chan; P. Tontiwachiwuthikul

2009-03-01T23:59:59.000Z

198

Carbon dioxide emission during forest fires ignited by lightning  

E-Print Network (OSTI)

In this paper we developed the model for the carbon dioxide emission from forest fire. The master equation for the spreading of the carbon dioxide to atmosphere is the hyperbolic diffusion equation. In the paper we study forest fire ignited by lightning. In that case the fores fire has the well defined front which propagates with finite velocity.

Magdalena Pelc; Radoslaw Osuch

2009-03-31T23:59:59.000Z

199

Analysis of data for the carbon dioxide capture domain  

Science Conference Proceedings (OSTI)

To tackle the global concern for adverse impact of greenhouse gas (GHG) emissions, the post combustion carbon dioxide (CO"2) capture technology is commonly adopted for reducing industrial CO"2 emissions, for example, from power generation plants. The ... Keywords: Carbon dioxide capture, Data modeling, Expert validation, Neural networks, Sensitivity analysis

Yuxiang Wu; Christine W. Chan

2011-02-01T23:59:59.000Z

200

Carbon Dioxide Heat Pump Water Heater Research Project | Department of  

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

Emerging Technologies » Carbon Dioxide Heat Pump Water Heater Emerging Technologies » Carbon Dioxide Heat Pump Water Heater Research Project Carbon Dioxide Heat Pump Water Heater Research Project The U.S. Department of Energy is currently conducting research into carbon dioxide (CO2) heat pump water heaters. This project will employ innovative techniques to adapt water heating technology to meet U.S. market requirements, including specifications, cost, and performance targets. Carbon dioxide is a refrigerant with a global warming potential (GWP) of 1. The CO2 heat pump water heater research seeks to develop an improved life cycle climate performance compared to conventional refrigerants. For example, R134a, another type of refrigerant, has a GWP of 1,300. Project Description This project seeks to develop a CO2-based heat pump water heater (HPWH)

Note: This page contains sample records for the topic "methane carbon dioxide" 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

Carbon dioxide absorbent and method of using the same  

DOE Patents (OSTI)

In accordance with one aspect, the present invention provides an amino-siloxane composition comprising at least one of structures I, II, III, IV or V said compositions being useful for the capture of carbon dioxide from gas streams such as power plant flue gases. In addition, the present invention provides methods of preparing the amino-siloxane compositions are provided. Also provided are methods for reducing the amount of carbon dioxide in a process stream employing the amino-siloxane compositions of the invention as species which react with carbon dioxide to form an adduct with carbon dioxide. The reaction of the amino-siloxane compositions provided by the present invention with carbon dioxide is reversible and thus, the method provides for multicycle use of said compositions.

Perry, Robert James (Niskayuna, NY); Lewis, Larry Neil (Scotia, NY); O' Brien, Michael Joseph (Clifton Park, NY); Soloveichik, Grigorii Lev (Latham, NY); Kniajanski, Sergei (Clifton Park, NY); Lam, Tunchiao Hubert (Clifton Park, NY); Lee, Julia Lam (Niskayuna, NY); Rubinsztajn, Malgorzata Iwona (Ballston Spa, NY)

2011-10-04T23:59:59.000Z

202

Abatement of Air Pollution: Control of Carbon Dioxide Emissions/Carbon  

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

Carbon Dioxide Carbon Dioxide Emissions/Carbon Dioxide Budget Trading Program (Connecticut) Abatement of Air Pollution: Control of Carbon Dioxide Emissions/Carbon Dioxide Budget Trading Program (Connecticut) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Connecticut

203

Pages that link to "Cost and Performance of Carbon Dioxide Capture...  

Open Energy Info (EERE)

icon Pages that link to "Cost and Performance of Carbon Dioxide Capture from Power Generation" Cost and Performance of Carbon Dioxide Capture from Power Generation...

204

Solar Thermo-Chemical Splitting of Carbon Dioxide by Metal Oxide ...  

Science Conference Proceedings (OSTI)

Presentation Title, Solar Thermo-Chemical Splitting of Carbon Dioxide by Metal ... which can split carbon dioxide as well as water molecules by abstracting ...

205

Mechanistic Modeling of an Underbalanced Drilling Operation Utilizing Supercritical Carbon Dioxide.  

E-Print Network (OSTI)

??Mechanistic modeling of an underbalanced drilling operation using carbon dioxide has been developed in this research. The use of carbon dioxide in an underbalanced drilling… (more)

ALAdwani, Faisal Abdullah

2007-01-01T23:59:59.000Z

206

Coiled tubing drilling with supercritical carbon dioxide  

DOE Patents (OSTI)

A method for increasing the efficiency of drilling operations by using a drilling fluid material that exists as supercritical fluid or a dense gas at temperature and pressure conditions existing at a drill site. The material can be used to reduce mechanical drilling forces, to remove cuttings, or to jet erode a substrate. In one embodiment, carbon dioxide (CO.sub.2) is used as the material for drilling within wells in the earth, where the normal temperature and pressure conditions cause CO.sub.2 to exist as a supercritical fluid. Supercritical carbon dioxide (SC--CO.sub.2) is preferably used with coiled tube (CT) drilling equipment. The very low viscosity SC--CO.sub.2 provides efficient cooling of the drill head, and efficient cuttings removal. Further, the diffusivity of SC--CO.sub.2 within the pores of petroleum formations is significantly higher than that of water, making jet erosion using SC--CO.sub.2 much more effective than water jet erosion. SC--CO.sub.2 jets can be used to assist mechanical drilling, for erosion drilling, or for scale removal. A choke manifold at the well head or mud cap drilling equipment can be used to control the pressure within the borehole, to ensure that the temperature and pressure conditions necessary for CO.sub.2 to exist as either a supercritical fluid or a dense gas occur at the drill site. Spent CO.sub.2 can be vented to the atmosphere, collected for reuse, or directed into the formation to aid in the recovery of petroleum.

Kolle , Jack J. (Seattle, WA)

2002-01-01T23:59:59.000Z

207

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

208

Estimated Carbon Dioxide Emissions in 2008: United States  

Science Conference Proceedings (OSTI)

Flow charts depicting carbon dioxide emissions in the United States have been constructed from publicly available data and estimates of state-level energy use patterns. Approximately 5,800 million metric tons of carbon dioxide were emitted throughout the United States for use in power production, residential, commercial, industrial, and transportation applications in 2008. Carbon dioxide is emitted from the use of three major energy resources: natural gas, coal, and petroleum. The flow patterns are represented in a compact 'visual atlas' of 52 state-level (all 50 states, the District of Columbia, and one national) carbon dioxide flow charts representing a comprehensive systems view of national CO{sub 2} emissions. Lawrence Livermore National Lab (LLNL) has published flow charts (also referred to as 'Sankey Diagrams') of important national commodities since the early 1970s. The most widely recognized of these charts is the U.S. energy flow chart (http://flowcharts.llnl.gov). LLNL has also published charts depicting carbon (or carbon dioxide potential) flow and water flow at the national level as well as energy, carbon, and water flows at the international, state, municipal, and organizational (i.e. United States Air Force) level. Flow charts are valuable as single-page references that contain quantitative data about resource, commodity, and byproduct flows in a graphical form that also convey structural information about the system that manages those flows. Data on carbon dioxide emissions from the energy sector are reported on a national level. Because carbon dioxide emissions are not reported for individual states, the carbon dioxide emissions are estimated using published energy use information. Data on energy use is compiled by the U.S. Department of Energy's Energy Information Administration (U.S. EIA) in the State Energy Data System (SEDS). SEDS is updated annually and reports data from 2 years prior to the year of the update. SEDS contains data on primary resource consumption, electricity generation, and energy consumption within each economic sector. Flow charts of state-level energy usage and explanations of the calculations and assumptions utilized can be found at: http://flowcharts.llnl.gov. This information is translated into carbon dioxide emissions using ratios of carbon dioxide emissions to energy use calculated from national carbon dioxide emissions and national energy use quantities for each particular sector. These statistics are reported annually in the U.S. EIA's Annual Energy Review. Data for 2008 (US. EIA, 2010) was updated in August of 2010. This is the first presentation of a comprehensive state-level package of flow charts depicting carbon dioxide emissions for the United States.

Smith, C A; Simon, A J; Belles, R D

2011-04-01T23:59:59.000Z

209

Carbon Dioxide Sequestration in Concrete Using Vacuum-Carbonation Alain Azar, Prof. Yixin Shao  

E-Print Network (OSTI)

Carbon Dioxide Sequestration in Concrete Using Vacuum-Carbonation Alain Azar, Prof. Yixin Shao increase in Carbon dioxide (CO2) emissions over the past five decades, specific ways to reduce. Early age carbonation curing of concrete is an effective measure to sequester recovered CO2 in lime

Barthelat, Francois

210

Methanation of gas streams containing carbon monoxide and hydrogen  

DOE Patents (OSTI)

Carbon monoxide-containing gas streams having a relatively high concentration of hydrogen are pretreated so as to remove the hydrogen in a recoverable form for use in the second step of a cyclic, essentially two-step process for the production of methane. The thus-treated streams are then passed over a catalyst to deposit a surface layer of active surface carbon thereon essentially without the formation of inactive coke. This active carbon is reacted with said hydrogen removed from the feed gas stream to form methane. The utilization of the CO in the feed gas stream is appreciably increased, enhancing the overall process for the production of relatively pure, low-cost methane from CO-containing waste gas streams.

Frost, Albert C. (Congers, NY)

1983-01-01T23:59:59.000Z

211

Investigation of the carbon dioxide sorption capacity and structural deformation of coal  

Science Conference Proceedings (OSTI)

Due to increasing atmospheric CO2 concentrations causing the global energy and environmental crises, geological sequestration of carbon dioxide is now being actively considered as an attractive option to mitigate greenhouse gas emissions. One of the important strategies is to use deep unminable coal seams, for those generally contain significant quantities of coal bed methane that can be recovered by CO2 injection through enhanced coal bed natural gas production, as a method to safely store CO2. It has been well known that the adsorbing CO2 molecules introduce structural deformation, such as distortion, shrinkage, or swelling, of the adsorbent of coal organic matrix. The accurate investigations of CO2 sorption capacity as well as of adsorption behavior need to be performed under the conditions that coals deform. The U.S. Department of Energy-National Energy Technology Laboratory and Regional University Alliance are conducting carbon dioxide sorption isotherm experiments by using manometric analysis method for estimation of CO2 sorption capacity of various coal samples and are constructing a gravimetric apparatus which has a visual window cell. The gravimetric apparatus improves the accuracy of carbon dioxide sorption capacity and provides feasibility for the observation of structural deformation of coal sample while carbon dioxide molecules interact with coal organic matrix. The CO2 sorption isotherm measurements have been conducted for moist and dried samples of the Central Appalachian Basin (Russell County, VA) coal seam, received from the SECARB partnership, at the temperature of 55 C.

Hur, Tae-Bong; Fazio, James; Romanov, Vyacheslav; Harbert, William

2010-01-01T23:59:59.000Z

212

Annual Energy Outlook 2006 with Projections to 2030 - Carbon Dioxide  

Gasoline and Diesel Fuel Update (EIA)

Carbon Dioxide Emissions Carbon Dioxide Emissions Annual Energy Outlook 2006 with Projections to 2030 Higher Energy Consumption Forecast Increases Carbon Dioxide Emissions Figure 107. Carbn dioxide emissions by sector and fuel, 2004 and 2030 (million metric tons). Having problems, call our National Energy Information Center at 202-586-8800 for help. Figure data CO2 emissions from the combustion of fossil fuels are proportional to fuel consumption. Among fossil fuel types, coal has the highest carbon content, natural gas the lowest, and petroleum in between. In the AEO2006 reference case, the shares of these fuels change slightly from 2004 to 2030, with more coal and less petroleum and natural gas. The combined share of carbon-neutral renewable and nuclear energy is stable from 2004 to 2030 at

213

Recycling Carbon Dioxide to Make Plastics | Department of Energy  

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

Recycling Carbon Dioxide to Make Plastics Recycling Carbon Dioxide to Make Plastics Recycling Carbon Dioxide to Make Plastics May 20, 2013 - 1:31pm Addthis Novomer’s thermoplastic pellets incorporate waste CO2 into a variety of consumer products. Novomer's thermoplastic pellets incorporate waste CO2 into a variety of consumer products. Why is this important? By using CO2 that would otherwise be emitted to the atmosphere, the process has the potential to cut greenhouse gas emissions while simultaneously reducing petroleum consumption and producing useful products for American consumers. The world's first successful large-scale production of a polypropylene carbonate (PPC) polymer using waste carbon dioxide (CO2) as a key raw material has resulted from a projected funded in part by the U.S. Department of Energy's Office of Fossil Energy.

214

Carbon Dioxide Capture and Storage Demonstration in Developing Countries:  

Open Energy Info (EERE)

Carbon Dioxide Capture and Storage Demonstration in Developing Countries: Carbon Dioxide Capture and Storage Demonstration in Developing Countries: Analysis of Key Policy Issues and Barriers Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Carbon Dioxide Capture and Storage Demonstration in Developing Countries: Analysis of Key Policy Issues and Barriers Focus Area: Clean Fossil Energy Topics: Potentials & Scenarios Website: cdn.globalccsinstitute.com/sites/default/files/publications/15536/carb Equivalent URI: cleanenergysolutions.org/content/carbon-dioxide-capture-and-storage-de Policies: "Deployment Programs,Financial Incentives" is not in the list of possible values (Deployment Programs, Financial Incentives, Regulations) for this property. DeploymentPrograms: Technical Assistance This report discusses the value of carbon capture and storage (CCS)

215

Zinc-catalyzed copolymerization of carbon dioxide and propylene oxide  

E-Print Network (OSTI)

The zinc-catalyzed copolymerization of carbon dioxide and propylene oxide, which is one of the promising reactions for the utilization of carbon dioxide, has been investigated from various aspects. Above all, considering that supercritical carbon dioxide has recently been paid attention in the field of extraction, separation, and reaction medium, its aptitude for both a reaction solvent and a reactant was examined in zinc glutarate-catalyzed reactions. As a result, it was proved that supercritical carbon dioxide was a suitable substitute for organic solvents in the copolymerization reactions. Great diffusivity of supercritical carbon dioxide into polymer segments was thought to promote carbon dioxide supply to the active sites of the zinc species and to afford alternating polycarbonate production. Low reaction temperature appeared to be advantageous to polycarbonate and cyclic carbonate formation. Apart from zinc glutarate catalyst whose detailed mechanistic studies were hard to perform due to its insolubility, some other zinc compounds were studied. A homogeneous catalyst, bis(ethyl fumarato)zinc, showed similar polycarbonate yield to zinc glutarate, and the method of the catalyst preparation affected its catalytic activity. Only a small amount of the catalyst was considered to be active in the copolymerization process even in the homogeneous systems. In the zinc dicarboxylate complexes, the carbon number between two carboxyl groups and the steric nature in the vicinity of the zinc atom might be important factors for the copolymerization catalysis.

Katsurao, Takumi

1994-01-01T23:59:59.000Z

216

Carbon ion pump for removal of carbon dioxide from combustion gas and other gas mixtures  

DOE Patents (OSTI)

A novel method and system of separating carbon dioxide from flue gas is introduced. Instead of relying on large temperature or pressure changes to remove carbon dioxide from a solvent used to absorb it from flue gas, the ion pump method, as disclosed herein, dramatically increases the concentration of dissolved carbonate ion in solution. This increases the overlying vapor pressure of carbon dioxide gas, permitting carbon dioxide to be removed from the downstream side of the ion pump as a pure gas. The ion pumping may be obtained from reverse osmosis, electrodialysis, thermal desalination methods, or an ion pump system having an oscillating flow in synchronization with an induced electric field.

Aines, Roger D. (Livermore, CA); Bourcier, William L. (Livermore, CA)

2010-11-09T23:59:59.000Z

217

Atmospheric Trace Gases, Carbon Isotopes, Radionuclides, and Aerosols: Atmospheric Carbon Dioxide Data from the Carbon Dioxide Information Analysis Center (CDIAC)  

DOE Data Explorer (OSTI)

CDIAC products include numeric data packages, publications, trend data, atlases, models, etc. and can be searched for by subject area, keywords, authors, product numbers, time periods, collection sites, spatial references, etc. Some of the collections may also be included in the CDIAC publication titled Trends Online: A Compendium of Global Change Data. Most datasets, many with numerous data files, are free to download from CDIAC's ftp area. Information related to atmospheric carbon dioxide data includes: Atmospheric Carbon Dioxide and Carbon Isotopes • Atmospheric carbon dioxide records from Mauna Loa, Hawaii • Monthly atmospheric CO2 mixing ratios and other data from the NOAA/CMDL continuous monitoring network • Data from the CSIRO GASLAB Flask Sampling Network • Atmospheric CO2 records from continuous measurements at Jubany Station, Antarctica and from 10 sites in the SIO air sampling network • Historical data from the extended Vostok ice core (2003) and the Siple Station ice core (1997) • Historical records from the Law Dome DE08, DE08-2, and DSS ice cores (1998) • AmeriFlux Carbon Dioxide, Water Vapor, and Energy Balance Measurements • Data from the Canadian Background Air Pollution Monitoring Network • Flask Samples from at U.S.S.R.-Operated Sites (1991) • The CISIRO (Australia) Monitoring Program from Aircraft for 1972-1981 • CO2 Concentrations in Surface Water and the Atmosphere during 1986-1989 NOAA/PMEL Cruises in the Pacific and Indian Oceans • Surface Water and Atmospheric CO2 and Nitrous Oxide Observations by Shipboard Automated Gas Chromatography: Results from Expeditions Between 1977 and 1990 (1992) • IPCC Working Group 1, 1994: Modeling Results Relating Future Atmospheric CO2 Concentrations to Industrial Emissions (1995). New datasets are added when available to the category of atmospheric carbon dioxide.

218

Short-Term Energy Outlook Model Documentation: Carbon Dioxide (CO2) Emissions Model  

Reports and Publications (EIA)

Description of the procedures for estimating carbon dioxide emissions in the Short-Term Energy Outlook

Information Center

2009-08-11T23:59:59.000Z

219

Innovative Geothermal Startup Will Put Carbon Dioxide To Good Use |  

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

Geothermal Startup Will Put Carbon Dioxide To Good Use Geothermal Startup Will Put Carbon Dioxide To Good Use Innovative Geothermal Startup Will Put Carbon Dioxide To Good Use March 17, 2011 - 2:09pm Addthis A basic overview of GreenFire's process to convert CO2 into electricity. | Photo courtesy of GreenFire. A basic overview of GreenFire's process to convert CO2 into electricity. | Photo courtesy of GreenFire. JoAnn Milliken What does this project do? GreenFire Energy will conduct the first field demonstration of a CO2-based geothermal system. Getting geothermal power with CO2 instead of water would be particularly beneficial in the arid Southwestern U.S., where water is scarce. Geothermal power holds enormous opportunities to provide affordable, clean energy that avoids greenhouse gases like carbon dioxide (CO2). That's

220

Carbon Dioxide Emissions Associated with Bioenergy and Other Biogenic  

Open Energy Info (EERE)

Carbon Dioxide Emissions Associated with Bioenergy and Other Biogenic Carbon Dioxide Emissions Associated with Bioenergy and Other Biogenic Sources Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Carbon Dioxide Emissions Associated with Bioenergy and Other Biogenic Sources Agency/Company /Organization: United States Environmental Protection Agency Sector: Energy, Climate Focus Area: Biomass, - Biomass Combustion, - Biomass Gasification, - Biomass Pyrolysis, - Biofuels, - Landfill Gas, - Waste to Energy, Greenhouse Gas Phase: Evaluate Options Resource Type: Publications, Guide/manual User Interface: Website Website: www.epa.gov/climatechange/emissions/biogenic_emissions.html Cost: Free References: EPA, 40 CFR Part 60[1] Tailoring Rule[2] Biogenic Emissions[3] The 'EPA Climate Change - Green House Gas Emissions - Carbon Dioxide

Note: This page contains sample records for the topic "methane carbon dioxide" 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.


221

DOE Seeks Applications for Tracking Carbon Dioxide Storage in Geologic  

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

Applications for Tracking Carbon Dioxide Storage in Applications for Tracking Carbon Dioxide Storage in Geologic Formations DOE Seeks Applications for Tracking Carbon Dioxide Storage in Geologic Formations February 19, 2009 - 12:00pm Addthis Washington, DC -- The U.S. Department of Energy (DOE) today issued a Funding Opportunity Announcement (FOA) to enhance the capability to simulate, track, and evaluate the potential risks of carbon dioxide (CO2) storage in geologic formations. Geologic storage is considered to be a key technological solution to mitigate CO2 emissions and combat climate change. DOE anticipates making multiple project awards under this FOA and, depending on fiscal year 2009 appropriations, may be able to provide up to $24 million to be distributed among selected recipients. This investment is

222

Control strategies for supercritical carbon dioxide power conversion systems  

E-Print Network (OSTI)

The supercritical carbon dioxide (S-C02) recompression cycle is a promising advanced power conversion cycle which couples well to numerous advanced nuclear reactor designs. This thesis investigates the dynamic simulation ...

Carstens, Nathan, 1978-

2007-01-01T23:59:59.000Z

223

NETL: News Release - DOE Study Monitors Carbon Dioxide Storage...  

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

1, 2009 DOE Study Monitors Carbon Dioxide Storage in Norway's Offshore Sleipner Gas Field U.S. World-Acclaimed Marine Institutes Partner with Europeans in North Sea Washington,...

224

Table 21. Total Energy Related Carbon Dioxide Emissions, Projected...  

U.S. Energy Information Administration (EIA) Indexed Site

Total Energy Related Carbon Dioxide Emissions, Projected vs. Actual Projected (million metric tons) 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008...

225

Figure 5. Energy-related carbon dioxide emissions in four ...  

U.S. Energy Information Administration (EIA)

Sheet3 Sheet2 Sheet1 Reference High Oil/Gas Resouce CO2$15 CO2$15HR Released: May 2, 2013 Figure 5. Energy-related carbon dioxide emissions in four ...

226

Ownership of Carbon Dioxide Captured by Clean Coal Project (Texas)  

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

This legislation stipulates that the Railroad Commission of Texas automatically acquires the title to any carbon dioxide captured by a clean coal project in the state. The Bureau of Economic...

227

Cardiac Responses to Carbon Dioxide in Developing Zebrafish (Danio rerio) .  

E-Print Network (OSTI)

??The ontogeny of carbon dioxide (CO2) sensing in zebrafish (Danio rerio) has not been studied. In this thesis, CO2-mediated increases in heart rate were used… (more)

Miller, Scott

2013-01-01T23:59:59.000Z

228

World energy consumption and carbon dioxide emissions : 1950-2050  

E-Print Network (OSTI)

Emissions of carbon dioxide form combustion of fossil fuels, which may contribute to long-term climate change, are projected through 2050 using reduced form models estimated with national-level panel data for the period ...

Schmalensee, Richard

1995-01-01T23:59:59.000Z

229

World energy consumption and carbon dioxide emissions : 1950-2050  

E-Print Network (OSTI)

Emissions of carbon dioxide from combustion of fossil fuels, which may contribute to long-term climate change, are projected through 2050 using reduced form models estimated with national-level panel data for the period ...

Schmalensee, Richard.; Stoker, Thomas M.; Judson, Ruth A.

230

Energy-related carbon dioxide emissions down in 2011 - Today ...  

U.S. Energy Information Administration (EIA)

Annual energy-related carbon dioxide (CO 2) emissions fell 2.4% in 2011 compared to the level in 2010. Several factors combined to produce this drop, including slower ...

231

Synthesis of Amides and Lactams in Supercritical Carbon Dioxide  

E-Print Network (OSTI)

Supercritical carbon dioxide can be employed as an environmentally friendly alternative to conventional organic solvents for the synthesis of a variety of carboxylic amides. The addition of amines to ketenes generated in ...

Mak, Xiao Yin

232

Short-Term Energy Carbon Dioxide Emissions Forecasts August 2009  

Reports and Publications (EIA)

Supplement to the Short-Term Energy Outlook. Short-term projections for U.S. carbon dioxide emissions of the three fossil fuels: coal, natural gas, and petroleum.

Information Center

2009-08-11T23:59:59.000Z

233

U.S. Energy-Related Carbon Dioxide Emissions, 2012  

U.S. Energy Information Administration (EIA) Indexed Site

Energy-Related Carbon Dioxide Emissions, 2012 October 2013 Independent Statistics & Analysis www.eia.gov U.S. Department of Energy Washington, DC 20585 October 2013 U.S. Energy...

234

Carbon Dioxide-Based Heat Pump Water Heater Research Project  

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

The U.S. Department of Energy is currently conducting research into carbon dioxide (CO2) heat pump water heaters. This project will employ innovative techniques to adapt water heating technology to...

235

Energy-related carbon dioxide emissions declined in 2012 ...  

U.S. Energy Information Administration (EIA)

Energy-related carbon dioxide (CO 2) emissions in 2012 were the lowest in the United States since 1994, at 5.3 billion metric tons of CO 2 (see figure above).

236

Thermophysical Properties of Carbon Dioxide and CO2-Rich Mixtures...  

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

carbon dioxide (CO 2 ) emissions; and will help maintain the nation's leader- ship in the export of gas turbine equipment. In this NETL-managed project, the National Institute of...

237

DEVELOPMENT AND INTEGRATION OF NEW PROCESSES CONSUMING CARBON DIOXIDE IN  

E-Print Network (OSTI)

. Estimation of Greenhouse Gas Emissions....................................... 6 2. Greenhouse Gas Emissions........................................................ 8 C. Carbon Dioxide ­ A Greenhouse Gas................................................ 9 1. Sources............................................................... 3 B. Greenhouse Effect and Climate Change............................................. 4 1

Pike, Ralph W.

238

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...

239

New and Underutilized Technology: Carbon Dioxide Demand Ventilation Control  

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

Carbon Dioxide Demand Ventilation Carbon Dioxide Demand Ventilation Control New and Underutilized Technology: Carbon Dioxide Demand Ventilation Control October 4, 2013 - 4:23pm Addthis The following information outlines key deployment considerations for carbon dioxide (CO2) demand ventilation control within the Federal sector. Benefits Demand ventilation control systems modulate ventilation levels based on current building occupancy, saving energy while still maintaining proper indoor air quality (IAQ). CO2 sensors are commonly used, but a multiple-parameter approach using total volatile organic compounds (TVOC), particulate matter (PM), formaldehyde, and relative humidity (RH) levels can also be used. CO2 sensors control the outside air damper to reduce the amount of outside air that needs to be conditioned and supplied to the building when

240

Slurried solid media for simultaneous water purification and carbon dioxide removal from gas mixtures  

Science Conference Proceedings (OSTI)

A slurried solid media for simultaneous water purification and carbon dioxide removal from gas mixtures includes the steps of dissolving the gas mixture and carbon dioxide in water providing a gas, carbon dioxide, water mixture; adding a porous solid media to the gas, carbon dioxide, water mixture forming a slurry of gas, carbon dioxide, water, and porous solid media; heating the slurry of gas, carbon dioxide, water, and porous solid media producing steam; and cooling the steam to produce purified water and carbon dioxide.

Aines, Roger D.; Bourcier, William L.; Viani, Brian

2013-01-29T23:59:59.000Z

Note: This page contains sample records for the topic "methane carbon dioxide" 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

Catalytic Transformation of Waste Carbon Dioxide into Valuable Products  

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

Catalytic Transformation of Waste Catalytic Transformation of Waste Carbon Dioxide into Valuable Products Background Many industrial processes contribute large amounts of carbon dioxide (CO 2 ) to the earth's atmosphere. In an effort to reduce the amount of CO 2 released to the atmosphere, the U.S. Department of Energy (DOE) is funding efforts to develop CO 2 capture and storage technologies. In addition to permanent storage of CO 2 in underground reservoirs, some

242

DOE/NETL CarbON DiOxiDE  

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

CarbON DiOxiDE CapTurE aND STOragE rD&D rOaDmap DECEmbEr 2010 ii u.S. DEparTmENT Of ENErgy CarbON DiOxiDE CapTurE aND STOragE rD&D rOaDmap Disclaimer This report was prepared as an...

243

Carbon dioxide sequestration: When and how much  

E-Print Network (OSTI)

We analyze carbon dioxide (CO sequestration as a strategy to manage future climate change in an optimal economic growth framework. We approach the problem in two ways: first, by using a simple analytical model, and second, by using a numerical optimization model which allows us to explore the problem in a more realistic setting. CO sequestration is not a perfect substitute for avoiding CO2 production because CO2 leaks back to the atmosphere and hence imposes future costs. The “efficiency factor ” of CO2 sequestration can be expressed as the ratio of the avoided emissions to the economically equivalent amount of sequestered CO2 emissions. A simple analytical model in terms of a net-present value criterion suggests that short-term sequestration methods such as afforestation can be somewhat ( 60 %) efficient, while long term sequestration (such as deep aquifer or deep ocean sequestration) can be very ( 90%) efficient. A numerical study indicates that CO2 sequestration methods at a cost within the range of present estimates reduce the economically optimal CO2 concentrations and climate related damages. The potential savings associated with CO2 sequestration is equivalent in our utilitarian model to a one-time investment of several percent of present gross world product. 1 1

Klaus Keller; Zili Yang; Matt Hall; David F. Bradford

2003-01-01T23:59:59.000Z

244

Terpolymerization of ethylene, sulfur dioxide and carbon monoxide  

DOE Patents (OSTI)

This invention relates to a high molecular weight terpolymer of ethylene, sulfur dioxide and carbon monoxide stable to 280.degree. C. and containing as little as 36 mol % ethylene and about 41-51 mol % sulfur dioxide; and to the method of producing said terpolymer by irradiation of a liquid and gaseous mixture of ethylene, sulfur dioxide and carbon monoxide by means of Co-60 gamma rays or an electron beam, at a temperature of about 10.degree.-50.degree. C., and at a pressure of about 140 to 680 atmospheres, to initiate polymerization.

Johnson, Richard (Shirley, NY); Steinberg, Meyer (Huntington Station, NY)

1981-01-01T23:59:59.000Z

245

Carbon Dioxide Separation with Novel Microporous Metal Organic Frameworks  

SciTech Connect

The goal of this program was to develop a low cost novel sorbent to remove carbon dioxide from flue gas and gasification streams in electric utilities. Porous materials named metal-organic frameworks (MOFs) were found to have good capacity and selectivity for the capture of carbon dioxide. Several materials from the initial set of reference MOFs showed extremely high CO{sub 2} adsorption capacities and very desirable linear isotherm shapes. Sample preparation occurred at a high level, with a new family of materials suitable for intellectual property protection prepared and characterized. Raman spectroscopy was shown to be useful for the facile characterization of MOF materials during adsorption and especially, desorption. Further, the development of a Raman spectroscopic-based method of determining binary adsorption isotherms was initiated. It was discovered that a stronger base functionality will need to be added to MOF linkers in order to enhance CO{sub 2} selectivity over other gases via a chemisorption mechanism. A concentrated effort was expended on being able to accurately predict CO{sub 2} selectivities and on the calculation of predicted MOF surface area values from first principles. A method of modeling hydrolysis on MOF materials that correlates with experimental data was developed and refined. Complimentary experimental data were recorded via utilization of a combinatorial chemistry heat treatment unit and high-throughput X-ray diffractometer. The three main Deliverables for the project, namely (a) a MOF for pre-combustion (e.g., IGCC) CO{sub 2} capture, (b) a MOF for post-combustion (flue gas) CO{sub 2} capture, and (c) an assessment of commercial potential for a MOF in the IGCC application, were completed. The key properties for MOFs to work in this application - high CO{sub 2} capacity, good adsorption/desorption rates, high adsorption selectivity for CO{sub 2} over other gases such as methane and nitrogen, high stability to contaminants, namely moisture, and easy regenerability, were all addressed during this program. As predicted at the start of the program, MOFs have high potential for CO{sub 2} capture in the IGCC and flue gas applications.

Richard Willis; Annabelle Benin; John Low; Ganesh Venimadhavan; Syed Faheem; David Lesch; Adam Matzger; Randy Snurr

2008-02-04T23:59:59.000Z

246

Carbon Dioxide-Water Emulsions for Enhanced Oil Recovery and Permanent Sequestration of Carbon Dioxide  

Science Conference Proceedings (OSTI)

This project involves the use of an innovative new invention ? Particle Stabilized Emulsions (PSEs) of Carbon Dioxide-in-Water and Water-in-Carbon Dioxide for Enhanced Oil Recovery (EOR) and Permanent Sequestration of Carbon Dioxide. The EOR emulsion would be injected into a semi-depleted oil reservoir such as Dover 33 in Otsego County, Michigan. It is expected that the emulsion would dislocate the stranded heavy crude oil from the rock granule surfaces, reduce its viscosity, and increase its mobility. The advancing emulsion front should provide viscosity control which drives the reduced-viscosity oil toward the production wells. The make-up of the emulsion would be subsequently changed so it interacts with the surrounding rock minerals in order to enhance mineralization, thereby providing permanent sequestration of the injected CO{sub 2}. In Phase 1 of the project, the following tasks were accomplished: 1. Perform laboratory scale (mL/min) refinements on existing procedures for producing liquid carbon dioxide-in-water (C/W) and water-in-liquid carbon dioxide (W/C) emulsion stabilized by hydrophilic and hydrophobic fine particles, respectively, using a Kenics-type static mixer. 2. Design and cost evaluate scaled up (gal/min) C/W and W/C emulsification systems to be deployed in Phase 2 at the Otsego County semi-depleted oil field. 3. Design the modifications necessary to the present CO{sub 2} flooding system at Otsego County for emulsion injection. 4. Design monitoring and verification systems to be deployed in Phase 2 for measuring potential leakage of CO{sub 2} after emulsion injection. 5. Design production protocol to assess enhanced oil recovery with emulsion injection compared to present recovery with neat CO{sub 2} flooding. 6. Obtain Federal and State permits for emulsion injection. Initial research focused on creating particle stabilized emulsions with the smallest possible globule size so that the emulsion can penetrate even low-permeability crude oilcontaining formations or saline aquifers. The term ?globule? refers to the water or liquid carbon dioxide droplets sheathed with ultrafine particles dispersed in the continuous external medium, liquid CO{sub 2} or H{sub 2}O, respectively. The key to obtaining very small globules is the shear force acting on the two intermixing fluids, and the use of ultrafine stabilizing particles or nanoparticles. We found that using Kenics-type static mixers with a shear rate in the range of 2700 to 9800 s{sup -1} and nanoparticles between 100-300 nm produced globule sizes in the 10 to 20 ?m range. Particle stabilized emulsions with that kind of globule size should easily penetrate oil-bearing formations or saline aquifers where the pore and throat size can be on the order of 50 ?m or larger. Subsequent research focused on creating particle stabilized emulsions that are deemed particularly suitable for Permanent Sequestration of Carbon Dioxide. Based on a survey of the literature an emulsion consisting of 70% by volume of water, 30% by volume of liquid or supercritical carbon dioxide, and 2% by weight of finely pulverized limestone (CaCO{sub 3}) was selected as the most promising agent for permanent sequestration of CO{sub 2}. In order to assure penetration of the emulsion into tight formations of sandstone or other silicate rocks and carbonate or dolomite rock, it is necessary to use an emulsion consisting of the smallest possible globule size. In previous reports we described a high shear static mixer that can create such small globules. In addition to the high shear mixer, it is also necessary that the emulsion stabilizing particles be in the submicron size, preferably in the range of 0.1 to 0.2 ?m (100 to 200 nm) size. We found a commercial source of such pulverized limestone particles, in addition we purchased under this DOE Project a particle grinding apparatus that can provide particles in the desired size range. Additional work focused on attempts to generate particle stabilized emulsions with a flow through, static mixer based apparatus under a variety

Ryan, David; Golomb, Dan; Shi, Guang; Shih, Cherry; Lewczuk, Rob; Miksch, Joshua; Manmode, Rahul; Mulagapati, Srihariraju; Malepati, Chetankurmar

2011-09-30T23:59:59.000Z

247

NETL: News Release - DOE Report Assesses Potential for Carbon Dioxide  

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

4, 2009 4, 2009 DOE Report Assesses Potential for Carbon Dioxide Storage Beneath Federal Lands Newly Released Document Complements 2008 Carbon Sequestration Atlas Washington, D.C. - As a complementary document to the U.S. Department of Energy's Carbon Sequestration Atlas of the United States and Canada issued in November 2008, the Office of Fossil Energy's National Energy Technology Laboratory has now released a report that provides an initial estimate of the potential to store carbon dioxide (CO2) underneath millions of acres of Federal lands. MORE INFO Read the report The report, Storage of Captured Carbon Dioxide Beneath Federal Lands, estimates and characterizes the storage potential that lies beneath some of the more than 400 million acres of Federal land available for lease.

248

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

249

Carbon Dioxide Information Analysis Center (CDIAC)  

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

Key resources related to carbon cycle and climate change research Recent Greenhouse Gas Concentrations Latest Global Carbon Budget Estimates Illustration of the Global Carbon...

250

Thermodynamic investigation into steam-methane reforming and the synthesis of methane from carbon monoxide and hydrogen  

SciTech Connect

In this study the stream-methane equilibrium reaction was investigated by considering both methane synthesis from hydrogen and carbon monoxide and by considering steam-methane reforming from methane and steam. A FORTRAN computer program was written to carry out all the calculations over a wide range of temperatures, pressures, and initial compositions. The products of each process as a function of pressure, temperature, and starting ratio of reactant gases were calculated, as well as the heats involved. In both processes the minimum ratios above which no carbon precipitates were determined as a function of temperature and pressure were given.

Wu, L.H.; Lietzke, M.H.

1976-11-01T23:59:59.000Z

251

Modeling Coal Matrix Shrinkage and Differential Swelling with CO2 Injection for Enhanced Coalbed Methane Recovery and Carbon Sequestration Applications  

SciTech Connect

Matrix shrinkage and swelling can cause profound changes in porosity and permeability of coalbed methane reservoirs during depletion or when under CO{sub 2} injection processes, with significant implication for primary or enhanced methane recovery. Two models that are used to describe these effects are discussed. The first was developed by Advanced Resources International (ARI) and published in 1990 by Sawyer, et al. The second model was published by Palmer and Mansoori in 1996. This paper shows that the two provide equivalent results for most applications. However, their differences in formulation cause each to have relative advantages and disadvantages under certain circumstances. Specifically, the former appears superior for undersaturated coalbed methane reservoirs while the latter would be better if a case is found where matrix swelling is strongly disproportional to gas concentration. Since its presentation in 1996, the Palmer and Mansoori model has justifiably received much critical praise. However, the model developed by ARI for the COMET reservoir simulation program has been in use since 1990, and has significant advantages in certain settings. A review of data published by Levine in 1996 reveals that carbon dioxide causes a greater degree of coal matrix swelling compared to methane, even when measured on a unit of concentration basis. This effect is described in this report as differential swelling. Differential swelling may have important consequences for enhanced coalbed methane and carbon sequestration projects. To handle the effects of differential swelling, an extension to the matrix shrinkage and swelling model used by the COMET simulator is presented and shown to replicate the data of Levine. Preliminary field results from a carbon dioxide injection project are also presented in support of the extended model. The field evidence supports that considerable changes to coal permeability occur with CO{sub 2} injection, with significant implication for the design, implementation and performance of enhanced coalbed methane recovery and CO{sub 2} sequestration projects.

L. J. Pekot; S. R. Reeves

2002-03-31T23:59:59.000Z

252

Ionic Liquid Membranes for Carbon Dioxide Separation  

SciTech Connect

Recent scientific studies are rapidly advancing novel technological improvements and engineering developments that demonstrate the ability to minimize, eliminate, or facilitate the removal of various contaminants and green house gas emissions in power generation. The Integrated Gasification Combined Cycle (IGCC) shows promise for carbon dioxide mitigation not only because of its higher efficiency as compared to conventional coal firing plants, but also due to a higher driving force in the form of high partial pressure. One of the novel technological concepts currently being developed and investigated is membranes for carbon dioxide (CO2) separation, due to simplicity and ease of scaling. A challenge in using membranes for CO2 capture in IGCC is the possibility of failure at elevated temperatures or pressures. Our earlier research studies examined the use of ionic liquids on various supports for CO2 separation over the temperature range, 37°C-300°C. The ionic liquid, 1-hexyl-3methylimidazolium Bis(trifluoromethylsulfonyl)imide, ([hmim][Tf2N]), was chosen for our initial studies with the following supports: polysulfone (PSF), poly(ether sulfone) (PES), and cross-linked nylon. The PSF and PES supports had similar performance at room temperature, but increasing temperature caused the supported membranes to fail. The ionic liquid with the PES support greatly affected the glass transition temperature, while with the PSF, the glass transition temperature was only slightly depressed. The cross-linked nylon support maintained performance without degradation over the temperature range 37-300°C with respect to its permeability and selectivity. However, while the cross-linked nylon support was able to withstand temperatures, the permeability continued to increase and the selectivity decreased with increasing temperature. Our studies indicated that further testing should examine the use of other ionic liquids, including those that form chemical complexes with CO2 based on amine interactions. The hypothesis is that the performance at the elevated temperatures could be improved by allowing a facilitated transport mechanism to become dominant. Several amine-based ionic liquids were tested on the cross-linked nylon support. It was found that using the amine-based ionic liquid did improve selectivity and permeability at higher temperature. The hypothesis was confirmed, and it was determined that the type of amine used also played a role in facilitated transport. Given the appropriate aminated ionic liquid with the cross-linked nylon support, it is possible to have a membrane capable of separating CO2 at IGCC conditions. With this being the case, the research has expanded to include separation of other constituents besides CO2 (CO, H2S, etc.) and if they play a role in membrane poisoning or degradation. This communication will discuss the operation of the recently fabricated ionic liquid membranes and the impact of gaseous components other than CO2 on their performance and stability.

Myers, C.R.; Ilconich, J.B.; Luebke, D.R.; Pennline, H.W.

2008-07-12T23:59:59.000Z

253

Carbon-dioxide-controlled ventilation study  

Science Conference Proceedings (OSTI)

The In-House Energy Management (IHEM) Program has been established by the U.S. Department of Energy to provide funds to federal laboratories to conduct research on energy-efficient technology. The Energy Sciences Department of Pacific Northwest Laboratory (PNL) was tasked by IHEM to research the energy savings potential associated with reducing outdoor-air ventilation of buildings. By monitoring carbon dioxide (CO{sub 2}) levels in a building, outdoor air provided by the heating, ventilating, and air-conditioning (HVAC) system can be reduced to the percentage required to maintain satisfactory CO{sub 2} levels rather than ventilating with a higher outdoor-air percentage based on an arbitrary minimum outdoor-air setting. During summer months, warm outdoor air brought into a building for ventilation must be cooled to meet the appropriate cooling supply-air temperature, and during winter months, cold outdoor air must be heated. By minimizing the amount of hot or cold outdoor air brought into the HVAC system, the supply air requires less cooling or heating, saving energy and money. Additionally, the CO{sub 2} levels in a building can be monitored to ensure that adequate outdoor air is supplied to a building to maintain air quality levels. The two main considerations prior to implementing CO{sub 2}-based ventilation control are its impact on energy consumption and the adequacy of indoor air quality (IAQ) and occupant comfort. To address these considerations, six portable CO{sub 2} monitors were placed in several Hanford Site buildings to estimate the adequacy of office/workspace ventilation. The monitors assessed the potential for reducing the flow of outdoor-air to the buildings. A candidate building was also identified to monitor various ventilation control strategies for use in developing a plan for implementing and assessing energy savings.

McMordie, K.L.; Carroll, D.M.

1994-05-01T23:59:59.000Z

254

HYBRID HETEROGENEOUS CATALYSTS FOR HYDROGENATION OF CARBON DIOXIDE  

DOE Green Energy (OSTI)

HYBRID HETEROGENEOUS CATALYSTS FOR HYDROGENATION OF CARBON DIOXIDE Lucia M. Petkovic, Harry W. Rollins, Daniel M. Ginosar, and Kyle C. Burch Idaho National Laboratory P.O. Box 1625 Idaho Falls, ID 83415-2208 Introduction Anthropogenic emissions of carbon dioxide, a gas often associated with global warming, have increased considerably since the beginning of the industrial age.1 In the U.S., stationary CO2 sources, such as electricity generation plants, produce about one-third of the anthropogenic CO2 generation. Reports2 indicate that the power required to recover 90% of the CO2 from an integrated coal-fired power-plant is about 10% of the power-plant capacity. This energy requirement can be reduced to less than 1% if the recovered CO2 is applied to the production of synthetic fuels. However, the lack of efficient catalysts along with the costs of energy and hydrogen has prevented the development of technologies for direct hydrogenation of CO2.3 Although the cost of hydrogen for hydrogenating CO2 is not economically attractive at present, the future production of hydrogen by nuclear power sources could completely change this scenario.2 Still, an efficient catalyst will be essential for commercial application of those processes. The objective of the work presented here was the development of hybrid catalysts for one-step carbon dioxide hydrogenation to liquid fuels. The hybrid catalysts, which were prepared by two novel techniques, included a copper/zinc oxide catalytic function distributed within an acidic zeolitic matrix. Results of catalyst activity and selectivity studies at atmospheric pressure are presented in this contribution. Experimental Catalysts were prepared by two novel techniques and under several different conditions to produce copper/zinc oxide/zeolite materials. Once synthesized, samples were pelletized and the fraction between 40-60 mesh was utilized for the experiments. Two hundred milligrams of catalyst were loaded in a U-tube stainless steel reactor and a flow of 100 cm3/min of a 10:90 H2:Ar mixture was passed through the catalyst bed while the temperature was increased from room temperature to 513 K at 1.8 K/min and held at 513 K for 15 h. A reactant gas mixture composed by 10 cm3/min of CO2 and 30 cm3/min of H2 was then passed through the catalyst bed and the reaction products monitored by on-line gas chromatographic analyses using an SRI Multiple Gas Analyzer #2 equipped with 3 columns (MoleSieve 13X, Hayesep-D, and MXT-1) and 3 detectors (TCD, FID, and FID-methanizer). This GC system allowed for quantification of inert gases, CO, CO2, methanol, dimethylether, higher alcohols, water, and hydrocarbons up to C20. One hundred milligrams of a commercial syngas-to-methanol catalyst along with the same amount of a commercial zeolite catalyst was utilized under the same reaction conditions for comparison purposes. These catalysts were utilized either in two-layers (Com1) or mixed together (Com2). Results and Discussion Under the conditions applied in this study, the main reaction products were CO, CH3OH, CH3OCH3, and H2O. Methanol and dimethylether production rates and selectivities with respect to CO formation are presented in Figures 1 and 2, respectively. Although the activity of the synthesized catalysts did not surpass the commercial catalysts, the selectivity to oxygenates with respect to CO on most of the synthesized catalysts were better than on the commercial catalysts. For example, cat

Licia M. Petkovic; Harry W. Rollins; Daniel M. Ginosar; Kyle C. Burch

2006-09-01T23:59:59.000Z

255

Carbon Dioxide Carbonates in the Earth;s Mantle: Implications to the Deep Carbon Cycle  

SciTech Connect

An increase in the ionic character in C-O bonds at high pressures and temperatures is shown by the chemical/phase transformation diagram of CO{sub 2}. The presence of carbonate carbon dioxide (i-CO{sub 2}) near the Earth's core-mantle boundary condition provides insights into both the deep carbon cycle and the transport of atmospheric CO{sub 2} to anhydrous silicates in the mantle and iron core.

Yoo, Choong-Shik; Sengupta, Amartya; Kim, Minseob (Princeton); (WSU)

2012-05-22T23:59:59.000Z

256

Mar., 1955 GASIFICATIONOF CARBONRODSWITH CARBONDIOXIDE 241 GASIFICATION OF CARBON RODS WITH CARBON DIOXIDE1*2  

E-Print Network (OSTI)

Mar., 1955 GASIFICATIONOF CARBONRODSWITH CARBONDIOXIDE 241 GASIFICATION OF CARBON RODS WITH CARBON commercial carbons and their gasification rates with carbon dioxide at a series of temperatures between 900. No general correlation between these properties and the carbon gasification rates was found. Introduction

257

Cobalt carbonyl catalyzed olefin hydroformylation in supercritical carbon dioxide  

DOE Patents (OSTI)

A method of olefin hydroformylation is provided wherein an olefin reacts with a carbonyl catalyst and with reaction gases such as hydrogen and carbon monoxide in the presence of a supercritical reaction solvent, such as carbon dioxide. The invention provides higher yields of n-isomer product without the gas-liquid mixing rate limitation seen in conventional Oxo processes using liquid media.

Rathke, Jerome W. (Lockport, IL); Klingler, Robert J. (Westmount, IL)

1993-01-01T23:59:59.000Z

258

Cobalt carbonyl catalyzed olefin hydroformylation in supercritical carbon dioxide  

DOE Patents (OSTI)

A method of olefin hydroformylation is provided wherein an olefin reacts with a carbonyl catalyst and with reaction gases such as hydrogen and carbon monoxide in the presence of a supercritical reaction solvent, such as carbon dioxide. The invention provides higher yields of n-isomer product without the gas-liquid mixing rate limitation seen in conventional Oxo processes using liquid media.

Rathke, J.W.; Klingler, R.J.

1992-12-31T23:59:59.000Z

259

Cobalt carbonyl catalyzed olefin hydroformylation in supercritical carbon dioxide  

DOE Patents (OSTI)

A method of olefin hydroformylation is provided wherein an olefin reacts with a carbonyl catalyst and with reaction gases such as hydrogen and carbon monoxide in the presence of a supercritical reaction solvent, such as carbon dioxide. The invention provides higher yields of n-isomer product without the gas-liquid mixing rate limitation seen in conventional Oxo processes using liquid media.

Rathke, J.W.; Klingler, R.J.

1993-03-30T23:59:59.000Z

260

CARBON DIOXIDE CAPTURE FROM FLUE GAS USING DRY REGENERABLE SORBENTS  

SciTech Connect

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 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 higher temperature calcination of trona leds to reduced carbonation activity in subsequent cycles, but that calcination in dry carbon dioxide did not result in decreased activity relative to calcination in helium. Following higher temperature calcination, sodium bicarbonate (SBC) No.3 has greater activity than either coarse or fine grades of trona. Fixed bed testing of calcined SBC No.3 at 70 C confirmed that high rates of carbon dioxide absorption are possible and that the resulting product is a mixture of Wegscheider's salt and sodium carbonate. In fluidized bed testing of supported potassium carbonate, very rapid carbonation rates were observed. Activity of the support material complicated the data analysis. A milled, spherical grade of SBC appeared to be similar in attrition and abrasion characteristics to an unmilled, less regularly shaped SBC. The calcination behavior, at 107 C, for the milled and unmilled materials was also similar.

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

2002-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "methane carbon dioxide" 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

Underground storage of natural gas, liquid hydrocarbons, and carbon dioxide  

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

storage of natural gas, liquid hydrocarbons, and carbon storage of natural gas, liquid hydrocarbons, and carbon dioxide (Louisiana) Underground storage of natural gas, liquid hydrocarbons, and carbon dioxide (Louisiana) < Back Eligibility Commercial Construction Industrial Investor-Owned Utility Municipal/Public Utility Utility Program Info State Louisiana Program Type Environmental Regulations Siting and Permitting The Louisiana Department of Environmental Quality regulates the underground storage of natural gas or liquid hydrocarbons and carbon dioxide. Prior to the use of any underground reservoir for the storage of natural gas and prior to the exercise of eminent domain by any person, firm, or corporation having such right under laws of the state of Louisiana, the commissioner, shall have found all of the following:

262

Carbon Dioxide Sequestration (West Virginia) | Department of Energy  

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

Dioxide Sequestration (West Virginia) Dioxide Sequestration (West Virginia) Carbon Dioxide Sequestration (West Virginia) < Back Eligibility Utility Fed. Government Commercial Agricultural Investor-Owned Utility State/Provincial Govt Industrial Construction Municipal/Public Utility Local Government Residential Installer/Contractor Rural Electric Cooperative Tribal Government Low-Income Residential Schools Retail Supplier Institutional Multi-Family Residential Systems Integrator Fuel Distributor Nonprofit General Public/Consumer Transportation Program Info State West Virginia Program Type Environmental Regulations Fees Safety and Operational Guidelines Siting and Permitting The purpose of this law is to: Establish a legal and regulatory framework for the permitting of carbon dioxide sequestration operations; Designate a state agency responsible for establishing standards and

263

Energy Technologies and Carbon Dioxide Management  

Science Conference Proceedings (OSTI)

This symposium will pave the way to accomplish an efficient use of energy and manage ... such as establish carbon footprints and life cycle analysis; develop carbon ... develop carbon credits and offsets for mandatory & voluntary markets, etc.

264

of carbon dioxide containing 12 but the low concentration of 14  

E-Print Network (OSTI)

of carbon dioxide containing 12 C and 13 C, but the low concentration of 14 C has made its measurement in carbon dioxide extremely difficult. Using an ultrasensitive technique called saturated carbon at values well below radiocarbon's natural abundance in carbon dioxide. In their technique

Zare, Richard N.

265

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

266

New Texas Oil Project Will Help Keep Carbon Dioxide Underground |  

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

Texas Oil Project Will Help Keep Carbon Dioxide Underground Texas Oil Project Will Help Keep Carbon Dioxide Underground New Texas Oil Project Will Help Keep Carbon Dioxide Underground February 5, 2013 - 12:05pm Addthis The Air Products and Chemicals hydrogen production facilities in Port Arthur, Texas, is funded by the Energy Department through the 2009 Recovery Act. It is managed by the Office of Fossil Energy’s National Energy Technology Laboratory. | Photo credit Air Products and Chemicals hydrogen production facilities. The Air Products and Chemicals hydrogen production facilities in Port Arthur, Texas, is funded by the Energy Department through the 2009 Recovery Act. It is managed by the Office of Fossil Energy's National Energy Technology Laboratory. | Photo credit Air Products and Chemicals hydrogen

267

New Texas Oil Project Will Help Keep Carbon Dioxide Underground |  

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

New Texas Oil Project Will Help Keep Carbon Dioxide Underground New Texas Oil Project Will Help Keep Carbon Dioxide Underground New Texas Oil Project Will Help Keep Carbon Dioxide Underground February 5, 2013 - 12:05pm Addthis The Air Products and Chemicals hydrogen production facilities in Port Arthur, Texas, is funded by the Energy Department through the 2009 Recovery Act. It is managed by the Office of Fossil Energy’s National Energy Technology Laboratory. | Photo credit Air Products and Chemicals hydrogen production facilities. The Air Products and Chemicals hydrogen production facilities in Port Arthur, Texas, is funded by the Energy Department through the 2009 Recovery Act. It is managed by the Office of Fossil Energy's National Energy Technology Laboratory. | Photo credit Air Products and Chemicals hydrogen

268

Geologic Carbon Dioxide Storage Field Projects Supported by DOE's  

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

Geologic Carbon Dioxide Storage Field Projects Supported by DOE's Geologic Carbon Dioxide Storage Field Projects Supported by DOE's Sequestration Program Geologic Carbon Dioxide Storage Field Projects Supported by DOE's Sequestration Program Background: The U.S. DOE's Sequestration Program began with a small appropriation of $1M in 1997 and has grown to be the largest most comprehensive CCS R&D program in the world. The U.S. DOE's sequestration program has supported a number of projects implementing CO2 injection in the United States and other countries including, Canada, Algeria, Norway, Australia, and Germany. The program has also been supporting a number of complementary R&D projects investigating the science of storage, simulation, risk assessment, and monitoring the fate of the injected CO2 in the subsurface.

269

Total Carbon Dioxide, Hydrographic, and Nitrate Measurements in the  

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

Total Carbon Dioxide, Hydrographic, and Nitrate Measurements in the Southwest Pacific during Austral Autumn, 1990: Results from NOAA/PMEL CGC-90 Cruise. Total Carbon Dioxide, Hydrographic, and Nitrate Measurements in the Southwest Pacific during Austral Autumn, 1990: Results from NOAA/PMEL CGC-90 Cruise. NDP-052 (1995) data Download the Data and ASCII Documentation files of NDP-052 PDF Download a PDF of NDP-052 image Contributed by Marilyn F. Lamb and Richard A. Feely Pacific Marine Environmental Laboratory Seattle, Washington and Lloyd Moore and Donald K. Atwood Atlantic Oceanographic and Meteorological Laboratory Miami, Florida Prepared by Alexander Kozyr* Carbon Dioxide Information Analysis Center Oak Ridge National Laboratory Oak Ridge, Tennessee, U.S.A. *Energy, Environment, and Resources Center The University of Tennessee Knoxville, Tennessee Environmental Sciences Division Publication No. 4420 Date Published: September 1995

270

Means and method for reducing carbon dioxide to a product  

SciTech Connect

A method is described for reducing carbon dioxide to a product comprising the steps of: providing carbon dioxide to a catholyte chamber of a reaction cell; providing water to an anolyte section of the reaction cell, forming a passageway through the reaction cell with a dual porosity cathode between the passageway and catholyte chamber and with a porous anode between the passageway and anolyte chamber; provides an electrolyte in a manner so that it passes through the passageway; and provides a direct current voltage across the dual porosity cathode and anode so as to cause a reduction of the carbon dioxide in cooperation with the electrolyte and hydrogen ions passing through the anode. This passes to a product contained within the electrolyte and causes oxygen to be emitted from the anolyte chamber.

Ang, P.G.P.; Sammels, A.F.

1987-06-16T23:59:59.000Z

271

Supercritical Carbon Dioxide / Reservoir Rock Chemical Interactions | Open  

Open Energy Info (EERE)

Supercritical Carbon Dioxide / Reservoir Rock Chemical Interactions Supercritical Carbon Dioxide / Reservoir Rock Chemical Interactions Jump to: navigation, search Geothermal Lab Call Projects for Supercritical Carbon Dioxide / Reservoir Rock Chemical Interactions Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":200,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026 further results","default":"","geoservice":"google","zoom":false,"width":"600px","height":"350px","centre":false,"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":"","icon":"","visitedicon":"","forceshow":true,"showtitle":true,"hidenamespace":false,"template":false,"title":"","label":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"locations":[{"text":"

272

Carbon molecular sieve (CMS) membranes are microporous carbon membranes formed by pyrolysis of polymers. CMS membranes  

E-Print Network (OSTI)

Carbon molecular sieve (CMS) membranes are microporous carbon membranes formed by pyrolysis mixtures such as carbon dioxide / methane and ethane / ethylene separations. While there are many reports including carbon dioxide, methane, ethane and ethylene and also with selected two-component mixtures

McQuade, D. Tyler

273

Modelling interactions of carbon dioxide, forests, and climate  

SciTech Connect

Atmospheric carbon dioxide is rising and forests and climate is changing! This combination of fact and premise may be evaluated at a range of temporal and spatial scales with the aid of computer simulators describing the interrelationships between forest vegetation, litter and soil characteristics, and appropriate meteorological variables. Some insights on the effects of climate on the transfers of carbon and the converse effect of carbon transfer on climate are discussed as a basis for assessing the significance of feedbacks between vegetation and climate under conditions of rising atmospheric carbon dioxide. Three main classes of forest models are reviewed. These are physiologically-based models, forest succession simulators based on the JABOWA model, and ecosystem-carbon budget models that use compartment transfer rates with empirically estimated coefficients. Some regression modeling approaches are also outlined. Energy budget models applied to forests and grasslands are also reviewed. This review presents examples of forest models; a comprehensive discussion of all available models is not undertaken.

Luxmoore, R.J. [Oak Ridge National Lab., TN (United States); Baldocchi, D.D. [National Oceanic and Atmospheric Administration, Oak Ridge, TN (United States)

1994-09-01T23:59:59.000Z

274

Carbon Dioxide Management - Programmaster.org  

Science Conference Proceedings (OSTI)

Thermodynamic Phase Stability in Gasification Carbon Feedstock Slags ... industrial coal/petcoke feedstock blends in simulated gasifier environments. ... sludge mineralization of calcium and invent a core device for multi-level jet carbonation.

275

EIA - International Energy Outlook 2008-Energy-Related Carbon Dioxide  

Gasoline and Diesel Fuel Update (EIA)

8 8 Figure 75. World Energy-Related Carbon Dioxide Emissions, 2005-2030 Figure 75 Data. Need help, contact the National Energy Information Center at 202-586-8800. Figure 76. World Energy-Related Carbon Dioxide Emissions by Fuel Type, 1990-2030 Figure 76 Data. Need help, contact the National Energy Information Center at 202-586-8800. Figure 77. Average Annual Growth in Energy-Related Carbon Dioxide Emissions in the OECD Economies, 2005-2030 Figure 77 Data. Need help, contact the National Energy Information Center at 202-586-8800. Figure 78. U.S. Energy-Related Carbon Dioide Emissions in IEO2007 and IEO2008, 2005-2030 Figure 78 Data. Need help, contact the National Energy Information Center at 202-586-8800. Figure 79. Average Annual Growth in Energy-Related Carbon Dioxide Emissions in the Non-OECD Economies, 2005-2030 Figure 79 Data. Need help, contact the National Energy Information Center at 202-586-8800.

276

EIA - International Energy Outlook 2007-Energy-Related Carbon Dioxide  

Gasoline and Diesel Fuel Update (EIA)

7 7 Figure 77. World Energy-Related Carbon Dioxide Emissions by Region, 2003-2030 Figure 77 Data. Need help, contact the National Energy Information Center at 202-586-8800. Figure 78. World Energy-Related Carbon Dioxide Emissions by Fuel Type, 1990-2030 Figure 78 Data. Need help, contact the National Energy Information Center at 202-586-8800. Figure 79. Average Annual Growth in Energy-Related Carbon Dioxide Emissions in the OECD Economies, 2004-2030 Figure 79 Data. Need help, contact the National Energy Information Center at 202-586-8800. Figure 80. Average Annual Growth in Energy-Related Carbon Dioide Emissions in the Non-OECD Economies, 2004-2030 Figure 80 Data. Need help, contact the National Energy Information Center at 202-586-8800. Figure 81. World Carbon Dioxide Emissions from Liquids Combustion by Region, 1990-2030 Figure 81 Data. Need help, contact the National Energy Information Center at 202-586-8800.

277

Carbon Management Technologies for Sustainable Coal Utilization  

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

Carbon Dioxide Methane Olefins H 2 CO CO 2 Olefins ethylene + propylene + C 4 -ene + benzene Water pump off Water pump on Fully reformed local pump diesel Equilibrium...

278

Building Technologies Office: Carbon Dioxide-Based Heat Pump Water Heater  

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

Carbon Dioxide-Based Carbon Dioxide-Based Heat Pump Water Heater Research Project to someone by E-mail Share Building Technologies Office: Carbon Dioxide-Based Heat Pump Water Heater Research Project on Facebook Tweet about Building Technologies Office: Carbon Dioxide-Based Heat Pump Water Heater Research Project on Twitter Bookmark Building Technologies Office: Carbon Dioxide-Based Heat Pump Water Heater Research Project on Google Bookmark Building Technologies Office: Carbon Dioxide-Based Heat Pump Water Heater Research Project on Delicious Rank Building Technologies Office: Carbon Dioxide-Based Heat Pump Water Heater Research Project on Digg Find More places to share Building Technologies Office: Carbon Dioxide-Based Heat Pump Water Heater Research Project on AddThis.com...

279

SunShot Initiative: Supercritical Carbon Dioxide Turbo-Expander and Heat  

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

Supercritical Carbon Dioxide Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers to someone by E-mail Share SunShot Initiative: Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers on Facebook Tweet about SunShot Initiative: Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers on Twitter Bookmark SunShot Initiative: Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers on Google Bookmark SunShot Initiative: Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers on Delicious Rank SunShot Initiative: Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers on Digg Find More places to share SunShot Initiative: Supercritical Carbon Dioxide Turbo-Expander and Heat Exchangers on AddThis.com... Concentrating Solar Power Systems Components

280

Global Patterns of Carbon Dioxide Emissions from Soils on a 0...  

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

Potter. 1996. Global Patterns of Carbon Dioxide Emissions from Soils on a 0.5 Degree Grid Cell Basis. DB-1015. Carbon Dioxide Information Analysis Center, U.S. Department of...

Note: This page contains sample records for the topic "methane carbon dioxide" 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.


281

Regenerable Immobilized Aminosilane Sorbents for Carbon Dioxide Capture  

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

Immobilized Aminosilane Sorbents Immobilized Aminosilane Sorbents for Carbon Dioxide Capture Opportunity Research is currently active on the patent-pending technology titled "Regenerable Immobilized Aminosilane Sorbents for Carbon Dioxide Capture." The technology is available for licensing and/or further collaborative research from the U.S. Department of Energy's National Energy Technology Laboratory. Overview Carbon sequestration entails a multi-step process in which CO 2 is first separated / captured from gas streams followed by permanent storage. Carbon capture represents a critical step in the process and accounts for a considerable portion of the overall cost. Newly developed, high capacity amine-based sorbents offer many advantages over existing technology including increased CO

282

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

283

Simulation of binary mixture adsorption of methane and CO{sub 2} at supercritical conditions in carbons  

Science Conference Proceedings (OSTI)

Knowledge of the adsorption behavior of coal-bed gases, mainly under supercritical high-pressure conditions, is important for optimum design of production processes to recover coal-bed methane and to sequester CO{sub 2} in coal-beds. Here, we compare the two most rigorous adsorption methods based on the statistical mechanics approach, which are Density Functional Theory (DFT) and Grand Canonical Monte Carlo (GCMC) simulation, for single and binary mixtures of methane and carbon dioxide in slit-shaped pores ranging from around 0.75 to 7.5 nm in width, for pressure up to 300 bar, and temperature range of 308-348 K, as a preliminary study for the CO{sub 2} sequestration problem. For single component adsorption, the isotherms generated by DFT, especially for CO{sub 2}, do not match well with GCMC calculation, and simulation is subsequently pursued here to investigate the binary mixture adsorption. For binary adsorption, upon increase of pressure, the selectivity of carbon dioxide relative to methane in a binary mixture initially increases to a maximum value, and subsequently drops before attaining a constant value at pressures higher than 300 bar. While the selectivity increases with temperature in the initial pressure-sensitive region, the constant high-pressure value is also temperature independent. Optimum selectivity at any temperature is attained at a pressure of 90-100 bar at low bulk mole fraction of CO{sub 2}, decreasing to approximately 35 bar at high bulk mole fractions.

Kurniawan, Y.; Bhatia, S.K.; Rudolph, V. [University of Queensland, Brisbane, Qld. (Australia). Division of Chemical Engineering

2006-03-15T23:59:59.000Z

284

Methane, Nonmethane Hydrocarbons, Alkyl Nitrates, and Chlorinated Carbon  

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

Atmospheric Trace Gases in Whole-Air Samples Atmospheric Trace Gases in Whole-Air Samples Methane, Nonmethane Hydrocarbons, Alkyl Nitrates, and Chlorinated Carbon Compounds including 3 Chlorofluorocarbons (CFC-11, CFC-12, and CFC-113) in Whole-air Samples graphics Graphics data Data Investigator Donald Blake Department of Chemistry, University of California Irvine, California, 92697 USA Period of Record April 1979 - December 2012 Methods Whole-air samples are collected in conditioned, evacuated, 2-L stainless steel canisters; each canister is filled to ambient pressure over a period of about 1 minute (approximately 20 seconds to 2 minutes). These canisters are returned to the University of California at Irvine for chromatographic analysis. Analysis for methane includes gas chromatography with flame ionization, as

285

Groundwater Chemistry Changes as a Result of Carbon Dioxide Injection  

Science Conference Proceedings (OSTI)

This report provides final results from a combined field, laboratory, and modeling investigation into whether carbon dioxide (CO2) can have an adverse impact on potable groundwater. The investigation was undertaken by the Electric Power Research Institute (EPRI), Lawrence Berkeley National Laboratory, United States Geological Survey (USGS), and Montana State University (MSU).

2009-12-23T23:59:59.000Z

286

II. Greenhouse gas markets, carbon dioxide credits and biofuels17  

E-Print Network (OSTI)

or biodiesel use in Europe. Nevertheless, the EU directive sets a target for the use of biofuels15 II. Greenhouse gas markets, carbon dioxide credits and biofuels17 The previous chapter analysed mandatory blends and utilization targets as policy measures that can provide incentives for expanded

287

Phase relation between global temperature and atmospheric carbon dioxide  

E-Print Network (OSTI)

The primary ingredient of Anthropogenic Global Warming hypothesis is the assumption that atmospheric carbon dioxide variations are the cause for temperature variations. In this paper we discuss this assumption and analyze it on basis of bi-centenary measurements and using a relaxation model which causes phase shifts and delays.

Stallinga, Peter

2013-01-01T23:59:59.000Z

288

Corrosion of various engineering alloys in supercritical carbon dioxide  

E-Print Network (OSTI)

The corrosion resistance of ten engineering alloys were tested in a supercritical carbon dioxide (S-CO 2) environment for up to 3000 hours at 610°C and 20MPa. The purpose of this work was to evaluate each alloy as a potential ...

Gibbs, Jonathan Paul

2010-01-01T23:59:59.000Z

289

Regulation and Permitting of Carbon Dioxide Geologic Sequestration Wells  

Science Conference Proceedings (OSTI)

This report provides an update of the United States’ regulations and project experiences associated with permitting injection wells used for geologic sequestration of carbon dioxide (CO2). This report is an update of a previous Electric Power Research Institute (EPRI) study on this subject published in December 2008 when the draft regulations governing geologic sequestration were first published.BackgroundSeparating ...

2013-12-18T23:59:59.000Z

290

Carbon dioxide flash-freezing applied to ice cream production  

E-Print Network (OSTI)

(cont.) Carbon dioxide is recompressed from 1.97 x 106 Pa (285 psi) to 3.96 x 106 Pa (575 psi). The process is scaled by increasing the number of nozzles to accommodate the desired flow rate. Only 165 nozzles are required ...

Peters, Teresa Baker, 1981-

2006-01-01T23:59:59.000Z

291

Carbon Dioxide Footprint of the Northwest Power System Comments submitted by Grant County Public Utility District  

E-Print Network (OSTI)

Carbon Dioxide Footprint of the Northwest Power System Comments submitted by Grant County Public paper: Carbon Dioxide Footprint of the Northwest Power System, dated September 13, 2007. The Grant done a very thorough job of assessing the current and future carbon dioxide footprints of the Northwest

292

The Effect of Oxygen to Methane Ratio on the Methane-wet Air Autothermal Reforming and Carbon Deposition in the Micro-chamber  

Science Conference Proceedings (OSTI)

Considering the problems of catalyst carbon deposition and reforming endothermic reaction in micro-reforming chamber, coupled methane catalyst partial oxidation and steam methane reforming can make the micro-reforming system auto-supply heat and inhibit ... Keywords: micro-chamber, autothermal reforming, carbon deposition, oxygen to methane ratio

Ran Jingyu; Tu Weifeng

2011-01-01T23:59:59.000Z

293

Supercritical carbon dioxide cycle control analysis.  

SciTech Connect

This report documents work carried out during FY 2008 on further investigation of control strategies for supercritical carbon dioxide (S-CO{sub 2}) Brayton cycle energy converters. The main focus of the present work has been on investigation of the S-CO{sub 2} cycle control and behavior under conditions not covered by previous work. An important scenario which has not been previously calculated involves cycle operation for a Sodium-Cooled Fast Reactor (SFR) following a reactor scram event and the transition to the primary coolant natural circulation and decay heat removal. The Argonne National Laboratory (ANL) Plant Dynamics Code has been applied to investigate the dynamic behavior of the 96 MWe (250 MWt) Advanced Burner Test Reactor (ABTR) S-CO{sub 2} Brayton cycle following scram. The timescale for the primary sodium flowrate to coast down and the transition to natural circulation to occur was calculated with the SAS4A/SASSYS-1 computer code and found to be about 400 seconds. It is assumed that after this time, decay heat is removed by the normal ABTR shutdown heat removal system incorporating a dedicated shutdown heat removal S-CO{sub 2} pump and cooler. The ANL Plant Dynamics Code configured for the Small Secure Transportable Autonomous Reactor (SSTAR) Lead-Cooled Fast Reactor (LFR) was utilized to model the S-CO{sub 2} Brayton cycle with a decaying liquid metal coolant flow to the Pb-to-CO{sub 2} heat exchangers and temperatures reflecting the decaying core power and heat removal by the cycle. The results obtained in this manner are approximate but indicative of the cycle transient performance. The ANL Plant Dynamics Code calculations show that the S-CO{sub 2} cycle can operate for about 400 seconds following the reactor scram driven by the thermal energy stored in the reactor structures and coolant such that heat removal from the reactor exceeds the decay heat generation. Based on the results, requirements for the shutdown heat removal system may be defined. In particular, the peak heat removal capacity of the shutdown heat removal loop may be specified to be 1.1 % of the nominal reactor power. An investigation of the oscillating cycle behavior calculated by the ANL Plant Dynamics Code under specific conditions has been carried out. It has been found that the calculation of unstable operation of the cycle during power reduction to 0 % may be attributed to the modeling of main compressor operation. The most probable reason for such instabilities is the limit of applicability of the currently used one-dimensional compressor performance subroutines which are based on empirical loss coefficients. A development of more detailed compressor design and performance models is required and is recommended for future work in order to better investigate and possibly eliminate the calculated instabilities. Also, as part of such model development, more reliable surge criteria should be developed for compressor operation close to the critical point. It is expected that more detailed compressor models will be developed as a part of validation of the Plant Dynamics Code through model comparison with the experiment data generated in the small S-CO{sub 2} loops being constructed at Barber-Nichols Inc. and Sandia National Laboratories (SNL). Although such a comparison activity had been planned to be initiated in FY 2008, data from the SNL compression loop currently in operation at Barber Nichols Inc. has not yet become available by the due date of this report. To enable the transient S-CO{sub 2} cycle investigations to be carried out, the ANL Plant Dynamics Code for the S-CO{sub 2} Brayton cycle was further developed and improved. The improvements include further optimization and tuning of the control mechanisms as well as an adaptation of the code for reactor systems other than the Lead-Cooled Fast Reactor (LFR). Since the focus of the ANL work on S-CO{sub 2} cycle development for the majority of the current year has been on the applicability of the cycle to SFRs, work has started on modification of the ANL Plant Dynamics Code to allow

Moisseytsev, A.; Sienicki, J. J. (Nuclear Engineering Division)

2011-04-11T23:59:59.000Z

294

Table 11.1 Carbon Dioxide Emissions From Energy Consumption by ...  

U.S. Energy Information Administration (EIA)

1 Metric tons of carbon dioxide can be converted to metric tons of carbon equivalent by multiplying by 12/44. 9 Includes electric power sector use of ...

295

Table 11.2d Carbon Dioxide Emissions From Energy Consumption ...  

U.S. Energy Information Administration (EIA)

1 Metric tons of carbon dioxide can be converted to metric tons of carbon equivalent by multiplying by 12/44. 8 Fuel ethanol minus denaturant. 2 Carbo ...

296

Carbon Dioxide Information Analysis Center (CDIAC)  

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

find data of interest. Ocean investigators may submit data to CDIAC here: image Fossil-Fuel CO2 Emissions Trace Gas Emissions Atmospheric Trace Gases Oceanic Trace Gases Carbon...

297

Development of Geologic Storage Estimates for Carbon Dioxide  

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

the Methodology for the Methodology for Development of Geologic Storage Estimates for Carbon Dioxide Prepared for U.S. Department of Energy National Energy Technology Laboratory Carbon Storage Program September 2010 Summary of the Methodology for Development of Geologic Storage Estimates for Carbon Dioxide 2 Authors: U.S. Department of Energy, National Energy Technology Laboratory/ Strategic Center for Coal/Office of Coal and Power R&D John Litynski U.S. Department of Energy, National Energy Technology Laboratory/ Strategic Center for Coal/Office of Coal and Power R&D/Sequestration Division Dawn Deel Traci Rodosta U. S. Department of Energy, National Energy Technology Laboratory/ Office of Research and Development George Guthrie U. S. Department of Energy, National Energy Technology Laboratory/

298

Carbon dioxide effects research and assessment program  

Science Conference Proceedings (OSTI)

Information about the past and present concentrations of CO/sub 2/ in the atmosphere and variations in climate can be obtained from measurements of stable isotopes in tree rings; specifically carbon-13, oxygen-18 and deuterium. The analysis of these stable isotopes in tree rings is a relatively new and rapidly developing field. This proceedings volume contains most of the papers presented at the meeting. The first paper gives an overview of the status of carbon-13 research. Papers relating to carbon-13 are in section I and grouped separately from the contributions on carbon-14. Although the meeting was primarily concerned with stable isotopes, all carbon isotopic analysis may be helpful in understanding the carbon-13 record in tree rings. The papers on hydrogen and oxygen isotope studies are in sections II and III respectively. The remaining sections contain papers that consider more than one isotope at a time, general topics related to isotopes, atmospheric changes and tree growth, and methods of isotopic analysis.

Jacoby, G. (ed.)

1980-12-01T23:59:59.000Z

299

A New Portable Instrument for In Situ Measurement of Atmospheric Methane Mole Fraction by Applying an Improved Tin Dioxide–Based Gas Sensor  

Science Conference Proceedings (OSTI)

A new portable instrument based on a tin dioxide natural gas leak detector was developed to monitor the atmospheric methane mixing ratio in areas lacking sufficient infrastructure to sustain a conventional measurement system, such as a large ...

Hiroshi Suto; Gen Inoue

2010-07-01T23:59:59.000Z

300

Vehicle Technologies Office: Fact #478: July 16, 2007 U.S. Carbon Dioxide  

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

8: July 16, 2007 8: July 16, 2007 U.S. Carbon Dioxide Emissions by Sector to someone by E-mail Share Vehicle Technologies Office: Fact #478: July 16, 2007 U.S. Carbon Dioxide Emissions by Sector on Facebook Tweet about Vehicle Technologies Office: Fact #478: July 16, 2007 U.S. Carbon Dioxide Emissions by Sector on Twitter Bookmark Vehicle Technologies Office: Fact #478: July 16, 2007 U.S. Carbon Dioxide Emissions by Sector on Google Bookmark Vehicle Technologies Office: Fact #478: July 16, 2007 U.S. Carbon Dioxide Emissions by Sector on Delicious Rank Vehicle Technologies Office: Fact #478: July 16, 2007 U.S. Carbon Dioxide Emissions by Sector on Digg Find More places to share Vehicle Technologies Office: Fact #478: July 16, 2007 U.S. Carbon Dioxide Emissions by Sector on AddThis.com...

Note: This page contains sample records for the topic "methane carbon dioxide" 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.


301

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

302

NETL: News Release - Novel Technology Locates Potential Carbon...  

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

as wood. Since all potential leaks must be detected to ensure permanent carbon dioxide storage, SEQURE's methane detectors then fill in the gaps. The detectors, which will...

303

Solar Power To Help Convert Carbon Dioxide Into Fuel : Renewable Energy News  

E-Print Network (OSTI)

Solar Power To Help Convert Carbon Dioxide Into Fuel : Renewable Energy News TUESDAY 25 MAY, 2010 | | Solar Power To Help Convert Carbon Dioxide Into Fuel by Energy Matters Microbiologist Derek Lovley dioxide into transportation fuels, with the help of special micro-organisms and solar power. The team

Lovley, Derek

304

Optimal Geological Enviornments for Carbon Dioxide Storage in Saline Formations  

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

susan D. Hovorka susan D. Hovorka Principal Investigator University of Texas at Austin Bureau of Economic Geology 10100 Burnet Road, Bldg. 130 P.O. Box X Austin, TX 78713 512-471-4863 susan.hovorka@beg.utexas.edu Optimal GeOlOGical envirOnments fOr carbOn DiOxiDe stOraGe in saline fOrmatiOns Background For carbon dioxide (CO 2 ) sequestration to be a successful component of the United States emissions reduction strategy, there will have to be a favorable intersection of a number of factors, such as the electricity market, fuel source, power plant design and operation, capture technology, a suitable geologic sequestration site, and a pipeline right-of-way from the plant to the injection site. The concept of CO 2 sequestration in saline water-bearing formations (saline reservoirs), isolated at

305

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.

306

Polygeneration of SNG, hydrogen, power, and carbon dioxide from Texas lignite  

Science Conference Proceedings (OSTI)

This feasibility study has shown that siting a mine mouth lignite fed gasification plant in Texas to produce hydrogen, SNG, electric power, and carbon dioxide could be economically feasible in an era of high natural gas prices. Because of the high moisture content of the lignite the choice of gasification system becomes an important issue. Hydrogen produced from Texas lignite in a coproduction plant could be produced in the range $5.20-$6.20/MMBTU (HHV basis) equivalent to between $0.70 and $0.84 per kilogram. This range of hydrogen costs is equivalent to hydrogen produced by steam methane reforming of natural gas if the natural gas feed price was between $3.00 and $4.00/MMBTU. With natural gas prices continuing to remain above $5.00/MMBTU this concept of using Texas lignite for hydrogen production would be economically viable. For the production of SNG from Texas lignite, the costs range from $6.90-$5.00/MMBTU (HHV basis). If natural gas prices remain above $5.00/MMBTU then the configuration using the advanced dry feed gasification system would be economically viable for production of SNG. This option may be even more attractive with other low rank coals such as Wyoming subbituminous and North Dakota lignite coals that are priced lower than Texas lignite. Production of electric power from these conceptual coproduction plants provides a valuable revenue stream. The opportunity to sell carbon dioxide for EOR in Texas provided another valuable revenue stream for the plants. The break even cost of recovering the carbon dioxide ranged from about $5.50 to $7.75 per ton depending on whether SNG or hydrogen was the product.

Gray, D.; Salerno, S.; Tomlinson, G.; Marano, J.J. [Mitretek Systems, Falls Church, VA (United States)

2004-12-15T23:59:59.000Z

307

Regulation and Permitting of Carbon Dioxide Transport and Geologic Sequestration  

Science Conference Proceedings (OSTI)

This report provides a comprehensive review and analysis of United States (U.S.) regulations that will have a direct impact on permitting and commercial-scale deployment of carbon dioxide (CO2) transport and sequestration projects. The report focuses on specific regulations associated with CO2 transport and sequestration, including pipeline regulations and the U.S. Environmental Protection Agency's (EPA's) proposed rules for characterizing, operating, monitoring, and closing CO2 geologic sequestration we...

2008-12-16T23:59:59.000Z

308

Carbon Dioxide Separation with Supported Ionic Liquid Membranes  

DOE Green Energy (OSTI)

Supported liquid membranes are a class of materials that allow the researcher to utilize the wealth of knowledge available on liquid properties as a direct guide in the development of a capture technology. These membranes also have the advantage of liquid phase diffusivities higher than those observed in polymeric membranes which grant proportionally greater permeabilities. The primary shortcoming of the supported liquid membranes demonstrated in past research has been the lack of stability caused by volatilization of the transport liquid. Ionic liquids, which possess high carbon dioxide solubility relative to light gases such as hydrogen, are an excellent candidate for this type of membrane since they have negligible vapor pressure and are not susceptible to evaporation. A study has been conducted evaluating the use of several ionic liquids, including 1-hexyl-3-methyl-imidazolium bis(trifuoromethylsulfonyl)imide, 1-butyl-3-methyl-imidazolium nitrate, and 1-ethyl-3-methyl-imidazolium sulfate in supported ionic liquid membranes for the capture of carbon dioxide from streams containing hydrogen. In a joint project, researchers at the University of Notre Dame lent expertise in ionic liquid synthesis and characterization, and researchers at the National Energy Technology Laboratory incorporated candidate ionic liquids into supports and evaluated the resulting materials for membrane performance. Initial results have been very promising with carbon dioxide permeabilities as high as 950 barrers and significant improvements in carbon dioxide/hydrogen selectivity over conventional polymers at 37C and at elevated temperatures. Results include a comparison of the performance of several ionic liquids and a number of supports as well as a discussion of innovative fabrication techniques currently under development.

Luebke, D.R.; Ilconich, J.B.; Myers, C.R.; Pennline, H.W.

2007-04-01T23:59:59.000Z

309

Carbon Dioxide Fixation by Green Plants  

DOE Green Energy (OSTI)

Since the end of the war when the long-lived isotope of carbon, C{sup 14} became available a new tool has been applied in the study of photosynthesis. Because of the interest evoked by the tracer method, research in all areas of photosynthesis has expanded. There have been reviews on various aspects of photosynthesis such as the primary photochemical reaction, quantum efficiency products, and comparative biochemistry, many discussions of which were included in the monograph of The American Society of Plant Physiologists, ''Photosynthesis in Plants''.

Benson, A.A.; Calvin, M.

1950-01-03T23:59:59.000Z

310

A High Pressure Carbon Dioxide Separation Process for IGCC Plants  

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

High Pressure Carbon Dioxide Separation Process for IGCC Plants High Pressure Carbon Dioxide Separation Process for IGCC Plants 1 A High Pressure Carbon Dioxide Separation Process for IGCC Plants S.S. Tam 1 , M.E. Stanton 1 , S. Ghose 1 , G. Deppe 1 , D.F. Spencer 2 , R.P. Currier 3 , J.S. Young 3 , G.K. Anderson 3 , L.A. Le 3 , and D.J. Devlin 3 1 Nexant, Inc. (A Bechtel Technology & Consulting Company) 45 Fremont St., 7 th Fl., San Francisco, CA 94506 2 SIMTECHE 13474 Tierra Heights Road, Redding, CA 96003 3 Los Alamos National Laboratory P.O. Box 1663 (MS J567), Los Alamos, NM 87545 1.0 INTRODUCTION Under separate contracts from the U.S. Department of Energy, Office of Fossil Energy (DOE- FE), Los Alamos National Laboratory, and a team of SIMTECHE and Nexant (a Bechtel Technology and Consulting Company) are jointly working to develop the proprietary process for

311

A methodology for forecasting carbon dioxide flooding performance  

E-Print Network (OSTI)

A methodology was developed for forecasting carbon dioxide (CO2) flooding performance quickly and reliably. The feasibility of carbon dioxide flooding in the Dollarhide Clearfork "AB" Unit was evaluated using the methodology. This technique is very helpful when time and data resources are limited. The methodology consists of five tasks: 1) select a section of the reservoir with the most detailed geologic, reservoir, and production data, 2) perform material balance analysis for the selected section to determine 001? and the history of total expansion, voidage, and injectage, 3) establish an average 5-spot pattern within the selected section, 4) develop a black oil numerical simulation model for a quarter of the 5-spot pattern and simulate the primary and waterflood recovery processes, and 5) forecast carbon dioxide performance using Shell's Scoping model, Texaco's "PROPHET" model, and VIP miscible simulator. One of the major limitations of the methodology is that details of individual well performance and reservoir pressure and fluid saturation distributions in the project area are not available. Therefore, the forecast is limited to the average pattern and to the reservoir as a whole. Results of the Dollarhide Clearfork simulation study show that 9.7 % to 14.1 % of OOIP may be recovered by C02 flood in the selected section. It would require WAG injection cycles with a total fluid injection of 0.831 HCPV.

Marroquin Cabrera, Juan Carlos

1998-01-01T23:59:59.000Z

312

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

313

Extraction of iron and calcium from low rank coal by supercritical carbon dioxide with entrainers  

SciTech Connect

Iron and calcium were extracted from low rank coal with supercritical carbon dioxide and methanol, ethanol, acetic acid, acetyl acetone, ethanol and acetic acid, or acetyl acetone and water entrainers at 313.2 K and 15.0 MPa. The low rank coal used in this study was Berau coal from Indonesia. The addition of methanol, ethanol, or acetic acid entrainers in supercritical carbon dioxide showed very limited effect on enhancement of the recovery rates of Fe. The recovery rates of Fe from dried coal by supercritical carbon dioxide with acetyl acetone were low however, the addition of acetyl acetone with water in supercritical carbon dioxide remarkably enhanced the recovery rates of Fe. Water seems to play an important role in extracting Fe from coal with supercritical carbon dioxide and acetyl acetone. On the other hand, the extraction rates of Ca with supercritical carbon dioxide and water, methanol, ethanol, and acetyl acetone entrainers were very low. The addition of acetic acid with or without water in supercritical carbon dioxide slightly enhanced the recovery rates of Ca. The addition of acetic acid with ethanol in supercritical carbon dioxide remarkably enhanced the recovery rates of Ca. The effect of carbon dioxide flow rate and coal particle size on the recovery rates of Fe were examined. The recovery rate of Fe increased with increasing carbon dioxide flow rate and with decreasing particle size of the low rank coal.

Iwai, Y.; Okamoto, N.; Ohta, S.; Arai, Y.; Sakanishi, K. [Kyushu University, Fukuoka (Japan). Dept. of Chemical Engineering

2007-03-15T23:59:59.000Z

314

NETL: Electrochemical Membranes for Carbon Dioxide Capture and Power  

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

Electrochemical Membranes for Carbon Dioxide Capture and Power Generation Electrochemical Membranes for Carbon Dioxide Capture and Power Generation Project No.: DE-FE0007634 FuelCell Energy, Inc. has developed a novel system concept for the separation of carbon dioxide (CO2) from greenhouse gas (GHG) emission sources using an electrochemical membrane. The proposed membrane has its genesis from the company's patented Direct FuelCell® (DFC®) technology. The prominent feature of the DFC membrane is its capability to produce power while capturing CO2 from the flue gas from a pulverized coal (PC) plant. The DFC membrane does not require flue gas compression as it operates on the principles of electrochemistry, resulting in net efficiency gains. The membrane utilizes a fuel (different from the plant flue gas, such as coal-derived syngas, natural gas, or a renewable resource) as the driver for the combined carbon capture and electric power generation. The electrochemical membrane consists of ceramic-based layers filled with carbonate salts, separating CO2 from the flue gas. Because of the electrode's high reaction rates, the membrane does not require a high CO2 concentration in its feed gas. The planar geometry of the membrane offers ease of scalability to large sizes suitable for deployment in PC plants, which is an important attribute in membrane design. The membrane has been tested at the laboratory scale, verifying the feasibility of the technology for CO2 separation from simulated flue gases of PC plants as well as combined cycle power plants and other industrial facilities. Fuel Cell Energy, Inc. is advancing the technology to a maturity level suitable for adaption by industry for pilot-scale demonstration and subsequent commercial deployment.

315

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

316

NETL: Methane Hydrates - DOE/NETL Projects - Measurement and...  

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

of CO2 for CH4 has been proposed (and briefly tested) as a method of both extracting methane and sequestering carbon dioxide. Our suite of measurements can be systematically...

317

Carbon dioxide sequestration in cement kiln dust through mineral carbonation  

Science Conference Proceedings (OSTI)

Carbon sequestration through the formation of carbonates is a potential means to reduce CO{sub 2} emissions. Alkaline industrial solid wastes typically have high mass fractions of reactive oxides that may not require preprocessing, making them an attractive source material for mineral carbonation. The degree of mineral carbonation achievable in cement kiln dust (CKD) under ambient temperatures and pressures was examined through a series of batch and column experiments. The overall extent and potential mechanisms and rate behavior of the carbonation process were assessed through a complementary set of analytical and empirical methods, including mass change, thermal analysis, and X-ray diffraction. The carbonation reactions were carried out primarily through the reaction of CO{sub 2} with Ca(OH){sub 2}, and CaCO{sub 3} was observed as the predominant carbonation product. A sequestration extent of over 60% was observed within 8 h of reaction without any modifications to the waste. Sequestration appears to follow unreacted core model theory where reaction kinetics are controlled by a first-order rate constant at early times; however, as carbonation progresses, the kinetics of the reaction are attenuated by the extent of the reaction due to diffusion control, with the extent of conversion never reaching completion. 35 refs., 3 figs., 1 tab.

Deborah N. Huntzinger; John S. Gierke; S. Komar Kawatra; Timothy C. Eisele; Lawrence L. Sutter [University of Michigan, Ann Arbor, MI (United States). Department of Civil and Environmental Engineering

2009-03-15T23:59:59.000Z

318

Apparatus and method for removing solvent from carbon dioxide in resin recycling system  

SciTech Connect

A two-step resin recycling system and method solvent that produces essentially contaminant-free synthetic resin material. The system and method includes one or more solvent wash vessels to expose resin particles to a solvent, the solvent contacting the resin particles in the one or more solvent wash vessels to substantially remove contaminants on the resin particles. A separator is provided to separate the solvent from the resin particles after removal from the one or more solvent wash vessels. The resin particles are next exposed to carbon dioxide in a closed loop carbon dioxide system. The closed loop system includes a carbon dioxide vessel where the carbon dioxide is exposed to the resin, substantially removing any residual solvent remaining on the resin particles after separation. A separation vessel is also provided to separate the solvent from the solvent laden carbon dioxide. Both the carbon dioxide and the solvent are reused after separation in the separation vessel.

Bohnert, George W. (Harrisonville, MO); Hand, Thomas E. (Lee's Summit, MO); DeLaurentiis, Gary M. (Jamestown, CA)

2009-01-06T23:59:59.000Z

319

Vehicle Technologies Office: Fact #479: July 23, 2007 U.S. Carbon Dioxide  

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

9: July 23, 2007 9: July 23, 2007 U.S. Carbon Dioxide Emissions by Sector, 1990-2006 to someone by E-mail Share Vehicle Technologies Office: Fact #479: July 23, 2007 U.S. Carbon Dioxide Emissions by Sector, 1990-2006 on Facebook Tweet about Vehicle Technologies Office: Fact #479: July 23, 2007 U.S. Carbon Dioxide Emissions by Sector, 1990-2006 on Twitter Bookmark Vehicle Technologies Office: Fact #479: July 23, 2007 U.S. Carbon Dioxide Emissions by Sector, 1990-2006 on Google Bookmark Vehicle Technologies Office: Fact #479: July 23, 2007 U.S. Carbon Dioxide Emissions by Sector, 1990-2006 on Delicious Rank Vehicle Technologies Office: Fact #479: July 23, 2007 U.S. Carbon Dioxide Emissions by Sector, 1990-2006 on Digg Find More places to share Vehicle Technologies Office: Fact #479:

320

Geomechanical risks in coal bed carbon dioxide sequestration  

E-Print Network (OSTI)

its geomechanical impact. A coal bed methane production/CO 2should be applicable to coal bed methane CO 2 projects. Ifcompletion for a coal bed methane project involves

Myer, Larry R.

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "methane carbon dioxide" 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

CARBON DIOXIDE MITIGATION THROUGH CONTROLLED PHOTOSYNTHESIS  

DOE Green Energy (OSTI)

This research was undertaken to meet the need for a robust portfolio of carbon management options to ensure continued use of coal in electrical power generation. In response to this need, the Ohio Coal Research Center at Ohio University developed a novel technique to control the emissions of CO{sub 2} from fossil-fired power plants by growing organisms capable of converting CO{sub 2} to complex sugars through the process of photosynthesis. Once harvested, the organisms could be used in the production of fertilizer, as a biomass fuel, or fermented to produce alcohols. In this work, a mesophilic organism, Nostoc 86-3, was examined with respect to the use of thermophilic algae to recycle CO{sub 2} from scrubbed stack gases. The organisms were grown on stationary surfaces to facilitate algal stability and promote light distribution. The testing done throughout the year examined properties of CO{sub 2} concentration, temperature, light intensity, and light duration on process viability and the growth of the Nostoc. The results indicate that the Nostoc species is suitable only in a temperature range below 125 F, which may be practical given flue gas cooling. Further, results indicate that high lighting levels are not suitable for this organism, as bleaching occurs and growth rates are inhibited. Similarly, the organisms do not respond well to extended lighting durations, requiring a significant (greater than eight hour) dark cycle on a consistent basis. Other results indicate a relative insensitivity to CO{sub 2} levels between 7-12% and CO levels as high as 800 ppm. Other significant results alluded to previously, relate to the development of the overall process. Two processes developed during the year offer tremendous potential to enhance process viability. First, integration of solar collection and distribution technology from Oak Ridge laboratories could provide a significant space savings and enhanced use of solar energy. Second, the use of translating slug flow technology to cool the gas stream and enhance bicarbonate concentrations could both enhance organism growth rates and make the process one that could be applied at any fossil-fired power generation unit. These results were augmented by measurements of CO{sub 2} loss from the bioreactor test section. The corresponding mass balance was resolved to within 2%, which is remarkable for the low level of CO{sub 2} actually absorbed by the cyanobacteria. The net result was approximately 10.2 g of CO{sub 2} absorbed of the original 2.97 m{sup 3} of circulating flue gas, (or about 19% of the original CO{sub 2}). While this result in no way predicts the ability of the system to remove CO{sub 2} over the long term in a full-scale operating system, it appears to give credence to the workability of the system.

Unknown

2000-10-01T23:59:59.000Z

322

Management Opportunities for Enhancing Terrestrial Carbon Dioxide Sinks  

Science Conference Proceedings (OSTI)

The potential for mitigating increasing atmospheric carbon dioxide concentrations through the use of terrestrial biological carbon (C) sequestration is substantial. Here, we estimate the amount of C being sequestered by natural processes at global, North American, and national US scales. We present and quantify, where possible, the potential for deliberate human actions – through forestry, agriculture, and use of biomass-based fuels – to augment these natural sinks. Carbon sequestration may potentially be achieved through some of these activities but at the expense of substantial changes in land-use management. Some practices (eg reduced tillage, improved silviculture, woody bioenergy crops) are already being implemented because of their economic benefits and associated ecosystem services. Given their cumulative greenhouse-gas impacts, other strategies (eg the use of biochar and cellulosic bioenergy crops) require further evaluation to determine whether widespread implementation is warranted.

Post, W. M.; Izaurralde, Roberto C.; West, Tristram O.; Liebig, Mark A.; King, Anthony W.

2012-12-01T23:59:59.000Z

323

Method of determining pH by the alkaline absorption of carbon dioxide  

DOE Patents (OSTI)

A method for measuring the concentration of hydroxides in alkaline solutions in a remote location using the tendency of hydroxides to absorb carbon dioxide. The method includes the passing of carbon dioxide over the surface of an alkaline solution in a remote tank before and after measurements of the carbon dioxide solution. A comparison of the measurements yields the absorption fraction from which the hydroxide concentration can be calculated using a correlation of hydroxide or pH to absorption fraction.

Hobbs, David T. (1867 Lodgepole Ave., N. Augusta, SC 29841)

1992-01-01T23:59:59.000Z

324

Carbon Dioxide Sequestration by Direct Mineral Carbonation: Results...  

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

Sequestration by Direct Mineral Carbonation: Results from Recent Studies and Current Status W.K. OConnor (oconnor@alrc.doe.gov) D.C. Dahlin (dahlin@alrc.doe.gov) D.N Nilsen...

325

Experimental investigation of carbon dioxide trapping due to capillary retention in deep saline aquifers.  

E-Print Network (OSTI)

??Carbon dioxide (CO2) is by far the most significant greenhouse gas released by human activities through fossil fuel combustion. In order to minimize CO2 emissions… (more)

Li, Xinqian

2013-01-01T23:59:59.000Z

326

Table 12.1 Carbon Dioxide Emissions From Energy Consumption by ...  

U.S. Energy Information Administration (EIA)

U.S. Energy Information Administration / Monthly Energy Review September 2013 159 Table 12.1 Carbon Dioxide Emissions From Energy Consumption by Source

327

Development of a Carbon Dioxide Micro Gas Sensor with Integrated AgCl Reference Electrode.  

E-Print Network (OSTI)

??ăăIn recent years, high carbon dioxide emissions not only result in serious air pollution and greenhouse effect, but also cause water acidification and decrease the… (more)

Hung, Wei-Che

2013-01-01T23:59:59.000Z

328

Synthesis and reactivity of pyridinediimine iron complexes : for the breakdown of carbon dioxide.  

E-Print Network (OSTI)

??The increase of greenhouse gases in our atmosphere, particularly carbon dioxide (CO2), has been recognized by the scientific, industrial, and political communities. The increase in… (more)

Thammavongsy, Zachary

2013-01-01T23:59:59.000Z

329

Livscykelanalys för koldioxidutsläpp frĺn flerbostadshus; Life Cycle Analysis of Carbon Dioxide Emissions from Residential Buildings.  

E-Print Network (OSTI)

?? Today, about 15 to 20 percent of Sweden’s total emission of carbon dioxide can be traced to the household sector. By examining apartment blocks… (more)

Palmborg, Sofia

2013-01-01T23:59:59.000Z

330

Carbon Dioxide Adsorption by Metal Organic Frameworks (Synthesis, Testing and Modeling).  

E-Print Network (OSTI)

??It is essential to capture carbon dioxide from flue gas because it is considered one of the main causes of global warming. Several materials and… (more)

Sabouni, Rana

2013-01-01T23:59:59.000Z

331

The design, synthesis, and optimization of nanomaterials fabricated in supercritical carbon dioxide .  

E-Print Network (OSTI)

??This thesis presents investigations into the design and synthesis of nanomaterials in supercritical carbon dioxide (sc-CO?) as well as novel experimental design methodologies. First, the… (more)

Casciato, Michael John

2013-01-01T23:59:59.000Z

332

Table 11.2d Carbon Dioxide Emissions From Energy Consumption ...  

U.S. Energy Information Administration (EIA)

2 Carbon dioxide emissions from biomass energy consumption are excluded from total emissions in this table. ... non-combustion use of fossil fuels.

333

Table 11.2b Carbon Dioxide Emissions From Energy Consumption ...  

U.S. Energy Information Administration (EIA)

See Note, "Accounting for Carbon Dioxide Emissions From Biomass Energy Combustion," at end of ... other biomass. 3 Natural gas, excluding supplemental gaseous fuels.

334

Table 11.2a Carbon Dioxide Emissions From Energy Consumption ...  

U.S. Energy Information Administration (EIA)

table. See Note, "Accounting for Carbon Dioxide Emissions From Biomass Energy Combustion," at end of section. R=Revised. P=Preliminary.

335

S&TR | May 2005: Locked in Rock: Sequestering Carbon Dioxide...  

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

abundant greenhouse gas is carbon dioxide (CO2). Many climate research studies focus on developing technologies to greatly reduce the atmospheric levels of CO2. One approach...

336

Table 11.1 Carbon Dioxide Emissions From Energy Consumption by ...  

U.S. Energy Information Administration (EIA)

See Note, "Accounting for Carbon Dioxide Emissions From Biomass Energy Combustion," at end of section. 10 Wood and wood-derived fuels.

337

Table 11.2e Carbon Dioxide Emissions From Energy Consumption ...  

U.S. Energy Information Administration (EIA)

See Note, "Accounting for Carbon Dioxide Emissions From Biomass Energy Combustion," at end of section. R=Revised. P=Preliminary. ... 6 Wood and wood-derived fuels.

338

Table 11.2c Carbon Dioxide Emissions From Energy Consumption ...  

U.S. Energy Information Administration (EIA)

9 Wood and wood-derived fuels. 2 Carbon dioxide emissions from biomass energy consumption are excluded from total emissions in this ... non-combustion use of fossil ...

339

Table 11.2a Carbon Dioxide Emissions From Energy Consumption ...  

U.S. Energy Information Administration (EIA)

6 Wood and wood-derived fuels. ... See Note, "Accounting for Carbon Dioxide Emissions From Biomass Energy Combustion," at end of section. R=Revised. P=Preliminary.

340

Table 11.2b Carbon Dioxide Emissions From Energy Consumption ...  

U.S. Energy Information Administration (EIA)

8 Wood and wood-derived fuels. ... table. See Note, "Accounting for Carbon Dioxide Emissions From Biomass Energy Combustion," at end of section.

Note: This page contains sample records for the topic "methane carbon dioxide" 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

Table 11.2c Carbon Dioxide Emissions From Energy Consumption ...  

U.S. Energy Information Administration (EIA)

9 Wood and wood-derived fuels. ... table. See Note, "Accounting for Carbon Dioxide Emissions From Biomass Energy Combustion," at end of section.

342

Table 11.2e Carbon Dioxide Emissions From Energy Consumption ...  

U.S. Energy Information Administration (EIA)

Wood 6: Waste 7: Total: ... See Note, "Accounting for Carbon Dioxide Emissions From Biomass Energy Combustion," at end of section. R=Revised. P=Preliminary.

343

A Framework for viewing theoretical, technological, economic and market potential of carbon dioxide capture and storage  

SciTech Connect

Paper presents an intelectual framework for viewing how the theoretical, technological, economic and market potentials of carbon dioxide capture and storage are related to each other.

Dooley, James J.

2004-10-04T23:59:59.000Z

344

Feasibility of Supercritical Carbon Dioxide as a Drilling Fluid for Deep Underbalanced Drilling Operations.  

E-Print Network (OSTI)

??Feasibility of drilling with supercritical carbon dioxide to serve the needs of deep underbalanced drilling operations has been analyzed. A case study involving underbalanced drilling… (more)

Gupta, Anamika

2006-01-01T23:59:59.000Z

345

State-Level Energy-Related Carbon Dioxide Emissions, 2000-2009  

U.S. Energy Information Administration (EIA)

Overview. Energy-related carbon dioxide emissions vary significantly across states (Figure 1), whether considered on an absolute or per capita basis.

346

Sorption of Carbon Dioxide from Oxy-fuel Combustion by Lithium ...  

Science Conference Proceedings (OSTI)

Symposium, Materials for CO2 Capture and Conversion. Presentation Title, Sorption of Carbon Dioxide from Oxy-fuel Combustion by Lithium Orthosilicate.

347

Household carbon dioxide production in relation to the greenhouse effect  

SciTech Connect

A survey of 655 households from eastern suburbs of Melbourne was undertaken to determine householders[prime] attitudes to, and understanding of, the greenhouse effect. Carbon dioxide emissions resulting from car, electricity and gas use were computed and household actions which could reduce CO[sub 2] emissions were addressed. Preliminary analysis of the results indicates that householders in this area are aware of, and concerned about, the greenhouse effect, although their understanding of its causes is often poor. Many appreciate the contribution of cars, but are unclear about the relative importance of other household activities. Carbon dioxide emissions from the three sources examined averaged 21[center dot]2 tonnes/year per household and 7[center dot]4 tonnes/year per person. Electricity was the largest contributor (8[center dot]6 tonnes/year), cars the next largest (7[center dot]7 tonnes/year) and gas third (5[center dot] tonnes/year) per household. Emissions varied considerably from household to household. There was a strong positive correlation between availability of economic resources and household CO[sub 2] output from all sources. Carbon dioxide production, particularly from car use, was greater from households which were most distant from a railway station, and from larger households, and numbers of children in the household had little effect on emissions. There were also some economics of scale for households containing more adults. Understanding the causes of the greenhouse bore little relation to change in CO[sub 2] emissions; being concerned about it was associated with a small reduction; but actual actions to reduce car use and household heating, however motivated, produced significant reductions. 12 refs., 9 figs., 6 tabs.

Stokes, D.; Lindsay, A.; Marinopoulos, J.; Treloar, A.; Wescott, G. (Deakin Univ., Clayton (Australia))

1994-03-01T23:59:59.000Z

348

Methane Emissions from Natural Wetlands in the United States: Satellite-Derived Estimation Based on Ecosystem Carbon Cycling  

Science Conference Proceedings (OSTI)

Wetlands are an important natural source of methane to the atmosphere. The amounts of methane emitted from inundated ecosystems in the United States can vary greatly from area to area. Seasonal temperature, water table dynamics, and carbon ...

Christopher Potter; Steven Klooster; Seth Hiatt; Matthew Fladeland; Vanessa Genovese; Peggy Gross

2006-12-01T23:59:59.000Z

349

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

350

Transport Models for Radioactive Carbon Dioxide at RWMC  

SciTech Connect

Radioactive carbon dioxide (formed by oxidation of carbon-14) is a highly mobile, radioactive contaminant released from solid wastes buried at the Subsurface Disposal Area (SDA) at the Radioactive Waste Management Complex (RWMC) at the Idaho National Engineering and Environmental Laboratory (INEEL). Radioactive CO2 is chemically active in the environment, volatile, water soluble, and subject to adsorption on solids. For this reason, its fate must be understood and controlled to meet radiological requirements (protection of the atmosphere, aquifer, vadose zones, plants and animals). In the present work, the migration of carbon-14 as dissolved bicarbonate was studied using miscible displacement experiments in water-saturated columns containing sediments from RWMC. Dissolved carbon-14 was retarded relative to the movement of water by a factor of about 3.6, which translates to a partition coefficient (Kd) of 0.8 ml/g. Two different adsorption sites were identified, with one site possibly having a nonlinear adsorption isotherm. A conservative tracer gas, sulfur hexafluoride, was used to measure the tortuosity of sedimentary material for gaseous diffusion. The tortuosity of the RWMC sediment (Spreading Area B sediment) was determined to be 3.2, which is slightly greater than predicted by the commonly used Millington-Quirk equation. In terms of affecting the migration of carbon-14 to the aquifer, the relative importance of the parameters studied is: (1) natural moisture content of the sediments, (2) sediment tortuosity to gas-phase diffusion, and (3) adsorption onto solid phases.

Hull, Laurence Charles; Hohorst, Frederick August

2001-12-01T23:59:59.000Z

351

Storage of Captured Carbon Dioxide Beneath Federal Lands  

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

Storage of Captured Carbon Storage of Captured Carbon Dioxide Beneath Federal Lands May 8, 2009 DOE/NETL-2009/1358 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 therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The

352

Carbon capture and storage in geologic formations has been proposed as a global warming mitigation strategy  

E-Print Network (OSTI)

Abstract Carbon capture and storage in geologic formations has been proposed as a global warming mitigation strategy that can contribute to stabilize the atmospheric concentration of carbon dioxide to maintain adsorbed methane in the coalbed formation. But now carbon dioxide will replace the methane

Mohaghegh, Shahab

353

Carbon Dioxide Information Analysis Center: FY 1991 activities  

SciTech Connect

During the course of a fiscal year, Oak Ridge National Laboratory`s Carbon Dioxide Information Analysis Center (CDIAC) distributes thousands of specially publications-numeric data packages (NDPs), computer model packages (CMPs), technical reports, public communication publications, newsletters, article reprints, and reference books-in response to requests for information related to global environmental issues, primarily those pertaining to climate change. CDIAC`s staff also provides technical responses to specific inquiries related to carbon dioxide (CO{sub 2}), other trace gases, and climate. Hundreds of referrals to other researchers, policy analysts, information specialists, or organizations are also facilitated by CDIAC`s staff. This report provides an account of the activities accomplished by CDIAC during the period October 1, 1990 to September 30, 1991. An organizational overview of CDIAC and its staff is supplemented by a detailed description of inquiries received and CDIAC`s response to those inquiries. An analysis and description of the preparation and distribution of numeric data packages, computer model packages, technical reports, newsletters, factsheets, specially publications, and reprints is provided. Comments and descriptions of CDIAC`s information management systems, professional networking, and special bilateral agreements are also described.

Cushman, R.M.; Stoss, F.W.

1992-06-01T23:59:59.000Z

354

Table 22. Total Carbon Dioxide Emissions, Projected vs. Actual  

Gasoline and Diesel Fuel Update (EIA)

Total Carbon Dioxide Emissions, Projected vs. Actual Total Carbon Dioxide Emissions, Projected vs. Actual (million metric tons) 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 AEO 1982 AEO 1983 AEO 1984 AEO 1985 AEO 1986 AEO 1987 AEO 1989* AEO 1990 AEO 1991 AEO 1992 AEO 1993 5009 5053 5130 5207 5269 5335 5401 5449 5504 5562 5621 5672 5724 5771 5819 5867 5918 5969 AEO 1994 5060 5130 5185 5240 5287 5335 5379 5438 5482 5529 5599 5658 5694 5738 5797 5874 5925 AEO 1995 5137 5174 5188 5262 5309 5361 5394 5441.3 5489.0 5551.3 5621.0 5679.7 5727.3 5775.0 5841.0 5888.7 AEO 1996 5182 5224 5295 5355 5417 5464 5525 5589 5660 5735 5812 5879 5925 5981 6030 AEO 1997 5295 5381 5491 5586 5658 5715 5781 5863 5934 6009 6106 6184 6236 6268 AEO 1998 5474 5621 5711 5784 5893 5957 6026 6098 6192 6292 6379 6465 6542 AEO 1999 5522 5689 5810 5913 5976 6036 6084 6152 6244 6325 6418 6493 AEO 2000

355

Calculating the probability of injected carbon dioxide plumes encountering faults  

Science Conference Proceedings (OSTI)

One of the main concerns of storage in saline aquifers is leakage via faults. In the early stages of site selection, site-specific fault coverages are often not available for these aquifers. This necessitates a method using available fault data to estimate the probability of injected carbon dioxide encountering and migrating up a fault. The probability of encounter can be calculated from areal fault density statistics from available data, and carbon dioxide plume dimensions from numerical simulation. Given a number of assumptions, the dimension of the plume perpendicular to a fault times the areal density of faults with offsets greater than some threshold of interest provides probability of the plume encountering such a fault. Application of this result to a previously planned large-scale pilot injection in the southern portion of the San Joaquin Basin yielded a 3% and 7% chance of the plume encountering a fully and half seal offsetting fault, respectively. Subsequently available data indicated a half seal-offsetting fault at a distance from the injection well that implied a 20% probability of encounter for a plume sufficiently large to reach it.

Jordan, P.D.

2011-04-01T23:59:59.000Z

356

Carbon Dioxide Information Analysis Center: FY 1992 activities  

SciTech Connect

During the course of a fiscal year, Oak Ridge National Laboratory`s Carbon Dioxide Information Analysis Center (CDIAC) distributes thousands of specialty publications-numeric data packages (NDPs), computer model packages (CMPs), technical reports, public communication publications, newsletters, article reprints, and reference books-in response to requests for information related to global environmental issues, primarily those pertaining to climate change. CDIACs staff also provides technical responses to specific inquiries related to carbon dioxide (CO{sub 2}), other trace gases, and climate. Hundreds of referrals to other researchers, policy analysts, information specialists, or organizations are also facilitated by CDIAC`s staff. This report provides an account of the activities accomplished by CDIAC during the period October 1, 1991 to September 30, 1992. An organizational overview of CDIAC and its staff is supplemented by a detailed description of inquiries received and CDIAC`s response to those inquiries. As analysis and description of the preparation and distribution of numeric data packages, computer model packages, technical reports, newsletters, fact sheets, specialty publications, and reprints is provided. Comments and descriptions of CDIAC`s information management systems, professional networking, and special bilateral agreements are also described.

Cushman, R.M. [Oak Ridge National Lab., TN (United States). Carbon Dioxide Information Analysis Center; Stoss, F.W. [Tennessee Univ., Knoxville, TN (United States). Energy, Environment and Resources Center

1993-03-01T23:59:59.000Z

357

Carbon Dioxide Information Analysis Center: FY 1991 activities  

SciTech Connect

During the course of a fiscal year, Oak Ridge National Laboratory's Carbon Dioxide Information Analysis Center (CDIAC) distributes thousands of specially publications-numeric data packages (NDPs), computer model packages (CMPs), technical reports, public communication publications, newsletters, article reprints, and reference books-in response to requests for information related to global environmental issues, primarily those pertaining to climate change. CDIAC's staff also provides technical responses to specific inquiries related to carbon dioxide (CO{sub 2}), other trace gases, and climate. Hundreds of referrals to other researchers, policy analysts, information specialists, or organizations are also facilitated by CDIAC's staff. This report provides an account of the activities accomplished by CDIAC during the period October 1, 1990 to September 30, 1991. An organizational overview of CDIAC and its staff is supplemented by a detailed description of inquiries received and CDIAC's response to those inquiries. An analysis and description of the preparation and distribution of numeric data packages, computer model packages, technical reports, newsletters, factsheets, specially publications, and reprints is provided. Comments and descriptions of CDIAC's information management systems, professional networking, and special bilateral agreements are also described.

Cushman, R.M.; Stoss, F.W.

1992-06-01T23:59:59.000Z

358

Low pressure storage of methane on interlayered clays for potential vehicular applications. [Comparison with activated carbon  

SciTech Connect

Inexpensive, high surface area sorbents were prepared by treating naturally occurring hectorite and bentonite clays with aluminum chlorohydroxide, zirconium chlorohydroxide, or silica-sol solutions. Data were obtained comparing these interlayered clays with activated carbons and zeolites as sorbents for the low pressure storage of methane onboard natural gas powered vehicles. Methane sorption at pressures up to 7 MPa (1000 psig) resembled a Langmuir-type curve with a saturation sorption equal to about six micromoles of methane per square meter of surface area. Even at low pressures, methane sorption capacity was largely determined by surface area. At 2.2 MPa (300 psig), the best interlayered clay sorbed less than one-third the methane sorbed by an equal volume of Witco grade 9JXC activated carbon. Both the activated carbons and interlayered clays exhibited excellent release-on-demand capability. Driving ranges were calculated for a 2500-lb automobile equipped with three, 35-liter fuel tanks filled with sorbent and pressurized to 3.6 MPa (500 psig) with methane. Enough methane was stored with the best interlayered clay to travel 41 km (25 mi). With 9JXC carbon, one could travel 82 km (51 mi). The same vehicle equipped with high pressure (2400 psig) fuel tanks having the same volume but containing no sorbent would have a 190 km (118 mi) range.

Innes, R.A.; Lutinski, F.E.; Occelli, M.L.; Kennedy, J.V.

1984-07-01T23:59:59.000Z

359

Carbon Dioxide (CO2) Capture Project Phase 2 (CCP2) - Storage...  

Open Energy Info (EERE)

Storage Program of the Carbon Dioxide (CO2) Capture Project (CCP), a coalition of eight oil and gas companies and two associate members that are working together to reduce carbon...

360

Combustion systems and power plants incorporating parallel carbon dioxide capture and sweep-based membrane separation units to remove carbon dioxide from combustion gases  

SciTech Connect

Disclosed herein are combustion systems and power plants that incorporate sweep-based membrane separation units to remove carbon dioxide from combustion gases. In its most basic embodiment, the invention is a combustion system that includes three discrete units: a combustion unit, a carbon dioxide capture unit, and a sweep-based membrane separation unit. In a preferred embodiment, the invention is a power plant including a combustion unit, a power generation system, a carbon dioxide capture unit, and a sweep-based membrane separation unit. In both of these embodiments, the carbon dioxide capture unit and the sweep-based membrane separation unit are configured to be operated in parallel, by which we mean that each unit is adapted to receive exhaust gases from the combustion unit without such gases first passing through the other unit.

Wijmans, Johannes G. (Menlo Park, CA); Merkel, Timothy C (Menlo Park, CA); Baker, Richard W. (Palo Alto, CA)

2011-10-11T23:59:59.000Z

Note: This page contains sample records for the topic "methane carbon dioxide" 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

LANDFILL OPERATION FOR CARBON SEQUESTRATION AND MAXIMUM METHANE EMISSION CONTROL  

SciTech Connect

''Conventional'' waste landfills emit methane, a potent greenhouse gas, in quantities such that landfill methane is a major factor in global climate change. Controlled landfilling is a novel approach to manage landfills for rapid completion of total gas generation, maximizing gas capture and minimizing emissions of methane to the atmosphere. With controlled landfilling, methane generation is accelerated and brought to much earlier completion by improving conditions for biological processes (principally moisture levels) in the landfill. Gas recovery efficiency approaches 100% through use of surface membrane cover over porous gas recovery layers operated at slight vacuum. A field demonstration project's results at the Yolo County Central Landfill near Davis, California are, to date, highly encouraging. Two major controlled landfilling benefits would be the reduction of landfill methane emissions to minuscule levels, and the recovery of greater amounts of landfill methane energy in much shorter times than with conventional landfill practice. With the large amount of US landfill methane generated, and greenhouse potency of methane, better landfill methane control can play a substantial role in reduction of US greenhouse gas emissions.

Don Augenstein

1999-01-11T23:59:59.000Z

362

The carbon dioxide emissions game: Playing the net  

SciTech Connect

Concern about rising concentrations of carbon dioxide in the earth`s atmosphere has led to calls for the United States and other countries to reduce carbon emissions. These concerns resulted in the signing of the Framework Convention on Climate Change at the United Nations Conference on the Environment and Development in Rio de Janeiro in June 1992. The Framework calls for nations to develop action plans for limiting emissions of carbon and other greenhouse gases. In December 1992, in accordance with the Framework, the US Government released for public comment its National Action Plan for Global Climate Change (US Department of State, 1992). The Action Plan detailed steps for reducing carbon emissions by 93 to 130 million metric tons (MMT) by 2000. Some of the steps included in the Action Plan were reforming regulations, setting energy standards, promoting research and development of new energy technologies, expanding the use of alternative-fueled vehicles, and planting trees to sequester carbon. This paper explores the economic implications of implementing a much larger tree-planting program than the one presented in the Action Plan. Whereas the Action Plan estimated that 5 to 9 MMT of carbon (MMTC) could be sequestered in 2000 (with perhaps threefold increases in sequestration in later years when trees are growing the fastest), the program being considered in this analysis annually sequesters as much as 231 MMTC during its peak years. Our analysis focuses on how much the costs of stabilizing US carbon emissions at 1990 levels are reduced when economic criteria alone determine the number of trees that will be used. Our results show that when the focus is shifted from stabilization of gross emissions to net emissions the cost reductions are dramatic, about 20 to 80 percent depending on the assumed cost of trees. Political and institutional obstacles to the formation of such a cost effective response are explored in the conclusions.

Richards, K.R.; Edmonds, J.A.; Rosenthal, D.H.; Wise, M.

1993-06-01T23:59:59.000Z

363

Fluid Dynamics of Carbon Dioxide Disposal into Saline Aquifers  

SciTech Connect

Injection of carbon dioxide (CO{sub 2}) into saline aquifers has been proposed as a means to reduce greenhouse gas emissions (geological carbon sequestration). Large-scale injection of CO{sub 2} will induce a variety of coupled physical and chemical processes, including multiphase fluid flow, fluid pressurization and changes in effective stress, solute transport, and chemical reactions between fluids and formation minerals. This work addresses some of these issues with special emphasis given to the physics of fluid flow in brine formations. An investigation of the thermophysical properties of pure carbon dioxide, water and aqueous solutions of CO{sub 2} and NaCl has been conducted. As a result, accurate representations and models for predicting the overall thermophysical behavior of the system CO{sub 2}-H{sub 2}O-NaCl are proposed and incorporated into the numerical simulator TOUGH2/ECO{sub 2}. The basic problem of CO{sub 2} injection into a radially symmetric brine aquifer is used to validate the results of TOUGH2/ECO2. The numerical simulator has been applied to more complex flow problem including the CO{sub 2} injection project at the Sleipner Vest Field in the Norwegian sector of the North Sea and the evaluation of fluid flow dynamics effects of CO{sub 2} injection into aquifers. Numerical simulation results show that the transport at Sleipner is dominated by buoyancy effects and that shale layers control vertical migration of CO{sub 2}. These results are in good qualitative agreement with time lapse surveys performed at the site. High-resolution numerical simulation experiments have been conducted to study the onset of instabilities (viscous fingering) during injection of CO{sub 2} into saline aquifers. The injection process can be classified as immiscible displacement of an aqueous phase by a less dense and less viscous gas phase. Under disposal conditions (supercritical CO{sub 2}) the viscosity of carbon dioxide can be less than the viscosity of the aqueous phase by a factor of 15. Because of the lower viscosity, the CO{sub 2} displacement front will have a tendency towards instability. Preliminary simulation results show good agreement between classical instability solutions and numerical predictions of finger growth and spacing obtained using different gas/liquid viscosity ratios, relative permeability and capillary pressure models. Further studies are recommended to validate these results over a broader range of conditions.

Garcia, Julio Enrique

2003-12-18T23:59:59.000Z

364

A data analysis decision support system for the carbon dioxide capture process  

Science Conference Proceedings (OSTI)

This paper presents the development process of an expert decision support system for pre-filtering and analysis of data from the carbon dioxide (CO"2) capture process. Chemical absorption has become one of the dominant CO"2 capture technologies because ... Keywords: Carbon dioxide capture process, Data filtering, Expert decision support system

Yuxiang Wu; Christine W. Chan

2009-08-01T23:59:59.000Z

365

Carbon Dioxide Capture from Coal-Fired Power Plants: A Real Options Analysis Ram Chandra Sekar  

E-Print Network (OSTI)

Carbon Dioxide Capture from Coal-Fired Power Plants: A Real Options Analysis by Ram Chandra Sekar;2 #12;3 Carbon Dioxide Capture in Coal-Fired Power Plants: A Real Options Analysis by Ram Chandra Sekar and Master of Science in Mechanical Engineering ABSTRACT Investments in three coal-fired power generation

366

Development of a dissolved carbon dioxide sensor with a HPTS-incorporated polymer membrane  

Science Conference Proceedings (OSTI)

In this study a dissolved carbon dioxide sensor is made by using the fluorescent dye, HPTS incorporated into a polymer matrix, polyHEMA-co-EGDA. The HPTS-incorporated polymer membrane soaking in sodium bicarbonate buffer solution is put into a well in ... Keywords: carbon dioxide, fermentation, fluorescence, polymer membrane, sensor

Ok-Jae Sohn; Jong Il Rhee

2008-11-01T23:59:59.000Z

367

Void-free micro-pattern of nickel fabricated by electroplating with supercritical carbon dioxide emulsion  

Science Conference Proceedings (OSTI)

Void-free micro-pattern of nickel was fabricated electrochemically by applying supercritical carbon dioxide emulsion (Sc-CO"2-E). Evolution of hydrogen gas bubbles is usually the cause of defect and pinholes for microstructures fabricated electrochemically ... Keywords: Micro-pattern, Microstructure, Nickel, Supercritical carbon dioxide emulsion, Void-free

Tso-Fu Mark Chang; Toshikazu Tasaki; Chiemi Ishiyama; Masato Sone

2011-08-01T23:59:59.000Z

368

Effects of supercritical carbon dioxide treatment on bending properties of micro-sized SU-8 Specimens  

Science Conference Proceedings (OSTI)

The bending properties of micro-sized photoresist patterns are quantitatively evaluated using micro-sized SU-8 cantilever type test specimens to clarify the effects of supercritical carbon dioxide-treatment (ScCO"2-treatment). The SU-8 specimens were ... Keywords: Bending strength, Degree of crosslinking, Micro-sized materials, Photoresist, SU-8, Supercritical carbon dioxide

Chiemi Ishiyama; Tso-Fu Mark Chang; Masato Sone

2011-08-01T23:59:59.000Z

369

METHOD FOR PRODUCING ISOTOPIC METHANES FROM LITHIUM CARBONATE AND LITHIUM HYDRIDE  

DOE Patents (OSTI)

A process is descrlbed for the production of methane and for the production of methane containing isotopes of hydrogen and/or carbon. Finely divided lithium hydrlde and litldum carbonate reactants are mixed in intimate contact and subsequently compacted under pressures of from 5000 to 60,000 psl. The compacted lithium hydride and lithium carbenate reactunts are dispised in a gas collecting apparatus. Subsequently, the compact is heated to a temperature in the range 350 to 400 deg C whereupon a solid-solid reaction takes place and gaseous methane is evolved. The evolved methane is contaminated with gaseous hydrogen and a very small amount of CO/sub 2/; however, the desired methane product is separated from sald impurities by well known chemical processes, e.g., condensation in a cold trap. The product methane contalns isotopes of carbon and hydrogen, the Isotopic composition being determined by the carbon isotopes originally present In the lithium carbonate and the hydrogen isotopes originally present in the lithium hydride.

Frazer, J.W.

1959-10-27T23:59:59.000Z

370

Analysis and optimization of the Graz cycle : a coal fired power generation scheme with near-zero carbon dioxide emissions  

E-Print Network (OSTI)

Humans are releasing record amounts of carbon dioxide into the atmosphere through the combustion of fossil fuels in power generation plants. With mounting evidence that this carbon dioxide is a leading cause of global ...

Alexander, Brentan R

2007-01-01T23:59:59.000Z

371

The Path of Carbon in Photosynthesis IX. Photosynthesis,Photoreduction and the Hydrogen-Oxygen-Carbon Dioxide Dark Reaction  

SciTech Connect

A comparison of the rates of fixation of Carbon 14 dioxide in algae for the processes of photosynthesis, photoreduction and the hydrogen-oxygen-carbon dioxide dark reaction has been made. For the same series of experiments, rates of incorporation of tracer carbon into the separate soluble components using the radiogram method have been determined. The mechanism of carbon dioxide uptake has been shown to occur via two distinct paths. In all cases studied, essentially the same compounds appear radioactive. The distribution with time, however, differs markedly.

Badin, Elmer J.; Calvin, Melvin

1950-02-01T23:59:59.000Z

372

The Path of Carbon in Photosynthesis IX. Photosynthesis, Photoreduction, and the Hydrogen-Oxygen-Carbon Dioxide Dark Reaction  

DOE R&D Accomplishments (OSTI)

A comparison of the rates of fixation of Carbon 14 dioxide in algae for the processes of photosynthesis, photoreduction and the hydrogen-oxygen-carbon dioxide dark reaction has been made. For the same series of experiments, rates of incorporation of tracer carbon into the separate soluble components using the radiogram method have been determined. The mechanism of carbon dioxide uptake has been shown to occur via two distinct paths. In all cases studied, essentially the same compounds appear radioactive. The distribution with time, however, differs markedly.

Badin, E. J.; Calvin, M.

1950-02-01T23:59:59.000Z

373

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

374

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

375

The Net Environmental Effects of Carbon Dioxide Reduction Policies  

E-Print Network (OSTI)

............................................................................................................3 Clean Coal Technology Production of Methane from Hydrates and Unconventional Sources Biofuels production: clean coal, methane production from unconventional sources, biofuels, and renewable energy, including computational fluid dynamics (CFD) modeling and fluidized bed coal-gasification processes

376

Implications of surface seepage on the effectiveness of geologic storage of carbon dioxide as a climate change mitigation strategy  

E-Print Network (OSTI)

carbon dioxide (CO 2 ) will become an important climate change mitigation strategy will depend on a number of factors,

Hepple, Robert P.; Benson, Sally M.

2002-01-01T23:59:59.000Z

377

Damage of Land Biosphere due to Intense Warming by 1000-Fold Rapid Increase in Atmospheric Methane: Estimation with a Climate–Carbon Cycle Model  

Science Conference Proceedings (OSTI)

Decadal-time-scale responses of climate and the global carbon cycle to warming associated with rapid increases in atmospheric methane from a massive methane release from marine sedimentary methane hydrates are investigated with a coupled climate–...

Atsushi Obata; Kiyotaka Shibata

2012-12-01T23:59:59.000Z

378

Monthly, global emissions of carbon dioxide from fossil fuel consumption  

Science Conference Proceedings (OSTI)

This paper examines available data, develops a strategy and presents a monthly, global time series of fossil-fuel carbon dioxide emissions for the years 1950 2006. This monthly time series was constructed from detailed study of monthly data from the 21 countries that account for approximately 80% of global total emissions. These data were then used in a Monte Carlo approach to proxy for all remaining countries. The proportional-proxy methodology estimates by fuel group the fraction of annual emissions emitted in each country and month. Emissions from solid, liquid and gas fuels are explicitly modelled by the proportional-proxy method. The primary conclusion from this study is the global monthly time series is statistically significantly different from a uniform distribution throughout the year. Uncertainty analysis of the data presented show that the proportional-proxy method used faithfully reproduces monthly patterns in the data and the global monthly pattern of emissions is relatively insensitive to the exact proxy assignments used. The data and results presented here should lead to a better understanding of global and regional carbon cycles, especially when the mass data are combined with the stable carbon isotope data in atmospheric transport models.

Andres, Robert Joseph [ORNL; Gregg, JS [Riso National Laboratory, Roskilde, Denmark; Losey, London M [ORNL; Marland, Gregg [ORNL; Boden, Thomas A [ORNL

2011-01-01T23:59:59.000Z

379

Separation and Fixation of Carbon Dioxide Using Polymeric Membrane Contactor  

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

National Natural Science Foundation of China. National Natural Science Foundation of China. Separation and Fixation of Carbon Dioxide Using Polymeric Membrane Contactor Zhikang XU, Jianli WANG, Wei CHEN, Youyi XU Institute of Polymer Science, Zhejiang University, 310027, Hangzhou, P. R. China Tel: +86-571-7951342-8218, E-mail: xuzk@ipsm.zju.edu.cn ABSTRACT: Polypropylene hollow fiber membrane (PPHFM) contactor, with aqueous solution absorbent such as sodium hydroxide (NaOH), monoethanolamine (MEA) and diethanolamine (DEA), was designed and used to separate and fix CO 2 from CO 2 /N 2 gas mixtures. The factors that influence the separation properties of CO 2 /N 2 were investigated. It was found that the CO 2 removal efficiency is the best by using MEA solution as absorbent. The overall mass transfer coefficient (K) increases

380

Carbon Dioxide Separation with Novel Microporous Metal Organic Frameworks  

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

David a. Lang David a. Lang Project Manager National Energy Technology Laboratory 626 Cochrans Mill Road P.O. Box 10940 Pittsburgh, PA 15236-0940 412-386-4881 david.lang@netl.doe.doe Richard Willis Principal Investigator UOP LLC 50 East Algonquin Road Des Plaines, IL 60016 847-391-3190 Richard.Willis@uop.com Carbon DioxiDe Separation with novel MiCroporouS Metal organiC FraMeworkS Background UOP LLC, in collaboration with Vanderbilt University and the University of Edinburgh, is working to develop novel microporous metal organic frameworks (MOFs) and an associated process for the removal of CO 2 from coal-fired power plant flue gas. This innovative project will exploit the latest discoveries in an extraordinary class of materials (MOFs) having extremely high adsorption capacities. MOFs have previously exhibited

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381

Historical carbon dioxide: abundances derived from the Smithsonian spectrobolograms  

Science Conference Proceedings (OSTI)

The analysis of spectroscopic records offers a method for measuring the concentration of atmospheric carbon dioxide. In view of the sparseness and questionable accuracy of the records of CO/sub 2/ concentration prior to 1957 an effort has been initiated to use archived spectroscopic measurements of the sun an a source of such data. The largest and most significant collection of such spectra was generated during the course of a program to measure the solar constant, supported by the Smithsonian Astrophysical Observatory. This program ran from approximately 1920 to 1958, resulting in the generation of a nearly daily record of the solar and telluric spectrum. A representative sample of Smithsonian spectrobolograms have been analyzed for 1935, 1941, and 1948. The resulting carbon dioxide concentrations for those years are 297.7 +- 5.6, 298.4 +- 6.3, and 308.3 +- 4.6 ppM, respectively. There may be an additional 2 to 3 ppM systematic error in this result because of remaining uncertainties in absolute band strengths and the precise relationship between intergrated column density and surface density measurements. These results also yield an annual increase of 0.59 +- .27 ppM for the average trend for the period of 1935 through 1948. The method of analysis used to obtain these results is described in detail. It appears to be much less sensitive to the sources of error that have plagued earlier analyses of the same data. The results also offer obvious guidance as to steps that may be taken to improve the analysis of the data. 43 references, 24 figures, 10 tables.

Stokes, G.M.; Barnard, J.C.; Pearson, E.W.

1984-08-01T23:59:59.000Z

382

Accounting for Carbon Dioxide Emissions from Bioenergy Systems  

DOE Green Energy (OSTI)

Researchers have recently argued that there is a 'critical climate accounting error' and that we should say 'goodbye to carbon neutral' for bioenergy. Many other analysts have published opionions on the same topic, and the US Environmental Protection Agency posted a specific call for information. The currently burning questions for carbon accounting is how to deal with bioenergy. The questions arises because, unlike for fossil fuels, burning of biomass fuels represents part of a cycle in which combustion releases back to the atmosphere carbon that was earlier removed from the atmosphere by growing plants. In a sustainable system, plants will again remove the carbon dioxide (CO{sub 2}) from the atmosphere. Conceptually, it is clear that there are no net emissions of the greenhouse gas CO{sub 2} if biomass is harvested and combusted at the same rate that biomass grows and removes CO{sub 2} from the atmosphere. The problem lies in the fact that growth and combustion do not occur at the same time or in the same place, and our accounting system boundaries - spatial and temporal - frequently do not provide full and balanced accounting. When the first comprehensive guidelines for estimating national greenhouse gas emissions and sinks were put together by the Organization for Economic Cooperation and Development, they noted that it has been argued that CO{sub 2} emissions resulting from bioenergy consumption should not be included in a country's official emission inventory because there are no net emissions if the biomass is produced sustainably, and if the biomass is not produced sustainably, the loss of carbon will be captured as part of the accounting for emissions from land-use change. In the same philosophical vein, the Kyoto Protocol provides that emissions or sinks of CO{sub 2} from land-use change and forestry activities be measured as the 'verifiable changes in carbon stocks'. From these has grown the convention that emissions from biomass fuels are generally not counted as part of emissions inventories, and biomass energy is sometimes referred to as being 'carbon neutral.' But what happens when a forest is harvested for fuel but takes 60 years to regrow or when biomass is harvested in a country that is not party to an international accord but is burned in a country that is party to an international accord? Biomass energy is only truly 'carbon neutral' if we get the system boundaries right. They need to make sure that the accounting methodology is compatible with our needs and realities in management and policy.

Marland, Gregg [ORNL

2010-12-01T23:59:59.000Z

383

Energy Balance and Carbon Dioxide Flux in Conventional and No-Till Maize Fields in Lesotho, Southern Africa.  

E-Print Network (OSTI)

?? The capacity of soils to sequester carbon is currently of scientific interest because soil management impacts carbon dioxide flux and can mitigate the effects… (more)

Bruns, Wendy Anne

2012-01-01T23:59:59.000Z

384

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

385

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

386

NETL: IEP – Post-Combustion CO2 Emissions Control - Carbon Dioxide  

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

Carbon Dioxide Recovery from Flue Gas using Carbon-Supported Amine Sorbents Carbon Dioxide Recovery from Flue Gas using Carbon-Supported Amine Sorbents Project No.: FG02-04ER83885 SBIR Virtual Depiction of a Carbon-Supported Amine Sorbent Virtual Depiction of a Carbon-Supported Amine Sorbent Advanced Fuel Research, Inc. has completed a small business innovative research (SBIR) project that initiated development of a novel sorbent for the removal of carbon dioxide (CO2) from combustion flue gas. The primary goal of this project wa s to develop a process using a supported amine for CO2 capture that exhibits better system efficiency, lower cost, and less corrosion than current aqueous amine-based processes. The project was to demonstrate performance of carbon-supported amine sorbents under simulated flue gas conditions. Three tasks were undertaken:

387

LANDFILL OPERATION FOR CARBON SEQUESTRATION AND MAXIMUM METHANE EMISSION CONTROL  

Science Conference Proceedings (OSTI)

Controlled landfilling is an approach to manage solid waste landfills, so as to rapidly complete methane generation, while maximizing gas capture and minimizing the usual emissions of methane to the atmosphere. With controlled landfilling, methane generation is accelerated to more rapid and earlier completion to full potential by improving conditions (principally moisture, but also temperature) to optimize biological processes occurring within the landfill. Gas is contained through use of surface membrane cover. Gas is captured via porous layers, under the cover, operated at slight vacuum. A field demonstration project has been ongoing under NETL sponsorship for the past several years near Davis, CA. Results have been extremely encouraging. Two major benefits of the technology are reduction of landfill methane emissions to minuscule levels, and the recovery of greater amounts of landfill methane energy in much shorter times, more predictably, than with conventional landfill practice. With the large amount of US landfill methane generated, and greenhouse potency of methane, better landfill methane control can play a substantial role both in reduction of US greenhouse gas emissions and in US renewable energy. The work described in this report, to demonstrate and advance this technology, has used two demonstration-scale cells of size (8000 metric tons [tonnes]), sufficient to replicate many heat and compaction characteristics of larger ''full-scale'' landfills. An enhanced demonstration cell has received moisture supplementation to field capacity. This is the maximum moisture waste can hold while still limiting liquid drainage rate to minimal and safely manageable levels. The enhanced landfill module was compared to a parallel control landfill module receiving no moisture additions. Gas recovery has continued for a period of over 4 years. It is quite encouraging that the enhanced cell methane recovery has been close to 10-fold that experienced with conventional landfills. This is the highest methane recovery rate per unit waste, and thus progress toward stabilization, documented anywhere for such a large waste mass. This high recovery rate is attributed to moisture, and elevated temperature attained inexpensively during startup. Economic analyses performed under Phase I of this NETL contract indicate ''greenhouse cost effectiveness'' to be excellent. Other benefits include substantial waste volume loss (over 30%) which translates to extended landfill life. Other environmental benefits include rapidly improved quality and stabilization (lowered pollutant levels) in liquid leachate which drains from the waste.

Don Augenstein; Ramin Yazdani; Rick Moore; Michelle Byars; Jeff Kieffer; Professor Morton Barlaz; Rinav Mehta

2000-02-26T23:59:59.000Z

388

Appendix B: CArBon dioxide CApture teChnology SheetS  

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

membranes membranes B-370 Post-Combustion membranes u.s. DePartment of energy aDvanCeD Carbon DioxiDe CaPture r&D Program: teChnology uPDate, may 2013 eleCtroChemiCal membrane for Carbon DioxiDe CaPture & Power generation primary project goals FuelCell Energy, Inc. (FCE) is developing an electrochemical membrane (ECM)-based Combined Electric Power and Carbon Dioxide Separation (CEPACS) system for carbon dioxide (CO 2 ) capture that also provides additional electrical power generation. The project includes bench-scale testing of an 11.7 m 2 -area ECM (molten carbonate fuel cell) system for CO 2 capture, purification, and compression. technical goals * Perform contaminant effect testing to establish maximum permissible concentrations of

389

Underground Storage of Carbon Dioxide-as a Solid | U.S. DOE Office of  

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

Underground Storage of Carbon Dioxide-as a Solid Underground Storage of Carbon Dioxide-as a Solid Advanced Scientific Computing Research (ASCR) ASCR Home About Research Facilities Science Highlights Benefits of ASCR Funding Opportunities Advanced Scientific Computing Advisory Committee (ASCAC) News & Resources Contact Information Advanced Scientific Computing Research U.S. Department of Energy SC-21/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-7486 F: (301) 903-4846 E: sc.ascr@science.doe.gov More Information » July 2012 Underground Storage of Carbon Dioxide-as a Solid Nanoscale features in rocks enable more carbon dioxide to be trapped as a solid carbonate material underground. Print Text Size: A A A Subscribe FeedbackShare Page Click to enlarge photo. Enlarge Photo Image courtesy of Lawrence Berkeley National Laboratory

390

DOE Study Monitors Carbon Dioxide Storage in Norway's Offshore Sleipner Gas  

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

DOE Study Monitors Carbon Dioxide Storage in Norway's Offshore DOE Study Monitors Carbon Dioxide Storage in Norway's Offshore Sleipner Gas Field DOE Study Monitors Carbon Dioxide Storage in Norway's Offshore Sleipner Gas Field May 21, 2009 - 1:00pm Addthis Washington, D.C. -- In a newly awarded project, researchers funded by the U.S. Department of Energy (DOE) are partnering with European scientists to track injected carbon dioxide (CO2) in the world's first and longest running carbon storage operation located at the Sleipner gas field in the North Sea. The researchers--from the Scripps Institution of Oceanography at the University of California, San Diego, and the Lamont-Doherty Earth Observatory (LDEO) in New York--will conduct surveys on the seafloor to monitor injected CO2 in the 1 kilometer-deep reservoir, where more than

391

Relevance of underground natural gas storage to geologic sequestration of carbon dioxide  

Science Conference Proceedings (OSTI)

The practice of underground natural gas storage (UNGS), which started in the USA in 1916, provides useful insight into the geologic sequestration of carbon dioxide--the dominant anthropogenic greenhouse gas released into the atmosphere. In many ways, UNGS is directly relevant to geologic CO{sub 2} storage because, like CO{sub 2}, natural gas (essentially methane) is less dense than water. Consequently, it will tend to rise to the top of any subsurface storage structure located below the groundwater table. By the end of 2001 in the USA, about 142 million metric tons of natural gas were stored underground in depleted oil and gas reservoirs and brine aquifers. Based on their performance, UNGS projects have shown that there is a safe and effective way of storing large volumes of gases in the subsurface. In the small number of cases where failures did occur (i.e., leakage of the stored gas into neighboring permeable layers), they were mainly related to improper well design, construction, maintenance, and/or incorrect project operation. In spite of differences in the chemical and physical properties of the gases, the risk-assessment, risk-management, and risk-mitigation issues relevant to UNGS projects are also pertinent to geologic CO{sub 2} sequestration.

Lippmann, Marcelo J.; Benson, Sally M.

2002-07-01T23:59:59.000Z

392

Remote sounding of the mixing ratio of carbon dioxide in the atmosphere from a satellite  

SciTech Connect

Carbon dioxide is the most important atmospheric constituent contributing to the greenhouse effect in the earth-atmosphere system. Here, a method is presented for the remote sounding of the mixing ratio of carbon dioxide in the atmosphere from a satellite, including the inversion method and preliminary calculation results. The results indicate that the measurement accuracy of the mixing ratio of carbon dioxide in 0.25 ppm, calculated according to volume, in ground field of view of 1,127 x 1,162 km[sup 2] for an instrument such as the HIRS-2 on the US National Oceanographic and Atmospheric Administration meteorological satellite.

Zhaoxian Zhang (Shangai Inst. of Technical Physics (China))

1993-03-01T23:59:59.000Z

393

Organoclay Sorbent for Removal of Carbon Dioxide from Gas Streams at Low Temperatures  

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

Organoclay Sorbent for Removal of Carbon Dioxide from Gas Organoclay Sorbent for Removal of Carbon Dioxide from Gas Streams at Low Temperatures Contact NETL Technology Transfer Group techtransfer@netl.doe.gov October 2012 Significance * Energy mixing is maximized * Mobilizing of the particulates is complete * No "dead zones" exist * Packing of material is minimized * Eroding effects are significantly reduced Applications * Mixing nuclear waste at Hanford * Any similar industrial process involving heavy solids in a carrier fluid Opportunity Research is currently active on the patent-pending technology "Organoclay Sorbent for Removal of Carbon Dioxide from

394

Method of determining pH by the alkaline absorption of carbon dioxide  

DOE Patents (OSTI)

A method is described for measuring the concentration of hydroxides in alkaline solutions in a remote location using the tendency of hydroxides to absorb carbon dioxide. The method includes the passing of carbon dioxide over the surface of an alkaline solution in a remote tank before and after measurements of the carbon dioxide solution. A comparison of the measurements yields the absorption fraction from which the hydroxide concentration can be calculated using a correlation of hydroxide or pH to absorption fraction. 2 figs.

Hobbs, D.T.

1992-10-06T23:59:59.000Z

395

Capture and Use of Coal Mine Ventilation-Air Methane  

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

Capture and use of Coal Mine Capture and use of Coal Mine Ventilation - air Methane Background Methane emissions from coal mines represent about 10 percent of the U.S. anthropogenic methane released to the atmosphere. Methane-the second most important non-water greenhouse gas-is 21 times as powerful as carbon dioxide (CO 2 ) in its global warming potential. Ventilation-air methane (VAM)-the exhaust air from underground coal mines-is the largest source of coal mine methane, accounting for about half of the methane emitted from coal mines in the United States. Unfortunately, because of the low methane concentration (0.3-1.5 percent) in ventilation air, its beneficial use is difficult. However, oxidizing the methane to CO 2 and water reduces its global warming potential by 87 percent. A thermal

396

NETL: Pre-Combustion Carbon Dioxide Capture by a New Dual-Phase Ceramic  

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

Pre-Combustion Carbon Dioxide Capture by a New Dual-Phase Ceramic Carbonate Membrane Reactor Pre-Combustion Carbon Dioxide Capture by a New Dual-Phase Ceramic Carbonate Membrane Reactor Project No.: DE-FE0000470 Arizona State University is developing a dual-phase, membrane-based separation device which will separate carbon dioxide (CO2) from typical water gas shift (WGS) mixture feeds and produce hydrogen, which can be introduced into the combustion turbines of integrated gasification combined cycle (IGCC) plants. The objectives of the project are experimental studies of the synthesis of a high-temperature, chemically and thermally stable and CO2 perm-selective dual-phase membrane and its use as a membrane reactor for WGS reaction to produce H2 and CO2 rich streams. Concept of ceramic-carbonate dual phase membranes for CO2 separation. Concept of ceramic-carbonate dual phase membranes for CO2 separation.

397

Measurements of Surface Ocean Carbon Dioxide Partial Pressure During WOCE  

SciTech Connect

All of the technical goals of the World Ocean Circulation Experiment (WOCE) field program which were supported under the Department of Energy research grant ''Measurements of Surface Ocean Carbon Dioxide Partial Pressure During WOCE'' (DE-FG03-90ER60981) have been met. This has included the measurement of the partial pressures of carbon dioxide (C0{sub 2}) and nitrous oxide (N{sub 2}O) in both the surface ocean and the atmosphere on 24 separate shipboard expedition legs of the WOCE Hydrographic Programme. These measurements were made in the Pacific, Indian and Atlantic Oceans over a six-and-a-half year period, and over a distance of nearly 200,000 kilometers of ship track. The total number of measurements, including ocean measurements, air measurements and standard gas measurements, is about 136,000 for each gas, or about 34,000 measurements of each gas in the ocean and in the air. This global survey effort is directed at obtaining a better understanding of the role of the oceans in the global atmospheric budgets of two important natural and anthropogenic modulators of climate through the ''greenhouse effect'', CO{sub 2} and N{sub 2}O, and an important natural and anthropogenic modulator of the Earth's protective ozone layer through catalytic processes in the stratosphere, N{sub 2}O. For both of these compounds, the oceans play a major role in their global budgets. In the case of CO{sub 2}, roughly half of the anthropogenic production through the combustion of fossil fuels has been absorbed by the world's oceans. In the case of N{sub 2}O, roughly a third of the natural flux to the atmosphere originates in the oceans. As the interpretation of the variability in the oceanic distributions of these compounds improves, measurements such as those supported by this research project are playing an increasingly important role in improving our understanding of natural and anthropogenic influences on climate and ozone. (B204)

Weiss, R.F.

1998-10-15T23:59:59.000Z

398

Sequestering carbon dioxide in industrial polymers: Building materials for the 21st century  

SciTech Connect

This study was undertaken to determine the possibility of developing beneficial uses for carbon dioxide as a key component for a large-volume building product. Such a use may provide an alternative to storing the gas in oceanic sinks or clathrates as a way to slow the rate of global warming. The authors investigated the concept that carbon dioxide might be used with other chemicals to make carbon-dioxide-based polymers which would be lightweight, strong, and economical alternatives to some types of wood and silica-based building materials. As a construction-grade material, carbon dioxide would be fixed in a solid, useful form where it would not contribute to global warming. With the probable imposition of a fuel carbon tax in industrialized countries, this alternative would allow beneficial use of the carbon dioxide and could remove it from the tax basis if legislation were structured appropriately. Hence, there would be an economic driver towards the use of carbon-dioxide-based polymers which would enhance their future applications. Information was obtained through literature searches and personal contacts on carbon dioxide polymers which showed that the concept (1) is technically feasible, (2) is economically defensible, and (3) has an existing industrial infrastructure which could logically develop it. The technology exists for production of building materials which are strong enough for use by industry and which contain up to 90% by weight of carbon dioxide, both chemically and physically bound. A significant side-benefit of using this material would be that it is self-extinguishing in case of fire. This report is the first stage in the investigation. Further work being proposed will provide details on costs, specific applications and volumes, and potential impacts of this technology.

Molton, P.M.; Nelson, D.A.

1993-06-01T23:59:59.000Z

399

ANALYSIS OF DEVONIAN BLACK SHALES IN KENTUCKY FOR POTENTIAL CARBON DIOXIDE SEQUESTRATION AND ENHANCED NATURAL GAS PRODUCTION  

Science Conference Proceedings (OSTI)

CO{sub 2} emissions from the combustion of fossil fuels have been linked to global climate change. Proposed carbon management technologies include geologic sequestration of CO{sub 2}. A possible, but untested, sequestration strategy is to inject CO{sub 2} into organic-rich shales. Devonian black shales underlie approximately two-thirds of Kentucky and are thicker and deeper in the Illinois and Appalachian Basin portions of Kentucky than in central Kentucky. The Devonian black shales serve as both the source and trap for large quantities of natural gas; total gas in place for the shales in Kentucky is estimated to be between 63 and 112 trillion cubic feet. Most of this natural gas is adsorbed on clay and kerogen surfaces, analogous to methane storage in coal beds. In coals, it has been demonstrated that CO{sub 2} is preferentially adsorbed, displacing methane. Black shales may similarly desorb methane in the presence of CO{sub 2}. The concept that black, organic-rich Devonian shales could serve as a significant geologic sink for CO{sub 2} is the subject of current research. To accomplish this investigation, drill cuttings and cores were selected from the Kentucky Geological Survey Well Sample and Core Library. Methane and carbon dioxide adsorption analyses are being performed to determine the gas-storage potential of the shale and to identify shale facies with the most sequestration potential. In addition, sidewall core samples are being acquired to investigate specific black-shale facies, their potential CO{sub 2} uptake, and the resulting displacement of methane. Advanced logging techniques (elemental capture spectroscopy) are being investigated for possible correlations between adsorption capacity and geophysical log measurements. For the Devonian shale, average total organic carbon is 3.71 (as received) and mean random vitrinite reflectance is 1.16. Measured adsorption isotherm data range from 37.5 to 2,077.6 standard cubic feet of CO{sub 2} per ton (scf/ton) of shale. At 500 psia, adsorption capacity of the Lower Huron Member of the shale is 72 scf/ton. Initial estimates indicate a sequestration capacity of 5.3 billion tons CO{sub 2} in the Lower Huron Member of the Ohio shale in parts of eastern Kentucky and as much as 28 billion tons total in the deeper and thicker portions of the Devonian shales in Kentucky. The black shales of Kentucky could be a viable geologic sink for CO{sub 2}, and their extensive occurrence in Paleozoic basins across North America would make them an attractive regional target for economic CO{sub 2} storage and enhanced natural gas production.

Brandon C. Nuttall

2003-10-29T23:59:59.000Z

400

ANALYSIS OF DEVONIAN BLACK SHALES IN KENTUCKY FOR POTENTIAL CARBON DIOXIDE SEQUESTRATION AND ENHANCED NATURAL GAS PRODUCTION  

Science Conference Proceedings (OSTI)

CO{sub 2} emissions from the combustion of fossil fuels have been linked to global climate change. Proposed carbon management technologies include geologic sequestration of CO{sub 2}. A possible, but untested, sequestration strategy is to inject CO{sub 2} into organic-rich shales. Devonian black shales underlie approximately two-thirds of Kentucky and are thicker and deeper in the Illinois and Appalachian Basin portions of Kentucky than in central Kentucky. The Devonian black shales serve as both the source and trap for large quantities of natural gas; total gas in place for the shales in Kentucky is estimated to be between 63 and 112 trillion cubic feet. Most of this natural gas is adsorbed on clay and kerogen surfaces, analogous to methane storage in coal beds. In coals, it has been demonstrated that CO{sub 2} is preferentially adsorbed, displacing methane. Black shales may similarly desorb methane in the presence of CO{sub 2}. The concept that black, organic-rich Devonian shales could serve as a significant geologic sink for CO{sub 2} is the subject of current research. To accomplish this investigation, drill cuttings and cores were selected from the Kentucky Geological Survey Well Sample and Core Library. Methane and carbon dioxide adsorption analyses are being performed to determine the gas-storage potential of the shale and to identify shale facies with the most sequestration potential. In addition, sidewall core samples are being acquired to investigate specific black-shale facies, their potential CO{sub 2} uptake, and the resulting displacement of methane. Advanced logging techniques (elemental capture spectroscopy) are being investigated for possible correlations between adsorption capacity and geophysical log measurements. For the Devonian shale, average total organic carbon is 3.71 percent (as received) and mean random vitrinite reflectance is 1.16. Measured adsorption isotherm data range from 37.5 to 2,077.6 standard cubic feet of CO{sub 2} per ton (scf/ton) of shale. At 500 psia, adsorption capacity of the Lower Huron Member of the shale is 72 scf/ton. Initial estimates indicate a sequestration capacity of 5.3 billion tons CO{sub 2} in the Lower Huron Member of the Ohio shale in parts of eastern Kentucky and as much as 28 billion tons total in the deeper and thicker portions of the Devonian shales in Kentucky. The black shales of Kentucky could be a viable geologic sink for CO{sub 2}, and their extensive occurrence in Paleozoic basins across North America would make them an attractive regional target for economic CO{sub 2} storage and enhanced natural gas production.

Brandon C. Nuttall

2004-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "methane carbon dioxide" 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

ANALYSIS OF DEVONIAN BLACK SHALES IN KENTUCKY FOR POTENTIAL CARBON DIOXIDE SEQUESTRATION AND ENHANCED NATURAL GAS PRODUCTION  

Science Conference Proceedings (OSTI)

CO{sub 2} emissions from the combustion of fossil fuels have been linked to global climate change. Proposed carbon management technologies include geologic sequestration of CO{sub 2}. A possible, but untested, sequestration strategy is to inject CO{sub 2} into organic-rich shales. Devonian black shales underlie approximately two-thirds of Kentucky and are thicker and deeper in the Illinois and Appalachian Basin portions of Kentucky than in central Kentucky. The Devonian black shales serve as both the source and trap for large quantities of natural gas; total gas in place for the shales in Kentucky is estimated to be between 63 and 112 trillion cubic feet. Most of this natural gas is adsorbed on clay and kerogen surfaces, analogous to methane storage in coal beds. In coals, it has been demonstrated that CO{sub 2} is preferentially adsorbed, displacing methane. Black shales may similarly desorb methane in the presence of CO{sub 2}. The concept that black, organic-rich Devonian shales could serve as a significant geologic sink for CO{sub 2} is the subject of current research. To accomplish this investigation, drill cuttings and cores were selected from the Kentucky Geological Survey Well Sample and Core Library. Methane and carbon dioxide adsorption analyses are being performed to determine the gas-storage potential of the shale and to identify shale facies with the most sequestration potential. In addition, sidewall core samples are being acquired to investigate specific black-shale facies, their potential CO{sub 2} uptake, and the resulting displacement of methane. Advanced logging techniques (elemental capture spectroscopy) are being investigated for possible correlations between adsorption capacity and geophysical log measurements. For the Devonian shale, average total organic carbon is 3.71 (as received) and mean random vitrinite reflectance is 1.16. Measured adsorption isotherm data range from 37.5 to 2,077.6 standard cubic feet of CO{sub 2} per ton (scf/ton) of shale. At 500 psia, adsorption capacity of the Lower Huron Member of the shale is 72 scf/ton. Initial estimates indicate a sequestration capacity of 5.3 billion tons CO{sub 2} in the Lower Huron Member of the Ohio shale in parts of eastern Kentucky and as much as 28 billion tons total in the deeper and thicker portions of the Devonian shales in Kentucky. The black shales of Kentucky could be a viable geologic sink for CO{sub 2}, and their extensive occurrence in Paleozoic basins across North America would make them an attractive regional target for economic CO{sub 2} storage and enhanced natural gas production.

Brandon C. Nuttall

2004-01-01T23:59:59.000Z

402

Methane storage in multi-walled carbon nanotubes at the quantity of 80 g  

SciTech Connect

Methane storage in multi-walled carbon nanotubes (MWNTs) is studied at ambient temperature and pressures of 0-10.5 MPa, with a quantity of 80 g samples that were synthesized by nano-agglomerate fluidized-bed reactors (NAFBR). The volume of methane released by MWNTs was measured by volumetric method. We study the effects of purification and the pretreatments on methane storage. Results show that mixed acid treatment, alkali treatment, and mechanical shearing can obviously enhance gas uptake while high-temperature treatment can only slightly reduce it. For properly pretreated samples, an optimal 11.7% of mass storage capacity was achieved at room temperature and the pressure of 10.5 MPa, indicating that CNTs is a potential material for methane uptake.

Wu Yulong [Department of Chemical Engineering, Tsinghua University, Beijing 100084 (China); Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084 (China); Wei Fei [Department of Chemical Engineering, Tsinghua University, Beijing 100084 (China)], E-mail: wf-dce@tsinghua.edu.cn; Luo Guohua; Ning Guoqing [Department of Chemical Engineering, Tsinghua University, Beijing 100084 (China); Yang Mingde [Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084 (China)

2008-06-03T23:59:59.000Z

403

>Carbon Dioxide Emission Estimates from Fossil-Fuel Burning, Hydraulic  

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

Carbon Dioxide Emission Estimates from Fossil-Fuel Burning, Hydraulic Carbon Dioxide Emission Estimates from Fossil-Fuel Burning, Hydraulic Cement Production, and Gas Flaring for 1995 on a One Degree Grid Cell Basis (NDP-058a) Prepared by Antoinette L. Brenkert Carbon Dioxide Information Analysis Center Oak Ridge National Laboratory Oak Ridge, Tennessee 37831-6290 Date Published: February 1998 (Revised for the Web: 2003) CONTENTS Abstract Documentation file for Data Base NDP-058a (2-1998) Data Base NDP-058a (2-1998) Abstract Carbon Dioxide Emission Estimates from Fossil-Fuel Burning, Hydraulic Cement Production, and Gas Flaring for 1995 on a One Degree Grid Cell Basis. (March 1998) Antoinette L. Brenkert DOI: 10.3334/CDIAC/ffe.ndp058.2003 This data package presents the gridded (one degree latitude by one degree longitude) summed emissions from fossil-fuel burning, hydraulic cement

404

Geologic carbon dioxide sequestration from the Mexican oil industry : an action plan  

E-Print Network (OSTI)

Climate change has become an important focus of international environmental negotiations. In response, global energy corporations have been looking for practical ways of reducing their industrial carbon dioxide (CO?) ...

Lacy, Rodolfo

2005-01-01T23:59:59.000Z

405

Organoclay Sorbent for Removal of Carbon Dioxide from Gas Streams at Low Temperatures  

By incorporating amines inside clay containing quaternary ammonium salts (organoclay) minerals, this invention has created a way to prepare sorbents that capture carbon dioxide (CO2) from low temperature and low pressure gas streams. In this process, ...

406

Energy-Related Carbon Dioxide Emissions in U.S. Manufacturing  

U.S. Energy Information Administration (EIA) Indexed Site

Special Topic: Energy-Related Carbon Dioxide Emissions in U.S. Manufacturing 1 Special Topic: Energy-Related Carbon Dioxide Emissions in U.S. Manufacturing 1 Report #: DOE/EIA-0573(2005) Released Date: November 2006 Next Release Date: Not applicable Energy-Related Carbon Dioxide Emissions in U.S. Manufacturing Mark Schipper 1 , Energy Information Administration (EIA) Abstract Based on the Manufacturing Energy Consumption Survey (MECS) conducted by the U.S. Department of Energy, Energy Information Administration (EIA), this paper presents historical energy-related carbon dioxide emission estimates for energy-intensive sub-sectors and 23 industries. Estimates are based on surveys of more than 15,000 manufacturing plants in 1991, 1994, 1998, and 2002. EIA is currently developing its collection of manufacturing data for 2006.

407

DOE to Provide $36 Million to Advance Carbon Dioxide Capture | Department  

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

$36 Million to Advance Carbon Dioxide Capture $36 Million to Advance Carbon Dioxide Capture DOE to Provide $36 Million to Advance Carbon Dioxide Capture July 31, 2008 - 2:40pm Addthis WASHINGTON, DC - The U.S. Department of Energy (DOE) announced today that it will provide $36 million for 15 projects aimed at furthering the development of new and cost-effective technologies for the capture of carbon dioxide (CO2) from the existing fleet of coal-fired power plants. "Currently, the existing U.S. coal fleet accounts for over half of all electricity generated in this country," U.S. Secretary of Energy Samuel W. Bodman said. "The projects announced today will combat climate change and help meet current and future energy needs by curbing CO2 emissions from existing coal-fired plants."

408

Modern Records of Atmospheric Carbon Dioxide (CO2) and a 2000-year Ice-core  

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

Carbon Dioxide (CO2) » Ice Cores Carbon Dioxide (CO2) » Ice Cores Modern Records of Atmospheric Carbon Dioxide (CO2) and a 2000-year Ice-core Record from Law Dome, Antarctica Introduction This page provides an introduction and links to records of atmospheric carbon dioxide (CO2) concentrations over the last 2000 years, emphasizing large data bases each representing many currently active stations. Records since about 1960 (depending on location) have been obtained from samples of ambient-air at remote stations, which represent changing global atmospheric concentrations rather than influences of local sources. The longer (2000-year) record is from the Law Dome ice core in Antarctica. The ice-core record has been merged with modern annual data from Cape Grim, Tasmania to provide a 2000-year record ending with the most recent data. A

409

Solid Sorbents for Removal of Carbon Dioxide from Gas Streams at Low Temperatures  

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

Sorbents for Removal of Carbon Dioxide from Sorbents for Removal of Carbon Dioxide from Gas Streams at Low Temperatures Opportunity The Department of Energy's National Energy Technology Laboratory is seeking licensing partners interested in implementing United States Patent Number 6,908,497 entitled "Solid Sorbents for Removal of Carbon Dioxide from Gas Streams at Low Temperatures." Disclosed in this patent is a new low-cost carbon dioxide (CO 2 ) sorbent that can be used in large-scale gas-solid processes. Researchers have developed a new method to prepare these sorbents by treating substrates with an amine and/or an ether in a way that either one comprises at least 50 weight percent of the sorbent. The sorbent captures compounds contained in gaseous fluids through chemisorptions and/or

410

Transient Response of a Global Ocean-Atmosphere Model to a Doubling of Atmospheric Carbon Dioxide  

Science Conference Proceedings (OSTI)

The transient response of climate to an instantaneous increase in the atmospheric concentration of carbon dioxide has been investigated by a general circulation model of the coupled ocean-atmosphere-land system with global geography and annual ...

Syukuro Manabe; Kirk Bryan; Michael J. Spelman

1990-05-01T23:59:59.000Z

411

The Predictive Uncertainty of Land Surface Fluxes in Response to Increasing Ambient Carbon Dioxide  

Science Conference Proceedings (OSTI)

The exchange of water vapor and carbon dioxide (CO2) between the land surface and the atmosphere plays an important role in numerical weather forecasting and climate change prediction using general circulation models. In this study, a typical ...

Karsten Schulz; Andrew Jarvis; Keith Beven; Henrik Soegaard

2001-06-01T23:59:59.000Z

412

Figure 111. Energy-related carbon dioxide emissions in three cases ...  

U.S. Energy Information Administration (EIA)

Sheet3 Sheet2 Sheet1 Figure 111. Energy-related carbon dioxide emissions in three cases with three levels of emissions fees, 2000-2040 (million metric tons)

413

Appendix B: CArBon dioxide CApture teChnology SheetS  

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

teChnology uPDate, may 2013 eleCtroChemiCal membrane for Carbon DioxiDe CaPture & Power generation primary project goals FuelCell Energy, Inc. (FCE) is developing an...

414

Appendix B: CArBon dioxide CApture teChnology SheetS  

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

of the development of an advanced chemical looping combustion (CLC) system for coal-fired power generation that removes greater than 90 percent of the carbon dioxide (CO 2 ) with a...

415

Carbon dioxide capture from coal-fired power plants : a real potions analysis  

E-Print Network (OSTI)

Investments in three coal-fired power generation technologies are valued using the "real options" valuation methodology in an uncertain carbon dioxide (CO2) price environment. The technologies evaluated are pulverized coal ...

Sekar, Ram Chandra

2005-01-01T23:59:59.000Z

416

An Exploration of the Effect of Temperature on Different Alloys in a Supercritical Carbon Dioxide Environment  

E-Print Network (OSTI)

In the constant effort to increase efficiency, safety margins, and lower cost, a new breed of nuclear reactors, Generation IV, is being developed in which supercritical carbon dioxide (SCO?) is a prime coolant candidate. ...

Dunlevy, Michael William

2009-01-01T23:59:59.000Z

417

Large-Scale Changes of Soil Wetness Induced by an Increase in Atmospheric Carbon Dioxide  

Science Conference Proceedings (OSTI)

The change in soil wetness in response to an increase of atmospheric concentration of carbon dioxide is investigated by two versions of a climate model which consists of a general circulation model of the atmosphere and a static mixed layer ...

S. Manabe; R. T. Wetherald

1987-04-01T23:59:59.000Z

418

Study of Supercritical Carbon Dioxide Power Cycle for Low Grade Heat Conversion  

Science Conference Proceedings (OSTI)

Research on supercritical carbon dioxide power cycles has been mainly focused on high temperature applications, such as Brayton cycle in a nuclear power plant. This paper conducts a comprehensive study on the feasibility of a CO2-based supercritical power cycle for low-grade heat conversion. Energy and exergy analyses of the cycle were conducted to discuss the obstacles as well as the potentials of using supercritical carbon dioxide as the working fluid for supercritical Rankine cycle, Carbon dioxide has desirable qualities such as low critical temperature, stability, little environmental impact and low cost. However, the low critical temperature might be a disadvantage for the condensation process. Comparison between a carbon dioxide-based supercritical Rankine cycle and an organic fluid-based supercritical Rankine cycle showed that the former needs higher pressure to achieve the same efficiency and a heat recovery system is necessary to desuperheat the turbine exhaust and pre-heat the pressure charged liquid.

Vidhi, Rachana [University of South Florida, Tampa; Goswami, Yogi D. [University of South Florida, Tampa; Chen, Huijuan [University of South Florida, Tampa; Stefanakos, Elias [University of South Florida, Tampa; Kuravi, Sarada [University of South Florida, Tampa; Sabau, Adrian S [ORNL

2011-01-01T23:59:59.000Z

419

Method for sizing and desizing yarns with liquid and supercritical carbon dioxide solvent  

DOE Patents (OSTI)

Disclosed is a method of sizing and desizing yarn, or more specifically to a method of coating yarn with size and removing size from yarn with liquid carbon dioxide solvent. 3 figs.

Fulton, J.L.; Yonker, C.R.; Hallen, R.R.; Baker, E.G.; Bowman, L.E.; Silva, L.J.

1999-01-26T23:59:59.000Z

420

Venting of Heat and Carbon Dioxide from Urban Canyons at Night  

Science Conference Proceedings (OSTI)

Turbulent fluxes of carbon dioxide and sensible heat were observed in the surface layer of the weakly convective nocturnal boundary layer over the center of the city of Marseille, France, during the Expérience sur Sites pour Contraindre les ...

J. A. Salmond; T. R. Oke; C. S. B. Grimmond; S. Roberts; B. Offerle

2005-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "methane carbon dioxide" 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

Power conversion system design for supercritical carbon dioxide cooled indirect cycle nuclear reactors  

E-Print Network (OSTI)

The supercritical carbon dioxide (S-CO?) cycle is a promising advanced power conversion cycle which couples nicely to many Generation IV nuclear reactors. This work investigates the power conversion system design and ...

Gibbs, Jonathan Paul

2008-01-01T23:59:59.000Z

422

Tools for supercritical carbon dioxide cycle analysis and the cycle's applicability to sodium fast reactors  

E-Print Network (OSTI)

The Sodium-Cooled Fast Reactor (SFR) and the Supercritical Carbon Dioxide (S-C0?) Recompression cycle are two technologies that have the potential to impact the power generation landscape of the future. In order for their ...

Ludington, Alexander R. (Alexander Rockwell)

2009-01-01T23:59:59.000Z

423

Method for sizing and desizing yarns with liquid and supercritical carbon dioxide solvent  

DOE Patents (OSTI)

Disclosed is a method of sizing and desizing yarn, or more specifically to a method of coating yarn with size and removing size from yarn with liquid carbon dioxide solvent.

Fulton, John L. (Richland, WA); Yonker, Clement R. (Richland, WA); Hallen, Richard R. (Richland, WA); Baker, Eddie G. (Richland, WA); Bowman, Lawrence E. (Richland, WA); Silva, Laura J. (Richland, WA)

1999-01-01T23:59:59.000Z

424

Improving the Carbon Dioxide Emission Estimates from the Combustion of Fossil Fuels in California  

E-Print Network (OSTI)

Can the envisaged reductions of fossil fuel CO2 emissions beGoulden. 2008. Where do Fossil Fuel Carbon Dioxide Emissionsof season-averaged fossil fuel CO 2 emissions (Riley et

de la Rue du Can, Stephane

2010-01-01T23:59:59.000Z

425

How much carbon dioxide (CO 2 ) is produced per kilowatt-hour ...  

U.S. Energy Information Administration (EIA)

How much carbon dioxide (CO 2) is produced per kilowatt-hour when generating electricity with fossil fuels? You can calculate the amount of CO2 produced per kWh for ...

426

NETL: News Release - DOE/NETL Carbon Dioxide Capture and Storage...  

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

6, 2011 DOENETL Carbon Dioxide Capture and Storage RD&D Roadmap Provides Overview of RD&D Efforts to Provide Cost-Effective Advanced CO2 Capture and Storage Technologies for...

427

Contrasting Regional Responses to Increasing Leaf-Level Atmospheric Carbon Dioxide over Australia  

Science Conference Proceedings (OSTI)

Using a coupled atmosphere–land surface model, simulations were conducted to characterize the regional climate changes that result from the response of stomates to increases in leaf-level carbon dioxide (CO2) under differing conditions of ...

Faye T. Cruz; Andrew J. Pitman; John L. McGregor; Jason P. Evans

2010-04-01T23:59:59.000Z

428

Energy-related carbon dioxide emissions down in 2011 - Today in ...  

U.S. Energy Information Administration (EIA)

Annual energy-related carbon dioxide (CO 2) emissions fell 2.4% in 2011 compared to the level in 2010. Several factors combined to produce this drop, including slower ...

429

Stratospheric Sensitivity to Perturbations in Ozone and Carbon Dioxide: Radiative and Dynamical Response  

Science Conference Proceedings (OSTI)

We have attempted to assess the stratospheric effects of two different perturbations: 1) a uniform 50% reduction in ozone; and 2) a uniform doubling of carbon dioxide. The primary studies employ an annual mean insulation version of the recently ...

S. B. Fels; J. D. Mahlman; M. D. Schwarzkopf; R. W. Sinclair

1980-10-01T23:59:59.000Z

430

The Smart Grid: An Estimation of the Energy and Carbon Dioxide...  

Open Energy Info (EERE)

Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon The Smart Grid: An Estimation of the Energy and Carbon Dioxide (CO2) Benefits Jump to:...

431

Methane Decomposition: Production of Hydrogen and Carbon Filaments  

E-Print Network (OSTI)

) is an obvious source for hydrogen. Steam reforming of methane represents the current trend for hydrogen. The process required to eliminate CO from the hydrogen produced in the steam reformer is briefly described below. The steam reformer products containing B10% CO (depending on the feedstock and conditions

Goodman, Wayne

432

CALCIUM CARBONATE PRODUCTION BY COCCOLITHOPHORID ALGAE IN LONG TERM CARBON DIOXIDE SEQUESTRATION  

DOE Green Energy (OSTI)

Predictions of increasing levels of anthropogenic carbon dioxide (CO{sub 2}) and the specter of global warming have intensified research efforts to identify ways to sequester carbon. A number of novel avenues of research are being considered, including bioprocessing methods to promote and accelerate biosequestration of CO{sub 2} from the environment through the growth of organisms such as coccolithophorids, which are capable of sequestering CO{sub 2} relatively permanently. Calcium and magnesium carbonates are currently the only proven, long-term storage reservoirs for carbon. Whereas organic carbon is readily oxidized and releases CO{sub 2} through microbial decomposition on land and in the sea, carbonates can sequester carbon over geologic time scales. This proposal investigates the use of coccolithophorids--single-celled, marine algae that are the major global producers of calcium carbonate--to sequester CO{sub 2} emissions from power plants. Cultivation of coccolithophorids for calcium carbonate (CaCO{sub 3}) precipitation is environmentally benign and results in a stable product with potential commercial value. Because this method of carbon sequestration does not impact natural ecosystem dynamics, it avoids controversial issues of public acceptability and legality associated with other options such as direct injection of CO{sub 2} into the sea and ocean fertilization. Consequently, cultivation of coccolithophorids could be carried out immediately and the amount of carbon sequestered as CaCO{sub 3} could be readily quantified. The significant advantages of this approach warrant its serious investigation. The major goals of the proposed research are to identify the growth conditions that will result in the maximum amount of CO{sub 2} sequestration through coccolithophorid calcite production and to evaluate the costs/benefits of using coccolithophorid cultivation ponds or bioreactors to abate CO{sub 2} emissions from power plants.

V. J. Fabry

2003-10-30T23:59:59.000Z

433

CALCIUM CARBONATE PRODUCTION BY COCCOLITHOPHORID ALGAE IN LONG TERM, CARBON DIOXIDE SEQUESTRATION  

DOE Green Energy (OSTI)

Predictions of increasing levels of anthropogenic carbon dioxide (CO{sub 2}) and the specter of global warming have intensified research efforts to identify ways to sequester carbon. A number of novel avenues of research are being considered, including bioprocessing methods to promote and accelerate biosequestration of CO{sub 2} from the environment through the growth of organisms such as coccolithophorids, which are capable of sequestering CO{sub 2} relatively permanently. Calcium and magnesium carbonates are currently the only proven, long-term storage reservoirs for carbon. Whereas organic carbon is readily oxidized and releases CO{sub 2} through microbial decomposition on land and in the sea, carbonates can sequester carbon over geologic time scales. This proposal investigates the use of coccolithophorids--single-celled, marine algae that are the major global producers of calcium carbonate--to sequester CO{sub 2} emissions from power plants. Cultivation of coccolithophorids for calcium carbonate (CaCO{sub 3}) precipitation is environmentally benign and results in a stable product with potential commercial value. Because this method of carbon sequestration does not impact natural ecosystem dynamics, it avoids controversial issues of public acceptability and legality associated with other options such as direct injection of CO{sub 2} into the sea and ocean fertilization. Consequently, cultivation of coccolithophorids could be carried out immediately and the amount of carbon sequestered as CaCO{sub 3} could be readily quantified. The significant advantages of this approach warrant its serious investigation. The major goals of the proposed research are to identify the growth conditions that will result in the maximum amount of CO{sub 2} sequestration through coccolithophorid calcite production and to evaluate the costs/benefits of using coccolithophorid cultivation ponds or bioreactors to abate CO{sub 2} emissions from power plants.

V.J. Fabry

2004-10-30T23:59:59.000Z

434

CALCIUM CARBONATE PRODUCTION BY COCCOLITHAPHORID ALGAE IN LONG TERM, CARBON DIOXIDE SEQUESTRATION  

SciTech Connect

Predictions of increasing levels of anthropogenic carbon dioxide (CO{sub 2}) and the specter of global warming have intensified research efforts to identify ways to sequester carbon. A number of novel avenues of research are being considered, including bioprocessing methods to promote and accelerate biosequestration of CO{sub 2} from the environment through the growth of organisms such as coccolithophorids, which are capable of sequestering CO{sub 2} relatively permanently. Calcium and magnesium carbonates are currently the only proven, long-term storage reservoirs for carbon. Whereas organic carbon is readily oxidized and releases CO{sub 2} through microbial decomposition on land and in the sea, carbonates can sequester carbon over geologic time scales. This proposal investigates the use of coccolithophorids--single-celled, marine algae that are the major global producers of calcium carbonate--to sequester CO{sub 2} emissions from power plants. Cultivation of coccolithophorids for calcium carbonate (CaCO{sub 3}) precipitation is environmentally benign and results in a stable product with potential commercial value. Because this method of carbon sequestration does not impact natural ecosystem dynamics, it avoids controversial issues of public acceptability and legality associated with other options such as direct injection of CO{sub 2} into the sea and ocean fertilization. Consequently, cultivation of coccolithophorids could be carried out immediately and the amount of carbon sequestered as CaCO{sub 3} could be readily quantified. The significant advantages of this approach warrant its serious investigation. The major goals of the proposed research are to identify the growth conditions that will result in the maximum amount of CO{sub 2} sequestration through coccolithophorid calcite production and to evaluate the costs/benefits of using coccolithophorid cultivation ponds to abate CO{sub 2} emissions from power plants.

V. J.Fabry

2004-01-30T23:59:59.000Z

435

CALCIUM CARBONATE PRODUCTION BY COCCOLITHOPHORID ALGAE IN LONG TERM, CARBON DIOXIDE SEQUESTRATION  

SciTech Connect

Predictions of increasing levels of anthropogenic carbon dioxide (CO{sub 2}) and the specter of global warming have intensified research efforts to identify ways to sequester carbon. A number of novel avenues of research are being considered, including bioprocessing methods to promote and accelerate biosequestration of CO{sub 2} from the environment through the growth of organisms such as coccolithophorids, which are capable of sequestering CO{sub 2} relatively permanently. Calcium and magnesium carbonates are currently the only proven, long-term storage reservoirs for carbon. Whereas organic carbon is readily oxidized and releases CO{sub 2} through microbial decomposition on land and in the sea, carbonates can sequester carbon over geologic time scales. This proposal investigates the use of coccolithophorids--single-celled, marine algae that are the major global producers of calcium carbonate--to sequester CO{sub 2} emissions from power plants. Cultivation of coccolithophorids for calcium carbonate (CaCO{sub 3}) precipitation is environmentally benign and results in a stable product with potential commercial value. Because this method of carbon sequestration does not impact natural ecosystem dynamics, it avoids controversial issues of public acceptability and legality associated with other options such as direct injection of CO{sub 2} into the sea and ocean fertilization. Consequently, cultivation of coccolithophorids could be carried out immediately and the amount of carbon sequestered as CaCO{sub 3} could be readily quantified. The significant advantages of this approach warrant its serious investigation. The major goals of the proposed research are to identify the growth conditions that will result in the maximum amount of CO{sub 2} sequestration through coccolithophorid calcite production and to evaluate the costs/benefits of using coccolithophorid cultivation ponds to abate CO{sub 2} emissions from power plants.

V.J. Fabry, Ph.D.

2001-12-15T23:59:59.000Z

436

CALCIUM CARBONATE PRODUCTION BY COCCOLITHOPHORID ALGAE IN LONG TERM, CARBON DIOXIDE SEQUESTRATION  

SciTech Connect

Predictions of increasing levels of anthropogenic carbon dioxide (CO{sub 2}) and the specter of global warming have intensified research efforts to identify ways to sequester carbon. A number of novel avenues of research are being considered, including bioprocessing methods to promote and accelerate biosequestration of CO{sub 2} from the environment through the growth of organisms such as coccolithophorids, which are capable of sequestering CO{sub 2} relatively permanently. Calcium and magnesium carbonates are currently the only proven, long-term storage reservoirs for carbon. Whereas organic carbon is readily oxidized and releases CO{sub 2} through microbial decomposition on land and in the sea, carbonates can sequester carbon over geologic time scales. This proposal investigates the use of coccolithophorids--single-celled, marine algae that are the major global producers of calcium carbonate--to sequester CO{sub 2} emissions from power plants. Cultivation of coccolithophorids for calcium carbonate (CaCO{sub 3}) precipitation is environmentally benign and results in a stable product with potential commercial value. Because this method of carbon sequestration does not impact natural ecosystem dynamics, it avoids controversial issues of public acceptability and legality associated with other options such as direct injection of CO{sub 2} into the sea and ocean fertilization. Consequently, cultivation of coccolithophorids could be carried out immediately and the amount of carbon sequestered as CaCO{sub 3} could be readily quantified. The significant advantages of this approach warrant its serious investigation. The major goals of the proposed research are to identify the growth conditions that will result in the maximum amount of CO{sub 2} sequestration through coccolithophorid calcite production and to evaluate the costs/benefits of using coccolithophorid cultivation ponds to abate CO{sub 2} emissions from power plants.

V.J. Fabry, Ph.D.

2003-07-15T23:59:59.000Z

437

CALCIUM CARBONATE PRODUCTION BY COCCOLITHOPHORID ALGAE IN LONG TERM, CARBON DIOXIDE SEQUESTRATION  

SciTech Connect

Predictions of increasing levels of anthropogenic carbon dioxide (CO{sub 2}) and the specter of global warming have intensified research efforts to identify ways to sequester carbon. A number of novel avenues of research are being considered, including bioprocessing methods to promote and accelerate biosequestration of CO{sub 2} from the environment through the growth of organisms such as coccolithophorids, which are capable of sequestering CO{sub 2} relatively permanently. Calcium and magnesium carbonates are currently the only proven, long-term storage reservoirs for carbon. Whereas organic carbon is readily oxidized and releases CO{sub 2} through microbial decomposition on land and in the sea, carbonates can sequester carbon over geologic time scales. This proposal investigates the use of coccolithophorids--single-celled, marine algae that are the major global producers of calcium carbonate--to sequester CO{sub 2} emissions from power plants. Cultivation of coccolithophorids for calcium carbonate (CaCO{sub 3}) precipitation is environmentally benign and results in a stable product with potential commercial value. Because this method of carbon sequestration does not impact natural ecosystem dynamics, it avoids controversial issues of public acceptability and legality associated with other options such as direct injection of CO{sub 2} into the sea and ocean fertilization. Consequently, cultivation of coccolithophorids could be carried out immediately and the amount of carbon sequestered as CaCO{sub 3} could be readily quantified. The significant advantages of this approach warrant its serious investigation. The major goals of the proposed research are to identify the growth conditions that will result in the maximum amount of CO{sub 2} sequestration through coccolithophorid calcite production and to evaluate the costs/benefits of using coccolithophorid cultivation ponds to abate CO{sub 2} emissions from power plants.

V.J. Fabry, Ph.D.

2001-09-10T23:59:59.000Z

438

CALCIUM CARBONATE PRODUCTION BY COCCOLITHOPHORID ALGAE IN LONG TERM, CARBON DIOXIDE SEQUESTRATION  

SciTech Connect

Predictions of increasing levels of anthropogenic carbon dioxide (CO{sub 2}) and the specter of global warming have intensified research efforts to identify ways to sequester carbon. A number of novel avenues of research are being considered, including bioprocessing methods to promote and accelerate biosequestration of CO{sub 2} from the environment through the growth of organisms such as coccolithophorids, which are capable of sequestering CO{sub 2} relatively permanently. Calcium and magnesium carbonates are currently the only proven, long-term storage reservoirs for carbon. Whereas organic carbon is readily oxidized and releases CO{sub 2} through microbial decomposition on land and in the sea, carbonates can sequester carbon over geologic time scales. This proposal investigates the use of coccolithophorids--single-celled, marine algae that are the major global producers of calcium carbonate--to sequester CO{sub 2} emissions from power plants. Cultivation of coccolithophorids for calcium carbonate (CaCO{sub 3}) precipitation is environmentally benign and results in a stable product with potential commercial value. Because this method of carbon sequestration does not impact natural ecosystem dynamics, it avoids controversial issues of public acceptability and legality associated with other options such as direct injection of CO{sub 2} into the sea and ocean fertilization. Consequently, cultivation of coccolithophorids could be carried out immediately and the amount of carbon sequestered as CaCO{sub 3} could be readily quantified. The significant advantages of this approach warrant its serious investigation. The major goals of the proposed research are to identify the growth conditions that will result in the maximum amount of CO{sub 2} sequestration through coccolithophorid calcite production and to evaluate the costs/benefits of using coccolithophorid cultivation ponds to abate CO{sub 2} emissions from power plants.

V.J. Fabry, Ph.D.

2003-04-15T23:59:59.000Z

439

Calcium Carbonate Production by Coccolithophorid Algae in Long Term, Carbon Dioxide Sequestration  

SciTech Connect

Predictions of increasing levels of anthropogenic carbon dioxide (CO{sub 2}) and the specter of global warming have intensified research efforts to identify ways to sequester carbon. A number of novel avenues of research are being considered, including bioprocessing methods to promote and accelerate biosequestration of CO{sub 2} from the environment through the growth of organisms such as coccolithophorids, which are capable of sequestering CO{sub 2} relatively permanently. Calcium and magnesium carbonates are currently the only proven, long-term storage reservoirs for carbon. Whereas organic carbon is readily oxidized and releases CO{sub 2} through microbial decomposition on land and in the sea, carbonates can sequester carbon over geologic time scales. This proposal investigates the use of coccolithophorids--single-celled, marine algae that are the major global producers of calcium carbonate--to sequester CO{sub 2} emissions from power plants. Cultivation of coccolithophorids for calcium carbonate (CaCO{sub 3}) precipitation is environmentally benign and results in a stable product with potential commercial value. Because this method of carbon sequestration does not impact natural ecosystem dynamics, it avoids controversial issues of public acceptability and legality associated with other options such as direct injection of CO{sub 2} into the sea and ocean fertilization. Consequently, cultivation of coccolithophorids could be carried out immediately and the amount of carbon sequestered as CaCO{sub 3} could be readily quantified. The significant advantages of this approach warrant its serious investigation. The major goals of the proposed research are to identify the growth conditions that will result in the maximum amount of CO{sub 2} sequestration through coccolithophorid calcite production and to evaluate the costs/benefits of using coccolithophorid cultivation ponds to abate CO{sub 2} emissions from power plants.

V.J. Fabry

2005-04-29T23:59:59.000Z

440

CALCIUM CARBONATE PRODUCTION BY COCCOLITHOPHORID ALGAE IN LONG TERM, CARBON DIOXIDE SEQUESTRATION  

SciTech Connect

Predictions of increasing levels of anthropogenic carbon dioxide (CO{sub 2}) and the specter of global warming have intensified research efforts to identify ways to sequester carbon. A number of novel avenues of research are being considered, including bioprocessing methods to promote and accelerate biosequestration of CO{sub 2} from the environment through the growth of organisms such as coccolithophorids, which are capable of sequestering CO{sub 2} relatively permanently. Calcium and magnesium carbonates are currently the only proven, long-term storage reservoirs for carbon. Whereas organic carbon is readily oxidized and releases CO{sub 2} through microbial decomposition on land and in the sea, carbonates can sequester carbon over geologic time scales. This proposal investigates the use of coccolithophorids--single-celled, marine algae that are the major global producers of calcium carbonate--to sequester CO{sub 2} emissions from power plants. Cultivation of coccolithophorids for calcium carbonate (CaCO{sub 3}) precipitation is environmentally benign and results in a stable product with potential commercial value. Because this method of carbon sequestration does not impact natural ecosystem dynamics, it avoids controversial issues of public acceptability and legality associated with other options such as direct injection of CO{sub 2} into the sea and ocean fertilization. Consequently, cultivation of coccolithophorids could be carried out immediately and the amount of carbon sequestered as CaCO{sub 3} could be readily quantified. The significant advantages of this approach warrant its serious investigation. The major goals of the proposed research are to identify the growth conditions that will result in the maximum amount of CO{sub 2} sequestration through coccolithophorid calcite production and to evaluate the costs/benefits of using coccolithophorid cultivation ponds to abate CO{sub 2} emissions from power plants.

V.J. Fabry, Ph.D.

2002-12-15T23:59:59.000Z

Note: This page contains sample records for the topic "methane carbon dioxide" 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
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441

Calcium Carbonate Production by Coccolithophorid Algae in Long Term, Carbon Dioxide Sequestration  

SciTech Connect

Predictions of increasing levels of anthropogenic carbon dioxide (CO{sub 2}) and the specter of global warming have intensified research efforts to identify ways to sequester carbon. A number of novel avenues of research are being considered, including bioprocessing methods to promote and accelerate biosequestration of CO{sub 2} from the environment through the growth of organisms such as coccolithophorids, which are capable of sequestering CO{sub 2} relatively permanently. Calcium and magnesium carbonates are currently the only proven, long-term storage reservoirs for carbon. Whereas organic carbon is readily oxidized and releases CO{sub 2} through microbial decomposition on land and in the sea, carbonates can sequester carbon over geologic time scales. This proposal investigates the use of coccolithophorids--single-celled, marine algae that are the major global producers of calcium carbonate--to sequester CO{sub 2} emissions from power plants. Cultivation of coccolithophorids for calcium carbonate (CaCO{sub 3}) precipitation is environmentally benign and results in a stable product with potential commercial value. Because this method of carbon sequestration does not impact natural ecosystem dynamics, it avoids controversial issues of public acceptability and legality associated with other options such as direct injection of CO{sub 2} into the sea and ocean fertilization. Consequently, cultivation of coccolithophorids could be carried out immediately and the amount of carbon sequestered as CaCO{sub 3} could be readily quantified. The significant advantages of this approach warrant its serious investigation. The major goals of the proposed research are to identify the growth conditions that will result in the maximum amount of CO{sub 2} sequestration through coccolithophorid calcite production and to evaluate the costs/benefits of using coccolithophorid cultivation ponds to abate CO{sub 2} emissions from power plants.

V. J. Fabry

2006-06-30T23:59:59.000Z

442

CALCIUM CARBONATE PRODUCTION BY COCCOLITHOPHORID ALGAE IN LONG TERM, CARBON DIOXIDE SEQUESTRATION  

SciTech Connect

Predictions of increasing levels of anthropogenic carbon dioxide (CO{sub 2}) and the specter of global warming have intensified research efforts to identify ways to sequester carbon. A number of novel avenues of research are being considered, including bioprocessing methods to promote and accelerate biosequestration of CO{sub 2} from the environment through the growth of organisms such as coccolithophorids, which are capable of sequestering CO{sub 2} relatively permanently. Calcium and magnesium carbonates are currently the only proven, long-term storage reservoirs for carbon. Whereas organic carbon is readily oxidized and releases CO{sub 2} through microbial decomposition on land and in the sea, carbonates can sequester carbon over geologic time scales. This proposal investigates the use of coccolithophorids--single-celled, marine algae that are the major global producers of calcium carbonate--to sequester CO{sub 2} emissions from power plants. Cultivation of coccolithophorids for calcium carbonate (CaCO{sub 3}) precipitation is environmentally benign and results in a stable product with potential commercial value. Because this method of carbon sequestration does not impact natural ecosystem dynamics, it avoids controversial issues of public acceptability and legality associated with other options such as direct injection of CO{sub 2} into the sea and ocean fertilization. Consequently, cultivation of coccolithophorids could be carried out immediately and the amount of carbon sequestered as CaCO{sub 3} could be readily quantified. The significant advantages of this approach warrant its serious investigation. The major goals of the proposed research are to identify the growth conditions that will result in the maximum amount of CO{sub 2} sequestration through coccolithophorid calcite production and to evaluate the costs/benefits of using coccolithophorid cultivation ponds to abate CO{sub 2} emissions from power plants.

V.J. Fabry, Ph.D.

2002-07-09T23:59:59.000Z

443

CALCIUM CARBONATE PRODUCTION BY COCCOLITHOPHORID ALGAE IN LONG TERM, CARBON DIOXIDE SEQUESTRATION  

SciTech Connect

Predictions of increasing levels of anthropogenic carbon dioxide (CO{sub 2}) and the specter of global warming have intensified research efforts to identify ways to sequester carbon. A number of novel avenues of research are being considered, including bioprocessing methods to promote and accelerate biosequestration of CO{sub 2} from the environment through the growth of organisms such as coccolithophorids, which are capable of sequestering CO{sub 2} relatively permanently. Calcium and magnesium carbonates are currently the only proven, long-term storage reservoirs for carbon. Whereas organic carbon is readily oxidized and releases CO{sub 2} through microbial decomposition on land and in the sea, carbonates can sequester carbon over geologic time scales. This proposal investigates the use of coccolithophorids ? single-celled, marine algae that are the major global producers of calcium carbonate ? to sequester CO{sub 2} emissions from power plants. Cultivation of coccolithophorids for calcium carbonate (CaCO{sub 3}) precipitation is environmentally benign and results in a stable product with potential commercial value. Because this method of carbon sequestration does not impact natural ecosystem dynamics, it avoids controversial issues of public acceptability and legality associated with other options such as direct injection of CO{sub 2} into the sea and ocean fertilization. Consequently, cultivation of coccolithophorids could be carried out immediately and the amount of carbon sequestered as CaCO{sub 3} could be readily quantified. The significant advantages of this approach warrant its serious investigation. The major goals of the proposed research are to identify the growth conditions that will result in the maximum amount of CO{sub 2} sequestration through coccolithophorid calcite production and to evaluate the costs/benefits of using coccolithophorid cultivation ponds to abate CO{sub 2} emissions from power plants.

V. J. Fabry

2005-01-24T23:59:59.000Z

444

CALCIUM CARBONATE PRODUCTION BY COCCOLITHOPHORID ALGAE IN LONG TERM, CARBON DIOXIDE SEQUESTRATION  

SciTech Connect

Predictions of increasing levels of anthropogenic carbon dioxide (CO{sub 2}) and the specter of global warming have intensified research efforts to identify ways to sequester carbon. A number of novel avenues of research are being considered, including bioprocessing methods to promote and accelerate biosequestration of CO{sub 2} from the environment through the growth of organisms such as coccolithophorids, which are capable of sequestering CO{sub 2} relatively permanently. Calcium and magnesium carbonates are currently the only proven, long-term storage reservoirs for carbon. Whereas organic carbon is readily oxidized and releases CO{sub 2} through microbial decomposition on land and in the sea, carbonates can sequester carbon over geologic time scales. This proposal investigates the use of coccolithophorids single-celled, marine algae that are the major global producers of calcium carbonate to sequester CO{sub 2} emissions from power plants. Cultivation of coccolithophorids for calcium carbonate (CaCO{sub 3}) precipitation is environmentally benign and results in a stable product with potential commercial value. Because this method of carbon sequestration does not impact natural ecosystem dynamics, it avoids controversial issues of public acceptability and legality associated with other options such as direct injection of CO{sub 2} into the sea and ocean fertilization. Consequently, cultivation of coccolithophorids could be carried out immediately and the amount of carbon sequestered as CaCO{sub 3} could be readily quantified. The significant advantages of this approach warrant its serious investigation. The major goals of the proposed research are to identify the growth conditions that will result in the maximum amount of CO{sub 2} sequestration through coccolithophorid calcite production and to evaluate the costs/benefits of using coccolithophorid cultivation ponds to abate CO{sub 2} emissions from power plants.

V.J. Fabry

2001-07-01T23:59:59.000Z

445

CALCIUM CARBONATE PRODUCTION BY COCCOLITHOPHORID ALGAE IN LONG TERM, CARBON DIOXIDE SEQUESTRATION  

SciTech Connect

Predictions of increasing levels of anthropogenic carbon dioxide (CO{sub 2}) and the specter of global warming have intensified research efforts to identify ways to sequester carbon. A number of novel avenues of research are being considered, including bioprocessing methods to promote and accelerate biosequestration of CO{sub 2} from the environment through the growth of organisms such as coccolithophorids, which are capable of sequestering CO{sub 2} relatively permanently. Calcium and magnesium carbonates are currently the only proven, long-term storage reservoirs for carbon. Whereas organic carbon is readily oxidized and releases CO{sub 2} through microbial decomposition on land and in the sea, carbonates can sequester carbon over geologic time scales. This proposal investigates the use of coccolithophorids--single-celled, marine algae that are the major global producers of calcium carbonate--to sequester CO{sub 2} emissions from power plants. Cultivation of coccolithophorids for calcium carbonate (CaCO{sub 3}) precipitation is environmentally benign and results in a stable product with potential commercial value. Because this method of carbon sequestration does not impact natural ecosystem dynamics, it avoids controversial issues of public acceptability and legality associated with other options such as direct injection of CO{sub 2} into the sea and ocean fertilization. Consequently, cultivation of coccolithophorids could be carried out immediately and the amount of carbon sequestered as CaCO{sub 3} could be readily quantified. The significant advantages of this approach warrant its serious investigation. The major goals of the proposed research are to identify the growth conditions that will result in the maximum amount of CO{sub 2} sequestration through coccolithophorid calcite production and to evaluate the costs/benefits of using coccolithophorid cultivation ponds to abate CO{sub 2} emissions from power plants.

V.J. Fabry, Ph.D.

2002-04-05T23:59:59.000Z

446

Carbon Dioxide, Hydrographic, and Chemical Data Obtained in the South  

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

South Pacific Ocean (WOCE Section P16A/P17A, P17E/P19S, and P19C, R/V Knorr, October 1992-April 1993) South Pacific Ocean (WOCE Section P16A/P17A, P17E/P19S, and P19C, R/V Knorr, October 1992-April 1993) NDP-065 (1998) data Download the Data and ASCII Documentation files of NDP-065 PDF Download a PDF of NDP-065 image Contributed by Stephany Rubin,* John G. Goddard,* David W. Chipman,* Taro Takahashi,* Stewart C. Sutherland,* Joseph L. Reid,* James H. Swift,** and Lynne D. Talley** *Lamont-Doherty Earth Observatory Columbia University Palisades, New York **Scripps Institution of Oceanography University of California, San Diego La Jolla, California Prepared by Alexander Kozyr Carbon Dioxide Information Analysis Center Oak Ridge National Laboratory Oak Ridge, Tennessee, U.S.A. Abstract Contents Part 1: Overview Background Information Description of the Expeditions WOCE Section P16A/P17A

447

Gasification combined cycle: Carbon dioxide recovery, transport, and disposal  

SciTech Connect

Initiatives to limit carbon dioxide (CO[sub 2]) emissions have drawn considerable interest to integrated gasification combined-cycle (IGCC) power generation. This process can reduce C0[sub 2] production because of its higher efficiency, and it is amenable to C0[sub 2] capture, because C0[sub 2] can be removed before combustion and the associated dilution with atmospheric nitrogen. This paper presents a process-design baseline that encompasses the IGCC system, C0[sub 2] transport by pipeline, and land-based sequestering of C0[sub 2] in geological reservoirs.The intent of this study is to provide the C0[sub 2] budget, or an equivalent C0[sub 2]'' budget, associated with each of the individual energy-cycle steps. Design capital and operating costs for the process are included in the full study but are not reported in the present paper. The value used for the equivalent C0[sub 2]'' budget will be 1 kg C0[sub 2]/kWh[sub e].

Doctor, R.D.; Molburg, J.C.; Thimmapuram, P.; Berry, G.F.; Livengood, C.D. (Argonne National Lab., IL (United States)); Johnson, R.A. (USDOE Morgantown Energy Technology Center, WV (United States))

1993-01-01T23:59:59.000Z

448

Gasification combined cycle: Carbon dioxide recovery, transport, and disposal  

SciTech Connect

Initiatives to limit carbon dioxide (CO[sub 2]) emissions have drawn considerable interest to integrated gasification combined-cycle (IGCC) power generation. This process can reduce C0[sub 2] production because of its higher efficiency, and it is amenable to C0[sub 2] capture, because C0[sub 2] can be removed before combustion and the associated dilution with atmospheric nitrogen. This paper presents a process-design baseline that encompasses the IGCC system, C0[sub 2] transport by pipeline, and land-based sequestering of C0[sub 2] in geological reservoirs.The intent of this study is to provide the C0[sub 2] budget, or an equivalent C0[sub 2]'' budget, associated with each of the individual energy-cycle steps. Design capital and operating costs for the process are included in the full study but are not reported in the present paper. The value used for the equivalent C0[sub 2]'' budget will be 1 kg C0[sub 2]/kWh[sub e].

Doctor, R.D.; Molburg, J.C.; Thimmapuram, P.; Berry, G.F.; Livengood, C.D. (Argonne National Lab., IL (United States)); Johnson, R.A. (USDOE Morgantown Energy Technology Center, WV (United States))

1993-01-01T23:59:59.000Z

449

Lessons Learned From Gen I Carbon Dioxide Cooled Reactors  

Science Conference Proceedings (OSTI)

This paper provides a review of early gas cooled reactors including the Magnox reactors originating in the United Kingdom and the subsequent development of the Advanced Gas-cooled Reactors (AGR). These early gas cooled reactors shared a common coolant medium, namely carbon dioxide (CO2). A framework of information is provided about these early reactors and identifies unique problems/opportunities associated with use of CO2 as a coolant. Reactor designers successfully rose to these challenges. After years of successful use of the CO2 gas cooled reactors in Europe, the succeeding generation of reactors, called the High Temperature Gas Reactors (HTGR), were designed with Helium gas as the coolant. Again, in the 21st century, with the latest reactor designs under investigation in Generation IV, there is a revived interest in developing Gas Cooled Fast Reactors that use CO2 as the reactor coolant. This paper provides a historical perspective on the 52 CO2 reactors and the reactor programs that developed them. The Magnox and AGR design features and safety characteristics were reviewed, as well as the technologies associated with fuel storage, reprocessing, and disposal. Lessons-learned from these programs are noted to benefit the designs of future generations of gas cooled nuclear reactors.

David E. Shropshire

2004-04-01T23:59:59.000Z

450

Enhanced Carbonate Dissolution as a Means of Capturing and Sequestering Carbon Dioxide  

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

Rau et al., pg. 1 Rau et al., pg. 1 First National Conference on Carbon Sequestration Washington D.C., May 14-17, 2001 Enhanced Carbonate Dissolution as a Means of Capturing and Sequestering Carbon Dioxide Greg H. Rau 1,2 , Ken Caldeira 2 , Kevin G. Knauss 2 , Bill Downs 3 , and Hamid Sarv 3 1 Institute of Marine Sciences, University of California, Santa Cruz, CA 95064 (L-103, LLNL, 7000 East Ave., Livermore, CA 94550; 925-423-7990, rau4@llnl.gov) 2 Energy and Environment Directorate, LLNL, Livermore, CA 94550 3 McDermott Technology, Inc., 1562 Beeson Str., Alliance, OH 44601 Introduction Various methods have been proposed for mitigating anthropogenic CO 2 release to the atmos- phere, including storage via enhanced biological uptake on land or in the ocean and via sub- terranean or -marine injection of captured CO

451

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

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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

452

Cyclic process for producing methane in a tubular reactor with effective heat removal  

DOE Patents (OSTI)

Carbon monoxide-containing gas streams are converted to methane by a cyclic, essentially two-step process in which said carbon monoxide is disproportionated to form carbon dioxide and active surface carbon deposited on the surface of a catalyst, and said carbon is reacted with steam to form product methane and by-product carbon dioxide. The exothermic heat of reaction generated in each step is effectively removed during each complete cycle so as to avoid a build up of heat from cycle-to-cycle, with particularly advantageous techniques being employed for fixed bed, tubular and fluidized bed reactor operations.

Frost, Albert C. (Congers, NY); Yang, Chang-Lee (Spring Valley, NY)

1986-01-01T23:59:59.000Z

453

Electrochemical Membrane for Carbon Dioxide Separation and Power Generation  

Science Conference Proceedings (OSTI)

uelCell Energy, Inc. (FCE) has developed a novel system concept for separation of carbon dioxide (CO2) from greenhouse gas (GHG) emission sources using an electrochemical membrane (ECM). The salient feature of the ECM is its capability to produce electric power while capturing CO2 from flue gas, such as from an existing pulverized coal (PC) plant. Laboratory scale testing of the ECM has verified the feasibility of the technology for CO2 separation from simulated flue gases of PC plants as well as combined cycle power plants and other industrial facilities. Recently, FCE was awarded a contract (DE-FE0007634) from the U.S. Department of Energy to evaluate the use of ECM to efficiently and cost effectively separate CO2 from the emissions of existing coal fired power plants. The overarching objective of the project is to verify that the ECM can achieve at least 90% CO2 capture from flue gas of an existing PC plant with no more than 35% increase in the cost of electricity (COE) produced by the plant. The specific objectives and related activities planned for the project include: 1) conduct bench scale tests of a planar membrane assembly consisting of ten or more cells of about 0.8 m2 area each, 2) develop the detailed design for an ECM-based CO2 capture system applied to an existing PC plant, and 3) evaluate the effects of impurities (pollutants such as SO2, NOx, Hg) present in the coal plant flue gas by conducting laboratory scale performance tests of the membrane. The results of this project are anticipated to demonstrate that the ECM is an advanced technology, fabricated from inexpensive materials, based on proven operational track records, modular, scalable to large sizes, and a viable candidate for >90% carbon capture from existing PC plants. In this paper, the fundamentals of ECM technology including: material of construction, principal mechanisms of operation, carbon capture test results and the benefits of applications to PC plants will be presented.

Jolly, Stephen; Ghezel-Ayagh, Hossein; Hunt, Jennifer; Patel, Dilip; Steen, William A.; Richardson, Carl F.; Marina, Olga A.

2012-12-28T23:59:59.000Z

454

ANALYSIS OF DEVONIAN BLACK SHALES IN KENTUCKY FOR POTENTIAL CARBON DIOXIDE SEQUESTRATION AND ENHANCED NATURAL GAS PRODUCTION  

Science Conference Proceedings (OSTI)

CO{sub 2} emissions from the combustion of fossil fuels have been linked to global climate change. Proposed carbon management technologies include geologic sequestration of CO{sub 2}. A possible, but untested, sequestration strategy is to inject CO{sub 2} into organic-rich shales. Devonian black shales underlie approximately two-thirds of Kentucky and are thicker and deeper in the Illinois and Appalachian Basin portions of Kentucky than in central Kentucky. The Devonian black shales serve as both the source and trap for large quantities of natural gas; total gas in place for the shales in Kentucky is estimated to be between 63 and 112 trillion cubic feet. Most of this natural gas is adsorbed on clay and kerogen surfaces, analogous to methane storage in coal beds. In coals, it has been demonstrated that CO{sub 2} is preferentially adsorbed, displacing methane. Black shales may similarly desorb methane in the presence of CO{sub 2}. The concept that black, organic-rich Devonian shales could serve as a significant geologic sink for CO{sub 2} is the subject of current research. To accomplish this investigation, drill cuttings and cores were selected from the Kentucky Geological Survey Well Sample and Core Library. Methane and carbon dioxide adsorption analyses are being performed to determine the gas-storage potential of the shale and to identify shale facies with the most sequestration potential. In addition, sidewall core samples are being acquired to investigate specific black-shale facies, their potential CO{sub 2} uptake, and the resulting displacement of methane. Advanced logging techniques (elemental capture spectroscopy) are being investigated for possible correlations between adsorption capacity and geophysical log measurements. Initial estimates indicate a sequestration capacity of 5.3 billion tons CO{sub 2} in the Lower Huron Member of the Ohio shale in parts of eastern Kentucky and as much as 28 billion tons total in the deeper and thicker portions of the Devonian shales in Kentucky. Should the black shales of Kentucky prove to be a viable geologic sink for CO{sub 2}, their extensive occurrence in Paleozoic basins across North America would make them an attractive regional target for economic CO{sub 2} storage and enhanced natural gas production.

Brandon C. Nuttall

2003-07-28T23:59:59.000Z

455

NETL: News Release - Bees, Balloons, Pollen Used as Novel Carbon Dioxide  

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

9, 2009 9, 2009 Bees, Balloons, Pollen Used as Novel Carbon Dioxide Monitoring Approach Washington, D.C. - Researchers at the Office of Fossil Energy's National Energy Technology Laboratory (NETL) have discovered an innovative way to use bees, pollen, and helium-filled balloons to verify that no carbon dioxide (CO2) leaks from carbon sequestration sites. These new methods are an excellent way to determine environmental impact without disrupting habitats surrounding sequestration sites and can ensure the effectiveness of carbon storage options used to prevent CO2, a greenhouse gas, from escaping into the atmosphere. The carousel, lifted by Apogee's balloon, carries sorbent tubes aloft to sample for tracer above the carbon dioxide injection area in this NETL research project.