Powered by Deep Web Technologies
Note: This page contains sample records for the topic "metallurgical coal flows" 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.


1

AEO2011: World Metallurgical Coal Flows By Importing Regions...  

Open Energy Info (EERE)

World Metallurgical Coal Flows By Importing Regions and Exporting Countries

2

AEO2011: World Metallurgical Coal Flows By Importing Regions and Exporting  

Open Energy Info (EERE)

Metallurgical Coal Flows By Importing Regions and Exporting Metallurgical Coal Flows By Importing Regions and Exporting Countries Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is table 143, and contains only the reference case. The dataset uses million short tons. The data is broken down into Metallurgical coal exports to Europe, Asia and America. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords 2011 AEO coal EIA Data application/vnd.ms-excel icon AEO2011: World Metallurgical Coal Flows By Importing Regions and Exporting Countries- Reference Case (xls, 103.8 KiB) Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage Frequency Annually

3

Process for converting coal into liquid fuel and metallurgical coke  

DOE Patents (OSTI)

A method of recovering coal liquids and producing metallurgical coke utilizes low ash, low sulfur coal as a parent for a coal char formed by pyrolysis with a volatile content of less than 8%. The char is briquetted and heated in an inert gas over a prescribed heat history to yield a high strength briquette with less than 2% volatile content.

Wolfe, Richard A. (Abingdon, VA); Im, Chang J. (Abingdon, VA); Wright, Robert E. (Bristol, TN)

1994-01-01T23:59:59.000Z

4

Table 15. Metallurgical Coal Exports by Customs District  

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

Metallurgical Coal Exports by Customs District Metallurgical Coal Exports by Customs District (short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Table 15. Metallurgical Coal Exports by Customs District (short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Year to Date Customs District April - June 2013 January - March 2013 April - June 2012 2013 2012 Percent Change Eastern Total 11,716,074 14,136,513 15,167,377 25,852,587 27,578,514 -6.3 Baltimore, MD 2,736,470 4,225,450 5,123,600 6,961,920 9,037,970 -23.0 Boston, MA - - - - 28,873 - Buffalo, NY 247,714 121,347 524,040 369,061 725,698 -49.1 Norfolk, VA 8,730,257 9,784,866 9,519,119 18,515,123 17,784,479 4.1 Ogdensburg, NY 1,633 4,850 618 6,483 1,494 333.9 Southern Total 3,551,564 3,824,484

5

Table 11. U.S. Metallurgical Coal Exports  

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

U.S. Metallurgical Coal Exports U.S. Metallurgical Coal Exports (short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Table 11. U.S. Metallurgical Coal Exports (short tons) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Year to Date Continent and Country of Destination April - June 2013 January - March 2013 April - June 2012 2013 2012 Percent Change North America Total 1,503,162 764,701 1,411,897 2,267,863 2,261,900 0.3 Canada* 975,783 343,309 1,260,473 1,319,092 1,895,263 -30.4 Dominican Republic 94 51,064 - 51,158 - - Mexico 527,285 370,328 151,424 897,613 366,637 144.8 South America Total 2,091,488 2,561,772 2,389,018 4,653,260 4,543,747 2.4 Argentina 104,745 155,806 203,569 260,551 253,841 2.6 Brazil 1,921,144 2,352,098 2,185,449 4,273,242

6

Prediction of metallurgical coke strength from the petrographic composition of coal blends  

Science Conference Proceedings (OSTI)

Turkey, especially Zonguldak on the West Coast of Black Sea region, has large reserves of bituminous coal that can be used either directly or in blends with other coals for metallurgical coke production. It is possible to predict the coking properties of these coals by petrographic analysis. In this study, semi- and non-coking coals were blended with coking bituminous coals in varying proportions and an estimation was made as to their stability factors through petrographic techniques. It was established that semi- and non-coking bituminous coals could be used in the production of metallurgical coke.

Sutcu, H.; Toroglu, I.; Piskin, S. [Zonguldak Karaelmas University, Zonguldak (Turkey)

2009-07-01T23:59:59.000Z

7

Table 12. Average Price of U.S. Metallurgical Coal Exports  

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

Average Price of U.S. Metallurgical Coal Exports Average Price of U.S. Metallurgical Coal Exports (dollars per short ton) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Table 12. Average Price of U.S. Metallurgical Coal Exports (dollars per short ton) U.S. Energy Information Administration | Quarterly Coal Report, April - June 2013 Year to Date Continent and Country of Destination April - June 2013 January - March 2013 April - June 2012 2013 2012 Percent Change North America Total 92.50 99.40 146.56 94.82 140.70 -32.6 Canada* 99.83 125.20 142.46 106.43 138.19 -23.0 Dominican Republic 114.60 77.21 - 77.27 - - Mexico 78.93 78.54 180.76 78.77 153.65 -48.7 South America Total 119.26 117.51 167.05 118.30 168.12 -29.6 Argentina 146.70 131.08 182.47 137.36 196.37 -30.1 Brazil 119.21 117.38 165.61 118.20

8

Analysis and prevention of metallurgical failures at a major direct coal liquefaction pilot plant  

Science Conference Proceedings (OSTI)

The H-Coal Pilot Plant in Catlettsburg, KY was the largest-capacity direct coal liquefaction project operating in the United States. Since the start of operations, performance of its components was carefully monitored and occasional failures were examined and documented. The results of the examinations were used to develop remedial steps and improve the design of scale-up units. In this paper, the metallurgical aspects of the following incidents will be described: 1) stress corrosion cracking of martensitic stainless steel bolting on the waterside of a heat exchanger; 2) stress corrosion cracking of a superalloy seal ring; 3) brittle failure of a low alloy nut in a block valve body; 4) corrosion damage in the fractionator and side stripper; 5) erosion/corrosion of a coal liquid transfer line in the atmospheric fractionation area; 6) pitting corrosion in a deaerator carbon steel inlet pipe; 7) brittle failure of a martensitic stainless steel ball in a block valve handling coal liquids; and 8) cracking of cobalt-base alloy seat rings in block valve applications. In addition, remedial steps and preventive measures leading to successful performance after repair are briefly described.

Sagues, A.A.; Ganesan, P.; Ragle, H.V.; Searles, R.C.; Sethi, V.K.

1984-09-01T23:59:59.000Z

9

EPRI Coal-Flow Loop  

Science Conference Proceedings (OSTI)

This report is targeted at plant personnel responsible for coal-flow measurement and mill balancing that are using or are considering the use of online, in situ measurement technologies. Optimum combustion in a boiler requires careful control of coal and air flow to individual burners. Measuring in near real-time the mass flow rate of pneumatically conveyed pulverized coal in burner feed pipes is a critical element of such control. This report summarizes the findings for two online coal-flow instruments ...

2006-12-01T23:59:59.000Z

10

Coal flows | OpenEI  

Open Energy Info (EERE)

Coal flows Coal flows Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is table 142, and contains only the reference case. The dataset uses million short tons. The data is broken down into steam coal exports to Europe, Asia and America. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords 2011 AEO Coal flows countries EIA exporting importing Data application/vnd.ms-excel icon AEO2011: World Steam Coal Flows By Importing Regions and Exporting Countries- Reference Case (xls, 103.7 KiB) Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage Frequency Annually Time Period 2008-2035 License

11

Use of resin-bearing wastes from coke and coal chemicals production at the Novokuznetsk Metallurgical Combine  

SciTech Connect

The coke and coal chemicals plant at the Novokuznetsk Metallurgical Combine is making trial use of a technology that recycles waste products in 'tar ponds.' Specialists from the Ekomash company have installed a recycling unit in one area of the plant's dump, the unit including an inclined conveyor with a steam heater and a receiving hopper The coal preparation shop receives the wastes in a heated bin, where a screw mixes the wastes with pail of the charge for the coking ovens. The mixture subsequently travels along a moving conveyor belt together with the rest of the charge materials. The addition of up to 2% resin-bearing waste materials to the coal charge has not had any significant effect on the strength properties of the coke.

Kul'kova, T.N.; Yablochkin, N.V.; Gal'chenko, A.I.; Karyakina, E.A.; Litvinova, V.A.; Gorbach, D.A.

2007-03-15T23:59:59.000Z

12

Study on the effect of heat treatment and gasification on the carbon structure of coal chars and metallurgical cokes using fourier transform Raman spectroscopy  

Science Conference Proceedings (OSTI)

Differences in the development of carbon structures between coal chars and metallurgical cokes during high-temperature reactions have been investigated using Raman spectroscopy. These are important to differentiate between different types of carbons in dust recovered from the top gas of the blast furnace. Coal chars have been prepared from a typical injectant coal under different heat-treatment conditions. These chars reflected the effect of peak temperature, residence time at peak temperature, heating rate and pressure on the evolution of their carbon structures. The independent effect of gasification on the development of the carbon structure of a representative coal char has also been studied. A similar investigation has also been carried out to study the effect of heat-treatment temperature (from 1300 to 2000{sup o}C) and gasification on the carbon structure of a typical metallurgical coke. Two Raman spectral parameters, the intensity ratio of the D band to the G band (I{sub D}/I{sub G}) and the intensity ratio of the valley between D and G bands to the G band (I{sub V}/I{sub G}), have been found useful in assessing changes in carbon structure. An increase in I{sub D}/I{sub G} indicates the growth of basic graphene structural units across the temperature range studied. A decrease in I{sub V}/I{sub G} appears to suggest the elimination of amorphous carbonaceous materials and ordering of the overall carbon structure. The Raman spectral differences observed between coal chars and metallurgical cokes are considered to result from the difference in the time-temperature history between the raw injectant coal and the metallurgical coke and may lay the basis for differentiation between metallurgical coke fines and coal char residues present in the dust carried over the top of the blast furnace. 41 refs., 17 figs., 3 tabs.

S. Dong; P. Alvarez; N. Paterson; D.R. Dugwell; R. Kandiyoti [Imperial College London, London (United Kingdom). Department of Chemical Engineering

2009-03-15T23:59:59.000Z

13

EPRI Coal Flow Loop: Evaluation of Extractive Methods  

Science Conference Proceedings (OSTI)

Extractive coal sampling methodologies are currently the principal method to estimate the flow of pulverized coal on the individual conveying lines of power boilers. The measurement uncertainty associated with the common methodologies is not well known. Parameters suspected to influence these types of measurement — such as distance from flow disturbances, flow regime, and air-to-coal ratio, among others — are difficult to control at a power plant. The Coal Flow Control and Measurement Laborat...

2005-03-24T23:59:59.000Z

14

The Magnetohydrodynamics Coal-Fired Flow Facility  

DOE Green Energy (OSTI)

Progress continued at MHD coal-fired flow facility. UTSI reports on progress in developing the technology for the steam bottoming portion of the MHD Steam Combined Cycle Power Plant. No Proof-of-Concept (POC) testing was conducted during the quarter but data analyses are reported from the test conducted during the prior quarter. Major results include corrosion data from the first 500 hours of testing on candidate tube materials in the superheater test module (SHTM). Solids mass balance data, electrostatic precipitator (ESP) and baghouse (BH) performance data, diagnostic systems and environmental data results from previous POC tests are included. The major activities this quarter were in facility modifications required to complete the scheduled POC test program. Activities reported include the installation of an automatic ash/seed removal system on the SHTM, the BH, and ESP hoppers. Also, a higher pressure compressor (350 psi) is being installed to provide additional blowing pressure to remove solids deposits on the convective heat transfer tubes in the high temperature zone where the deposits are molten. These activities are scheduled to be completed and ready for the next test, which is scheduled for late May 1990. Also, experiments on drying western coal are reported. The recommended system for modifying the CFFF coal system to permit processing of western coal is described. Finally, a new effort to test portions of the TRW combustor during tests in the CFFF is described. The status of system analyses being conducted under subcontract by the Westinghouse Electric Corporation is also described. 2 refs., 18 figs., 3 tabs.

Not Available

1990-11-01T23:59:59.000Z

15

Weld Metal Metallurgical Handbook  

Science Conference Proceedings (OSTI)

This report is part of an ongoing series of metallurgical handbooks that are being developed for utility engineers to use in assessing metallurgical characteristics of any given alloy. This report focuses specifically on the weld metal metallurgical characteristics of carbon, low-alloy martensitic, and austenitic stainless steel welds.

2009-03-31T23:59:59.000Z

16

Coal News and Markets  

U.S. Energy Information Administration (EIA)

Metallurgical coal markets became volatile when the thriving Chinese steel industry in late 2003 and 2004 made outsized demands for coking coal and met coke, ...

17

THE COMBUSTION OF SOLVENT REPINED COAL IN AN OPPOSED FLOW DIFFUSION FLAME  

E-Print Network (OSTI)

R.F. (1977). Combustion of coal in an opposed flow diffusionpulverized, solvent-refined coal. ASME Paper No. 76-WA/FU-6.OF SOLVENT REFINED COAL IN AN OPPOSED FLOW DIFFUSION FLAME*

Chin, W.K.

2011-01-01T23:59:59.000Z

18

Bull Run Fossil Plant Online Coal Flow Adjustable Riffler Test  

Science Conference Proceedings (OSTI)

Boiler optimization at fossil-fired power plants would be enhanced if the flow of coal and air in individual pulverizer fuel delivery lines could be balanced. The static splitter devices currently in service do not adequately maintain coal balance, especially when plant conditions change. This report summarizes the results of a test program to demonstrate the feasibility of using a novel riffler to make online adjustments to a stream of pneumatically conveyed pulverized coal at a working plant. The demon...

2008-03-13T23:59:59.000Z

19

EPRI Coal Flow Loop: System Description and Commissioning  

Science Conference Proceedings (OSTI)

Following several demonstration projects of in situ coal flow measurement systems in full-scale utility boilers, many unknown influences on these instruments in field applications remained. Given the production nature of the power plant, it has been difficult, if not impossible, to sort out which parameters could influence the various probe technologies. It has also been recognized for some time that little is known regarding the performance of coal flow splitters, even where rifflers are employed. Final...

2004-03-15T23:59:59.000Z

20

Mathematical modeling of methane flow in coal beds  

Science Conference Proceedings (OSTI)

The paper offers to describe the free and occlude gas filtration and diffusion in a coal bed by a numerical model in the form of a system of heterogenous parabolic equations. The gas flow as a shock and depression wave has been considered, and the desorption isotherm conditions for these waves to arise in a coal bed are formulated. By analyzing experimental data on cavities generated by a sudden coal and gas outburst, the authors construct the numerical model describing gas and coal mix outflow in a mine.

Fedorov, A.V.; Fedorchenko, I.A. [Russian Academy of Sciences, Novosibirsk (Russian Federation)

2009-01-15T23:59:59.000Z

Note: This page contains sample records for the topic "metallurgical coal flows" 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

Low rank coal upgrading in a flow of hot water  

Science Conference Proceedings (OSTI)

Simultaneous hydrothermal degradation and extraction at around 350{sup o}C using flowing solvent as a reaction/extraction medium were proposed for upgrading brown coal, more specifically, for converting brown coal into several fractions having different molecular weight and chemical structure under mild conditions. When an Australian brown coal, Loy Yang coal, was treated by water at 350{sup o}C under 18 MPa, the coal was separated into four fractions: gaseous product by 8% yield, water-soluble extract at room temperature (soluble) by 23% yield, extract precipitates as solid at room temperature (deposit) by 23% yield, and residual coal (upgraded coal) by 46% yield on daf basis. The separation was found to be realized by in situ extraction of low-molecular-weight substances released from coal macromolecular structure and/or those generated by hydrothermal decomposition reactions at 350{sup o}C. The solid products obtained, deposit and upgraded coal, were characterized in detail to examine the possibility of their effective utilization as solid fuel and chemical feed stock. The upgraded coal showed higher heating value and higher gasification reactivity than the parent coal, indicating that the upgraded coal can be a better solid fuel than the parent coal. The solid extract, deposit, was found to show thermoplasticity at less than 200{sup o}C, suggesting the possibility of utilizing the deposit as a raw material of high performance carbon materials. Several variables affecting the performance of the proposed method are also examined in detail in this paper. 12 refs., 8 figs., 3 tabs.

Masato Morimoto; Hiroyuki Nakagawa; Kouichi Miura [Kyoto University, Kyoto (Japan). Department of Chemical Engineering

2009-09-15T23:59:59.000Z

22

The low moisture eastern coal processing system at the UTSI-DOE Coal Fired Flow Facility  

DOE Green Energy (OSTI)

A low moisture, eastern coal processing system was constructed at the Department of Energy`s Coal Fired Flow Facility (CFFF), located at the University of Tennessee Space Institute in Tullahoma, Tennessee, to provide a metered and regulated supply of seeded, pulverized coal to support magnetohydrodynamic (MHD) power generation research. The original system configuration is described as well as major modifications made in response to specific operational problems. Notable among these was the in-house development of the Moulder flow control valve which exhibited marked improvement in durability compared to previous valves used with pulverized coal. Coal processing system performance parameters are discussed. A summary of tests conducted and significant events are included.

Evans, B.R.; Washington, E.S.; Sanders, M.E.

1993-10-01T23:59:59.000Z

23

Southern Coal finds value in the met market  

Science Conference Proceedings (OSTI)

The Justice family launches a new coal company (Southern Coal Corp.) to serve metallurgical and steam coal markets. 1 tab., 3 photos.

Fiscor, S.

2009-11-15T23:59:59.000Z

24

The high moisture western coal processing system at the UTSI-DOE Coal Fired Flow Facility. Topical report  

DOE Green Energy (OSTI)

The original eastern coal processing system at the Department of Energy`s Coal Fired Flow Facility (CFFF), located at the University of Tennessee Space Institute in Tullahoma, Tennessee, was modified to pulverize and dry Montana Rosebud, a western coal. Significant modifications to the CFFF coal processing system were required and the equipment selection criteria are reviewed. Coal processing system performance parameters are discussed. A summary of tests conducted and significant events are included.

Sanders, M.E.

1996-02-01T23:59:59.000Z

25

COMBUSTION OF COAL IN AN OPPOSED FLOW DIFFUSION BURNER  

E-Print Network (OSTI)

P.J. and Wells, J.H. , Coal, Coke and Coal Chemicals, 108, (of coal, carbon, char. coke, and other coal derived orpulverized coal, char, coke, solvent refined coal, and coal

Chin, W.K.

2010-01-01T23:59:59.000Z

26

Application of discrete element method to the analysis of free-flow outlet of coal from high coals at underground coal mining  

Science Conference Proceedings (OSTI)

The mathematical model is developed on the basis of the Discrete Elements Method for investigation of processes of gravitational flow of the granular materials. The problem about free-flow outlet of coal from high coals in sublevel caving systems is ... Keywords: discrete element modeling, granular medium, numerical simulation, powered support, rock massif, underground coal mining

Vladimir I. Klishin; Sergey V. Klishin

2010-05-01T23:59:59.000Z

27

Cyclic flow underground coal gasification process  

SciTech Connect

The present invention is directed to a method of in situ coal gasification for providing the product gas with an enriched concentration of carbon monoxide. The method is practiced by establishing a pair of combustion zones in spaced-apart boreholes within a subterranean coal bed and then cyclically terminating the combustion in the first of the two zones to establish a forward burn in the coal bed so that while an exothermic reaction is occurring in the second combustion zone to provide CO.sub.2 -laden product gas, an endothermic CO-forming reaction is occurring in the first combustion zone between the CO.sub.2 -laden gas percolating thereinto and the hot carbon in the wall defining the first combustion zone to increase the concentration of CO in the product gas. When the endothermic reaction slows to a selected activity the roles of the combustion zones are reversed by re-establishing an exothermic combustion reaction in the first zone and terminating the combustion in the second zone.

Bissett, Larry A. (Morgantown, WV)

1978-01-01T23:59:59.000Z

28

EPRI Coal-Flow Loop: Evaluation of Extractive Methods - Addendum  

Science Conference Proceedings (OSTI)

Boiler performance and emissions are highly dependent on burner-to-burner fuel balancing. However, in full-scale boilers, most investigations in coal flow measurement and control work to date have been performed in relatively uncontrolled environments with largely inconsistent results. In addition, the uncertainty of extractive field measurements has not been well characterized from this field experience. Sampling errors resulting from either the nature of the flow or human error have not been quantified...

2006-10-30T23:59:59.000Z

29

COURSE NOTES: Metallurgical Thermodynamics (MET 320)  

Science Conference Proceedings (OSTI)

Feb 10, 2007 ... Department of Materials and Metallurgical Engineering. South Dakota School of Mines & Technology. Launch Metallurgical Thermodynamics

30

The magnetohydrodynamics Coal-Fired Flow Facility  

DOE Green Energy (OSTI)

In this quarterly technical progress report, UTSI summarizes the results of a multi-task research and development project directed toward the development of the technology for the commercialization of the steam bottoming plant for the MHD steam combined cycle power plant. The report covers the final test in a 2000-hour proof-of-concept (POC) test series on eastern coal, the plans and progress for the facility modifications and the conduct of the POC tests to be conducted with western coal. Results summarized in the report include chloride emissions from the particle removal (ESP/BH) processes, nitrogen and sulfur oxide emissions for various tests conditions, measurements of particulate control efficiency and management of the facility holding ponds during testing. Activities relating to corrosion and deposition probe measurements during testing and the fouling of heat transfer tubes and interaction with sootblowing cycles are summarized. The performance of both UTSI and Mississippi State University (MSU) advanced diagnostic systems is reported. Significant administrative and contractual actions are included. 2 refs., 28 figs., 7 tabs.

Not Available

1991-07-01T23:59:59.000Z

31

Air-flow regulation system for a coal gasifier  

DOE Patents (OSTI)

An improved air-flow regulator for a fixed-bed coal gasifier is provided which allows close air-flow regulation from a compressor source even though the pressure variations are too rapid for a single primary control loop to respond. The improved system includes a primary controller to control a valve in the main (large) air supply line to regulate large slow changes in flow. A secondary controller is used to control a smaller, faster acting valve in a secondary (small) air supply line parallel to the main line valve to regulate rapid cyclic deviations in air flow. A low-pass filter with a time constant of from 20 to 50 seconds couples the output of the secondary controller to the input of the primary controller so that the primary controller only responds to slow changes in the air-flow rate, the faster, cyclic deviations in flow rate sensed and corrected by the secondary controller loop do not reach the primary controller due to the high frequency rejection provided by the filter. This control arrangement provides at least a factor of 5 improvement in air-flow regulation for a coal gasifier in which air is supplied by a reciprocating compressor through a surge tank.

Fasching, George E. (Morgantown, WV)

1984-01-01T23:59:59.000Z

32

Conceptual flow sheets development for coal conversion plant coal handling-preparation and ash/slag removal operations  

SciTech Connect

This report presents 14 conceptual flow sheets and major equipment lists for coal handling and preparation operations that could be required for future, commercial coal conversion plants. These flow sheets are based on converting 50,000 tons per day of clean coal representative of the Pittsburgh and Kentucky No. 9 coal seams. Flow sheets were used by Union Carbide Corporation, Oak Ridge National Laboratory, in a survey of coal handling/preparation equipment requirements for future coal conversion plants. Operations covered in this report include run-of-mine coal breaking, coarse coal cleaning, fine coal cleaning, live storage and blending, fine crushing (crushing to top sizes ranging from 1/4-inch to 20 mesh), drying, and grinding (70 percent minus 200 mesh). Two conceptual flow sheets and major equipment lists are also presented for handling ash or granulated slag and other solid wastes produced by nine leading coal conversion processes. These flow sheets provide for solid wastes transport to an environmentally acceptable disposal site as either dry solids or as a water slurry.

1979-07-01T23:59:59.000Z

33

Research on Resource Value Flow Accounting Based on Circular Economy for Coal-fired Power Plant  

Science Conference Proceedings (OSTI)

This paper presents the methodology of resource value flow accounting developed for a study which combined material flow analysis?MFA? for the coal-fired power generation plant, in order to shed light on concepts such as resource productivity ... Keywords: Circular economy, Coal-fired power plant, Material flow analysis, Resource value flow accounting

Xie Zhiming; Yi Xuan

2010-05-01T23:59:59.000Z

34

OPTIMIZATION OF COAL PARTICLE FLOW PATTERNS IN LOW NOX BURNERS  

SciTech Connect

It is well understood that the stability of axial diffusion flames is dependent on the mixing behavior of the fuel and combustion air streams. Combustion aerodynamic texts typically describe flame stability and transitions from laminar diffusion flames to fully developed turbulent flames as a function of increasing jet velocity. Turbulent diffusion flame stability is greatly influenced by recirculation eddies that transport hot combustion gases back to the burner nozzle. This recirculation enhances mixing and heats the incoming gas streams. Models describing these recirculation eddies utilize conservation of momentum and mass assumptions. Increasing the mass flow rate of either fuel or combustion air increases both the jet velocity and momentum for a fixed burner configuration. Thus, differentiating between gas velocity and momentum is important when evaluating flame stability under various operating conditions. The research efforts described herein are part of an ongoing project directed at evaluating the effect of flame aerodynamics on NO{sub x} emissions from coal fired burners in a systematic manner. This research includes both experimental and modeling efforts being performed at the University of Arizona in collaboration with Purdue University. The objective of this effort is to develop rational design tools for optimizing low NO{sub x} burners. Experimental studies include both cold-and hot-flow evaluations of the following parameters: primary and secondary inlet air velocity, coal concentration in the primary air, coal particle size distribution and flame holder geometry. Hot-flow experiments will also evaluate the effect of wall temperature on burner performance.

Jost O.L. Wendt; Gregory E. Ogden; Jennifer Sinclair; Stephanus Budilarto

2001-09-04T23:59:59.000Z

35

Effect of Coal Properties and Operation Conditions on Flow Behavior of Coal Slag in Entrained Flow Gasifiers: A Brief Review  

Science Conference Proceedings (OSTI)

Integrated gasification combined cycle (IGCC) is a potentially promising clean technology with an inherent advantage of low emissions, since the process removes contaminants before combustion instead of from flue gas after combustion, as in a conventional coal steam plant. In addition, IGCC has potential for cost-effective carbon dioxide capture. Availability and high capital costs are the main challenges to making IGCC technology more competitive and fully commercial. Experiences from demonstrated IGCC plants show that, in the gasification system, low availability is largely due to slag buildup in the gasifier and fouling in the syngas cooler downstream of the gasification system. In the entrained flow gasifiers used in IGCC plants, the majority of mineral matter transforms to liquid slag on the wall of the gasifier and flows out the bottom. However, a small fraction of the mineral matter (as fly ash) is entrained with the raw syngas out of the gasifier to downstream processing. This molten/sticky fly ash could cause fouling of the syngas cooler. Therefore, it is preferable to minimize the quantity of fly ash and maximize slag. In addition, the hot raw syngas is cooled to convert any entrained molten fly slag to hardened solid fly ash prior to entering the syngas cooler. To improve gasification availability through better design and operation of the gasification process, better understanding of slag behavior and characteristics of the slagging process are needed. Slagging behavior is affected by char/ash properties, gas compositions in the gasifier, the gasifier wall structure, fluid dynamics, and plant operating conditions (mainly temperature and oxygen/carbon ratio). The viscosity of the slag is used to characterize the behavior of the slag flow and is the dominating factor to determine the probability that ash particles will stick. Slag viscosity strongly depends on the temperature and chemical composition of the slag. Because coal has varying ash content and composition, different operating conditions are required to maintain the slag flow and limit problems downstream. This report briefly introduces the IGCC process, the gasification process, and the main types and operating conditions of entrained flow gasifiers used in IGCC plants. This report also discusses the effects of coal ash and slag properties on slag flow and its qualities required for the entrained flow gasifier. Finally this report will identify the key operating conditions affecting slag flow behaviors, including temperature, oxygen/coal ratio, and flux agents.

Wang,Ping; Massoudi, Mehrdad

2011-01-01T23:59:59.000Z

36

COMBUSTION OF COAL IN AN OPPOSED FLOW DIFFUSION BURNER  

E-Print Network (OSTI)

and N.M. Laurendeau, "Gasification of Pulverized Coal Withininformation on the gasification and combustion of coal with

Chin, W.K.

2010-01-01T23:59:59.000Z

37

COMBUSTION OF COAL IN AN OPPOSED FLOW DIFFUSION BURNER  

E-Print Network (OSTI)

November 1976. Wilson, P.J. and Wells, J.H. , Coal, Cokeand Coal Chemicals, 108, (1950). This report was done withliThe F1uidised Combustion of Coal," Sixteenth S m osium {

Chin, W.K.

2010-01-01T23:59:59.000Z

38

Flow Allocation Model and Algorithm Based on Multi-target Coal Transportation Network  

Science Conference Proceedings (OSTI)

Coal transportation network consists of multiple logistics nodes and transportation paths. As the node capacity and cost factors is limited, its flow distribution is a multi-target and multi-constraint problem. Through the use of multi-target planning ... Keywords: flow allocation, model, algorithm, multi-target, coal transportation network

Tingting Zhu; Tianjun Hu; Xifu Wang; Yalong Zhao

2012-04-01T23:59:59.000Z

39

Coal flow aids reduce coke plant operating costs and improve production rates  

Science Conference Proceedings (OSTI)

Chemical coal flow aids can provide many benefits to coke plants, including improved production rates, reduced maintenance and lower cleaning costs. This article discusses the mechanisms by which coal flow aids function and analyzes several successful case histories. 2 refs., 10 figs., 1 tab.

Bedard, R.A.; Bradacs, D.J.; Kluck, R.W.; Roe, D.C.; Ventresca, B.P.

2005-06-01T23:59:59.000Z

40

Use of the GranuFlow Process in Coal Preparation Plants to Improve Energy Recovery and Reduce Coal Processing Wastes  

Science Conference Proceedings (OSTI)

With the increasing use of screen-bowl centrifuges in today's fine coal cleaning circuits, a significant amount of low-ash, high-Btu coal can be lost during the dewatering step due to the difficulty in capturing coal of this size consist (< 100 mesh or 0.15mm). The GranuFlow{trademark} technology, developed and patented by an in-house research group at DOE-NETL, involves the addition of an emulsified mixture of high-molecular-weight hydrocarbons to a slurry of finesized coal before cleaning and/or mechanical dewatering. The binder selectively agglomerates the coal, but not the clays or other mineral matter. In practice, the binder is applied so as to contact the finest possible size fraction first (for example, froth flotation product) as agglomeration of this fraction produces the best result for a given concentration of binder. Increasing the size consist of the fine-sized coal stream reduces the loss of coal solids to the waste effluent streams from the screen bowl centrifuge circuit. In addition, the agglomerated coal dewaters better and is less dusty. The binder can also serve as a flotation conditioner and may provide freeze protection. The overall objective of the project is to generate all necessary information and data required to commercialize the GranuFlow{trademark} Technology. The technology was evaluated under full-scale operating conditions at three commercial coal preparation plants to determine operating performance and economics. The handling, storage, and combustion properties of the coal produced by this process were compared to untreated coal during a power plant combustion test.

Glenn A. Shirey; David J. Akers

2005-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "metallurgical coal flows" 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

AEO2011: World Steam Coal Flows By Importing Regions and Exporting  

Open Energy Info (EERE)

Steam Coal Flows By Importing Regions and Exporting Steam Coal Flows By Importing Regions and Exporting Countries Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is table 142, and contains only the reference case. The dataset uses million short tons. The data is broken down into steam coal exports to Europe, Asia and America. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords 2011 AEO Coal flows countries EIA exporting importing Data application/vnd.ms-excel icon AEO2011: World Steam Coal Flows By Importing Regions and Exporting Countries- Reference Case (xls, 103.7 KiB) Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage

42

Most U.S. coal exports went to European and Asian markets in 2011 ...  

U.S. Energy Information Administration (EIA)

South Korea (10 million short tons) ranked in the top 10 destinations for both U.S. metallurgical coal exports and steam coal exports. In fact, ...

43

AEO2011: World Total Coal Flows By Importing Regions and Exporting  

Open Energy Info (EERE)

Total Coal Flows By Importing Regions and Exporting Total Coal Flows By Importing Regions and Exporting Countries Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is table 144, and contains only the reference case. The dataset uses million short tons. The data is broken down into total coal exports to Europe, Asia and America. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords 2011 AEO coal EIA Data application/vnd.ms-excel icon AEO2011: World Total Coal Flows By Importing Regions and Exporting Countries - Reference Case (xls, 104 KiB) Quality Metrics Level of Review Peer Reviewed Comment Temporal and Spatial Coverage Frequency Annually Time Period 2008-2035

44

Entrained-flow dry-bottom gasification of high-ash coals in coal-water slurries  

SciTech Connect

It was shown that the effective use of dry ash removal during entrained-flow gasification of coal-water slurries consists in simplification of the ash storage system and utilization of coal ash, a decrease in the coal demand, a reduction in the atmospheric emissions of noxious substances and particulate matter, and abandonment of the discharge of water used for ash slurry. According to the results of gasification of coal-water slurries (5-10 {mu}m) in a pilot oxygen-blow unit at a carbon conversion of >91%, synthesis gas containing 28.5% CO, 32.5% H{sub 2}, 8.2% CO{sub 2}, 1.5% CH{sub 4}, the rest being nitrogen, was obtained. The fly ash in its chemical composition, particle size, and density meets the requirements of the European standard EN 450 as a cement additive for concrete manufacture.

E.G. Gorlov; V.G. Andrienko; K.B. Nefedov; S.V. Lutsenko; B.K. Nefedov [Institute for Fossil Fuels, Moscow (Russian Federation)

2009-04-15T23:59:59.000Z

45

AEO2011: World Total Coal Flows By Importing Regions and Exporting  

Open Energy Info (EERE)

Total Coal Flows By Importing Regions and Exporting Countries

46

AEO2011: World Steam Coal Flows By Importing Regions and Exporting  

Open Energy Info (EERE)

Steam Coal Flows By Importing Regions and Exporting Countries

47

MHD coal-fired flow facility. Annual technical progress report, October 1979-September 1980  

DOE Green Energy (OSTI)

The University of Tennessee Space Institute (UTSI) reports on significant activity, task status, planned research, testing, development, and conclusions for the Magnetohydrodynamics (MHD) Coal-Fired Flow Faclity (CFFF) and the Energy Conversion Facility (ECF).

Alstatt, M.C.; Attig, R.C.; Brosnan, D.A.

1981-03-01T23:59:59.000Z

48

COMBUSTION OF COAL IN AN OPPOSED FLOW DIFFUSION BURNER  

E-Print Network (OSTI)

J.M. , liThe F1uidised Combustion of Coal," Sixteenth Sm osium {International} on Combustion, August 1976 (to beof Various Polymers Under Combustion Conditions," Fourteenth

Chin, W.K.

2010-01-01T23:59:59.000Z

49

Keynote: Implementing New Technology in Metallurgical Processes  

Science Conference Proceedings (OSTI)

Presentation Title, Keynote: Implementing New Technology in Metallurgical Processes: Building ... DRI-based Continuous Steelmaking: From Theory to Practice.

50

Coal....  

U.S. Energy Information Administration (EIA)

DOE EIA WEEKLY COAL ... Coal Prices and Earnings (updated April 28, 2004) Spot coal prices in the East rose steadily since Labor Day 2003, with rapid escalations ...

51

Coal....  

U.S. Energy Information Administration (EIA)

DOE EIA WEEKLY COAL ... Coal Prices and Earnings (updated September 26) The average spot prices for reported coal purchases rose once again ...

52

Cermet crucible for metallurgical processing  

DOE Patents (OSTI)

A cermet crucible for metallurgically processing metals having high melting points comprising a body consisting essentially of a mixture of calcium oxide and erbium metal, the mixture comprising calcium oxide in a range between about 50 and 90% by weight and erbium metal in a range between about 10 and 50% by weight.

Boring, C.P.

1994-12-31T23:59:59.000Z

53

Coal....  

U.S. Energy Information Administration (EIA)

Coal Prices and Earnings (updated August 12) According to Platts Coal Outlook’s Weekly Price Survey (August 11), the ...

54

Coal....  

U.S. Energy Information Administration (EIA)

Coal Prices and Earnings (updated September 2) The average spot prices for coal traded last week were relatively ...

55

A fully coupled finite element model of coal deformation and two phase flow for coalbed methane extraction.  

E-Print Network (OSTI)

??A reservoir simulation model is usually required to represent the combined effects of gas transport, water flow, and coal swelling/shrinking on the extraction of coalbed… (more)

Chen, Dong

2012-01-01T23:59:59.000Z

56

Cross flow flotation column for coal and minerals beneficiation  

DOE Patents (OSTI)

An apparatus and process are disclosed for the separation of coal from pyritic impurities using a modified froth flotation system. The froth flotation column incorporates a helical track about the inner wall of the column in a region intermediate between the top and base of the column. A standard impeller located about the central axis of the column is used to generate a centrifugal force thereby increasing the separation efficiency of coal from the pyritic particles and hydrophilic tailings.

Lai, Ralph W.; Patton, Robert A.

1997-12-01T23:59:59.000Z

57

Cross flow cyclonic flotation column for coal and minerals beneficiation  

SciTech Connect

An apparatus and process for the separation of coal from pyritic impurities using a modified froth flotation system. The froth flotation column incorporates a helical track about the inner wall of the column in a region intermediate between the top and base of the column. A standard impeller located about the central axis of the column is used to generate a centrifugal force thereby increasing the separation efficiency of coal from the pyritic particles and hydrophillic tailings.

Lai, Ralph W. (Upper St. Clair, PA); Patton, Robert A. (Pittsburgh, PA)

2000-01-01T23:59:59.000Z

58

Effect of weathering on coal characteristics and coke qualities.  

E-Print Network (OSTI)

??The effect of weathering on the modification of chemical, petrological and rheological properties of four metallurgical coals in different rank and geology was investigated. And… (more)

Lee, Seung Jae

2012-01-01T23:59:59.000Z

59

Coal - Analysis & Projections - U.S. Energy Information ...  

U.S. Energy Information Administration (EIA)

Average cost of metallurgical coal priced at coke plants and export docks; Archive. Thank You. We welcome your comments or suggestions (optional).

60

Assessment of Furnace Coal Flow Balancing on Combustion Efficiency and Emissions  

Science Conference Proceedings (OSTI)

In theory, boiler performance and emissions can be affected by fuel conveyance. After evaluating both the measurement instrumentation and the control devices in the Electric Power Research Institute’s (EPRI’s) unique flow loop laboratory, the analysis was brought into an operating power plant setting to determine the effect of coal and air flow delivery balance on boiler efficiency and emissions. These tests describe the effects of fuel and air flow ...

2013-06-28T23:59:59.000Z

Note: This page contains sample records for the topic "metallurgical coal flows" 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

Coal....  

U.S. Energy Information Administration (EIA)

DOE EIA WEEKLY COAL ... Coal Prices and Earnings (updated July 7, 2004) In the trading week ended July 2, the average spot coal prices tracked by EIA were mixed.

62

Coal Particle Flow Patterns for O2 Enriched, Low NOx Burners  

SciTech Connect

This project involved a systematic investigation examining the effect of near-flame burner aerodynamics on standoff distance and stability of turbulent diffusion flames and the resultant NO{sub x} emissions from actual pulverized coal diffusion flames. Specifically, the scope of the project was to understand how changes in near-flame aerodynamics and transport air oxygen partial pressure can influence flame attachment and coal ignition, two properties essential to proper operation of low NO{sub x} burners. Results from this investigation utilized a new 2M tall, 0.5m in diameter combustor designed to evaluate near-flame combustion aerodynamics in terms of transport air oxygen partial pressure (Po{sub 2}), coal fines content, primary fuel and secondary air velocities, and furnace wall temperature furnish insight into fundamental processes that occur during combustion of pulverized coal in practical systems. Complementary cold flow studies were conducted in a geometrically similar chamber to analyze the detailed motion of the gas and particles using laser Doppler velocimetry. This final technical report summarizes the key findings from our investigation into coal particle flow patterns in burners. Specifically, we focused on the effects of oxygen enrichment, the effect of fines, and the effect of the nozzle velocity ratio on the resulting flow patterns. In the cold flow studies, detailed measurements using laser Doppler velocimetry (LDV) were made to determine the details of the flow. In the hot flow studies, observations of flame stability and measurements of NO{sub x} were made to determine the effects of the flow patterns on burner operation.

Jennifer Sinclair Curtis

2005-08-01T23:59:59.000Z

63

A Glossary of Mining & Metallurgical Terms, 1881  

Science Conference Proceedings (OSTI)

Jul 18, 1981... or two other sources, to serve as an appendix to a new work on mining ... AIME, the American Institute of Mining, Metallurgical, and Petroleum ...

64

new technology implementation in metallurgical processes  

Science Conference Proceedings (OSTI)

Incremental Scale Up of Isasmelt™ - The Key to Its Success · Keynote: Implementing New Technology in Metallurgical Processes: Building Plants that Work.

65

Using Metallurgical Analysis to Develop Durability Enhancement ...  

Science Conference Proceedings (OSTI)

Presentation Title, Using Metallurgical Analysis to Develop Durability Enhancement Opportunities for Gas Turbine Engines. Author(s), Doug Nagy. On- Site ...

66

Heat pipe cooling of metallurgical furnace equipment.  

E-Print Network (OSTI)

??Current water-cooling technology used in the metallurgical industry poses a major safety concern. In addition, these systems are expensive to operate and result in significant… (more)

Navarra, Pietro, 1979-

2006-01-01T23:59:59.000Z

67

Heat Recovery from Coal Gasifiers  

E-Print Network (OSTI)

This paper deals with heat recovery from pressurized entrained and fixed bed coal gasifiers for steam generation. High temperature waste heat, from slagging entrained flow coal gasifier, can be recovered effectively in a series of radiant and convection waste heat boilers. Medium level waste heat leaving fixed bed type gasifiers can be recovered more economically by convection type boilers or shell and tube heat exchangers. An economic analysis for the steam generation and process heat exchanger is presented. Steam generated from the waste heat boiler is used to drive steam turbines for power generation or air compressors for the oxygen plant. Low level heat recovered by process heat exchangers is used to heat product gas or support the energy requirement of the gasification plant. The mechanical design for pressure vessel shell and boiler tubes is discussed. The design considers metallurgical requirements associated with hydrogen rich, high temperature, and high pressure atmosphere.

Wen, H.; Lou, S. C.

1981-01-01T23:59:59.000Z

68

Status of Proof-Of-Concept testing at the Coal-Fired-Flow Facility, 1993  

DOE Green Energy (OSTI)

Proof-of-concept (POC) testing, and collection and evaluation of data continued at the Coal-Fired-Flow Facility during the past year. Following four preliminary tests firing Rosebud coal in 1991 to establish base conditions for the Rosebud coal POC tests, three POC tests were run in 1992, and a fourth test early in 1993. Major equipment additions or modifications included installation of a wet electrostatic precipitator (ESP), which replaced a badly deteriorated venturi. This component also provides improved capability to meet Tennessee pollution regulations while operating the dry ESP and/or baghouse off design, or if one of these two control devices does not function properly. Improvements were also made to the dry ESP prior to the 1993 test, which appear to have improved the performance of this equipment. This paper will present an overview of the major results obtained during the Rosebud coal POC tests, including the performance of the dry and wet electrostatic precipitators. Differences between the Rosebud and Illinois coals will be described, but it is emphasized that these observations are based on incomplete results for the Rosebud coal.

Attig, R.C.; Chapman, J.N.; Johanson, N.R.

1993-06-01T23:59:59.000Z

69

Hungarian Mining and Metallurgical (OMBKE)  

Science Conference Proceedings (OSTI)

ORGANIZATION. Members work in six different sections within the Society. These are: Mining (coal and minerals); Oil and gas; Iron and steel; Nonferrous metals ...

70

Coal - U.S. Energy Information Administration (EIA)  

U.S. Energy Information Administration (EIA)

Coal-fired plants projected to continue as the largest source of U.S. electricity generation ... and average cost of metallurgical coal at coke plants and export docks.

71

Dr. Norman Hilberry Metallurgical Laboratory  

Office of Legacy Management (LM)

December 23, 1942 December 23, 1942 217, i Dr. Norman Hilberry Metallurgical Laboratory University of Chicago Chicago, Illlnols Dear Dr. Hllbarry: In akcordance with the arrangments made with Dr. Compton, I am attachIng.heretb Copy No. 13 of Dr. Kraus' Progreee Report dated December 15, 1942. Thle report contains addltloral information on the preparation of metallic uranium by the, reduction of UC13 with sodium. Very truly goAre, RR:OT Attaohment CONFIFIMEOTOSE l,NCL&.$.,Fl&, DOEOFFICE OF OECMS.W,,3,~ HERSERTSCHMIOT A.D.D. i DUIE: . 9 pages: 0 figures., G&es 1 to 19. inci, SeriesA. . . Progress Report By Charles A. Kraus December 15, 1942 Contract No. OEMsr~290, Supplement 2 Contract No, OZMsr-688. A. PrepeZ+tion of UC& L-cm lJJa and Ccl,. The study of the va.?ious, i'actors which may influence the

72

Product Characterization for Entrained Flow Coal/Biomass Co-Gasification  

Science Conference Proceedings (OSTI)

The U.S. Department of Energy‘s National Energy Technology Laboratory (DOE NETL) is exploring affordable technologies and processes to convert domestic coal and biomass resources to high-quality liquid hydrocarbon fuels. This interest is primarily motivated by the need to increase energy security and reduce greenhouse gas emissions in the United States. Gasification technologies represent clean, flexible and efficient conversion pathways to utilize coal and biomass resources. Substantial experience and knowledge had been developed worldwide on gasification of either coal or biomass. However, reliable data on effects of blending various biomass fuels with coal during gasification process and resulting syngas composition are lacking. In this project, GE Global Research performed a complete characterization of the gas, liquid and solid products that result from the co-gasification of coal/biomass mixtures. This work was performed using a bench-scale gasifier (BSG) and a pilot-scale entrained flow gasifier (EFG). This project focused on comprehensive characterization of the products from gasifying coal/biomass mixtures in a high-temperature, high-pressure entrained flow gasifier. Results from this project provide guidance on appropriate gas clean-up systems and optimization of operating parameters needed to develop and commercialize gasification technologies. GE‘s bench-scale test facility provided the bulk of high-fidelity quantitative data under temperature, heating rate, and residence time conditions closely matching those of commercial oxygen-blown entrained flow gasifiers. Energy and Environmental Research Center (EERC) pilot-scale test facility provided focused high temperature and pressure tests at entrained flow gasifier conditions. Accurate matching of syngas time-temperature history during cooling ensured that complex species interactions including homogeneous and heterogeneous processes such as particle nucleation, coagulation, surface condensation, and gas-phase reactions were properly reproduced and lead to representative syngas composition at the syngas cooler outlet. The experimental work leveraged other ongoing GE R&D efforts such as biomass gasification and dry feeding systems projects. Experimental data obtained under this project were used to provide guidance on the appropriate clean-up system(s) and operating parameters to coal and biomass combinations beyond those evaluated under this project.

Maghzi, Shawn; Subramanian, Ramanathan; Rizeq, George; Singh, Surinder; McDermott, John; Eiteneer, Boris; Ladd, David; Vazquez, Arturo; Anderson, Denise; Bates, Noel

2011-09-30T23:59:59.000Z

73

Product Characterization for Entrained Flow Coal/Biomass Co-Gasification  

SciTech Connect

The U.S. Department of Energyâ??s National Energy Technology Laboratory (DOE NETL) is exploring affordable technologies and processes to convert domestic coal and biomass resources to high-quality liquid hydrocarbon fuels. This interest is primarily motivated by the need to increase energy security and reduce greenhouse gas emissions in the United States. Gasification technologies represent clean, flexible and efficient conversion pathways to utilize coal and biomass resources. Substantial experience and knowledge had been developed worldwide on gasification of either coal or biomass. However, reliable data on effects of blending various biomass fuels with coal during gasification process and resulting syngas composition are lacking. In this project, GE Global Research performed a complete characterization of the gas, liquid and solid products that result from the co-gasification of coal/biomass mixtures. This work was performed using a bench-scale gasifier (BSG) and a pilot-scale entrained flow gasifier (EFG). This project focused on comprehensive characterization of the products from gasifying coal/biomass mixtures in a high-temperature, high-pressure entrained flow gasifier. Results from this project provide guidance on appropriate gas clean-up systems and optimization of operating parameters needed to develop and commercialize gasification technologies. GEâ??s bench-scale test facility provided the bulk of high-fidelity quantitative data under temperature, heating rate, and residence time conditions closely matching those of commercial oxygen-blown entrained flow gasifiers. Energy and Environmental Research Center (EERC) pilot-scale test facility provided focused high temperature and pressure tests at entrained flow gasifier conditions. Accurate matching of syngas time-temperature history during cooling ensured that complex species interactions including homogeneous and heterogeneous processes such as particle nucleation, coagulation, surface condensation, and gas-phase reactions were properly reproduced and lead to representative syngas composition at the syngas cooler outlet. The experimental work leveraged other ongoing GE R&D efforts such as biomass gasification and dry feeding systems projects. Experimental data obtained under this project were used to provide guidance on the appropriate clean-up system(s) and operating parameters to coal and biomass combinations beyond those evaluated under this project.

Shawn Maghzi; Ramanathan Subramanian; George Rizeq; Surinder Singh; John McDermott; Boris Eiteneer; David Ladd; Arturo Vazquez; Denise Anderson; Noel Bates

2011-09-30T23:59:59.000Z

74

The Metallurgical Aspects of Hot Isotastically Pressed Superalloy ...  

Science Conference Proceedings (OSTI)

THE METALLURGICAL ASPECTS OF HOT ISOSTATICALLY. PRESSED SUPERALLOY CASTINGS. K. C. Antony. Stellite. Division,. Cabot Corporation.

75

Annual book of ASTM Standards 2008. Section Five. Petroleum products, lubricants, and fossil fuels. Volume 05.06. Gaseous fuels; coal and coke  

SciTech Connect

The first part covers standards for gaseous fuels. The second part covers standards on coal and coke including the classification of coals, determination of major elements in coal ash and trace elements in coal, metallurgical properties of coal and coke, methods of analysis of coal and coke, petrogrpahic analysis of coal and coke, physical characteristics of coal, quality assurance and sampling.

NONE

2008-09-15T23:59:59.000Z

76

CFD modeling of commercial-scale entrained-flow coal gasifiers  

SciTech Connect

Optimization of an advanced coal-fired integrated gasification combined cycle system requires an accurate numerical prediction of gasifier performance. Computational fluid dynamics (CFD) has been used to model the turbulent multiphase reacting flow inside commercial-scale entrained-flow coal gasifiers. Due to the complexity of the physical and chemical processes involved, the accuracy of sub-models requires further improvement. Built upon a previously developed CFD model for entrained-flow gasification, the advanced physical and chemical sub-models presented in this paper include a moisture vaporization model with consideration of high mass transfer rate and a coal devolatilization model with more species to represent coal volatiles and the heating rate effect on volatile yield. The global gas phase reaction kinetics is also carefully selected. To predict a reasonable peak temperature of the coal/O{sub 2} flame inside an entrained-flow gasifier, the reserve reaction of H{sub 2} oxidation is included in the gas phase reaction model. The enhanced CFD model is applied to simulate two typical commercial-scale oxygen-blown entrained-flow configurations including a single-stage down-fired gasifier and a two-stage up-fired gasifier. The CFD results are reasonable in terms of predicted carbon conversion, syngas exit temperature, and syngas exit composition. The predicted profiles of velocity, temperature, and species mole fractions inside the entrained-flow gasifier models show trends similar to those observed in a diffusion-type flame. The predicted distributions of mole fractions of major species inside both gasifiers can be explained by the heterogeneous combustion and gasification reactions and the homogeneous gas phase reactions. It was also found that the syngas compositions at the CFD model exits are not in chemical equilibrium, indicating the kinetics for both heterogeneous and gas phase homogeneous reactions are important. Overall, the results achieved here indicate that the gasifier models reported in this paper are reliable and accurate enough to be incorporated into process/CFD co-simulations of IGCC power plants for system-wide design and optimization.

Ma, J.; Zitney, S.

2012-01-01T23:59:59.000Z

77

Effect of deposits on corrosion of materials exposed in the Coal-Fired Flow Facility  

DOE Green Energy (OSTI)

Candidate heat exchanger materials tested in the Low Mass Flow train at the Coal-Fired Flow Facility (CFFF) at Tullahoma, TN. were analyzed to evaluate their corrosion performance. Tube specimens obtained at each foot of the 14-ft-long Unbend tubes were analyzed for corrosion-scale morphologies, scale thicknesses, and internal penetration depths. Results developed on 1500- and 2000- h exposed specimens were correlated with exposure temperature. In addition, deposit materials collected at several locations in the CFFF were analyzed in detail to characterize the chemical and physical properties of the deposits and their influence on corrosion performance of tube materials.

Natesan, K.

1993-05-01T23:59:59.000Z

78

CFD modeling of entrained-flow coal gasifiers with improved physical and chemical sub-models  

Science Conference Proceedings (OSTI)

Optimization of an advanced coal-fired integrated gasification combined cycle system requires an accurate numerical prediction of gasifier performance. While the turbulent multiphase reacting flow inside entrained-flow gasifiers has been modeled through computational fluid dynamic (CFD), the accuracy of sub-models requires further improvement. Built upon a previously developed CFD model for entrained-flow gasification, the advanced physical and chemical sub-models presented here include a moisture vaporization model with consideration of high mass transfer rate, a coal devolatilization model with more species to represent coal volatiles and heating rate effect on volatile yield, and careful selection of global gas phase reaction kinetics. The enhanced CFD model is applied to simulate two typical oxygen-blown entrained-flow configurations including a single-stage down-fired gasifier and a two-stage up-fired gasifier. The CFD results are reasonable in terms of predicted carbon conversion, syngas exit temperature, and syngas exit composition. The predicted profiles of velocity, temperature, and species mole fractions inside the entrained-flow gasifier models show trends similar to those observed in a diffusion-type flame. The predicted distributions of mole fractions of major species inside both gasifiers can be explained by the heterogeneous combustion and gasification reactions and the homogeneous gas phase reactions. It was also found that the syngas compositions at the CFD model exits are not in chemical equilibrium, indicating the kinetics for both heterogeneous and gas phase homogeneous reactions are important. Overall, the results achieved here indicate that the gasifier models reported in this paper are reliable and accurate enough to be incorporated into process/CFD co-simulations of IGCC power plants for systemwide design and optimization.

Ma, J.; Zitney, S.

2012-01-01T23:59:59.000Z

79

Cold flow modeling of pulverized coal combustors for magnetohydrodynamic channel applications  

DOE Green Energy (OSTI)

This report describes an experimental program and techniques for studying the internal aerodynamics of pulverized coal combustors of the type used in magnetohydrodynamic test trains at The University of Tennessee Space Institute. The combustors are modeled with small scale, cold flow models that permit both flow visualization and velocity field surveys to be performed. Water was selected as the working fluid so that the model flow fields had the same Reynolds number as the actual reactive combustors, and also to facilitate flow visualization. The systems used for flow visualization and velocity field surveying are described in detail. The velocity field survey equipment is based on a vector-velocity, laser doppler velocimeter coupled to a controllable field scanning device and a microprocessor for on-line data reduction. Results are presented that were obtained from a laser velocimeter study of recirculating flows in a combustor model. The results show that, even for exceedingly simple geometrical arrangements of oxidant injector configurations, complex three dimensional highly turbulent flow fields exist in the combustor. A brief discussion of the impact of the results on fuel injector positioning is presented.

Schulz, R.J.; Giel, T.V.; Ghosh, A.; Morris, R.D.

1984-03-01T23:59:59.000Z

80

Analysis of mass loss of a coal particle during the course of burning in a flow of inert material  

SciTech Connect

This paper is an attempt to explain the role of erosion during the process of coal combustion in a circulating fluidized bed. Different kinds of carbon deposits found in Poland, both bituminous as well as lignite with the particle of 10 mm in diameter were the subject of the research. According to many publications it is well known that erosion plays a significant role in coal combustion, by changing its mechanism as well as generating an additional mass loss of the mother particle. The purpose of this research was to determine the influence of an inert material on an erosive mass loss of a single coal particle burning in a two-phase flow. The determination of the influence of a coal type, the rate of flow of inert material and the temperature inside the furnace on the erosive mass loss of burning coal particle was also taken into consideration. The results obtained indicate that the velocity of the erosive mass loss depends on the chemical composition and petrographic structure of burning coal. The mechanical interaction of inert and burning coal particles leads to the shortening of the period of overall mass loss of the coal particle by even two times. The increase in the rate of flow of the inert material intensifies the generation of mass loss by up to 100%. The drop in temperature which slows down the combustion process, decreases the mass loss of the coal particle as the result of mechanical interaction of the inert material. As was observed, the process of percolation plays a significant role by weakening the surface of the burning coal. (author)

Pelka, Piotr [Czestochowa University of Technology, Department of Boilers and Thermodynamics, Armii Krajowej 19c, Czestochowa, Silesia 42-200 (Poland)

2009-08-15T23:59:59.000Z

Note: This page contains sample records for the topic "metallurgical coal flows" 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

Contract status report for MHD research and development and operation of the MHD Coal Fired Flow Facility for the month ending June 30, 1995  

DOE Green Energy (OSTI)

This report contains the operations schedule for the month of June 1995 at the University of Tennessee Space Institute`s Coal Fired MHD Flow Facility.

NONE

1995-08-01T23:59:59.000Z

82

Contract status report for MHD research and development and operation of the MHD coal fired flow facility for the month ending July 31, 1995  

DOE Green Energy (OSTI)

A milestone and status report is presented for the MHD coal-fired flow facility. A chart outlining the accrued project cost is also given.

NONE

1995-11-01T23:59:59.000Z

83

Contract status report for MHD research and development and operation of the MHD Coal Fired Flow Facility for the month ending May 31, 1995  

DOE Green Energy (OSTI)

This report contains the operations schedule for the month of May 1995 at the University of Tennessee Space Institute`s Coal Fired MHD Flow Facility.

NONE

1995-08-01T23:59:59.000Z

84

Construction program for a large superconducting MHD magnet system at the coal-fired flow facility  

DOE Green Energy (OSTI)

The Argonne National Laboratory has designed and is constructing a 6 T large aperture superconducting MHD magnet for use in the Coal-Fired Flow Facility (CFFF) at the University of Tennessee Space Institute (UTSI) at Tullahoma, Tennessee. The magnet system consists of the superconducting magnet, a magnet power supply, an integrated instrumentation for operation, control and protection, and a complete cryogenic facility including a CTI Model 2800 helium refrigerator/liquefier with two compressors, helium gas handling system and a 7500 liter liquid helium dewar. The complete system will be tested at Argonne, IL in 1981. The magnet design is reviewed, and the coil fabrication programs are described in detail.

Wang, S.T.; Genens, L.; Gonczy, J.; Ludwig, H.; Lieberg, M.; Kraft, E.; Gacek, D.; Huang, Y.C.; Chen, C.J.

1980-01-01T23:59:59.000Z

85

Survey and conceptual flow sheets for coal conversion plant handling-preparation and ash/slag removal operations  

Science Conference Proceedings (OSTI)

This study was undertaken at the request of the Fossil Fuel Processing Division of the Department of Energy. The report includes a compilation of conceptual flow sheets, including major equipment lists, and the results of an availability survey of potential suppliers of equipment associated with the coal and ash/slag operations that will be required by future large coal conversion plant complexes. Conversion plant flow sheet operations and related equipment requirements were based on two representative bituminous coals - Pittsburgh and Kentucky No. 9 - and on nine coal conversion processes. It appears that almost all coal handling and preparation and ash/slag removal equipment covered by this survey, with the exception of some coal comminution equipment, either is on hand or can readily be fabricated to meet coal conversion plant capacity requirements of up to 50,000 short tons per day. Equipment capable of handling even larger capacities can be developed. This approach appears to be unjustified, however, because in many cases a reasonable or optimum number of trains of equipment must be considered when designing a conversion plant complex. The actual number of trains of equipment selected will be influenced by the total requied capacity of the complex, the minimum on-line capacity that can be tolerated in case of equipment failure, reliability of specific equipment types, and the number of reactors and related feed injection stations needed for the specific conversion process.

Zapp, F.C.; Thomas, O.W.; Silverman, M.D.; Dyslin, D.A.; Holmes, J.M.

1980-03-01T23:59:59.000Z

86

Parameters affecting nitrogen oxides in a Coal-Fired Flow Facility system  

DOE Green Energy (OSTI)

The unusually high temperature in the primary combustor of the Coal-Fired Magnetohydrodynamics (MHD) power generation system causes much higher nitrogen oxides (NO{sub x}) to be produced than in a conventional coal fired generation system. In order to lower the NO{sub x} concentration to an acceptable level, it is important to know how parameters of the MM power generation system affect the NO{sub x} concentration. This thesis investigates those effects in the Coal-Fired Flow Facility (CFFF) at the University of Tennessee Space Institute under the contract of US Department Of Energy (DOE). With thermodynamic and kinetic computer codes, the theoretical studies were carried out on the parameters of the CFFF system. The results gathered from the computer codes were analyzed and compared with the experimental data collected during the LMF5J test. The thermodynamic and kinetic codes together modeled the NO.{sub x} behavior with reasonable accuracy while some inconsistencies happened at the secondary combustor inlet.

Lu, Xiaoliang

1996-03-01T23:59:59.000Z

87

AMG Advanced Metallurgical Group NV | Open Energy Information  

Open Energy Info (EERE)

AMG Advanced Metallurgical Group NV AMG Advanced Metallurgical Group NV Jump to: navigation, search Name AMG Advanced Metallurgical Group NV Place Wayne, Pennsylvania Zip 19087 Product US-based specialty metals company offering metallurgical products and vacuum furnace systems; manufactures high purity polysilicon. References AMG Advanced Metallurgical Group NV[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. AMG Advanced Metallurgical Group NV is a company located in Wayne, Pennsylvania . References ↑ "AMG Advanced Metallurgical Group NV" Retrieved from "http://en.openei.org/w/index.php?title=AMG_Advanced_Metallurgical_Group_NV&oldid=342143" Categories: Clean Energy Organizations

88

Product Characterization for Entrained Flow Coal/Biomass Co-Gasification  

DOE Green Energy (OSTI)

GEâ??s bench-scale test facility provided the bulk of high-fidelity quantitative data under temperature, heating rate, and residence time conditions closely matching those of commercial oxygen-blown entrained flow gasifiers. Energy and Environmental Research Center (EERC) pilot-scale test facility provided focused high temperature and pressure tests at entrained flow gasifier conditions. Accurate matching of syngas time-temperature history during cooling ensured that complex species interactions including homogeneous and heterogeneous processes such as particle nucleation, coagulation, surface condensation, and gas-phase reactions were properly reproduced and lead to representative syngas composition at the syngas cooler outlet. The experimental work leveraged other ongoing GE R&D efforts such as biomass gasification and dry feeding systems projects. Experimental data obtained under this project were used to provide guidance on the appropriate clean-up system(s) and operating parameters to coal and biomass combinations beyond those evaluated under this project.

Shawn Maghzi; Ramanathan Subramanian; George Rizeq; Surinder Singh; John McDermott; Boris Eiteneer; David Ladd; Arturo Vazquez; Denise Anderson; Noel Bates

2011-09-30T23:59:59.000Z

89

Product Characterization for Entrained Flow Coal/Biomass Co-Gasification  

DOE Green Energy (OSTI)

GE‘s bench-scale test facility provided the bulk of high-fidelity quantitative data under temperature, heating rate, and residence time conditions closely matching those of commercial oxygen-blown entrained flow gasifiers. Energy and Environmental Research Center (EERC) pilot-scale test facility provided focused high temperature and pressure tests at entrained flow gasifier conditions. Accurate matching of syngas time-temperature history during cooling ensured that complex species interactions including homogeneous and heterogeneous processes such as particle nucleation, coagulation, surface condensation, and gas-phase reactions were properly reproduced and lead to representative syngas composition at the syngas cooler outlet. The experimental work leveraged other ongoing GE R&D efforts such as biomass gasification and dry feeding systems projects. Experimental data obtained under this project were used to provide guidance on the appropriate clean-up system(s) and operating parameters to coal and biomass combinations beyond those evaluated under this project.

Maghzi, Shawn; Subramanian, Ramanathan; Rizeq, George; Singh, Surinder; McDermott, John; Eiteneer, Boris; Ladd, David; Vazquez, Arturo; Anderson, Denise; Bates, Noel

2011-09-30T23:59:59.000Z

90

The Life Cycle Assessment of Copper Metallurgical Processes  

Science Conference Proceedings (OSTI)

The Estimation of Waste Packaging Containers Generated by Households in Taiwan · The Life Cycle Assessment of Copper Metallurgical Processes.

91

Mathematical modelling of the flow and combustion of pulverized coal injected in ironmaking blast furnace.  

E-Print Network (OSTI)

??Pulverized coal injection (PCI) technology is widely practised in blast furnace ironmaking due to economic, operational and environmental benefits. High burnout of pulverized coal in… (more)

Shen, Yansong

2008-01-01T23:59:59.000Z

92

Method and apparatus for acoustically monitoring the flow of suspended solid particulate matter. [Patent application; monitoring char flow in coal gasifier  

DOE Patents (OSTI)

A method and apparatus for monitoring char flow in a coal gasifier system includes flow monitor circuits which measure acoustic attenuation caused by the presence of char in a char line and provides a char flow/no flow indication and an indication of relative char density. The flow monitor circuits compute the ratio of signals in two frequency bands, a first frequency band representative of background noise, and a second higher frequency band in which background noise is attenuated by the presence of char. Since the second frequency band contains higher frequencies, the ratio can be used to provide a flow/no flow indication. The second band can also be selected so that attenuation is monotonically related to particle concentration, providing a quantitative measure of char concentration.

Roach, P.D.; Raptis, A.C.

1980-11-24T23:59:59.000Z

93

The Magnetohydrodynamics Coal-Fired Flow Facility technical progress report, July 1, 1993--September 30, 1993  

DOE Green Energy (OSTI)

In this quarterly technical progress report, UTSI reports on a multi-task research contract directed toward developing the technology for an MHD steam combined cycle power plant. During the period two tests were conducted in the DOE Coal Fired FLow Facility. Both of these tests were part of the western coal proof-of-concept (POC) test series. The report describes the performance of the tests and provides some preliminary performance data on particulate removal systems during the tests. The performance of ceramic tubes being tested for high temperature air heater application is described. Performance of advanced diagnostics equipment from both UTSI and MSU is summarized. The results of experiments designed to determine the effects of potassium compounds on combustion are included. Plans for analysis of metal tube specimens previously removed from the test train are discussed. Modeling and analysis of previous test data include a deposition model to predict ash deposition on tubes, mass balance results, automated data screening and chemical analyses and the data base containing these analyses. Laboratory tests on sealing ceramic tubes and corrosion analyses of previously tested tubes are reported.

Not Available

1993-12-01T23:59:59.000Z

94

DOE-Supported Project Advances Clean Coal, Carbon Capture Technology  

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

CO2. OSU reports that the CDCL plant's 200+ hours of operation, using metallurgical coke and subbituminous and lignite coals, shows the robustness of its novel moving-bed...

95

Metallurgical Guidebook for Fossil Power Plant Boilers  

Science Conference Proceedings (OSTI)

A wide range of steels has been used to manufacture boilers and associated piping components for fossil power plants. Detailed information on the various alloys and component design considerations is contained in applicable specifications and standards, but utility personnel often need to access basic metallurgical information to support decision making for various projects. This guidebook, developed to meet this need, provides information on all of the most common boiler and piping materials.

2008-03-25T23:59:59.000Z

96

Production of iron from metallurgical waste  

DOE Patents (OSTI)

A method of recovering metallic iron from iron-bearing metallurgical waste in steelmaking comprising steps of providing an iron-bearing metallurgical waste containing more than 55% by weight FeO and FeO equivalent and a particle size of at least 80% less than 10 mesh, mixing the iron-bearing metallurgical waste with a carbonaceous material to form a reducible mixture where the carbonaceous material is between 80 and 110% of the stoichiometric amount needed to reduce the iron-bearing waste to metallic iron, and as needed additions to provide a silica content between 0.8 and 8% by weight and a ratio of CaO/SiO.sub.2 between 1.4 and 1.8, forming agglomerates of the reducible mixture over a hearth material layer to protect the hearth, heating the agglomerates to a higher temperature above the melting point of iron to form nodules of metallic iron and slag material from the agglomerates by melting.

Hendrickson, David W; Iwasaki, Iwao

2013-09-17T23:59:59.000Z

97

Technical progress report for the Magnetohydrodynamics Coal-Fired Flow Facility. January 1, 1993--March 31, 1993  

DOE Green Energy (OSTI)

Progress is reported in developing technology for steam bottoming cycle of the coal-fired MHD Steam Combined Cycle Power Plant. During this period, no testing was scheduled in the DOE Coal-Fired Flow Facility. The report covers facilities modification and maintenance in preparation for a 225 hour POC test that is scheduled for early next quarter. The modifications to the dry ESP to replace the electrodes with smaller diameter wires is discussed. Continued work on the rotary vacuum filter, which is designed to separate the more soluble potassium carbonate from the potassium sulfate and fly ash, is reported. Environmental activities for the quarter are summarized.

Not Available

1993-07-01T23:59:59.000Z

98

Coal News and Markets - Energy Information Administration  

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

Coal News and Markets Coal News and Markets Release Date: December 16, 2013 | Next Release Date: December 24, 2013 "Coal News and Markets Report" summarizes spot coal prices by coal commodity regions (i.e., Central Appalachia (CAPP), Northern Appalachia (NAPP), Illinois Basin (ILB), Powder River Basin (PRB), and Uinta Basin (UIB)) in the United States. The report includes data on average weekly coal commodity spot prices, total monthly coal production, eastern monthly coal production, electric power sector coal stocks, and average cost of metallurgical coal at coke plants and export docks. The historical data for coal commodity spot market prices are proprietary and not available for public release. Average weekly coal commodity spot prices (dollars per short ton)

99

(PhD), Metallurgical Engineering, University of Utah  

Science Conference Proceedings (OSTI)

Abstract Scope, I am Meenakshisundaram Ramanathan, doing my PhD in Metallurgical Engineering at the University of Utah, Salt Lake City, USA, under the ...

100

DOE - Office of Legacy Management -- Cooper Metallurgical Associates...  

Office of Legacy Management (LM)

Parsegian to Weil (Cooper Metallurgical) concerning thorium powder; February 16, 1954; 1 page Historical documents may contain links which are no longer valid or to outside...

Note: This page contains sample records for the topic "metallurgical coal flows" 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

TMS/ASM Joint Commission on Metallurgical Transactions  

Science Conference Proceedings (OSTI)

TMS/ASM Joint Commission on Metallurgical Transactions. The function of the Joint Commission is as follows: Consistent with the Purpose and Scope of ...

102

Metallurgical Aspects of Forge Modelling in Alloy 718  

Science Conference Proceedings (OSTI)

metallurgical structure, we consider the hammer-ram velocity .... to analyze its present production and the design of new ... element analysis of shaped lead-tin.

103

Zinkle, Seetharaman Named Editors for Metallurgical and Materials ...  

Science Conference Proceedings (OSTI)

August 21, 2013 - Warrendale, PA (USA) - The Minerals, Metals ... of two editors of Metallurgical and Materials Transactions E: Materials for Energy Systems.

104

E39: Metallurgical Examination of Impulsively Loaded Vessels  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2012. Symposium, MS&T'12 Poster Session. Presentation Title, E39: Metallurgical Examination of ...

105

Metallurgical Principles and Practice of Engineering (PE) Study Guide  

Science Conference Proceedings (OSTI)

Metallurgical Principles and Practice of Engineering (PE) Study Guide: Question #15 ... (D). The annealed material can be machined using less energy.

106

Coal - U.S. Energy Information Administration (EIA) - U.S. Energy  

Gasoline and Diesel Fuel Update (EIA)

Summary Summary The U.S. coal industry rebounded in 2010, with coal exports showing impressive gains and domestic production up over the previous year. Metallurgical coal export prices hit record levels as weather problems continued to plague Australian producers, and steel-hungry China and India continued to import relatively large amounts of metallurgical coal. U.S. domestic coal price increases moderated for the electric power sector and declined for industrial plants and for commercial and institutional users. Positive trends established in 2010 are expected to carry over to 2011. Domestic coal consumption as well as metallurgical coal exports are expected to increase as U.S. and most other industrial economies continue to grow. Coal prices should continue to increase at a moderate pace. As

107

Greenhouse gases and the metallurgical process industry  

SciTech Connect

The present lecture offers a brief review of the greenhouse effect, the sources of greenhouse gases, the potential effect of these gases on global warming, the response of the international community, and the probable cost of national compliance. The specific emissions of the metallurgical process industry, particularly those of the steel and aluminum sectors, are then examined. The potential applications of life-cycle assessments and of an input-output model in programs of emissions' abatement are investigated, and, finally, a few remarks on some implications for education are presented.

Lupis, C.H.P.

1999-10-01T23:59:59.000Z

108

Superheater/intermediate temperature airheater tube corrosion tests in the MHD Coal Fired Flow Facility (Eastern Coal Phase)  

DOE Green Energy (OSTI)

Corrosion data have been obtained for tub is exposed for 1500--2000 hours in a proof-of-concept magnetohydrodynamics (MHD) power generation test facility to conditions representative of superheater and intermediate temperature air heater (ITAH) components. The tubes, coated with K{sub 2}SO{sub 4}-rich deposits, were corroded more than in most pulverized coal fired superheater service, but much less than the highly aggressive liquid phase attack encountered in conventional plants with certain coals and temperatures. Results indicated that, with parabolic corrosion kinetics, type 310 and 253MA stainless steels should be usable to 1400F at hot end of ITAH. At final superheater temperatures, 2.25 and 5 Cr steels were indicated to have parabolic corrosion rates generally below a 0.5 mm/yr criterion, based on corrosion scale thickness. However, unknown amounts of scale loss from spallation made this determination uncertain. Stainless steels 304H, 316H, and 321H had parabolic rates variably above the criterion, but may be servicable under less cyclic conditions. Corrosion rates derived from scale thickness and intergranular corrosion depth measurements are reported, along with scale morphologies and compositions. Implications of results on commercial MHD utilization of the alloys are discussed, as well as the indicated need for more corrosion resistant alloys or coatings under the most severe exposure conditions.

White, M.K.

1993-11-01T23:59:59.000Z

109

Selenium Bioaccumulation in Stocked Fish as an Indicator of Fishery Potential in Pit Lakes on Reclaimed Coal Mines  

E-Print Network (OSTI)

on Reclaimed Coal Mines in Alberta, Canada L. L. Miller · J. B. Rasmussen · V. P. Palace · G. Sterling · A to selenium (Se) and other metals and metalloids in pit lakes formed by open pit coal mining in Tertiary (thermal coal) and in Cretaceous (metallurgical coal) bedrock. Juvenile hatchery rainbow trout

Hontela, Alice

110

Pollution control and environmental monitoring efforts at DOE's Coal-Fired Flow Facility  

DOE Green Energy (OSTI)

Proof-of-Concept (POC) scale demonstration of such technology is currently being carried out at the US Department of Energy's (DOE's) Coal-Fired Flow Facility (CFFF), located at The University of Tennessee Space Institute (UTSI) in Tullahoma, Tennessee and at the Component Development and Integration Facility in Butte, Montana. The CFFF is dedicated to the evaluation of downstream (steam cycle) components and technology that may be considered for a full-scale MHD system. The objectives of the CFFF testing include the demonstration of various pollution control devices and techniques at a scale sufficient for future scale-up. The CFFF offers a unique test environment in which emissions control techniques can be developed and evaluated through emissions and environmental monitoring. Results thus far have demonstrated the ability of sulfur oxide (SO{sub x}), nitrogen oxide (NO{sub x}) and particulate emissions well below the New Source Performance Standards (NSPS). Regeneration of the potassium sulfate to produce sulfur-free compounds also has been demonstrated. The experimental program at the CFFF is now aimed at determining the optimum conditions for future commercial scale designs. Because of increased interests in Air Toxics, measurements of nitrous oxide (N{sub 2}O), a potential greenhouse gas, priority pollutants (inorganic as well as organics), and chlorine-containing species (Cl{sub 2} and HCl) are also included in our ongoing efforts. Environmental monitoring activities are being pursued to develop an environmental impact assessment data base. These include the use of three ambient air sites to determine the impacts of gaseous and particulate emissions, five lake water sites to determine impacts due to process water discharges and seven sites to collect terrestrial data on possible soil contamination and tree growth. In this paper, we will summarize the status of our ongoing environmental program. 16 refs., 15 figs., 3 tabs.

Attig, R.C.; Crawford, L.W.; Lynch, T.P.; Sheth, A.C.

1991-01-01T23:59:59.000Z

111

Metallurgical Characteristics and Field Performances of Weld ...  

Science Conference Proceedings (OSTI)

Current talk highlights the weld overlays of a number of corrosion-resistant alloys that have been used successfully in waste-to-energy boilers, coal-fired boilers, ...

112

Metallurgical Laboratory at the University of Chicago | Department of  

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

Operational Management » History » Manhattan Project » Signature Operational Management » History » Manhattan Project » Signature Facilities » Metallurgical Laboratory at the University of Chicago Metallurgical Laboratory at the University of Chicago Photo of the Met Lab and the Stagg Field Bleachers Photo of the Met Lab and the Stagg Field Bleachers One of the most important branches of the Manhattan Project was the Metallurgical Laboratory (Met Lab) in Chicago. Using the name "Metallurgical Laboratory" as cover at the University of Chicago, scientists from the east and west coasts were brought together to this central location to develop chain-reacting "piles" for plutonium production, to devise methods for extracting plutonium from the irradiated uranium, and to design a weapon. In all, four methods of plutonium

113

DOE - Office of Legacy Management -- Fansteel Metallurgical Corp - IL 16  

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

Fansteel Metallurgical Corp - IL 16 Fansteel Metallurgical Corp - IL 16 FUSRAP Considered Sites Site: Fansteel Metallurgical Corp. (IL.16 ) Eliminated from further consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: Chicago , Illinois IL.16-1 Evaluation Year: 1987 IL.16-3 Site Operations: Sole producer and supplier of tantalum and columbium metals to the MED. IL.16-1 IL.16-3 Site Disposition: Eliminated - No radioactive materials handled at this site IL.16-2 IL.16-3 Radioactive Materials Handled: No Primary Radioactive Materials Handled: None IL.16-2 Radiological Survey(s): No Site Status: Eliminated from further consideration under FUSRAP Also see Documents Related to Fansteel Metallurgical Corp. IL.16-1 - MED Memorandum; Greninger to the File; Subject: Visit to

114

Revised market guide for coal exports from the United States  

SciTech Connect

The world market for steam coal is assessed. In recent years, much has changed in the world coal markets and in the expected opportunities for coal exports from the US. As an example, the overseas steam coal exports climbed from about 2 million tons in 1979 to about 35 million tons in 1981. Since then the overseas steam coal exports have fallen to 27 million tons in 1982 and to 17 million tons in 1983. In addition, metallurgical coal exports to overseas customers dropped from 60 million tons in 1982 to 43 million tons in 1983. This market guide is divided into four sections: Section one contains a review of the most frequently asked questions by individuals interested in the overseas coal markets and the role of US producers in this market; Section two contains an overview of the market for US steam and metallurgical coal exports, including forecasts of import demands, potential US market share, and the factors affecting this market share; Section three contains an outline of the current structure of the steam coal export trade in the US and the potential developments that will influence its future, and Section four contains a review of the important data on the nature of the energy-using industries, utilities and power plants, cement plants, coal quality requirements, and ports of the major steam and metallurgical coal importing countries. 14 figures, 45 tables.

1984-06-01T23:59:59.000Z

115

Coal Severance Tax (Montana) | Department of Energy  

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

coal taxes to: (a) allow the severance taxes on coal production to remain a constant percentage of the price of coal; (b) stabilize the flow of tax revenue from coal mines to local...

116

Analysis of char-slag interaction and near-wall particle segregation in entrained-flow gasification of coal  

SciTech Connect

The fate of carbon particles during entrained-flow gasification of coal in the slagging regime is analyzed. More specifically, the study addresses the relevance of segregation of carbon particles in a near-wall region of the gasifier to coal conversion. Segregation of carbon particles is analyzed considering the effects of turbulence- and swirl-promoted particle migration toward the wall, interaction of the impinging particles with the wall ash layer, coverage of the slag layer by refractory carbon particles, accumulation of carbon particles in a dense-dispersed phase near the wall of the gasifier. Operating conditions of the gasifier and slag properties may be combined so as to give rise to a variety of conversion regimes characterized by distinctively different patterns of carbon particles segregation. A simple 1D model of an entrained-flow gasifier has been developed based on the conceptual framework of carbon particle segregation. The model aims at providing a general assessment of the impact of the different patterns of carbon particle segregation on the course and extent of carbon gasification. A sensitivity analysis with reference to selected model parameters is performed to identify key processes controlling carbon segregation and their impact on the gasifier performance. (author)

Montagnaro, Fabio [Dipartimento di Chimica, Universita degli Studi di Napoli Federico II, Complesso Universitario del Monte di Sant'Angelo, 80126 Napoli (Italy); Salatino, Piero [Dipartimento di Ingegneria Chimica, Universita degli Studi di Napoli Federico II and Istituto di Ricerche sulla Combustione, CNR, Piazzale Vincenzo Tecchio 80, 80125 Napoli (Italy)

2010-05-15T23:59:59.000Z

117

THE COMBUSTION OF SOLVENT REPINED COAL IN AN OPPOSED FLOW DIFFUSION FLAME  

E-Print Network (OSTI)

of counterflow diffusion flames above condensed fuels.IN AN OPPOSED FLOW DIFFUSION FLAME* W.K. Chin R.F. Sawyeropposed flow diffusion flame burner. An earlier experimental

Chin, W.K.

2011-01-01T23:59:59.000Z

118

Disaggregating regional energy supply/demand and flow data to 173 BEAs in support of export coal analysis. Final report  

SciTech Connect

This report documents the procedures and results of a study sponsored jointly by the US Department of Transportation and the US Department of Energy. The study was conducted to provide, Bureau of Economic Analysis (BEA)-level production/consumption data for energy materials for 1985 and 1990 in support of an analysis of transportation requirements for export coal. Base data for energy forecasts at the regional level were obtained from the Department of Energy, Energy Information Administration. The forecasts selected for this study are described in DOE/EIA's 1980 Annual Report to Congress, and are: 1985 Series, B, medium oil import price ($37.00/barrel); and 1990 Series B, medium oil import price ($41.00/barrel). Each forecast period is extensively described by approximately forty-three statistical tables prepared by EIA and made available to TERA for this study. This report provides sufficient information to enable the transportation analyst to appreciate the procedures employed by TERA to produce the BEA-level energy production/consumption data. The report presents the results of the procedures, abstracts of data tabulations, and various assumptions used for the preparation of the BEA-level data. The end-product of this effort was the BEA to BEA energy commodity flow data by more which serve as direct input to DOT's transportation network model being used for a detailed analysis of export coal transportation.

1981-06-01T23:59:59.000Z

119

DOE - Office of Legacy Management -- Ohio State University Metallurgical  

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

Ohio State University Metallurgical Ohio State University Metallurgical Engineering Experiment Station -OH 0-05 FUSRAP Considered Sites Site: OHIO STATE UNIVERSITY, METALLURGICAL ENGINEERING EXPERIMENT STATION (OH.0-05 ) Eliminated from consideration under FUSRAP - Referred to NRC Designated Name: Not Designated Alternate Name: None Location: Columbus , Ohio OH.0-05-1 Evaluation Year: 1986 OH.0-05-2 Site Operations: Ohio State ordered 130 grams of uranium from the AEC. This commercial supply order was filled by Fernald. OH.0-05-1 OH.0-05-3 Site Disposition: Eliminated - AEC/NRC licensed operation OH.0-05-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium OH.0-05-1 OH.0-05-3 Radiological Survey(s): None Indicated Site Status: Eliminated from consideration under FUSRAP - Referred to NRC

120

Podolsky Chemical and Metallurgical Plant PCMP | Open Energy Information  

Open Energy Info (EERE)

Podolsky Chemical and Metallurgical Plant PCMP Podolsky Chemical and Metallurgical Plant PCMP Jump to: navigation, search Name Podolsky Chemical and Metallurgical Plant (PCMP) Place Moscow, Russian Federation Zip 142103 Sector Solar Product Russian manufacturer of monocrystalline silicon ingots, wafers, cells and quartz crucibles; serves both solar and semiconductor industries. Coordinates 55.75695°, 37.614975° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":55.75695,"lon":37.614975,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "metallurgical coal flows" 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

Letter Report on Metallurgical Examination of the High Fluence RPV  

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

Report on Metallurgical Examination of the High Fluence RPV Report on Metallurgical Examination of the High Fluence RPV Specimens From the Ringhals Nuclear Reactors Letter Report on Metallurgical Examination of the High Fluence RPV Specimens From the Ringhals Nuclear Reactors Regulations which govern the operation of commercial nuclear power plants require conservative margins of fracture toughness, both during normal operation and under accident scenarios. In the irradiated condition, the fracture toughness of the RPV may be severely degraded, with the degree of toughness loss dependent on the radiation sensitivity of the materials. As stated in previous progress reports, the available embrittlement predictive models, e.g. [1], and our present understanding of radiation damage are not fully quantitative, and do not treat all potentially significant variables

122

Foreign Distribution of U.S. Coal by Major Coal-Exporting States and Destination  

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

2 2 (Thousand Short Tons) " " Coal-Exporting State and Destination ",,"Metallurgical ","Steam ","Total "," " "Alabama ",,3977,"-",3977," " ," Argentina ",225,"-",225," " ," Belgium ",437,"-",437," " ," Brazil ",1468,"-",1468," " ," Bulgaria ",75,"-",75," " ," Egypt ",363,"-",363," " ," Germany ",71,"-",71," " ," Italy ",61,"-",61," " ," Netherlands ",219,"-",219," " ," Spain ",415,"-",415," " ," Turkey ",362,"-",362," "

123

Metallurgical Evaluation of the Five-Inch Cylindrical Induction Melter  

SciTech Connect

A metallurgical evaluation of the 5-inch cylindrical induction melter (CIM) vessel was performed by the Materials Technology Section to evaluate the metallurgical condition after operating for approximately 375 hours at 1400 to 1500 Degrees Celsius during a 2 year period. Results indicate that wall thinning and significant grain growth occurred in the lower portion of the conical section and the drain tube. No through-wall penetrations were found in the cylindrical and conical sections of the CIM vessel and only one leak site was identified in the drain tube. Failure of the drain tube was associated with a localized over heating and intercrystalline fracture.

Imrich, K.J.

2000-08-15T23:59:59.000Z

124

Technical progress report for the magnetohydrodynamics Coal-Fired Flow Facility for the period April 1, 1993--June 30, 1993  

DOE Green Energy (OSTI)

In this quarterly technical progress report, UTSI reports on progress on a multitask contract to develop the necessary technology for the steam bottoming plant of the MHD Steam Combined Cycle power plant. A Proof-Of-Concept (POC) test was conducted during the quarter and the results are reported. This POC test was terminated after 88 hours of operation due to the failure of the coal pulverizer main shaft. Preparations for the test and post-test activities are summarized. Modifications made to the dry electrostatic precipitator (ESP) are described and measurements of its performance are reported. The baghouse performance is summarized, together with actions being taken to improve bag cleaning using reverse air. Data on the wet ESP performance is included at two operating conditions, including verification that it met State of Tennessee permit conditions for opacity with all the flow through it. The results of experiments to determine the effect of potassium seed on NO{sub x} emissions and secondary combustion are reported. The status of efforts to quantify the detailed mass balance for all POC testing is summarized. The work to develop a predictive ash deposition model is discussed and results compared with deposition actually encountered during the test. Plans to measure the kinetics of potassium and sulfur on flames like the secondary combustor, are included. Advanced diagnostic work by both UTSI and MSU is reported. Efforts to develop the technology for a high temperature air heater using ceramic tubes are summarized.

Not Available

1993-10-01T23:59:59.000Z

125

Geomechanics of coal-gas interactions : the role of coal permeability evolution.  

E-Print Network (OSTI)

??[Truncated abstract] Complex interactions between stress and sorptive chemistry exert strong influence on coal geomechanics. These include influences on gas sorption and flow, coal deformation,… (more)

Chen, Zhongwei

2012-01-01T23:59:59.000Z

126

Annual Coal Distribution Tables  

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

Foreign Distribution of U.S. Coal by Major Coal-Exporting States and Foreign Distribution of U.S. Coal by Major Coal-Exporting States and Destination, 2001 Coal-Exporting State and Destination Metallurgical Steam Total Alaska - 761 761 South Korea - 761 761 Alabama 4,667 167 4,834 Argentina 155 - 155 Belgium 989 - 989 Brazil 1,104 - 1,104 Bulgaria 82 - 82 Egypt 518 - 518 Italy 115 - 115 Netherlands 56 83 139 Spain 412 84 496 Turkey 581 - 581 United Kingdom 654 - 654 Kentucky 2,130 - 2,130 Canada 920 - 920 France 22 - 22 Iceland 9 - 9 Italy 430 - 430 Netherlands 417 - 417 Spain 9 - 9 United Kingdom 323 - 323 Pennsylvania 1,086 14,326 15,722 Belgium - 203 203 Brazil 372 - 373 Canada - 12,141 12,418 France - 84 84 Germany 495 165 661 Ireland - 136 136 Netherlands 219 879 1,097 Norway - - 7 Peru - - 21 Portugal - 634 634 United Kingdom - 85 85 Venezuela - - 3 Utah - 1,420 1,420 Japan - 1,334 1,334 Taiwan - 86 86 Virginia 4,531

127

Coke quality for blast furnaces with coal-dust fuel  

SciTech Connect

Recently, plans have been developed for the introduction of pulverized coal injection (PCI) at various Russian metallurgical enterprises. The main incentive for switching to PCI is the recent price rises for Russian natural gas. The paper discusses the quality of coke for PCI into blast furnaces.

Y.A. Zolotukhin; N.S. Andreichikov [Eastern Coal-Chemistry Institute, Yekaterinburg (Russian Federation)

2009-07-01T23:59:59.000Z

128

PRELIMINARY SURVEY OF SYLVANIA-CORNING NUCLEAR CORPORATION METALLURGICAL LABORATORY  

Office of Legacy Management (LM)

SYLVANIA-CORNING NUCLEAR CORPORATION SYLVANIA-CORNING NUCLEAR CORPORATION METALLURGICAL LABORATORY BAYSIDE, NEW YORK Work performed by the Health and Safety Research Division Oak Ridge National Laboratory Oak Ridge, Tennessee 37830 March 1980 OAK RIDGE NATIONAL LABORATORY operated by UNION CARBIDE CORPORATION for the DEPARTMENT OF ENERGY as part of the Formerly Utilized Sites-- Remedial Action Program SYLVANIA-CORNING NUCLEAR CORPORATION METALLURGICAL LABORATORY BAYSIDE, NEW YORK At the request of the Department of Energy (DOE), a preliminary survey was performed at the former Sylvania-Corning Nuclear Corporation in Bayside, New York (see Fig. l), on November 29, 1977, to assess the radiological status of those facilities uti 7 Commission (AEC) contract during the 1950s. _ _ ._. __

129

Metallurgical evaluation of a failed LP turbine disc. Final report  

SciTech Connect

A metallurgical evaluation of a burst disc from the LP turbine at the Yankee Rowe nuclear generating station was performed. The turbine failure incident involves catastrophic rupture of both No. 1 discs during a start-up. The objectives of the evaluation were to characterize the disc materials and identify the cacking mechanism and other metallurgical factors involved in the failure. Metallographic and fractographic examinations of one segment of the No. generator-end disc were performed. The mechanical properties and composition of the disc segment were also determined. The investigation established that the radial fracture in the disc segment initiated at a service-induced crack and was of a generally brittle character. Also, numerous subcritical cracks were observed in the bore surface.

Burghard, H.C. Jr.

1982-12-01T23:59:59.000Z

130

DESULFURIZATION OF COAL MODEL COMPOUNDS AND COAL LIQUIDS  

E-Print Network (OSTI)

of coal sulfur K-T gasification process SRC I process U. S.flow sheet of a K-T coal gasification complex for producingProduction via K-T Gasification" © CEP Aug. 78. Feed

Wrathall, James Anthony

2011-01-01T23:59:59.000Z

131

The estimation and management of cost over the life cycle of metallurgical research projects.  

E-Print Network (OSTI)

?? The purpose of this study is to determine whether all costs over the life cycle of metallurgical research projects are included in the initial… (more)

Odendaal, Maria Magdalena

2009-01-01T23:59:59.000Z

132

Assessment of Paper-Insulated Lead-Covered Cable Condition: Electrical, Chemical, and Metallurgical Condition  

Science Conference Proceedings (OSTI)

This report summarizes the investigation of electrical, chemical, and metallurgical tests used to evaluate the condition of paper-insulated lead-covered (PILC) medium-voltage cables.

2003-02-25T23:59:59.000Z

133

Future Impacts of Coal Distribution Constraints on Coal Cost  

E-Print Network (OSTI)

million tons of coal in 2030, up from about 1,150 million2030 .Figure 42: Projected annual tonnage flows in 2030, Scenario

McCollum, David L

2007-01-01T23:59:59.000Z

134

Foreign Distribution of U.S. Coal by Major Coal-Exporting States and Destination  

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

3" 3" "(Thousand Short Tons)" "Coal-Exporting State and Destination ",,"Metallurgical ","Steam ","Total " "Alabama ",,5156,"-",5156 ,"Argentina ",345,"-",345 ,"Belgium ",387,"-",387 ,"Brazil ",1825,"-",1825 ,"Bulgaria ",363,"-",363 ,"Egypt ",477,"-",477 ,"Germany ",167,"-",167 ,"Italy ",87,"-",87 ,"Netherlands ",399,"-",399 ,"Spain ",198,"-",198 ,"Turkey ",551,"-",551 ,"United Kingdom ",359,"-",359 "Kentucky ",,1449,"-",1449 ,"Canada ",566,"-",566

135

Energy conservation and efficiency in Giprokoks designs at Ukrainian ferrous-metallurgical enterprises  

SciTech Connect

Energy conditions at Ukrainian ferrous-metallurgical enterprises are analyzed. Measures to boost energy conservation and energy efficiency are proposed: specifically, the introduction of systems for dry slaking of coke; and steam-gas turbines that employ coke-oven gas or a mixture of gases produced at metallurgical enterprises. Such turbines may be built from Ukrainian components.

M.I. Fal'kov [Giprokoks, the State Institute for the Design of Coke-Industry Enterprises, Kharkov (Ukraine)

2009-07-15T23:59:59.000Z

136

Superheater/intermediate temperature air heater tube corrosion tests in the MHD coal fired flow facility (Montana Rosebud POC tests)  

DOE Green Energy (OSTI)

Nineteen alloys have been exposed for approximately 1000 test hours as candidate superheater and intermediate temperature air heater tubes in a U.S. DOE facility dedicated to demonstrating Proof of Concept for the bottoming or heat and seed recovery portion of coal fired magnetohydrodynamic (MHD) electrical power generating plants. Corrosion data have been obtained from a test series utilizing a western United States sub-bituminous coal, Montana Rosebud. The test alloys included a broad range of compositions ranging from carbon steel to austenitic stainless steels to high chromium nickel-base alloys. The tubes, coated with K{sub 2}SO-containing deposits, developed principally, oxide scales by an oxidation/sulfidation mechanism. In addition to being generally porous, these scales were frequently spalled and/or non-compact due to a dispersed form of outward growth by oxide precipitation in the adjacent deposit. Austenitic alloys generally had internal penetration as trans Tranular and/or intergranular oxides and sulfides. While only two of the alloys had damage visible without magnification as a result of the relatively short exposure, there was some concern about Iona-term corrosion performance owing to the relatively poor quality scales formed. Comparison of data from these tests to those from a prior series of tests with Illinois No. 6, a high sulfur bituminous coal, showed less corrosion in the present test series with the lower sulfur coal. Although K{sub 2}SO{sub 4}was the principal corrosive agent as the supplier of sulfur, which acted to degrade alloy surface scales, tying up sulfur as K{sub 2}SO{sub 4} prevented the occurrence of complex alkali iron trisulfates responsible for severe or catastrophic corrosion in conventional power plants with certain coals and metal temperatures.

White, M.

1996-01-01T23:59:59.000Z

137

Research on Automatically Identification of Diagonal Air-flow Branches of Complex Ventilation System of Coal Mines  

Science Conference Proceedings (OSTI)

air-flow branches identification and stability analysis is one of the core contents of stability and reliability theory of mine ventilation system. This current paper takes deeply research on diagonal air-flow branches. Limitations of the path method ... Keywords: diagonal air-flow branch, path collection, path method, node-position method

Feng Cai, Zegong Liu

2012-07-01T23:59:59.000Z

138

METALLURGICAL EVALUATION OF CAST DUPLEX STAINLESS STEELS AND THEIR WELDMENTS  

Office of Scientific and Technical Information (OSTI)

FINAL REPORT FINAL REPORT VOLUME 1 METALLURGICAL EVALUATION OF CAST DUPLEX STAINLESS STEELS AND THEIR WELDMENTS SUBMITTED TO U. S. DEPARTMENT OF ENERGY Award Number - DE-FC36-00 ID13975 OCTOBER 1, 2000 - SEPTEMBER 30, 2005 SONGQING WEN CARL D. LUNDIN GREG BATTEN MATERIALS JOINING GROUP MATERIALS SCIENCE AND ENGINEERING THE UNIVERSITY OF TENNESSEE, KNOXVILLE CARL D. LUNDIN PROFESSOR OF METALLURGY MATERIALS JOINING GROUP MATERIALS SCIENCE AND ENGINEERING THE UNIVERSITY OF TENNESSEE KNOXVILLE 37996-2200 TELEPHONE (865) 974-5310 FAX (865) 974-0880 lundin@utk.edu This is Volume 1of 5 of the final report for The Department of Energy Grant # DE-FC36-00 ID13975 entitled "Behavior of Duplex Stainless Steel Castings." ii FOREWARD

139

Decommissioning of the Special Metallurgical Building at Mound Laboratory  

SciTech Connect

The Special Metallurgical Building at Mound Laboratory, a building of 18,515 sq ft of floor space, was decommissioned. This decommissioned facility formerly housed 238PU processes for the fabrication of radioisotopic fueled heat sources. The 238PU work was conducted in 585 linear ft of gloveboxes occupying approximately 12,600 sq ft of the building. All of the gloveboxes, process services, building services, interior walls, and ceilings were removed to the point of exit at the roof. Eighty-five percent of the filter banks occupying 700 sq ft of floor space was also removed. Special procedures and special equipment were used to reduce the amount of 238PU in the building from approximately 100,000 Ci at the start of the effort to less than 0.3 Ci without a significant release to the environment.

Harris, W. R.; Kokenge, B. R.; Marsh, G. C.

1965-12-31T23:59:59.000Z

140

The metallurgical integrity of the frit vent assembly diffusion bond  

DOE Green Energy (OSTI)

Iridium alloy clad vent sets (CVSs) are now being made by Energy Systems at the Oak Ridge Y-12 Plant. These CVSs are being made for the US Department of Energy`s (NE-53) General Purpose Heat Source- Radioisotope Thermoelectric Generator (GPHS-RTG) program, which is to supply electrical power for the National Aeronautics and Space Administration`s Cassini mission to Saturn. A GPHS-RTG has 72 CVSs. Each CVS encapsulates one {sup 238}PuO{sub 2} fuel pellet. The helium gas produced from the alpha decay of the {sup 238}Pu is vented through a nominal 0.45-mm-diam hole in the vent cup of each CVS. A frit vent assembly that is electron beam welded over the vent hole allows helium gas to escape but prevents plutonia fines from exiting. The metallurgical integrity of frit vent assemblies produced by Martin Marietta Energy Systems, Inc. (Energy Systems) were compared with those produced earlier by EG&G-Mound Applied Technology, Inc. (EG&G-MAT). Scanning electron microscope (SEM) photographs were taken (at magnifications of from 126X to 1,000X) of the starting frit vent powder and the diffusion-bonded powder in finished frit vent assemblies produced by Energy Systems and EG&G-MAT. Frit vent assemblies also were metallographically prepared and visually examined/photographed at magnifications of from 50X to 1,000X. The SEM and metallographic examinations of the particle-to-particle and particle-to-foil component diffusion bonds indicated that the Energy Systems-produced and EG&G-MAT-produced frit vent assemblies have comparable metallurgical integrity. Statistical analysis of the Energy Systems production data shows that the frit vent manufacturing yield is 91%.

Ulrich, G.B. [Oak Ridge Y-12 Plant, TN (United States). Process Metallurgy Dept.

1994-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "metallurgical coal flows" 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

Technical progress report for the Magnetohydrodynamics Coal-Fired Flow Facility: October 1, 1992--December 31, 1992  

DOE Green Energy (OSTI)

Progress is reported on a multitask contract to develop technology for steam bottoming cycle of a Combined Cycle MHD Steam Power Plant. The report describes a 314 hour proof-of-concept (POC) test completed during the quarter. Results include secondary combustion and effect of potassium on the light-off temperature, fouling of heat transfer surfaces, particulate clean-up device performance and advanced diagnostic system performance. Test results on ceramic materials and tubes directed toward the development of a high temperature recuperative air heater are summarized. Results of data analysis of previous tests that are reported include the continuing analysis of tube materials that were exposed to 1500 and 2000 hours of eastern coal fired operation during the previously completed 2000 hour POC test series on eastern, high sulfur coal.

Not Available

1993-06-01T23:59:59.000Z

142

Co-Gasification Behavior of Metallurgical Coke with High and Low ...  

Science Conference Proceedings (OSTI)

The co-gasification behavior of highly and lowly reactive coke for blast furnace is investigated. ... Chemical Enrichment of Precious Metals in Iron Sulfides Using Microwave Energy .... Thermal Plasma Torches for Metallurgical Applications.

143

Impact of finite-rate kinetics on carbon conversion in a single-stage entrained flow gasifier with coal-CO2 slurry feed  

E-Print Network (OSTI)

with coal-CO2 slurry feed Cristina Botero , Randall P. Field, Howard J. Herzog, Ahmed F. Ghoniem Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 Abstract Coal-CO2 slurry feed has been suggested as an attractive alternative to coal-water slurry feed for single

144

Analysis of HEU samples from the ULBA Metallurgical Plant  

SciTech Connect

In early March 1994, eight highly enriched uranium (HEU) samples were collected from materials stored at the Ulba Metallurgical Plant in Oskamen (Ust Kamenogorsk), Kazakhstan. While at the plant site, portions of four samples were dissolved and analyzed by mass spectrograph at the Ulba analytical laboratory by Ulba analysts. Three of these mass spectrograph solutions and the eight HEU samples were subsequently delivered to the Y-12 Plant for complete chemical and isotopic analyses. Chemical forms of the eight samples were uranium metal chips, U0{sub 2} powder, uranium/beryllium oxide powder, and uranium/beryllium alloy rods. All were declared by the Ulba plant to have a uranium assay of {approximately}90 wt % {sup 235}U. The uranium/beryllium powder and alloy samples were also declared to range from about 8 to 28 wt % uranium. The chemical and uranium isotopic analyses done at the Y-12 Plant confirm the Ulba plant declarations. All samples appear to have been enriched using some reprocessed uranium, probably from recovery of uranium from plutonium production reactors. As a result, all samples contain some {sup 236}U and {sup 232}U and have small but measurable quantities of plutonium. This plutonium could be the result of either contamination carried over from the enrichment process or cross-contamination from weapons material. It is not the result of direct reactor exposure. Neither the {sup 232}U nor the plutonium concentrations are sufficiently high to provide a significant industrial health hazard. Both are well within established or proposed acceptance criteria for storage at Y-12. The trace metal analyses showed that, with the exception of beryllium, there are no trace metals in any of these HEU samples that pose a significant health hazard.

Gift, E.H.

1995-05-01T23:59:59.000Z

145

7-29 A coal-burning power plant produces 300 MW of power. The amount of coal consumed during a one-day period and the rate of air flowing through the furnace are to be determined.  

E-Print Network (OSTI)

7-11 7-29 A coal-burning power plant produces 300 MW of power. The amount of coal consumed during The heating value of the coal is given to be 28,000 kJ/kg. Analysis (a) The rate and the amount of heat inputs'tQQ The amount and rate of coal consumed during this period are kg/s48.33 s360024 kg10893.2 MJ/kg28 MJ101.8 6

Bahrami, Majid

146

Technical progress report for the Magnetohydrodynamics Coal-Fired Flow Facility, October 1, 1993--December 31, 1993  

DOE Green Energy (OSTI)

In this quarterly technical progress report, UTSI reports on progress in developing the technology for the steam bottoming portion of the MHD Steam Combined Cycle power plant. The experimental program was effectively terminated and reoriented to preparation of reports on previous tests and maintaining the DOE facility. In this report, the results of tube corrosion studies for the samples removed after 500 hours of western coal testing are summarized. Plans for evaluating the tube samples after termination of the tests at 1,047 hours are discussed. The status of development of models to predict ash deposition on conductive heat transfer tubes and their validation with experimental data is presented. Modeling and experiments to induce agglomeration of particulate are also discussed. Significant accomplishments, findings and conclusions include: In summary, corrosion measurements on typical, commercial stainless steels and on low and intermediate chromium steels after 639 hours of LMF5 exposure in the SHTM test sections revealed corrosion that was generally acceptable in magnitude if corrosion kinetics are parabolic, but, except for the higher chromium alloys 253MA and 310, not if kinetics are linear. The production of bilayer scales, and the large amount of scale separation and fragmentation make long term parabolic kinetics unlikely, and result in a high likelihood for breakaway corrosion.

Not Available

1994-06-01T23:59:59.000Z

147

Final design of a superconducting MHD magnet for the Coal-Fired Flow Facility at the University of Tennessee Space Institute  

DOE Green Energy (OSTI)

The superconducting magnet system (SCMS) consisting of the superconducting magnet, magnet cryostat, a helium refrigerator/liquefier facility, a helium gas-handling system, apparatus for cryogenic transfer and storage, a magnet power supply, a integrated instrumentation and control system including a computer for magnet operation, data acquisition, system status and diagnosis, and magnet protection is described. The complete system will be tested at Argonne and installed at the Coal-Fired Flow Facility (CFFF) at the University of Tennessee Space Institute (UTSI) in 1981. The coil configuration is the US SCMS type circular saddle. The coil wil be assembled on the magnet tube with spiral banding. The bore tube will be about 6.3 cm thick (in the thickest section) and the banding will be strong enough for coil assembly but too weak to transmit the 30,180 kgf/cm maximum burst force to the bore tube. Fifteen ring girders will be used as the superstructure to contain the force. The decentering force of about 0.2177 x 10/sup 6/ kgf will be taken up by end flanges and bore tubes.

Wang, S T; Turner, L R; Genens, L; Pelczarski, W; Hoffman, J; Gonczy, J; Ludwig, H; Niemann, R C; Mataya, K; Kraft, E

1979-01-01T23:59:59.000Z

148

DOE - Office of Legacy Management -- Oregon Metallurgical Corp - OR 0-02  

Office of Legacy Management (LM)

Oregon Metallurgical Corp - OR 0-02 Oregon Metallurgical Corp - OR 0-02 FUSRAP Considered Sites Site: OREGON METALLURGICAL CORP. ( OR.0-02 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: Albany , Oregon OR.0-02-1 Evaluation Year: 1994 OR.0-02-2 OR.0-02-3 Site Operations: Research and development of uranium alloy processes in the 1940s and 1950s. OR.0-02-1 Site Disposition: Eliminated - AEC licensed - Potential for contamination remote based on limited quantity of materials handled OR.0-02-1 OR.0-02-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Enriched Uranium, Zirconium OR.0-02-1 Radiological Survey(s): None Indicated Site Status: Eliminated from consideration under FUSRAP Also see

149

Process for electrochemically gasifying coal  

DOE Patents (OSTI)

A process is claimed for electrochemically gasifying coal by establishing a flowing stream of coal particulate slurry, electrolyte and electrode members through a transverse magnetic field that has sufficient strength to polarize the electrode members, thereby causing them to operate in combination with the electrolyte to electrochemically reduce the coal particulate in the slurry. Such electrochemical reduction of the coal produces hydrogen and carbon dioxide at opposite ends of the polarized electrode members. Gas collection means are operated in conjunction with the process to collect the evolved gases as they rise from the slurry and electrolyte solution. 7 figs.

Botts, T.E.; Powell, J.R.

1985-10-25T23:59:59.000Z

150

Process for treating moisture laden coal fines  

SciTech Connect

A process is provided for making a free flowing granular product from moisture laden caked coal fines, such as wet cake, by mixing a water immiscible substance, such as oil, with the caked coal, preferably under low shear forces for a period of time sufficient to produce a plurality of free flowing granules. Each granule is preferably comprised of a dry appearing admixture of one or more coal particle, 2-50% by weight water and the water immiscible substance.

Davis, Burl E. (New Kensington, PA); Henry, Raymond M. (Gibsonia, PA); Trivett, Gordon S. (South Surrey, CA); Albaugh, Edgar W. (Birmingham, AL)

1993-01-01T23:59:59.000Z

151

NETL: Clean Coal Demonstrations - Coal 101  

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

Clean Coal 101 Lesson 1: Cleaning Up Coal Clean Coal COAL is our most abundant fossil fuel. The United States has more coal than the rest of the world has oil. There is still...

152

Energy efficiency of alternative coke-free metallurgical technologies  

SciTech Connect

Energy analysis is undertaken for the blast-furnace process, for liquid-phase processes (Corex, Hismelt, Romelt), for solid-phase pellet reduction (Midrex, HYL III, LP-V in a shaft furnace), for steel production in systems consisting of a blast furnace and a converter, a Midrex unit and an arc furnace, or a Romelt unit and an arc furnace, and for scrap processing in an arc furnace or in an LP-V shaft furnace. Three blast-furnace processes with sinter and coke are adopted as the basis of comparison, as in: the standard blast-furnace process used in Russia; the improved blast-furnace process with coal-dust injection; and the production of vanadium hot metal from vanadium-bearing titanomagnetite ore (with a subsequent duplex process, ferrovanadium production, and its use in the arc furnace).

V.G. Lisienko; A.V. Lapteva; A.E. Paren'kov [Ural State Technical University - Ural Polytechnic Institute, Yekaterinburg (Russian Federation)

2009-02-15T23:59:59.000Z

153

Coal pump  

DOE Patents (OSTI)

A device for pressurizing pulverized coal and circulating a carrier gas is disclosed. This device has utility in a coal gasification process and eliminates the need for a separate collection hopper and eliminates the separate compressor.

Bonin, John H. (Sunnyvale, CA); Meyer, John W. (Palo Alto, CA); Daniel, Jr., Arnold D. (Alameda County, CA)

1983-01-01T23:59:59.000Z

154

Process for heating coal-oil slurries  

DOE Patents (OSTI)

Controlling gas to slurry volume ratio to achieve a gas holdup of about 0.4 when heating a flowing coal-oil slurry and a hydrogen containing gas stream allows operation with virtually any coal to solvent ratio and permits operation with efficient heat transfer and satisfactory pressure drops. The critical minimum gas flow rate for any given coal-oil slurry will depend on numerous factors such as coal concentration, coal particle size distribution, composition of the solvent (including recycle slurries), and type of coal. Further system efficiency can be achieved by operating with multiple heating zones to provide a high heat flux when the apparent viscosity of the gas saturated slurry is highest. Operation with gas flow rates below the critical minimum results in system instability indicated by temperature excursions in the fluid and at the tube wall, by a rapid increase and then decrease in overall pressure drop with decreasing gas flow rate, and by increased temperature differences between the temperature of the bulk fluid and the tube wall. At the temperatures and pressures used in coal liquefaction preheaters the coal-oil slurry and hydrogen containing gas stream behaves essentially as a Newtonian fluid at shear rates in excess of 150 sec[sup [minus]1]. The gas to slurry volume ratio should also be controlled to assure that the flow regime does not shift from homogeneous flow to non-homogeneous flow. Stable operations have been observed with a maximum gas holdup as high as 0.72. 29 figs.

Braunlin, W.A.; Gorski, A.; Jaehnig, L.J.; Moskal, C.J.; Naylor, J.D.; Parimi, K.; Ward, J.V.

1984-01-03T23:59:59.000Z

155

Process for heating coal-oil slurries  

DOE Patents (OSTI)

Controlling gas to slurry volume ratio to achieve a gas holdup of about 0.4 when heating a flowing coal-oil slurry and a hydrogen containing gas stream allows operation with virtually any coal to solvent ratio and permits operation with efficient heat transfer and satisfactory pressure drops. The critical minimum gas flow rate for any given coal-oil slurry will depend on numerous factors such as coal concentration, coal particle size distribution, composition of the solvent (including recycle slurries), and type of coal. Further system efficiency can be achieved by operating with multiple heating zones to provide a high heat flux when the apparent viscosity of the gas saturated slurry is highest. Operation with gas flow rates below the critical minimum results in system instability indicated by temperature excursions in the fluid and at the tube wall, by a rapid increase and then decrease in overall pressure drop with decreasing gas flow rate, and by increased temperature differences between the temperature of the bulk fluid and the tube wall. At the temperatures and pressures used in coal liquefaction preheaters the coal-oil slurry and hydrogen containing gas stream behaves essentially as a Newtonian fluid at shear rates in excess of 150 sec.sup. -1. The gas to slurry volume ratio should also be controlled to assure that the flow regime does not shift from homogeneous flow to non-homogeneous flow. Stable operations have been observed with a maximum gas holdup as high as 0.72.

Braunlin, Walter A. (Spring, TX); Gorski, Alan (Lovington, NM); Jaehnig, Leo J. (New Orleans, LA); Moskal, Clifford J. (Oklahoma City, OK); Naylor, Joseph D. (Houston, TX); Parimi, Krishnia (Allison Park, PA); Ward, John V. (Arvada, CO)

1984-01-03T23:59:59.000Z

156

EIA - Coal Distribution  

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

Annual Coal Distribution Report > Annual Coal Distribution Archives Annual Coal Distribution Archive Release Date: February 17, 2011 Next Release Date: December 2011 Domestic coal...

157

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

Science Conference Proceedings (OSTI)

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

2009-07-29T23:59:59.000Z

158

Gasifier feed - Tailor-made from Illinois coals  

SciTech Connect

The main purpose of this project is to produce a feedstock from preparation plant fines from an illinois coal that is ideal for a slurry fed, slagging, entrained-flow coal gasifier. The high sulfur content and high Btu value of Illinois coals are particularly advantageous in such a gasifier; preliminary calculations indicate that the increased cost of removing sulfur from the gas from a high sulfur coal is more than offset by the increased revenue from the sale of the elemental sulfur; additionally the high Btu Illinois coal concentrates more energy into the slurry of a given coal to water ratio. The Btu is higher not only because of the higher Btu value of the coal but also because Illinois coal requires less water to produce a pumpable slurry than western coal, i.e., as little as 30--35% water may be used for Illinois coal as compared to approximately 45% for most western coals.

Ehrlinger, H.P. III (Illinois State Geological Survey, Champaign, IL (United States)); Lytle, J.; Frost, R.R.; Lizzio, A.; Kohlenberger, L.; Brewer, K. (Illinois State Geological Survey, Champaign, IL (United States) DESTEC Energy (United States) Williams Technology, (United States) Illinois Coal Association (United States))

1992-01-01T23:59:59.000Z

159

Coal storage hopper with vibrating screen agitator  

DOE Patents (OSTI)

The present invention is directed to a vibrating screen agitator in a coal storage hopper for assuring the uniform feed of coal having sufficient moisture content to effect agglomeration and bridging thereof in the coal hopper from the latter onto a conveyor mechanism. The vibrating screen agitator is provided by a plurality of transversely oriented and vertically spaced apart screens in the storage hopper with a plurality of vertically oriented rods attached to the screens. The rods are vibrated to effect the vibration of the screens and the breaking up of agglomerates in the coal which might impede the uniform flow of the coal from the hopper onto a conveyer.

Daw, Charles S. (Knoxville, TN); Lackey, Mack E. (Oak Ridge, TN); Sy, Ronald L. (Clinton, TN)

1984-01-01T23:59:59.000Z

160

Data accumulation on the methane potential of the coal beds of Colorado. Final report  

SciTech Connect

A two-year project was conducted to gather data that would assist in the evaluation of the methane potential of the coal beds of Colorado. It was found that a number of closed underground coal mines in the State had reported gassy conditions or had experienced fires and explosions of varied intensity and frequency. The majority of such occurrences have been in those areas characterized by coals of relatively low (i.e., below 31%) volatile matter (VM) content. The south half of the Raton Mesa coal region (Las Animas County) and the southeastern part of the Unita region (in Gunnison and Pitkin Counties) contain coals with the lowest percentages of VM, the gassiest producing mines, and the highest grade coking coal in the State. Five active mines in Pitkin County presently are emitting a total of over 8 million cu ft of methane per day. These mines produce the highest quality metallurgical-grade coal in the western US (high-volatile A and medium-volatile bituminous). The gassy coals in these two regions range from Late Cretaceous to Paleocene in age and usually occur in areas related to igneous activity of late Tertiary age. The VM percentages of Colorado coals can be used, with some caution, to determine their potential methane content. Additional desorption measurements and coal analyses are needed to more accurately predict the effects of rank and depth of occurrence on the methane content of coals in the State.

Fender, H. B.; Murray, D. K.

1978-03-31T23:59:59.000Z

Note: This page contains sample records for the topic "metallurgical coal flows" 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

CE IGCC repowering project: Materials for coal gasification environment. Topical report, June 1993  

Science Conference Proceedings (OSTI)

A task to develop material requirements and a materials testing strategy was established with the Materials and Water Chemistry Department of the ABB Power plant Laboratories. This involved examining the requirements for each system under ABB CE scope. The basis for the material recommendations was largely based on in-house test programs under DOE contract and ABB CE experience. Consultants were utilized in a parallel task to assist in the design and material specification for the solids handling systems. ABB CE experience includes operating data from a former process development unit (PDU) located in Windsor, Connecticut. The unit gasified Pittsburgh seam coal at a nominal firing rate of 120 tons per day. The objectives of the program were to produce clean, low-Btu gas from coal, and to provide the design information for scale-up to commercial-size plants. The results of the task were used to specify and, depending on scope, design the equipment used in the plant. A detailed document was developed and used to generate a Metallurgical Flow Diagram. Specifications were developed from this diagram. For the equipment designed, these selections were provided to representatives of cognizant design and manufacturing departments. In addition, where appropriate, recommendations were made for operating procedures and for design changes. Specified materials will be again evaluated during detailed engineering. In some areas the results of the task were not conclusive. Additional investigation will be required. These areas are the types of approaches which can be taken to accommodate product gas sulfidation resistance and solids transport erosion.

Gibbons, T.B.; O`Neill, J.K.; Plumley, A.L.; Thibeault, P.R.; Waryasz, R.W.

1993-10-01T23:59:59.000Z

162

Sensitivity of Fischer-Tropsch Synthesis and Water-Gas Shift Catalystes to Poisons form High-Temperature High-Pressure Entrained-Flow (EF) Oxygen-Blown Gasifier Gasification of Coal/Biomass Mixtures  

DOE Green Energy (OSTI)

There has been a recent shift in interest in converting not only natural gas and coal derived syngas to Fischer-Tropsch synthesis products, but also converting biomass-derived syngas, as well as syngas derived from coal and biomass mixtures. As such, conventional catalysts based on iron and cobalt may not be suitable without proper development. This is because, while ash, sulfur compounds, traces of metals, halide compounds, and nitrogen-containing chemicals will likely be lower in concentration in syngas derived from mixtures of coal and biomass (i.e., using entrained-flow oxygen-blown gasifier gasification gasification) than solely from coal, other compounds may actually be increased. Of particular concern are compounds containing alkali chemicals like the chlorides of sodium and potassium. In the first year, University of Kentucky Center for Applied Energy Research (UK-CAER) researchers completed a number of tasks aimed at evaluating the sensitivity of cobalt and iron-based Fischer-Tropsch synthesis (FT) catalysts and a commercial iron-chromia high temperature water-gas shift catalyst (WGS) to alkali halides. This included the preparation of large batches of 0.5%Pt-25%Co/Al{sub 2}O{sub 3} and 100Fe: 5.1Si: 3.0K: 2.0Cu (high alpha) catalysts that were split up among the four different entities participating in the overall project; the testing of the catalysts under clean FT and WGS conditions; the testing of the Fe-Cr WGS catalyst under conditions of co-feeding NaCl and KCl; and the construction and start-up of the continuously stirred tank reactors (CSTRs) for poisoning investigations.

Burton Davis; Gary Jacobs; Wenping Ma; Khalid Azzam; Janet ChakkamadathilMohandas; Wilson Shafer

2009-09-30T23:59:59.000Z

163

NETL: Clean Coal Demonstrations - Coal 101  

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

Cleanest Coal Technology Clean Coal 101 Lesson 5: The Cleanest Coal Technology-A Real Gas Don't think of coal as a solid black rock. Think of it as a mass of atoms. Most of the...

164

Coal_Studyguide.indd  

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

Study Guide: WHAT IS COAL? Coal looks like a shiny black rock. Coal has lots of energy in it. When it is burned, coal makes heat and light energy. Th e cave men used coal for...

165

SPH Simulation of transition to turbulence for planar shear flow subjected to a streamwise magnetic field  

Science Conference Proceedings (OSTI)

Active flow control of electrically conducting fluids finds growing importance in the metallurgical industry. A magnetic field applied in the streamwise direction of electrically conducting fluid flow restrains the velocity fluctuations in the transverse ... Keywords: CFD, magnetohydrodynamics, simulation, smoothed particle hydrodynamics, turbulence control

Fangming Jiang; Mónica S. A. Oliveira; Antonio C. M. Sousa

2006-09-01T23:59:59.000Z

166

Clean Coal Technology and the Clean Coal Power Initiative | Department...  

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

Clean Coal Technology and the Clean Coal Power Initiative Clean Coal Technology and the Clean Coal Power Initiative "Clean coal technology" describes a new generation of energy...

167

Proof-of-concept tests of the magnetohydrodynamic steam-bottoming system at the DOE Coal-Fired Flow Facility. Final report  

DOE Green Energy (OSTI)

The development of coal-fired magnetohydrodynamic (MHD) power can be viewed as consisting of two parts; the topping cycle and the bottoming cycle. The topping cycle consists of the coal combustor, MHD generator and associated components. The bottoming cycle consists of the heat recovery, steam generation, seed recovery/regeneration, emissions control (gas and particulate), ash handling and deposition, and materials evaluation. The report concentrates on the bottoming cycle, for which much of the technology was developed at the University of Tennessee Space Institute (UTSI). Because of the complexity of the required technology, a number of issues required investigation. Of specific concern regarding the bottoming cycle, was the design of the steam cycle components and emissions control. First, the high combustion temperatures and the use of large quantities of potassium in the MHD combustor results in a difference in the composition of the gases entering the bottoming cycle compared to conventional systems. Secondly, a major goal of the UTSI effort was to use a variety of coals in the MHD system, especially the large reserves of high-sulfur coals available in the United States.

Attig, R.C. [ed.

1996-10-09T23:59:59.000Z

168

Fired heater for coal liquefaction process  

DOE Patents (OSTI)

A fired heater for a coal liquefaction process is operated under conditions to maximize the slurry slug frequency and thereby improve the heat transfer efficiency. The operating conditions controlled are (1) the pipe diameter and pipe arrangement, (2) the minimum coal/solvent slurry velocity, (3) the maximum gas superficial velocity, and (4) the range of the volumetric flow velocity ratio of gas to coal/solvent slurry.

Ying, David H. S. (Macungie, PA); McDermott, Wayne T. (Allentown, PA); Givens, Edwin N. (Bethlehem, PA)

1985-01-01T23:59:59.000Z

169

Method of operating a coal gasifier  

DOE Patents (OSTI)

A method of operating an entrained flow coal gasifier which comprises the steps of firing coal at two levels in a combustion zone with near stoichiometric air, removing molten ash from the combustion zone, conveying combustion products upwardly from the combustion zone through a reduction zone, injecting additional coal into the combustion products in the reduction zone and gasifying at least a portion of the coal to form low BTU gas, conveying the gas to a point of use, including also reducing gasifier output by modifying the ratio of air to coal supplied to the upper level of the combustion zone so that the ratio becomes increasingly substoichiometric thereby extending the gasification of coal from the reduction zone into the upper level of the combustion zone, and maintaining the lower level of coal in the combustion zone at near stoichiometric conditions so as to provide sufficient heat to maintain effective slagging conditions.

Blaskowski, Henry J. (West Simsbury, CT)

1979-01-01T23:59:59.000Z

170

Mulled Coal: A beneficiated coal form for use as a fuel or fuel intermediate. Technical progress report No. 6, July 1, 1991--September 30, 1991  

SciTech Connect

Under the auspices of the Department of Energy and private industry, considerable progress has been made in: preparation of coal-water fuels; combustion of low-ash coal-based fuel forms; and in processes to provide deeply-cleaned coal. Since the inception of the project, we have: developed formulations for stabilizing wet filter cake into a granular free flowing material (Mulled Coal); applied the formulation to wet cake from a variety of coal sources ranging from anthracite to subbituminous coal; evaluated effects of moisture loss on mull properties; and developed design concepts for equipment for preparing the Mulled Coal and converting it into Coal Water Fuel.

1991-11-01T23:59:59.000Z

171

Pneumatic conveying of pulverized solvent refined coal  

DOE Patents (OSTI)

A method for pneumatically conveying solvent refined coal to a burner under conditions of dilute phase pneumatic flow so as to prevent saltation of the solvent refined coal in the transport line by maintaining the transport fluid velocity above approximately 95 ft/sec.

Lennon, Dennis R. (Allentown, PA)

1984-11-06T23:59:59.000Z

172

System for analyzing coal liquefaction products  

SciTech Connect

A system for analyzing constituents of coal-derived materials comprises three adsorption columns and a flow-control arrangement which permits separation of both aromatic and polar hydrocarbons by use of two eluent streams.

Dinsmore, Stanley R. (Norris, TN); Mrochek, John E. (Oak Ridge, TN)

1984-01-01T23:59:59.000Z

173

System for analyzing coal-liquefaction products  

DOE Patents (OSTI)

A system for analyzing constituents of coal-derived materials comprises three adsorption columns and a flow-control arrangement which permits separation of both aromatic and polar hydrocarbons by use of two eluent streams. 4 figures.

Dinsmore, S.R.; Mrochek, J.E.

1982-10-29T23:59:59.000Z

174

EIA Energy Kids - Coal  

U.S. Energy Information Administration (EIA)

Sometimes, coal-fired electric power plants are built near coal mines to lower ... industries and businesses with their own power plants use coal to generate ...

175

Coal industry annual 1994  

SciTech Connect

This report presents data on coal consumption, distribution, coal stocks, quality, prices, coal production information, and emissions for a wide audience.

NONE

1995-10-01T23:59:59.000Z

176

Analysis of photographic records of coal pyrolysis  

SciTech Connect

Bituminous coals upon heating undergo melting and pyrolytic decomposition with significant parts of the coal forming an unstable liquid that can escape from the coal by evaporation. The transient liquid within the pyrolyzing coal causes softening or plastic behavior that can influence the chemistry and physics of the process. Bubbles of volatiles can swell the softened coal mass in turn affecting the combustion behavior of the coal particles. The swelling behavior of individual coal particles has to be taken into account both as the layout as well as for the operation of pyrolysis, coking and performance of coal-fired boilers. Increased heating rates generally increase the amount of swelling although it is also known that in some cases, even highly swelling coals can be transformed into char with no swelling if they are heated slowly enough. The swelling characteristics of individual coal particles have been investigated by a number of workers employing various heating systems ranging from drop tube and shock tube furnaces, flow rate reactors and electrical heating coils. Different methods have also been employed to determine the swelling factors. The following sections summarize some of the published literature on the subject and outline the direction in which the method of analysis will be further extended in the study of the swelling characteristics of hvA bituminous coal particles that have been pyrolyzed with a laser beam.

Dodoo, J.N.D.

1991-10-01T23:59:59.000Z

177

Sensitivity of Fischer-Tropsch Synthesis and Water-Gas Shift Catalysts to Poisons from High-Temperature High-Pressure Entrained-Flow (EF) Oxygen-Blown Gasifier Gasification of Coal/Biomass Mixtures  

DOE Green Energy (OSTI)

The successful adaptation of conventional cobalt and iron-based Fischer-Tropsch synthesis catalysts for use in converting biomass-derived syngas hinges in part on understanding their susceptibility to byproducts produced during the biomass gasification process. With the possibility that oil production will peak in the near future, and due to concerns in maintaining energy security, the conversion of biomass-derived syngas and syngas derived from coal/biomass blends to Fischer-Tropsch synthesis products to liquid fuels may provide a sustainable path forward, especially considering if carbon sequestration can be successfully demonstrated. However, one current drawback is that it is unknown whether conventional catalysts based on iron and cobalt will be suitable without proper development because, while ash, sulfur compounds, traces of metals, halide compounds, and nitrogen-containing chemicals will likely be lower in concentration in syngas derived from mixtures of coal and biomass (i.e., using an entrained-flow oxygen-blown gasifier) than solely from coal, other byproducts may be present in higher concentrations. The current project examines the impact of a number of potential byproducts of concern from the gasification of biomass process, including compounds containing alkali chemicals like the chlorides of sodium and potassium. In the second year, researchers from the University of Kentucky Center for Applied Energy Research (UK-CAER) continued the project by evaluating the sensitivity of a commercial iron-chromia high temperature water-gas shift catalyst (WGS) to a number of different compounds, including KHCO{sub 3}, NaHCO{sub 3}, HCl, HBr, HF, H{sub 2}S, NH{sub 3}, and a combination of H{sub 2}S and NH{sub 3}. Cobalt and iron-based Fischer-Tropsch synthesis (FT) catalysts were also subjected to a number of the same compounds in order to evaluate their sensitivities.

Burtron Davis; Gary Jacobs; Wenping Ma; Khalid Azzam; Dennis Sparks; Wilson Shafer

2010-09-30T23:59:59.000Z

178

Method of operating a two-stage coal gasifier  

DOE Patents (OSTI)

A method of operating an entrained flow coal gasifier (10) via a two-stage gasification process. A portion of the coal (18) to be gasified is combusted in a combustion zone (30) with near stoichiometric air to generate combustion products. The combustion products are conveyed from the combustion zone into a reduction zone (32) wherein additional coal is injected into the combustion products to react with the combustion products to form a combustible gas. The additional coal is injected into the reduction zone as a mixture (60) consisting of coal and steam, preferably with a coal-to-steam weight ratio of approximately ten to one.

Tanca, Michael C. (Tariffville, CT)

1982-01-01T23:59:59.000Z

179

Coal combustion under conditions of blast furnace injection; [Quarterly] technical report, September 1--November 30, 1993  

SciTech Connect

A potentially new use for Illinois coal is its use as a fuel injected into a blast furnace to produce molten iron as the first step in steel production. Because of its increasing cost and decreasing availability, metallurgical coke is now being replaced by coal injected at the tuyere area of the furnace where the blast air enters. The purpose of this study is to evaluate the combustion of coal during the blast furnace injection process and to delineate the optimum properties of the feed coal. This investigation is significant to the use of Illinois coal in that the limited research to date suggests that coals of low fluidity and moderate to high sulfur and chlorine contents are suitable feedstocks for blast furnace injection. This study is unique in that it will be the first North American effort to directly determine the nature of the combustion of coal injected into a blast furnace. This proposal is a follow-up to one funded for the 1992--1993 period. It is intended to complete the study already underway with the Armco Inc. steel company and to initiate a new cooperative study along somewhat similar lines with the Inland Steel Company. The results of this study will lead to the development of a testing and evaluation protocol that will give a unique and much needed understanding of the behavior of coal in the injection process and prove the potential of Illinois coals f or such use.

Crelling, J.C.

1993-12-31T23:59:59.000Z

180

Coal combustion under conditions of blast furnace injection. Final technical report, September 1, 1992--August 31, 1993  

Science Conference Proceedings (OSTI)

A potentially new use for Illinois coal is as a fuel injected into a blast furnace to produce molten iron as the first step in steel production. Because of its increasing cost and decreasing availability, metallurgical coke is now being replaced by coal injected at the tuyere area of the furnace where the blast air enters. The purpose of this study is to evaluate the combustion of coal during the blast furnace injection process and to delineate the optimum properties of the feed coal. This investigation is significant to the use of Illinois coal in that the limited research to date suggests that coals of low fluidity and moderate to high sulfur and chlorine contents are suitable feedstocks for blast furnace injection. During the first phase of this project a number of the objectives were realized, specifically: (1) a blast furnace sampling system was developed and used successfully to collect samples inside an active furnace; (2) two sets of blast furnace samples were collected and petrographic analysis showed that char derived from injected coal is entering the reduction zone of the furnace; (3) a coal/char sampling probe was designed and fabricated; (4) the completion of a program of reactivity experiments on the injected coal char, blast furnace coke and Herrin No. 6 char. The results of the reactivity experiments indicate that Herrin No. 6 coal is similar or even superior to coals now being used in blast furnace injection and that additional testing is warranted.

Crelling, J.C. [Southern Illinois Univ., Carbondale, IL (United States). Dept. of Geology; Case, E.R. [Armco, Inc., Middletown, OH (United States). Research and Technology Div.

1993-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "metallurgical coal flows" 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

Entrained Flow Gasification of Oil Sand Coke.  

E-Print Network (OSTI)

??The effect of blending woody biomass material with fluid coke and coal on the co-pyrolysis process was investigated in an entrained flow gasifier. The SEM… (more)

Vejahati, Farshid

2012-01-01T23:59:59.000Z

182

A coal export simulation model  

SciTech Connect

Uncertainty of future energy supplies has forced industrial nations to diversify both their energy mix and their energy sources of supply. As a result, U.S. coal exports have grown substantially during the past several years. Projected long-term worldwide economic growth suggests that a well-established trend has been set for increased foreign demand for U.S. coal. As export volumes increase the need for careful planning to prevent bottlenecks and to provide for the uninterrupted flow of coal increases. It also will place increased emphasis on identifying the most economic transportation alternatives. These planning and evaluation functions are greatly facilitated if a systematic method is available for modeling the complex interactions of a coal export system. One such model, developed by the Anaconda Minerals Company, is the Coal Export model. This model simulates the movement of coal by transportation equipment (trains, ships, barges, etc.) from an originating mine site to a destination port via an intermediate port facility. Stockpile sizing and the selection of transportation equipment can be optimized with the aid of this model. Also, the impact of various operating policies for ship and train scheduling and for administering stockpiles can be predicted. Evaluating these issues can help to determine the most economic way to move a desired amount of coal from the originating mine site to the destination port.

Bydlon, T.J.; Tyber, H.B.

1982-09-01T23:59:59.000Z

183

Inclined fluidized bed system for drying fine coal  

SciTech Connect

Coal is processed in an inclined fluidized bed dryer operated in a plug-flow manner with zonal temperature and composition control, and an inert fluidizing gas, such as carbon dioxide or combustion gas. Recycled carbon dioxide, which is used for drying, pyrolysis, quenching, and cooling, is produced by partial decarboxylation of the coal. The coal is heated sufficiently to mobilize coal tar by further pyrolysis, which seals micropores upon quenching. Further cooling with carbon dioxide enhances stabilization.

Cha, Chang Y. (Golden, CO); Merriam, Norman W. (Laramie, WY); Boysen, John E. (Laramie, WY)

1992-02-11T23:59:59.000Z

184

Process for electrochemically gasifying coal using electromagnetism  

DOE Patents (OSTI)

A process for electrochemically gasifying coal by establishing a flowing stream of coal particulate slurry, electrolyte and electrode members through a transverse magnetic field that has sufficient strength to polarize the electrode members, thereby causing them to operate in combination with the electrolyte to electrochemically reduce the coal particulate in the slurry. Such electrochemical reduction of the coal produces hydrogen and carbon dioxide at opposite ends of the polarized electrode members. Gas collection means are operated in conjunction with the process to collect the evolved gases as they rise from the slurry and electrolyte solution.

Botts, Thomas E. (Markham, VA); Powell, James R. (Shoreham, NY)

1987-01-01T23:59:59.000Z

185

Sensitivity of Fischer-Tropsch Synthesis and Water-Gas Shift Catalysts to Poisons from High-Temperature High-Pressure Entrained-Flow (EF) Oxygen-Blown Gasifier Gasification of Coal/Biomass Mixtures  

Science Conference Proceedings (OSTI)

There has been a recent shift in interest in converting not only natural gas and coal derived syngas to Fischer-Tropsch synthesis products, but also converting biomass-derived syngas, as well as syngas derived from coal and biomass mixtures. As such, conventional catalysts based on iron and cobalt may not be suitable without proper development. This is because, while ash, sulfur compounds, traces of metals, halide compounds, and nitrogen-containing chemicals will likely be lower in concentration in syngas derived from mixtures of coal and biomass (i.e., using entrained-flow oxygen-blown gasifier gasification gasification) than solely from coal, other compounds may actually be increased. Of particular concern are compounds containing alkali chemicals like the chlorides of sodium and potassium. In the first year, University of Kentucky Center for Applied Energy Research (UK-CAER) researchers completed a number of tasks aimed at evaluating the sensitivity of cobalt and iron-based Fischer-Tropsch synthesis (FT) catalysts and a commercial iron-chromia high temperature water-gas shift catalyst (WGS) to alkali halides. This included the preparation of large batches of 0.5%Pt-25%Co/Al{sub 2}O{sub 3} and 100Fe: 5.1Si: 3.0K: 2.0Cu (high alpha) catalysts that were split up among the four different entities participating in the overall project; the testing of the catalysts under clean FT and WGS conditions; the testing of the Fe-Cr WGS catalyst under conditions of co-feeding NaCl and KCl; and the construction and start-up of the continuously stirred tank reactors (CSTRs) for poisoning investigations. In the second and third years, researchers from the University of Kentucky Center for Applied Energy Research (UK-CAER) continued the project by evaluating the sensitivity of a commercial iron-chromia high temperature water-gas shift catalyst (WGS) to a number of different compounds, including KHCO{sub 3}, NaHCO{sub 3}, HCl, HBr, HF, H{sub 2}S, NH{sub 3}, and a combination of H{sub 2}S and NH{sub 3}. Cobalt and iron-based Fischer-Tropsch synthesis (FT) catalysts were also subjected to a number of the same compounds in order to evaluate their sensitivities at different concentration levels of added contaminant.

Burton Davis; Gary Jacobs; Wenping Ma; Dennis Sparks; Khalid Azzam; Janet Chakkamadathil Mohandas; Wilson Shafer; Venkat Ramana Rao Pendyala

2011-09-30T23:59:59.000Z

186

NETL: Clean Coal Demonstrations - Coal 101  

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

Knocking the NOx Out of Coal Clean Coal 101 Lesson 3: Knocking the NOx Out of Coal How NOx Forms NOx Formation Air is mostly nitrogen molecules (green in the above diagram) and...

187

Coal and bituminous reserves  

SciTech Connect

Chapter 5 of this book contains sections entitled: other coal processes; underground processing of coal; and other important energy sources.

NONE

2008-02-15T23:59:59.000Z

188

A15: Purification of Metallurgical Grade Silicon by Electron-Beam ...  

Science Conference Proceedings (OSTI)

... Kinetics of Anthracite Coal and Biomass Char by Thermogravimetric Analysis ... A18: Study on Super Stable All-solid-state Battery at High Temperature.

189

DESULFURIZATION OF COAL MODEL COMPOUNDS AND COAL LIQUIDS  

E-Print Network (OSTI)

Pollutants Associated With Coal Combustion. • E.P.A.Control Guidelines for Coal-Derived Pollutants .Forms of Sulfur in Coal • . . . . Coal Desulfurization

Wrathall, James Anthony

2011-01-01T23:59:59.000Z

190

Create a Consortium and Develop Premium Carbon Products from Coal  

DOE Green Energy (OSTI)

The objective of these projects was to investigate alternative technologies for non-fuel uses of coal. Special emphasis was placed on developing premium carbon products from coal-derived feedstocks. A total of 14 projects, which are the 2003 Research Projects, are reported herein. These projects were categorized into three overall objectives. They are: (1) To explore new applications for the use of anthracite in order to improve its marketability; (2) To effectively minimize environmental damage caused by mercury emissions, CO{sub 2} emissions, and coal impounds; and (3) To continue to increase our understanding of coal properties and establish coal usage in non-fuel industries. Research was completed in laboratories throughout the United States. Most research was performed on a bench-scale level with the intent of scaling up if preliminary tests proved successful. These projects resulted in many potential applications for coal-derived feedstocks. These include: (1) Use of anthracite as a sorbent to capture CO{sub 2} emissions; (2) Use of anthracite-based carbon as a catalyst; (3) Use of processed anthracite in carbon electrodes and carbon black; (4) Use of raw coal refuse for producing activated carbon; (5) Reusable PACs to recycle captured mercury; (6) Use of combustion and gasification chars to capture mercury from coal-fired power plants; (7) Development of a synthetic coal tar enamel; (8) Use of alternative binder pitches in aluminum anodes; (9) Use of Solvent Extracted Carbon Ore (SECO) to fuel a carbon fuel cell; (10) Production of a low cost coal-derived turbostratic carbon powder for structural applications; (11) Production of high-value carbon fibers and foams via the co-processing of a low-cost coal extract pitch with well-dispersed carbon nanotubes; (12) Use of carbon from fly ash as metallurgical carbon; (13) Production of bulk carbon fiber for concrete reinforcement; and (14) Characterizing coal solvent extraction processes. Although some of the projects funded did not meet their original goals, the overall objectives of the CPCPC were completed as many new applications for coal-derived feedstocks have been researched. Future research in many of these areas is necessary before implementation into industry.

Frank Rusinko; John Andresen; Jennifer E. Hill; Harold H. Schobert; Bruce G. Miller

2006-01-01T23:59:59.000Z

191

University Coal Research | Department of Energy  

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

Science & Innovation Clean Coal Crosscutting Research University Coal Research University Coal Research Clean Coal Turbines Gasification Fuel Cells Hydrogen from Coal Coal...

192

O A L Section 2. Coal  

U.S. Energy Information Administration (EIA)

Section 2. Coal Coal prices are developed for the following three categories: coking coal; steam coal (all noncoking coal); and coal coke imports and exports.

193

Deashing of coal liquids by sonically assisted filtration  

Science Conference Proceedings (OSTI)

This project seeks to improve the effectiveness and reduce the cost of coal liquefaction by novel applications of sonic and ultrasonic energy. The specific purpose of this project is to develop and improve means for the economical removal of dispersed solid particles of ash, unreacted coal, and spent catalyst from direct and indirect coal liquefaction resids by using sonic or ultrasonic waves. Product streams containing solids are generated in both direct and indirect coal liquefaction processes. Direct coal liquefaction processes generate liquid products which contain solids including coal-originated mineral matter, unreacted coal, and spent dispersed catalyst. The removal of these solids from a product stream is one of the most difficult problems in direct coal liquefaction processes. On this report, results are discussed for sonically assisted crossflow filtration of V-1067 resid, diluted with No. 2 fuel oil, and sonically assisted batch filtrations of solids concentrates from continuous cross-flow filtration experiments.

Slomka, B.J.

1994-10-01T23:59:59.000Z

194

Coated graphite articles useful in metallurgical processes and method for making same  

DOE Patents (OSTI)

Graphite articles including crucibles and molds used in metallurgical processes involving the melting and the handling of molten metals and alloys that are reactive with carbon when in a molten state and at process temperatures up to about 2000.degree. C. are provided with a multiple-layer coating for inhibiting carbon diffusion from the graphite into the molten metal or alloys. The coating is provided by a first coating increment of a carbide-forming metal on selected surfaces of the graphite, a second coating increment of a carbide forming metal and a refractory metal oxide, and a third coating increment of a refractory metal oxide. The second coating increment provides thermal shock absorbing characteristics to prevent delamination of the coating during temperature cycling. A wash coat of unstabilized zirconia or titanium nitride can be applied onto the third coating increment to facilitate release of melts from the coating.

Holcombe, Cressie E. (Knoxville, TN); Bird, Eugene L. (Knoxville, TN)

1995-01-01T23:59:59.000Z

195

Solar-Grade Silicon from Metallurgical-Grade Silicon Via Iodine Chemical Vapor Transport Purification: Preprint  

DOE Green Energy (OSTI)

This conference paper describes the atmospheric-pressure in an ''open'' reactor, SiI2 transfers from a hot (>1100C) Si source to a cooler (>750C) Si substrate and decomposes easily via 2SiI2 Si+ SiI4 with up to 5?m/min deposition rate. SiI4 returns to cyclically transport more Si. When the source is metallurgical-grade Si, impurities can be effectively removed by three mechanisms: (1) differing free energies of formation in forming silicon and impurity iodides; (2) distillation; and (3) differing standard free energies of formation during deposition. Distillation has been previously reported. Here, we focused on mechanisms (1) and (3). We made feedstock, analyzed the impurity levels, grew Czochralski single crystals, and evaluated crystal and photovoltaic properties. Cell efficiencies of 9.5% were obtained. Incorporating distillation (step 2) should increase this to a viable level.

Ciszek, T. F.; Wang, T. H.; Page, M. R.; Bauer, R. E.; Landry, M. D.

2002-05-01T23:59:59.000Z

196

Numerical simulation of turbulent flow in complex geometries used in power plants  

Science Conference Proceedings (OSTI)

Performance degradations or improvements of coal-fired power stations depend on effective functioning of pulveriser equipment and combustion efficiency of furnaces in boilers. The function of a pulveriser is to grind the lumped coal and transfer the ... Keywords: CFD, coal fired power station, flow simulation, geometrical modelling, grid generation, particle trajectories, pulveriser, roller mill, turbulent flow, two-phase flow

C. Bhasker

2002-02-01T23:59:59.000Z

197

PRODUCTION OF CARBON PRODUCTS USING A COAL EXTRACTION PROCESS  

Science Conference Proceedings (OSTI)

This Department of Energy National Energy Technology Laboratory sponsored project developed carbon products, using mildly hydrogenated solvents to extract the organic portion of coal to create synthetic pitches, cokes, carbon foam and carbon fibers. The focus of this effort was on development of lower cost solvents, milder hydrogenation conditions and improved yield in order to enable practical production of these products. This technology is needed because of the long-term decline in production of domestic feedstocks such as petroleum pitch and coal tar pitch. Currently, carbon products represents a market of roughly 5 million tons domestically, and 19 million tons worldwide. Carbon products are mainly derived from feedstocks such as petroleum pitch and coal tar pitch. The domestic supply of petroleum pitch is declining because of the rising price of liquid fuels, which has caused US refineries to maximize liquid fuel production. As a consequence, the long term trend has a decline in production of petroleum pitch over the past 20 years. The production of coal tar pitch, as in the case of petroleum pitch, has likewise declined significantly over the past two decades. Coal tar pitch is a byproduct of metallurgical grade coke (metcoke) production. In this industry, modern metcoke facilities are recycling coal tar as fuel in order to enhance energy efficiency and minimize environmental emissions. Metcoke production itself is dependent upon the production requirements for domestic steel. Hence, several metcoke ovens have been decommissioned over the past two decades and have not been replaced. As a consequence sources of coal tar are being taken off line and are not being replaced. The long-term trend is a reduction in coal tar pitch production. Thus import of feedstocks, mainly from Eastern Europe and China, is on the rise despite the relatively large transportation cost. To reverse this trend, a new process for producing carbon products is needed. The process must be economically competitive with current processes, and yet be environmentally friendly as well. The solvent extraction process developed uses mild hydrogenation of low cost oils to create powerful solvents that can dissolve the organic portion of coal. The insoluble portion, consisting mainly of mineral matter and fixed carbon, is removed via centrifugation or filtration, leaving a liquid solution of coal chemicals and solvent. This solution can be further refined via distillation to meet specifications for products such as synthetic pitches, cokes, carbon foam and fibers. The most economical process recycles 85% of the solvent, which itself is obtained as a low-cost byproduct from industrial processes such as coal tar or petroleum refining. Alternatively, processes have been developed that can recycle 100% of the solvent, avoiding any need for products derived from petroleum or coal tar.

Dady Dadyburjor; Philip R. Biedler; Chong Chen; L. Mitchell Clendenin; Manoj Katakdaunde; Elliot B. Kennel; Nathan D. King; Liviu Magean; Peter G. Stansberry; Alfred H. Stiller; John W. Zondlo

2004-08-31T23:59:59.000Z

198

Apparatus for fixed bed coal gasification  

DOE Patents (OSTI)

An apparatus for fixed-bed coal gasification is described in which coal such as caking coal is continuously pyrolyzed with clump formation inhibited, by combining the coal with a combustible gas and an oxidant, and then continually feeding the pyrolyzed coal under pressure and elevated temperature into the gasification region of a pressure vessel. The materials in the pressure vessel are allowed to react with the gasifying agents in order to allow the carbon contents of the pyrolyzed coal to be completely oxidized. The combustion of gas produced from the combination of coal pyrolysis and gasification involves combining a combustible gas coal and an oxidant in a pyrolysis chamber and heating the components to a temperature of at least 1600.degree. F. The products of coal pyrolysis are dispersed from the pyrolyzer directly into the high temperature gasification region of a pressure vessel. Steam and air needed for gasification are introduced in the pressure vessel and the materials exiting the pyrolyzer flow down through the pressure vessel by gravity with sufficient residence time to allow any carbon to form carbon monoxide. Gas produced from these reactions are then released from the pressure vessel and ash is disposed of.

Sadowski, Richard S. (Greenville, SC)

1992-01-01T23:59:59.000Z

199

Coal gasification  

Science Conference Proceedings (OSTI)

A standard series of two staged gas generators (GG) has been developed in the United States for producing gas with a combustion heat from 4,700 to 7,600 kilojoules per cubic meter from coal (U). The diameter of the gas generators is from 1.4 to 3.65 meters and the thermal capacity based on purified cold gas is from 12.5 to 89 million kilojoules per hour. Certain standard sized gas generators have undergone experimental industrial tests which showed that it is most expedient to feed the coal into the gas generators pneumatically. This reduces the dimensions of the charging device, makes it possible to use more common grades of structural steels and reduces the cost of the gas. A double valve reliably prevents ejections of the gasification product and promotes the best distribution of the coal in the gas generator. The gas generators may successfully operate on high moisture (up to 36 percent) brown coal. Blasting with oxygen enriched to 38 percent made it possible to produce a gas with a combustion heat of 9,350 kilojoules per cubic meter. This supports a combustion temperature of 1,700C.

Rainey, D.L.

1983-01-01T23:59:59.000Z

200

Process for blending coal with water immiscible liquid  

DOE Patents (OSTI)

A continuous process for blending coal with a water immiscible liquid produces a uniform, pumpable slurry. Pulverized raw feed coal and preferably a coal derived, water immiscible liquid are continuously fed to a blending zone (12 and 18) in which coal particles and liquid are intimately admixed and advanced in substantially plug flow to form a first slurry. The first slurry is withdrawn from the blending zone (12 and 18) and fed to a mixing zone (24) where it is mixed with a hot slurry to form the pumpable slurry. A portion of the pumpable slurry is continuously recycled to the blending zone (12 and 18) for mixing with the feed coal.

Heavin, Leonard J. (Olympia, WA); King, Edward E. (Gig Harbor, WA); Milliron, Dennis L. (Lacey, WA)

1982-10-26T23:59:59.000Z

Note: This page contains sample records for the topic "metallurgical coal flows" 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

Coal storage hopper with vibrating-screen agitator  

DOE Patents (OSTI)

The present invention is directed to a vibrating screen agitator in a coal storage hopper for assuring the uniform feed of coal having sufficient moisture content to effect agglomeration and bridging thereof in the coal hopper from the latter onto a conveyer mechanism. The vibrating scrren agitator is provided by a plurality of transversely oriented and vertically spaced apart screens in the storage hopper with a plurality of vertically oriented rods attached to the screens. The rods are vibrated to effect the vibration of the screens and the breaking up of agglomerates in the coal which might impede the uniform flow of the coal from the hopper onto a conveyer.

Daw, C.S.; Lackey, M.E.; Sy, R.L.

1982-04-27T23:59:59.000Z

202

Coal combustion under conditions of blast furnace injection. [Quarterly] technical report, 1 December 1993--28 February 1994  

SciTech Connect

A potentially new use for Illinois coal is its use as a fuel injected into a blast furnace to produce molten iron as the first step in steel production. Because of its increasing cost and decreasing availability, metallurgical coke is now being replaced by coal injected at the tuyere area of the furnace where the blast air enters. The purpose of this study is to evaluate the combustion of coal during the blast furnace injection process and to delineate the optimum properties of the feed coal. This proposal is a follow-up to one funded for the 1992--1993 period. It is intended to complete the study already underway with the Armco Inc. Steel Company and to initiate a new cooperative study along somewhat similar lines with the Inland Steel Company. The results of this study will lead to the development of a testing and evaluation protocol that will give a unique and much needed understanding of the behavior of coal in the injection process and prove the potential of Illinois coals for such use. During this quarter a sample of the feed coal that is being used for injection into the No. 7 Blast Furnace of Inland Steel has been analyzed petrographically and compared to both the Herrin No. 6 coal and Armco feed coal. Additional characterization is underway and an advanced program of pyrolysis and reactivity testing has been initiated.

Crelling, J.C. [Southern Illinois Univ., Carbondale, IL (United States). Dept. of Geology

1994-06-01T23:59:59.000Z

203

Coal industry annual 1997  

Science Conference Proceedings (OSTI)

Coal Industry Annual 1997 provides comprehensive information about US coal production, number of mines, prices, productivity, employment, productive capacity, and recoverable reserves. US Coal production for 1997 and previous years is based on the annual survey EIA-7A, Coal Production Report. This report presents data on coal consumption, coal distribution, coal stocks, coal prices, and coal quality for Congress, Federal and State agencies, the coal industry, and the general public. Appendix A contains a compilation of coal statistics for the major coal-producing States. This report includes a national total coal consumption for nonutility power producers that are not in the manufacturing, agriculture, mining, construction, or commercial sectors. 14 figs., 145 tabs.

NONE

1998-12-01T23:59:59.000Z

204

Coal industry annual 1996  

Science Conference Proceedings (OSTI)

This report presents data on coal consumption, coal distribution, coal stocks, coal prices, and coal quality, and emissions for Congress, Federal and State agencies, the coal industry, and the general public. Appendix A contains a compilation of coal statistics for the major coal-producing States.This report does not include coal consumption data for nonutility power producers that are not in the manufacturing, agriculture, mining, construction, or commercial sectors. Consumption for nonutility power producers not included in this report is estimated to be 24 million short tons for 1996. 14 figs., 145 tabs.

NONE

1997-11-01T23:59:59.000Z

205

Coal Industry Annual 1995  

SciTech Connect

This report presents data on coal consumption, coal distribution, coal stocks, coal prices, coal quality, and emissions for Congress, Federal and State agencies, the coal industry, and the general public. Appendix A contains a compilation of coal statistics for the major coal-producing States. This report does not include coal consumption data for nonutility power producers that are not in the manufacturing, agriculture, mining, construction, or commercial sectors. Consumption for nonutility power producers not included in this report is estimated to be 21 million short tons for 1995.

1996-10-01T23:59:59.000Z

206

Microbial solubilization of coal  

DOE Patents (OSTI)

The present invention relates to a cell-free preparation and process for the microbial solubilization of coal into solubilized coal products. More specifically, the present invention relates to bacterial solubilization of coal into solubilized coal products and a cell-free bacterial byproduct useful for solubilizing coal. 5 tabs.

Strandberg, G.W.; Lewis, S.N.

1988-01-21T23:59:59.000Z

207

Low Rank Coal Optimization  

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

Low Rank Coal Optimization Low Rank Coal Optimization NETL Office of Research and Development Project Number: FWP-2012.03.03 Task 4 Project Description NETL's in-house research team is using an integrated approach to combine theory, computational modeling, experiment, and industrial input to develop physics-based methods, models, and tools to support the development and deployment of advanced gasification based devices and systems. The activities in this effort include developing and applying computational and modeling tools to simulate complex flows in applications such as transport or entrained flow gasifiers. TRIG Model Development - The primary objective of this work is to develop a hierarchy of models for numerical simulations of TRIG co-feed conditions that span fast running reduced order models (ROM's) to high fidelity multiphase computational fluid dynamics (CFD) models. Each model will have uncertainty quantification associated with its predictions to allow a user to choose a model based on the trade-offs between computational speed and uncertainty in the predictions.

208

Coal liquefaction and hydrogenation  

DOE Patents (OSTI)

Disclosed is a coal liquefaction process using two stages. The first stage liquefies the coal and maximizes the product while the second stage hydrocracks the remainder of the coal liquid to produce solvent.

Schindler, Harvey D. (Fair Lawn, NJ); Chen, James M. (Edison, NJ)

1985-01-01T23:59:59.000Z

209

Coal industry annual 1993  

Science Conference Proceedings (OSTI)

Coal Industry Annual 1993 replaces the publication Coal Production (DOE/FIA-0125). This report presents additional tables and expanded versions of tables previously presented in Coal Production, including production, number of mines, Productivity, employment, productive capacity, and recoverable reserves. This report also presents data on coal consumption, coal distribution, coal stocks, coal prices, coal quality, and emissions for a wide audience including the Congress, Federal and State agencies, the coal industry, and the general public. In addition, Appendix A contains a compilation of coal statistics for the major coal-producing States. This report does not include coal consumption data for nonutility Power Producers who are not in the manufacturing, agriculture, mining, construction, or commercial sectors. This consumption is estimated to be 5 million short tons in 1993.

Not Available

1994-12-06T23:59:59.000Z

210

Firing of pulverized solvent refined coal  

SciTech Connect

A burner for the firing of pulverized solvent refined coal is constructed and operated such that the solvent refined coal can be fired successfully without any performance limitations and without the coking of the solvent refined coal on the burner components. The burner is provided with a tangential inlet of primary air and pulverized fuel, a vaned diffusion swirler for the mixture of primary air and fuel, a center water-cooled conical diffuser shielding the incoming fuel from the heat radiation from the flame and deflecting the primary air and fuel steam into the secondary air, and a watercooled annulus located between the primary air and secondary air flows.

Lennon, Dennis R. (Allentown, PA); Snedden, Richard B. (McKeesport, PA); Foster, Edward P. (Macungie, PA); Bellas, George T. (Library, PA)

1990-05-15T23:59:59.000Z

211

M-Area and Metallurgical Laboratory Hazardous Waste Management Facilities groundwater monitoring and corrective-action report (U). Third and fourth quarters 1996, Vol. I  

SciTech Connect

This report describes the groundwater monitoring and corrective-action program at the M-Area Hazardous Waste Management Facility (HWMF) and the Metallurgical Laboratory (Met Lab) HWMF at the Savannah River Site (SRS) during 1996.

NONE

1997-03-01T23:59:59.000Z

212

Coal Distribution Database, 2006  

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

2009 Final February 2011 2 Overview of 2009 Coal Distribution Tables Introduction The Coal Distribution Report - Annual provides detailed information on domestic coal distribution by origin state, destination state, consumer category, and method of transportation. Also provided is a summary of foreign coal distribution by coal-producing State. This Final 2009 Coal Distribution Report - Annual, supersedes the data contained in the four Quarterly Coal Distribution Reports previously issued for 2009. This report relies on the most current data available from EIA's various monthly, quarterly and annual surveys of the coal industry and electric power generation industry. In addition, the report

213

2014 Coal Form Proposals  

U.S. Energy Information Administration (EIA)

Coal Survey Form Changes Proposed for 2014. The U.S. Energy Information Administration (EIA) has begun the process of re-clearing the coal survey ...

214

Coal Mining (Iowa)  

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

These sections describe procedures for coal exploration and extraction, as well as permitting requirements relating to surface and underground coal mining. These sections also address land...

215

Coal News and Markets  

U.S. Energy Information Administration (EIA)

Coal Prices (updated December 27, 2006) This report summarizes spot coal prices for the business weeks ended December 1, 8, and 15.

216

Annual Coal Report 2001  

U.S. Energy Information Administration (EIA)

DOE/EIA-0584 (2001) Annual Coal Report 2001 Energy Information Administration Office of Coal, Nuclear, Electric, and Alternate Fuels U.S. Department of Energy

217

Annual Coal Distribution Report  

Gasoline and Diesel Fuel Update (EIA)

Annual Coal Distribution Report Release Date: December 19, 2013 | Next Release Date: November 2014 | full report | RevisionCorrection Revision to the Annual Coal Distribution...

218

Influence of coal quality factors on seam permeability associated with coalbed methane production.  

E-Print Network (OSTI)

??Cleats are natural fractures in coal that serve as permeability avenues for darcy flow of gas and water to the well bore during production. Theoretically,… (more)

Wang, Xingjin

2007-01-01T23:59:59.000Z

219

Coal combustion under conditions of blast furnace injection. Technical report, 1 December 1992--28 February 1993  

SciTech Connect

A potentially new use for Illinois coal is its use as a fuel injected into a blast furnace to produce molten iron as the first step in steel production. Because of its increasing cost and decreasing availability, metallurgical coke is now being replaced by coal injected at the tuyere area of the furnace where the blast air enters. The purpose of this study is to evaluate the combustion of coal during the blast furnace injection process and to delineate the optimum properties of the feed coal. This investigation is significant to the use of Illinois coal in that the limited research to date suggests that coals of low fluidity and moderate to high sulfur and chlorine contents are suitable feedstocks for blast furnace injection. This proposed study is unique in that it will be the first North American effort to directly determine the nature of the combustion of coal injected into a blast furnace. The Amanda furnace of Armco is the only one in North America currently using coal injection and is, therefore, the only full scale testing facility available. During this quarter complete petrographic analyses of all of the samples so far collected were completed.

Crelling, J.C. [Southern Illinois Univ., Carbondale, IL (United States). Dept. of Geology; Case, E.R. [Armco, Inc., Middletown, OH (United States). Research and Technology Div.

1993-05-01T23:59:59.000Z

220

American Coal Council 2004 Spring Coal Forum  

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

American Coal Council American Coal Council 2004 Spring Coal Forum Dallas, Texas May 17-19, 2004 Thomas J. Feeley, III Technology Manager National Energy Technology Laboratory ACC Spring Coal Forum, 2004 Presentation Outline * Background * Power plant-water issues * DOE/NETL R&D program * Conclusion/future plans ACC Spring Coal Forum, 2004 Global Water Availability Ocean 97% Fresh Water 2.5% 0 20 40 60 80 100 Ice Groundwater Lakes and Rivers ACC Spring Coal Forum, 2004 Three Things Power Plants Require 1) Access to transmission lines 2) Available fuel, e.g., coal or natural gas 3) Water ACC Spring Coal Forum, 2004 Freshwater Withdrawals and Consumption Mgal / Day Irrigation 81,300 Irrigation 81,300 Thermoelectric 3,310 Consumption Sources: "Estimated Use of Water in the United States in 1995," USGS Circular 1200, 1998

Note: This page contains sample records for the topic "metallurgical coal flows" 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

NETL: Clean Coal Demonstrations - Coal 101  

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

Clean Coal Technology Program Clean Coal Technology Program Clean Coal 101 Lesson 2: The Clean Coal Technology Program The Clean Coal Technology Program began in 1985 when the United States and Canada decided that something had to be done about the "acid rain" that was believed to be damaging rivers, lakes, forests, and buildings in both countries. Since many of the pollutants that formed "acid rain" were coming from big coal-burning power plants in the United States, the U.S. Government took the lead in finding a solution. One of the steps taken by the U.S. Department of Energy was to create a partnership program between the Government, several States, and private companies to test new methods developed by scientists to make coal burning much cleaner. This became the "Clean Coal Technology Program."

222

NETL: Coal & Coal Biomass to Liquids  

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

Coal Biomass to Liquids Hydrogen-from-Coal RD&D ENERGY ANALYSIS About Us Search Products Contacts SMART GRID ANALYSIS BASELINE STUDIES QUALITY GUIDELINES NETL-RUA About NETL-RUA...

223

Coal Combustion Products | Department of Energy  

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

Coal Combustion Products Coal Combustion Products Coal combustion products (CCPs) are solid materials produced when coal is burned to generate electricity. Since coal provides the...

224

Clean Coal Research | Department of Energy  

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

Clean Coal Research Clean Coal Research Clean Coal Turbines Gasification Fuel Cells Hydrogen from Coal Coal to Liquids Major Demonstrations Crosscutting Research Carbon Capture and...

225

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, VOL. 61, NO. 5, MAY 2012 1343 Flow Measurement of Biomass and Blended Biomass  

E-Print Network (OSTI)

to those in the horizontal pipe. Index Terms--Biomass­coal flow, blended biomass, cross- correlation. It is expected that biomass­coal mixture or blended biomass flow is significantly more complex than and between different biomass fuels. Quantitative data about biomass­coal mixture flow and blended biomass

Yan, Yong

226

Determination of Coal Permeability Using Pressure Transient Methods  

SciTech Connect

Coalbed methane is a significant natural resource in the Appalachian region. It is believed that coalbed methane production can be enhanced by injection of carbon dioxide into coalbeds. However, the influence of carbon dioxide injection on coal permeability is not yet well understood. Competitive sorption of carbon dioxide and methane gases onto coal is a known process. Laboratory experiments and limited field experience indicate that coal will swell during sorption of a gas and shrink during desorption of a gas. The swelling and shrinkage may change the permeability of the coal. In this study, the permeability of coal was determined by using carbon dioxide as the flowing fluid. Coal samples with different dimensions were prepared for laboratory permeability tests. Carbon dioxide was injected into the coal and the permeability was determined by using pressure transient methods. The confining pressure was variedto cover a wide range of depths. The permeability was also determined as a function of exposure time of carbon dioxide while the confining stress was kept constant. CT scans were taken before and after the introduction of carbon dioxide. Results show that the porosity and permeability of the coal matrix was very low. The paper presents experimental data and theoretical aspects of the flow of carbon dioxide through a coal sample during pressure transient tests. The suitability of the pressure transient methods for determining permeability of coal during carbon dioxide injection is discussed in the paper.

McLendon, T.R.; Siriwardane, H. (West Virginia University, Morgantown, WV); Haljasmaa, I.V.; Bromhal, G.S.; Soong, Y.; Irdi, G.A.

2007-05-01T23:59:59.000Z

227

Metallurgical and mechanical properties of thorium-doped Ir-0. 3% W alloys  

DOE Green Energy (OSTI)

Metallurgical and mechanical properties of Ir-0.3% W alloys have been studied as a function of thorium concentration in the range 0 to 1000 ppM by weight. The solubility limit of thorium in Ir-0.3% W is below 30 ppM. Above this limit, the excess thorium reacts with iridium to form second-phase particles. Thorium additions raise the recrystallization temperature and effectively retard grain growth at high temperatures. Tensile tests at 650/sup 0/C show that the alloy without thorium additions (undoped alloy) fractured by grainboundary (GB) separation, while the alloys doped with less than 500 ppM thorium failed mainly by transgranular fracture at 650/sup 0/C. Intergranular fracture in the doped alloys is suppressed by GB segregation of thorium, which improves the mechanical properties of the boundary. The impact properties of the alloys were correlated with test temperature, grain size, and heat treatment. The impact ductility increases with test temperature and decreases with grain size. For a given grain size, particularly in the fine-grain size range, the thorium-doped alloys are much more ductile and resistant to GB fracture. All of these results can be correlated on the basis of stress concentration on GBs by using a dislocation pileup model.

Liu, C.T.; Inouye, H.; Schaffhauser, A.C.

1980-04-01T23:59:59.000Z

228

Fatigue Testing of Metallurgically-Bonded EBR-II Superheater Tubes  

Science Conference Proceedings (OSTI)

Fatigue crack growth tests were performed on 2¼Cr-1Mo steel specimens machined from ex-service Experimental Breeder Reactor – II (EBR-II) superheater duplex tubes. The tubes had been metallurgically bonded with a 100 µm thick Ni interlayer; the specimens incorporated this bond layer. Tests were performed at room temperature in air and at 400°C in air and humid Ar; cracks were grown at varied levels of constant ?K. Crack growth tests at a range of ?K were also performed on specimens machined from the shell of the superheater. In all conditions the presence of the Ni interlayer was found to result in a net retardation of growth as the crack passed through the interlayer. The mechanism of retardation was identified as a disruption of crack planarity and uniformity after passing through the porous interlayer. Full crack arrest was only observed in a single test performed at near-threshold ?K level (12 MPa?m) at 400°C. In this case the crack tip was blunted by oxidation of the base steel at the steel-interlayer interface.

Terry C. Totemeier

2006-12-01T23:59:59.000Z

229

Coal liquefaction  

DOE Patents (OSTI)

In a two-stage liquefaction wherein coal, hydrogen and liquefaction solvent are contacted in a first thermal liquefaction zone, followed by recovery of an essentially ash free liquid and a pumpable stream of insoluble material, which includes 850.degree. F.+ liquid, with the essentially ash free liquid then being further upgraded in a second liquefaction zone, the liquefaction solvent for the first stage includes the pumpable stream of insoluble material from the first liquefaction stage, and 850.degree. F.+ liquid from the second liquefaction stage.

Schindler, Harvey D. (Fairlawn, NJ)

1985-01-01T23:59:59.000Z

230

Financing Capture Ready Coal-Fired Power Plants in China by Issuing Capture Options  

E-Print Network (OSTI)

Financing Capture Ready Coal-Fired Power Plants in China by Issuing Capture Options Xi Liang, Jia Li, Jon Gibbons and David Reiner December 2007 EPRG 0728 & CWPE 0761 #12;FINANCING CAPTURE READY COAL supercritical pulverized coal power plant in China, using a cash flow model with Monte-Carlo simulations

Aickelin, Uwe

231

AN INSTRUMENTALIST APPROACH TO VALIDATION: A QUANTITATIVE ASSESSMENT OF A NOVEL COAL  

E-Print Network (OSTI)

AN INSTRUMENTALIST APPROACH TO VALIDATION: A QUANTITATIVE ASSESSMENT OF A NOVEL COAL GASIFICATION/uncertainty quantification (V&V/UQ) of codes is presented in detail, and is applied to a novel entrained flow coal at the mathematical model. The novel coal gasification model, which utilizes the direct quadrature method of moments

Utah, University of

232

file://G:\mydocs\Coal\Distribution\2003\distable2.HTML  

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

3 3 (Thousand Short Tons) Coal-Exporting State and Destination Metallurgical Steam Total Alabama 5,156 - 5,156 Argentina 345 - 345 Belgium 387 - 387 Brazil 1,825 - 1,825 Bulgaria 363 - 363 Egypt 477 - 477 Germany 167 - 167 Italy 87 - 87 Netherlands 399 - 399 Spain 198 - 198 Turkey 551 - 551 United Kingdom 359 - 359 Kentucky 1,449 - 1,449 Canada 566 - 566 France 104 - 104 Iceland 53 - 53 Italy 139 - 139 Netherlands 268 - 268 Norway 14 - 14 United Kingdom 304 - 304 Pennsylvania 476 8,251 8,820 Australia - 81 81 Belgium - 188 188 Brazil 85 - 87 Canada 203 6,622 6,893 Costa Rica - 40 40 Denmark - 184 184 Dominican Republic - 19 20 France - 193 193 Germany 89 - 89 Ireland - 148 148 Jamaica - 36 36 Morocco - 172 172 Netherlands 99 248 355 Peru - - 12 Portugal - 321 321 Venezuela - - 2 Virginia 4,786

233

US energy flow, 1991  

SciTech Connect

Trends in energy consumption and assessment of energy sources are discussed. Specific topics discussed include: energy flow charts; comparison of energy use with 1990 and earlier years; supply and demand of fossil fuels (oils, natural gas, coal); electrical supply and demand; and nuclear power.

Borg, I.Y.; Briggs, C.K.

1992-06-01T23:59:59.000Z

234

Subbituminous and bituminous coal dominate U.S. coal ...  

U.S. Energy Information Administration (EIA)

While almost all coal consumed in the United States is used to generate electricity (90% in 2010), coal is not entirely homogeneous. Coal is ...

235

NETL: Coal & Coal Biomass to Liquids - Alternate Hydrogen Production  

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

Coal and CoalBiomass to Liquids Alternate Hydrogen Production In the Alternate Production technology pathway, clean syngas from coal is converted to high-hydrogen-content liquid...

236

The Effect of Circulating Coal Slurry Water Hardness on Coal ...  

Science Conference Proceedings (OSTI)

In order to investigate the effect of gypsum on flotation and coal slurry settling during coal slurry recirculation, the water hardness and proton conductivity of coal ...

237

Coal Tar and Bedrock  

Science Conference Proceedings (OSTI)

The characterization of bedrock groundwater and coal tar impacts is one of the most complicated tasks associated with managing manufactured gas plant (MGP) sites. This report provides an overview of the fate and transport of coal tar in bedrock and the methods available to investigate coal tar at particular sites and discusses how to develop a decision-making framework for coal tar investigations.

2007-02-22T23:59:59.000Z

238

Coal Market Module  

Gasoline and Diesel Fuel Update (EIA)

page intentionally left blank page intentionally left blank 153 U.S. Energy Information Administration | Assumptions to the Annual Energy Outlook 2011 Coal Market Module The NEMS Coal Market Module (CMM) provides projections of U.S. coal production, consumption, exports, imports, distribution, and prices. The CMM comprises three functional areas: coal production, coal distribution, and coal exports. A detailed description of the CMM is provided in the EIA publication, Coal Market Module of the National Energy Modeling System 2011, DOE/EIA-M060(2011) (Washington, DC, 2011). Key assumptions Coal production The coal production submodule of the CMM generates a different set of supply curves for the CMM for each year of the projection. Forty-one separate supply curves are developed for each of 14 supply regions, nine coal types (unique combinations

239

EIA -Quarterly Coal Distribution  

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

Coal Distribution Coal Distribution Home > Coal> Quarterly Coal Distribution Back Issues Quarterly Coal Distribution Archives Release Date: June 27, 2013 Next Release Date: September 2013 The Quarterly Coal Distribution Report (QCDR) provides detailed quarterly data on U.S. domestic coal distribution by coal origin, coal destination, mode of transportation and consuming sector. All data are preliminary and superseded by the final Coal Distribution - Annual Report. Year/Quarters By origin State By destination State Report Data File Report Data File 2009 January-March pdf xls pdf xls April-June pdf xls pdf xls July-September pdf xls pdf October-December pdf xls pdf 2010 January-March pdf xls pdf xls April-June pdf xls pdf xls July-September pdf xls pdf xls

240

Coal Market Module This  

Gasoline and Diesel Fuel Update (EIA)

51 51 U.S. Energy Information Administration | Assumptions to the Annual Energy Outlook 2012 Coal Market Module The NEMS Coal Market Module (CMM) provides projections of U.S. coal production, consumption, exports, imports, distribution, and prices. The CMM comprises three functional areas: coal production, coal distribution, and coal exports. A detailed description of the CMM is provided in the EIA publication, Coal Market Module of the National Energy Modeling System 2012, DOE/EIA-M060(2012) (Washington, DC, 2012). Key assumptions Coal production The coal production submodule of the CMM generates a different set of supply curves for the CMM for each year of the projection. Forty-one separate supply curves are developed for each of 14 supply regions, nine coal types (unique combinations

Note: This page contains sample records for the topic "metallurgical coal flows" 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

NETL: Clean Coal Demonstrations - Coal 101  

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

A "Bed" for Burning Coal A "Bed" for Burning Coal Clean Coal 101 Lesson 4: A "Bed" for Burning Coal? It was a wet, chilly day in Washington DC in 1979 when a few scientists and engineers joined with government and college officials on the campus of Georgetown University to celebrate the completion of one of the world's most advanced coal combustors. It was a small coal burner by today's standards, but large enough to provide heat and steam for much of the university campus. But the new boiler built beside the campus tennis courts was unlike most other boilers in the world. A Fluidized Bed Boiler A Fluidized Bed Boiler In a fluidized bed boiler, upward blowing jets of air suspend burning coal, allowing it to mix with limestone that absorbs sulfur pollutants.

242

Wabash River Coal Gasification Repowering Project  

SciTech Connect

The Destec gasification process features an oxygen-blown, two stage entrained flow gasifier. PSI will procure coal for the Project consistent with the design specification ranges of Destec's coal gasification facility. Destec's plant will be designed to accept coal with a maximum sulfur content of 5.9% (dry basis) and a minimum energy content of 13,5000 BTU/pound (moisture and ash free basis). PSI and Destec will test at least two other coals for significant periods during the demonstration period. In the Destec process, coal is ground with water to form a slurry. It is then pumped into a gasification vessel where oxygen is added to form a hot raw gas through partial combustion. Most of the noncarbon material in the coal melts and flows out the bottom of the vessel forming slag -- a black, glassy, non-leaching, sand-like material. Particulates, sulfur and other impurities are removed from the gas before combustion to make it acceptable fuel for the gas turbine. The synthetic fuel gas (syngas) is piped to a General Electric MS 7001F high temperature combustion turbine generator. A heat recovery steam generator recovers gas turbine exhaust heat to produce high pressure steam. This steam and the steam generated in the gasification process supply an existing steam turbine-generator. The plant will be designed to outperform air emission standards established by the Clean Air Act Amendments for the year 2000.

Amick, P.; Mann, G.J.; Cook, J.J.; Fisackerly, R.; Spears, R.C.

1992-01-01T23:59:59.000Z

243

Wabash River Coal Gasification Repowering Project  

SciTech Connect

The Destec gasification process features an oxygen-blown, two stage entrained flow gasifier. PSI will procure coal for the Project consistent with the design specification ranges of Destec`s coal gasification facility. Destec`s plant will be designed to accept coal with a maximum sulfur content of 5.9% (dry basis) and a minimum energy content of 13,5000 BTU/pound (moisture and ash free basis). PSI and Destec will test at least two other coals for significant periods during the demonstration period. In the Destec process, coal is ground with water to form a slurry. It is then pumped into a gasification vessel where oxygen is added to form a hot raw gas through partial combustion. Most of the noncarbon material in the coal melts and flows out the bottom of the vessel forming slag -- a black, glassy, non-leaching, sand-like material. Particulates, sulfur and other impurities are removed from the gas before combustion to make it acceptable fuel for the gas turbine. The synthetic fuel gas (syngas) is piped to a General Electric MS 7001F high temperature combustion turbine generator. A heat recovery steam generator recovers gas turbine exhaust heat to produce high pressure steam. This steam and the steam generated in the gasification process supply an existing steam turbine-generator. The plant will be designed to outperform air emission standards established by the Clean Air Act Amendments for the year 2000.

Amick, P.; Mann, G.J.; Cook, J.J.; Fisackerly, R.; Spears, R.C.

1992-11-01T23:59:59.000Z

244

Prebaked Anode from Coal Extract  

Science Conference Proceedings (OSTI)

We previously reported that the coal extract prepared from non-hydrogenative extraction of thermal coals using two-ring-aromatic solvent (Hyper-coal) is suitable ...

245

Coal desulfurization with sodium hypochlorite.  

E-Print Network (OSTI)

??Wet desulfurization of Pittsburgh No. 8 coal and Illinois No. 6 coal were conducted with sodium hypochlorite in the laboratory. Pittsburgh No. 8 coal was… (more)

Li, Wei, M.S.

2004-01-01T23:59:59.000Z

246

Analysis of photographic records of coal pyrolysis. Final report  

SciTech Connect

Bituminous coals upon heating undergo melting and pyrolytic decomposition with significant parts of the coal forming an unstable liquid that can escape from the coal by evaporation. The transient liquid within the pyrolyzing coal causes softening or plastic behavior that can influence the chemistry and physics of the process. Bubbles of volatiles can swell the softened coal mass in turn affecting the combustion behavior of the coal particles. The swelling behavior of individual coal particles has to be taken into account both as the layout as well as for the operation of pyrolysis, coking and performance of coal-fired boilers. Increased heating rates generally increase the amount of swelling although it is also known that in some cases, even highly swelling coals can be transformed into char with no swelling if they are heated slowly enough. The swelling characteristics of individual coal particles have been investigated by a number of workers employing various heating systems ranging from drop tube and shock tube furnaces, flow rate reactors and electrical heating coils. Different methods have also been employed to determine the swelling factors. The following sections summarize some of the published literature on the subject and outline the direction in which the method of analysis will be further extended in the study of the swelling characteristics of hvA bituminous coal particles that have been pyrolyzed with a laser beam.

Dodoo, J.N.D.

1991-10-01T23:59:59.000Z

247

Coal combustion under conditions of blast furnace injection. Technical report, March 1, 1994--May 31, 1994  

Science Conference Proceedings (OSTI)

A potentially new use for Illinois coal is its use as a fuel injected into a blast furnace to produce molten iron as the first step in steel production. Because of its increasing cost and decreasing availability, metallurgical coke is now being replaced by coal injected at the tuyere area of the furnace where the blast air enters. The purpose of this study is to evaluate the combustion of coal during the blast furnace injection process and to delineate the optimum properties of the feed coal. This investigation is significant to the use of Illinois coal in that the limited research to date suggests that coals of low fluidity and moderate to high sulfur and chlorine contents are suitable feedstocks for blast furnace injection. This proposal is a follow-up to one funded for the 1992-93 period. It is intended to complete the study already underway with the Armco Inc. Steel Company and to initiate a new cooperative study along somewhat similar lines with the Inland Steel Company. The results of this study will lead to the development of a testing and evaluation protocol that will give a unique and much needed understanding of the behavior of coal in the injection process and prove the potential of Illinois coals for such use. During this quarter samples of two feed coals and the IBCSP 112 (Herrin No. 6) were prepared for reactivity testing and compared to blast furnace coke, and char fines taken from an active blast furnace. As the initial part of a broad reactivity analysis program, these same samples were also analyzed on a thermogravimetric analyzer (TGA) to determine their combustion and reactivity properties.

Crelling, J.C. [Southern Illinois Univ., Carbondale, IL (United States)

1994-09-01T23:59:59.000Z

248

Coal data: A reference  

SciTech Connect

This report, Coal Data: A Reference, summarizes basic information on the mining and use of coal, an important source of energy in the US. This report is written for a general audience. The goal is to cover basic material and strike a reasonable compromise between overly generalized statements and detailed analyses. The section ``Supplemental Figures and Tables`` contains statistics, graphs, maps, and other illustrations that show trends, patterns, geographic locations, and similar coal-related information. The section ``Coal Terminology and Related Information`` provides additional information about terms mentioned in the text and introduces some new terms. The last edition of Coal Data: A Reference was published in 1991. The present edition contains updated data as well as expanded reviews and additional information. Added to the text are discussions of coal quality, coal prices, unions, and strikes. The appendix has been expanded to provide statistics on a variety of additional topics, such as: trends in coal production and royalties from Federal and Indian coal leases, hours worked and earnings for coal mine employment, railroad coal shipments and revenues, waterborne coal traffic, coal export loading terminals, utility coal combustion byproducts, and trace elements in coal. The information in this report has been gleaned mainly from the sources in the bibliography. The reader interested in going beyond the scope of this report should consult these sources. The statistics are largely from reports published by the Energy Information Administration.

Not Available

1995-02-01T23:59:59.000Z

249

The simulation with the finite element method of the velocity and temperature fields for a nonturbionar jet burner of 35MW feeding with pulverized coal  

Science Conference Proceedings (OSTI)

This paper presents the analysis of coal particle combustion in nonturbionar jet burner of 35MW used the Finite Element Method made with aid of the FLUENT programme. The pulverized coal combustion simulation involves modeling a continuous gas phase flow ... Keywords: FLUENT, coal-air mixture, combustion, finite element method, injection coal, nonturbionar jet

Mihai D. L. Talu; Stefan D. L. Talu; Mihai Negru

2007-07-01T23:59:59.000Z

250

Coal Distribution Assesment at Martin Lake Unit 1  

Science Conference Proceedings (OSTI)

The measurement and control of pulverized coal in the conduits of power boilers has been the subject of several recent EPRI studies. Results from these studies have made clear the extent and limitations of many measurement approaches through the work conducted at EPRI's Coal Flow Laboratory. This project is the first to apply concepts learned from coal loop studies in the field. The candidate unit is a 750-MW twin-tangential boiler equipped with 10 coal elevations. Because this unit fires a high-moisture...

2007-02-19T23:59:59.000Z

251

NETL: Coal & Power Systems - Brief History of Coal Use  

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

History of Coal Coal & Power Systems Brief History of Coal Use Steam Locomotive In the 1800s, one of the primary uses of coal was to fuel steam engines used to power locomotives....

252

NETL: Coal & Coal Biomass to Liquids - Closely Aligned Programs  

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

Home > Technologies > C&CBTL > Closely Aligned Programs Coal and CoalBiomass to Liquids Closely Aligned Programs The Department of Energy's (DOE) Coal & CoalBiomass to Liquids...

253

DEVELOPMENT OF CONTINUOUS SOLVENT EXTRACTION PROCESSES FOR COAL DERIVED CARBON PRODUCTS  

DOE Green Energy (OSTI)

This NETL sponsored effort seeks to develop continuous technologies for the production of carbon products, which may be thought of as the heavier products currently produced from refining of crude petroleum and coal tars obtained from metallurgical grade coke ovens. This effort took binder grade pitch, produced from liquefaction of West Virginia bituminous grade coal, all the way to commercial demonstration in a state of the art arc furnace. Other products, such as crude oil, anode grade coke and metallurgical grade coke were demonstrated successfully at the bench scale. The technology developed herein diverged from the previous state of the art in direct liquefaction (also referred to as the Bergius process), in two major respects. First, direct liquefaction was accomplished with less than a percent of hydrogen per unit mass of product, or about 3 pound per barrel or less. By contrast, other variants of the Bergius process require the use of 15 pounds or more of hydrogen per barrel, resulting in an inherent materials cost. Second, the conventional Bergius process requires high pressure, in the range of 1500 psig to 3000 psig. The WVU process variant has been carried out at pressures below 400 psig, a significant difference. Thanks mainly to DOE sponsorship, the WVU process has been licensed to a Canadian Company, Quantex Energy Inc, with a commercial demonstration unit plant scheduled to be erected in 2011.

Elliot Kennel; Chong Chen; Dady Dadyburjor; Mark Heavner; Manoj Katakdaunde; Liviu Magean; James Mayberry; Alfred Stiller; Joseph Stoffa; Christopher Yurchick; John Zondlo

2009-12-31T23:59:59.000Z

254

An efficient process for recovery of fine coal from tailings of coal washing plants  

SciTech Connect

Gravity concentration of hard lignites using conventional jigs and heavy media separation equipment is prone to produce coal-rich fine tailings. This study aims to establish a fine coal recovery process of very high efficiency at reasonable capital investment and operational costs. The technical feasibility to upgrade the properties of the predeslimed fine refuse of a lignite washing plant with 35.9% ash content was investigated by employing gravity separation methods. The laboratory tests carried out with the combination of shaking table and Mozley multi-gravity separator (MGS) revealed that the clean coal with 18% ash content on dry basis could be obtained with 58.9% clean coal recovery by the shaking table stage and 4.1% clean coal recovery by MGS stage, totaling to the sum of 63.0% clean coal recovery from a predeslimed feed. The combustible recovery and the organic efficiency of the shaking table + MGS combination were 79.5% and 95.5%, respectively. Based on the results of the study, a flow sheet of a high-efficiency fine coal recovery process was proposed, which is also applicable to the coal refuse pond slurry of a lignite washing plant.

Cicek, T.; Cocen, I.; Engin, V.T.; Cengizler, H. [Dokuz Eylul University, Izmir (Turkey). Dept. for Mining Engineering

2008-07-01T23:59:59.000Z

255

Investigations into coal coprocessing and coal liquefaction  

DOE Green Energy (OSTI)

The conversion of coal to liquid suitable as feedstock to a petroleum refinery is dependent upon several process variables. These variables include temperature, pressure, coal rank, catalyst type, nature of the feed to the reactor, type of process, etc. Western Research Institute (WRI) has initiated a research program in the area of coal liquefaction to address the impact of some of these variables upon the yield and quality of the coal-derived liquid. The principal goal of this research is to improve the efficiency of the coal liquefaction process. Two different approaches are currently being investigated. These include the coprocessing of a heavy liquid, such as crude oil, and coal using a dispersed catalyst and the direct liquefaction of coal using a supported catalyst. Another important consideration in coal liquefaction is the utilization of hydrogen, including both externally- and internally-supplied hydrogen. Because the incorporation of externally-supplied hydrogen during conversion of this very aromatic fossil fuel to, for example, transportation fuels is very expensive, improved utilization of internally-supplied hydrogen can lead to reducing processing costs. The objectives of this investigation, which is Task 3.3.4, Coal Coprocessing, of the 1991--1992 Annual Research Plan, are: (1) to evaluate coal/oil pretreatment conditions that are expected to improve the liquid yield through more efficient dispersion of an oil-soluble, iron-based catalyst, (2) to characterize the coke deposits on novel, supported catalysts after coal liquefaction experiments and to correlate the carbon skeletal structure parameters of the coke deposit with catalyst performance as measured by coal liquefaction product yield, and (3) to determine the modes of hydrogen utilization during coal liquefaction and coprocessing. Experimental results are discussed in this report.

Guffey, F.D.; Netzel, D.A.; Miknis, F.P.; Thomas, K.P. [Western Research Inst., Laramie, WY (United States); Zhang, Tiejun; Haynes, H.W. Jr. [Wyoming Univ., Laramie, WY (United States). Dept. of Chemical Engineering

1994-06-01T23:59:59.000Z

256

DESULFURIZATION OF COAL MODEL COMPOUNDS AND COAL LIQUIDS  

E-Print Network (OSTI)

commercial (point sources) Coal Oil Other Area sourcesSource Stationary fuel combugtion Electric utilities Coal Oil

Wrathall, James Anthony

2011-01-01T23:59:59.000Z

257

Hydrogen from Coal  

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

Coal Coal Edward Schmetz Office of Sequestration, Hydrogen and Clean Coal Fuels U.S. Department of Energy DOE Workshop on Hydrogen Separations and Purification Technologies September 8, 2004 Presentation Outline ƒ Hydrogen Initiatives ƒ Hydrogen from Coal Central Production Goal ƒ Why Coal ƒ Why Hydrogen Separation Membranes ƒ Coal-based Synthesis Gas Characteristics ƒ Technical Barriers ƒ Targets ƒ Future Plans 2 3 Hydrogen from Coal Program Hydrogen from Coal Program FutureGen FutureGen Hydrogen Fuel Initiative Hydrogen Fuel Initiative Gasification Fuel Cells Turbines Gasification Fuel Cells Turbines Carbon Capture & Sequestration Carbon Capture & Sequestration The Hydrogen from Coal Program Supports the Hydrogen Fuel Initiative and FutureGen * The Hydrogen Fuel Initiative is a $1.2 billion RD&D program to develop hydrogen

258

International Energy Outlook - Coal  

Gasoline and Diesel Fuel Update (EIA)

Coal Coal International Energy Outlook 2004 Coal Although coal use is expected to be displaced by natural gas in some parts of the world, only a slight drop in its share of total energy consumption is projected by 2025. Coal continues to dominate fuel markets in developing Asia. Figure 52. World Coal Consumption, 1970-2025. Need help, call the National Energy Information Center at 202-586-8800. Figure Data Figure 53. Coal Share of World Energy Consumption by Sector, 2001 and 2025. Need help, call the National Energy Information Center at 202-586-8800. Figure Data Figure 54. Coal Share of Regional Energy Consumption, 1970-2025. Need help, call the National Energy Information Center at 202-586-8800. Figure Data World coal consumption has been in a period of generally slow growth since

259

Coal Distribution Database, 2006  

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

Domestic Distribution of U.S. Coal by Origin State, Domestic Distribution of U.S. Coal by Origin State, Consumer, Destination and Method of Transportation, 2009 Final February 2011 2 Overview of 2009 Coal Distribution Tables Introduction The Coal Distribution Report - Annual provides detailed information on domestic coal distribution by origin state, destination state, consumer category, and method of transportation. Also provided is a summary of foreign coal distribution by coal-producing State. This Final 2009 Coal Distribution Report - Annual, supersedes the data contained in the four Quarterly Coal Distribution Reports previously issued for 2009. This report relies on the most current data available from EIA's various monthly, quarterly and annual surveys

260

Coal Severance Tax (North Dakota)  

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

The Coal Severance Tax is imposed on all coal severed for sale or industrial purposes, except coal used for heating buildings in the state, coal used by the state or any political subdivision of...

Note: This page contains sample records for the topic "metallurgical coal flows" 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

High gradient magnetic beneficiation of dry pulverized coal via upwardly directed recirculating fluidization  

SciTech Connect

This invention relates to an improved device and method for the high gradient magnetic beneficiation of dry pulverized coal, for the purpose of removing sulfur and ash from the coal whereby the product is a dry environmentally acceptable, low-sulfur fuel. The process involves upwardly directed recirculating air fluidization of selectively sized powdered coal in a separator having sections of increasing diameters in the direction of air flow, with magnetic field and flow rates chosen for optimum separations depending upon particulate size.

Eissenberg, David M. (Oak Ridge, TN); Liu, Yin-An (Opelika, AL)

1980-01-01T23:59:59.000Z

262

Spatiotemporal Imaging for Monitoring CO2 Storage in Coal Jerry M. Harris, Youli Quan, Eduardo Santos, Jolene Robin-McCaskill, Tope Akinbehinje, Yemi Arogunmati, Evan Um  

E-Print Network (OSTI)

Spatiotemporal Imaging for Monitoring CO2 Storage in Coal Jerry M. Harris, Youli Quan, Eduardo, Stanford University Work Flow Summary References Measurement of Acoustic Properties of Coal (a) CO2 the stationary SIRT for partial surveys. Flow Simulation Porofluid Porofluid Confining fluid Pump Coal Sample

Harris, Jerry M.

263

Survey and evaluation of current and potential coal beneficiation processes  

SciTech Connect

Coal beneficiation is a generic term used for processes that prepare run-of-mine coal for specific end uses. It is also referred to as coal preparation or coal cleaning and is a means of reducing the sulfur and the ash contents of coal. Information is presented regarding current and potential coal beneficiation processes. Several of the processes reviewed, though not yet commercial, are at various stages of experimental development. Process descriptions are provided for these processes commensurate with the extent of information and time available to perform the evaluation of these processes. Conceptual process designs, preliminary cost estimates, and economic evaluations are provided for the more advanced (from a process development hierarchy viewpoint) processes based on production levels of 1500 and 15,000 tons/day (maf) of cleaned product coal. Economic evaluations of the coal preparation plants are conducted for several project financing schemes and at 12 and 15% annual after-tax rates of return on equity capital. A 9% annual interest rate is used on the debt fraction of the plant capital. Cleaned product coal prices are determined using the discounted cash flow procedure. The study is intended to provide information on publicly known coal beneficiation processes and to indicate the relative costs of various coal beneficiation processes. Because of severe timeconstraints, several potential coal beneficiation processes are not evaluated in great detail. It is recommended that an additional study be conducted to complement this study and to more fully appreciate the potentially significant role of coal beneficiation in the clean burning of coal.

Singh, S. P.N.; Peterson, G. R.

1979-03-01T23:59:59.000Z

264

Coal char fragmentation during pulverized coal combustion  

Science Conference Proceedings (OSTI)

A series of investigations of coal and char fragmentation during pulverized coal combustion is reported for a suite of coals ranging in rank from lignite to low-volatile (lv) bituminous coal under combustion conditions similar to those found in commercial-scale boilers. Experimental measurements are described that utilize identical particle sizing characteristics to determine initial and final size distributions. Mechanistic interpretation of the data suggest that coal fragmentation is an insignificant event and that char fragmentation is controlled by char structure. Chars forming cenospheres fragment more extensively than solid chars. Among the chars that fragment, large particles produce more fine material than small particles. In all cases, coal and char fragmentation are seen to be sufficiently minor as to be relatively insignificant factors influencing fly ash size distribution, particle loading, and char burnout.

Baxter, L.L.

1995-07-01T23:59:59.000Z

265

Fired heater for coal liquefaction process  

DOE Patents (OSTI)

A fired heater for a coal liquefaction process is constructed with a heat transfer tube having U-bends at regular intervals along the length thereof to increase the slug frequency of the multi-phase mixture flowing therethrough to thereby improve the heat transfer efficiency.

Ying, David H. S. (Macungie, PA)

1984-01-01T23:59:59.000Z

266

Upgraded Coal Interest Group  

Science Conference Proceedings (OSTI)

The Upgraded Coal Interest Group (UCIG) is an EPRI 'users group' that focuses on clean, low-cost options for coal-based power generation. The UCIG covers topics that involve (1) pre-combustion processes, (2) co-firing systems and fuels, and (3) reburn using coal-derived or biomass-derived fuels. The UCIG mission is to preserve and expand the economic use of coal for energy. By reducing the fuel costs and environmental impacts of coal-fired power generation, existing units become more cost effective and thus new units utilizing advanced combustion technologies are more likely to be coal-fired.

Evan Hughes

2009-01-08T23:59:59.000Z

267

Coal feed lock  

DOE Patents (OSTI)

A coal feed lock is provided for dispensing coal to a high pressure gas producer with nominal loss of high pressure gas. The coal feed lock comprises a rotor member with a diametral bore therethrough. A hydraulically activated piston is slidably mounted in the bore. With the feed lock in a charging position, coal is delivered to the bore and then the rotor member is rotated to a discharging position so as to communicate with the gas producer. The piston pushes the coal into the gas producer. The rotor member is then rotated to the charging position to receive the next load of coal.

Pinkel, I. Irving (Fairview Park, OH)

1978-01-01T23:59:59.000Z

268

Health status of anthracite surface coal miners  

Science Conference Proceedings (OSTI)

In 1984-1985, medical examinations consisting of a chest radiograph, spirometry test, and questionnaire on work history, respiratory symptoms, and smoking history were administered to 1,061 white males who were employed at 31 coal cleaning plants and strip coal mines in the anthracite coal region of northeastern Pennsylvania. The prevalence of radiographic evidence of International Labour Office (ILO) category 1 or higher small opacities was 4.5% in 516 men who had never been employed in a dusty job other than in surface coal mining. Among these 516 workers, all 4 cases of ILO radiographic category 2 or 3 rounded opacities and 1 case of large opacities had been employed as a highwall drill operator or helper. The prevalence of category 1 or higher opacities increased with tenure as a highwall drill operator or helper (2.7% for 0 y, 6.5% for 1-9 yr, 25.0% for 10-19 y, and 55.6% for greater than or equal to 20 y drilling). Radiographic evidence of small rounded opacities, dyspnea, and decreases in FEV1.0, FVC, and peak flow were significantly related to tenure at drilling operations after adjusting for age, height, cigarette smoking status, and exposures in dusty jobs other than in surface coal mining. However, tenure in coal cleansing plants and other surface coal mine jobs were not related to significant health effects. The apparent excess prevalence of radiographic small rounded opacities in anthracite surface coal mine drillers suggests that quartz exposures have been increased. Average respirable quartz concentrations at surface coal mine drilling operations should be evaluated to determine whether exposures are within existing standards, and dust exposures should be controlled.

Amandus, H.E.; Petersen, M.R.; Richards, T.B.

1989-03-01T23:59:59.000Z

269

Biological upgrading of coal liquids. Final report  

SciTech Connect

A large number of bacterial enrichments have been developed for their ability to utilize nitrogen and sulfur in coal liquids and the model compound naphtha. These bacteria include the original aerobic bacteria isolated from natural sources which utilize heteroatom compounds in the presence of rich media, aerobic nitrogen-utilizing bacteria and denitrifying bacteria. The most promising isolates include Mix M, a mixture of aerobic bacteria; ER15, a pyridine-utilizing isolate; ERI6, an aniline-utilizing isolate and a sewage sludge isolate. Culture optimization experiments have led to these bacteria being able to remove up to 40 percent of the sulfur and nitrogen in naphtha and coal liquids in batch culture. Continuous culture experiments showed that the coal liquid is too toxic to the bacteria to be fed without dilution or extraction. Thus either semi-batch operation must be employed with continuous gas sparging into a batch of liquid, or acid extracted coal liquid must be employed in continuous reactor studies with continuous liquid flow. Isolate EN-1, a chemical waste isolate, removed 27 percent of the sulfur and 19 percent of the nitrogen in fed batch experiments. Isolate ERI5 removed 28 percent of the nitrogen in coal liquid in 10 days in fed batch culture. The sewage sludge isolate removed 22.5 percent of the sulfur and 6.5 percent of the nitrogen from extracted coal liquid in continuous culture, and Mix M removed 17.5 percent of the nitrogen from medium containing extracted coal liquid. An economic evaluation has been prepared for the removal of nitrogen heteroatom compounds from Wilsonville coal liquid using acid extraction followed by fermentation. Similar technology can be developed for sulfur removal. The evaluation indicates that the nitrogen heteroatom compounds can be removed for $0.09/lb of coal liquid treated.

NONE

1995-02-01T23:59:59.000Z

270

International perspectives on coal preparation  

SciTech Connect

The report consists of the vugraphs from the presentations which covered the following topics: Summaries of the US Department of Energy`s coal preparation research programs; Preparation trends in Russia; South African coal preparation developments; Trends in hard coal preparation in Germany; Application of coal preparation technology to oil sands extraction; Developments in coal preparation in China; and Coal preparation in Australia.

1997-12-31T23:59:59.000Z

271

Pelletization of fine coals  

SciTech Connect

The present research project attempts to provide a basis to determine the pelletizability of fine coals, to ascertain the role of additives and binders and to establish a basis for binder selection. Currently, there are no established techniques for determining the quality of coal pellets. Our research is intended to develop a series of tests on coal pellets to measure their storage characteristics, transportability, ease of gasification and rate of combustion. Information developed from this research should be valuable for making knowledgeable decisions for on-time plant design, occasional binder selection and frequent process control during the pelletization of coal fines. During the last quarter, we continued the batch pelletization studies on Upper Freeport coal. The results as presented in that last quarterly report (April 1991) indicated that the surface conditions on the coal particle influenced the pelletizing growth rates. For example, a fresh (run of mine) sample of coal will display different pelletizing growth kinetics than a weathered sample of the same coal. Since coal is a heterogeneous material, the oxidized product of coal is equally variable. We found it to be logistically difficult to consistently produce large quantities of artificially oxidized coal for experimental purposes and as such we have used a naturally weathered coal. We have plans to oxidize coals under controlled oxidizing conditions and be able to establish their pelletizing behavior. The next phase of experiments were directed to study the effect of surface modification, introduced during the coal cleaning steps, on pelletizing kinetics. Accordingly, we initiated studies with two additives commonly used during the flotation of coal: dextrin (coal depressant) and dodecane (coal collector).

Sastry, K.V.S.

1991-09-01T23:59:59.000Z

272

Coal Combustion Science  

SciTech Connect

The objective of this activity is to support the Office of Fossil Energy in executing research on coal combustion science. This activity consists of basic research on coal combustion that supports both the Pittsburgh Energy Technology Center Direct Utilization Advanced Research and Technology Development Program, and the International Energy Agency Coal Combustion Science Project. Specific tasks for this activity include: (1) coal devolatilization - the objective of this risk is to characterize the physical and chemical processes that constitute the early devolatilization phase of coal combustion as a function of coal type, heating rate, particle size and temperature, and gas phase temperature and oxidizer concentration; (2) coal char combustion -the objective of this task is to characterize the physical and chemical processes involved during coal char combustion as a function of coal type, particle size and temperature, and gas phase temperature and oxygen concentration; (3) fate of mineral matter during coal combustion - the objective of this task is to establish a quantitative understanding of the mechanisms and rates of transformation, fragmentation, and deposition of mineral matter in coal combustion environments as a function of coal type, particle size and temperature, the initial forms and distribution of mineral species in the unreacted coal, and the local gas temperature and composition.

Hardesty, D.R. (ed.); Fletcher, T.H.; Hurt, R.H.; Baxter, L.L. (Sandia National Labs., Livermore, CA (United States))

1991-08-01T23:59:59.000Z

273

Development of an Ultra-fine Coal Dewatering Technology and an Integrated Flotation-Dewatering System for Coal Preparation Plants  

SciTech Connect

The project proposal was approved for only the phase I period. The goal for this Phase I project was to develop an industrial model that can perform continuous and efficient dewatering of fine coal slurries of the previous flotation process to fine coal cake of {approx}15% water content from 50-70%. The feasibility of this model should be demonstrated experimentally using a lab scale setup. The Phase I project was originally for one year, from May 2005 to May 2006. With DOE approval, the project was extended to Dec. 2006 without additional cost from DOE to accomplish the work. Water has been used in mining for a number of purposes such as a carrier, washing liquid, dust-catching media, fire-retardation media, temperature-control media, and solvent. When coal is cleaned in wet-processing circuits, waste streams containing water, fine coal, and noncombustible particles (ash-forming minerals) are produced. In many coal preparation plants, the fine waste stream is fed into a series of selection processes where fine coal particles are recovered from the mixture to form diluted coal fine slurries. A dewatering process is then needed to reduce the water content to about 15%-20% so that the product is marketable. However, in the dewatering process currently used in coal preparation plants, coal fines smaller than 45 micrometers are lost, and in many other plants, coal fines up to 100 micrometers are also wasted. These not-recovered coal fines are mixed with water and mineral particles of the similar particle size range and discharged to impoundment. The wasted water from coal preparation plants containing unrecoverable coal fine and mineral particles are called tailings. With time the amount of wastewater accumulates occupying vast land space while it appears as threat to the environment. This project developed a special extruder and demonstrated its application in solid-liquid separation of coal slurry, tailings containing coal fines mostly less than 50 micron. The extruder is special because all of its auger surface and the internal barrier surface are covered with the membranes allowing water to drain and solid particles retained. It is believed that there are four mechanisms working together in the dewatering process. They are hydrophilic diffusion flow, pressure flow, agitation and air purging. Hydrophilic diffusion flow is effective with hydrophilic membrane. Pressure flow is due to the difference of hydraulic pressure between the two sides of the membrane. Agitation is provided by the rotation of the auger. Purging is achieved with the air blow from the near bottom of the extruder, which is in vertical direction.

Wu Zhang; David Yang; Amar Amarnath; Iftikhar Huq; Scott O'Brien; Jim Williams

2006-12-22T23:59:59.000Z

274

NETL: Coal-Fired Power Plants (CFPPs)  

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

Coal Sources Coal-Fired Power Plants (CFPPs) Where is the coal in the United States? Coal Across the U.S. The U.S. contains coal resources in various places. The coal occurs...

275

The First Coal Plants  

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

Coal Plants Coal Plants Nature Bulletin No. 329-A January 25, 1969 Forest Preserve District of Cook County George W. Dunne, President Roland F. Eisenbeis, Supt. of Conservation THE FIRST COAL PLANTS Coal has been called "the mainspring" of our civilization. You are probably familiar, in a general way, with the story of how it originated ages ago from beds of peat which were very slowly changed to coal; and how it became lignite or brown coal, sub-bituminous, bituminous, or anthracite coal, depending on bacterial and chemical changes in the peat, how much it was compressed under terrific pressure, and the amount of heat involved in the process. You also know that peat is formed by decaying vegetation in shallow clear fresh-water swamps or bogs, but it is difficult to find a simple description of the kinds of plants that, living and dying during different periods of the earth's history, created beds of peat which eventually became coal.

276

Indonesian coal mining  

Science Conference Proceedings (OSTI)

The article examines the opportunities and challenges facing the Indonesian coal mining industry and how the coal producers, government and wider Indonesian society are working to overcome them. 2 figs., 1 tab.

NONE

2008-11-15T23:59:59.000Z

277

Stacker speeds coal recovery  

SciTech Connect

The Spring Creek Coal Co., near Decker, Montana, features the only stacker/reclaimer in the U.S. to stockpile and reclaim coal produced by a dragline/truck-shovel operation.

Jackson, D.

1981-08-01T23:59:59.000Z

278

Quarterly Coal Report  

Gasoline and Diesel Fuel Update (EIA)

March 2011 DOEEIA-0121 (201004Q) Revised: July 2012 Quarterly Coal Report October - December 2010 March 2011 U.S. Energy Information Administration Office of Oil, Gas, and Coal...

279

Coal Market Module  

Annual Energy Outlook 2012 (EIA)

6, DOEEIA-M060(2006) (Washington, DC, 2006). Key Assumptions Coal Production The coal production submodule of the CMM generates a different set of supply curves for the CMM for...

280

Microbial solubilization of coal  

DOE Patents (OSTI)

This invention deals with the solubilization of coal using species of Streptomyces. Also disclosed is an extracellular component from a species of Streptomyces, said component being able to solubilize coal.

Strandberg, Gerald W. (Farragut, TN); Lewis, Susan N. (Knoxville, TN)

1990-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "metallurgical coal flows" 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

Overview of coal conversion  

SciTech Connect

The structure of coal and the processes of coal gasification and coal liquefaction are reviewed. While coal conversion technology is not likely to provide a significant amount of synthetic fuel within the next several years, there is a clear interest both in government and private sectors in the development of this technology to hedge against ever-diminishing petroleum supplies, especially from foreign sources. It is evident from this rather cursory survey that there is some old technology that is highly reliable; new technology is being developed but is not ready for commercialization at the present state of development. The area of coal conversion is ripe for exploration both on the applied and basic research levels. A great deal more must be understood about the reactions of coal, the reactions of coal products, and the physics and chemistry involved in the various stages of coal conversion processes in order to make this technology economically viable.

Clark, B.R.

1981-03-27T23:59:59.000Z

282

Coal Production 1992  

SciTech Connect

Coal Production 1992 provides comprehensive information about US coal production, the number of mines, prices, productivity, employment, productive capacity, and recoverable reserves to a wide audience including Congress, Federal and State agencies, the coal industry, and the general public. In 1992, there were 3,439 active coal mining operations made up of all mines, preparation plants, and refuse operations. The data in Table 1 cover the 2,746 mines that produced coal, regardless of the amount of production, except for bituminous refuse mines. Tables 2 through 33 include data from the 2,852 mining operations that produced, processed, or prepared 10 thousand or more short tons of coal during the period, except for bituminous refuse, and includes preparation plants with 5 thousand or more employee hours. These mining operations accounted for over 99 percent of total US coal production and represented 83 percent of all US coal mining operations in 1992.

1993-10-29T23:59:59.000Z

283

Chemicals from coal  

Science Conference Proceedings (OSTI)

This chapter contains sections titled: Chemicals from Coke Oven Distillate; The Fischer-Tropsch Reaction; Coal Hydrogenation; Substitute Natural Gas (SNG); Synthesis Gas Technology; Calcium Carbide; Coal and the Environment; and Notes and References

Harold A. Wittcoff; Bryan G. Reuben; Jeffrey S. Plotkin

2004-12-01T23:59:59.000Z

284

Coal News and Markets  

U.S. Energy Information Administration (EIA)

Over the past month and a half, NAP spot coal prices have been flat or declining (graph above). ... (the walls of coal left in place to support the roof), ...

285

NETL: Coal Utilization By-Products (CUB)  

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

Home > Technologies > Coal & Power Systems > Innovations for Existing Plants > Coal Utilization Byproducts Innovations for Existing Plants Solid Waste (Coal Utilization...

286

Coal gasification apparatus  

DOE Patents (OSTI)

Coal hydrogenation vessel has hydrogen heating passages extending vertically through its wall and opening into its interior.

Nagy, Charles K. (Monaca, PA)

1982-01-01T23:59:59.000Z

287

Method for fluorinating coal  

DOE Patents (OSTI)

Coal is fluorinated by contact with fluorine gas at low pressure. After pial fluorination, when the reaction rate has slowed, the pressure is slowly increased until fluorination is complete, forming a solid fluorinated coal of approximate composition CF.sub.1.55 H.sub.0.15. The fluorinated coal and a solid distillate resulting from vacuum pyrolysis of the fluorinated coal are useful as an internal standard for mass spectrometric unit mass assignments from about 100 to over 1500.

Huston, John L. (Skokie, IL); Scott, Robert G. (Westmont, IL); Studier, Martin H. (Downers Grove, IL)

1978-01-01T23:59:59.000Z

288

Ore components in coal  

Science Conference Proceedings (OSTI)

The dependence of the mineral content in coal and concentrates on the degree of metamorphism is analyzed.

Kh.A. Ishhakov [Russian Academy of Sciences, Kemerovo (Russian Federation). Institute of Coal and Coal Chemistry, Siberian Branch

2009-05-15T23:59:59.000Z

289

Coal Industry Annual, 1996  

Reports and Publications (EIA)

Provides comprehensive information about U.S. coal production, number of mines, prices, productivity, employment, productive capacity, and recoverable reserves.

Fred Freme

1998-04-01T23:59:59.000Z

290

Coal Industry Annual, 1997  

Reports and Publications (EIA)

Provides comprehensive information about U.S. coal production, number of mines, prices, productivity, employment, productive capacity, and recoverable reserves.

Fred Freme

1998-11-23T23:59:59.000Z

291

Coal Industry Annual, 1995  

Reports and Publications (EIA)

Provides comprehensive information about U.S. coal production, number of mines, prices, productivity, employment, productive capacity, and recoverable reserves.

Fred Freme

1996-11-17T23:59:59.000Z

292

Coal Industry Annual, 1998  

Reports and Publications (EIA)

Provides comprehensive information about U.S. coal production, number of mines, prices, productivity, employment, productive capacity, and recoverable reserves.

Fred Freme

2000-07-07T23:59:59.000Z

293

Coal Industry Annual, 1994  

Reports and Publications (EIA)

Provides comprehensive information about U.S. coal production, number of mines, prices, productivity, employment, productive capacity, and recoverable reserves.

Fred Freme

1996-04-18T23:59:59.000Z

294

Coal Industry Annual, 1999  

Reports and Publications (EIA)

Provides comprehensive information about U.S. coal production, number of mines, prices, productivity, employment, productive capacity, and recoverable reserves.

Information Center

295

Coal Industry Annual, 2000  

Reports and Publications (EIA)

Provides comprehensive information about U.S. coal production, number of mines, prices, productivity, employment, productive capacity, and recoverable reserves.

Information Center

296

Coal News and Markets  

U.S. Energy Information Administration (EIA)

... (Energy Publishing, Coal & Energy Price Report, Bulletin, ... Although, the soaring demands of the Chinese steel industry are still with us, ...

297

Flash hydrogenation of coal  

DOE Patents (OSTI)

A process for the hydrogenation of coal comprising the contacting of powdered coal with hydrogen in a rotating fluidized bed reactor. A rotating fluidized bed reactor suitable for use in this process is also disclosed. The coal residence time in the reactor is limited to less than 5 seconds while the hydrogen contact time is not in excess of 0.2 seconds.

Manowitz, Bernard (Brightwaters, NY); Steinberg, Meyer (Huntington Station, NY); Sheehan, Thomas V. (Hampton Bays, NY); Winsche, Warren E. (Bellport, NY); Raseman, Chad J. (Setauket, NY)

1976-01-01T23:59:59.000Z

298

Proceedings: Coal Combustion Workshop  

Science Conference Proceedings (OSTI)

The primary objective of the 2007 Coal Combustion workshop was to present a holistic view of the various combustion processes required for minimal emissions, peak performance, and maximum reliability in a coal-fired power plant. The workshop also defined needs for future RD in coal combustion technology.

2008-01-09T23:59:59.000Z

299

Coal production 1989  

SciTech Connect

Coal Production 1989 provides comprehensive information about US coal production, the number of mines, prices, productivity, employment, reserves, and stocks to a wide audience including Congress, federal and state agencies, the coal industry, and the general public. 7 figs., 43 tabs.

1990-11-29T23:59:59.000Z

300

Coal Market Module  

Reports and Publications (EIA)

Documents the objectives and the conceptual and methodological approach used in the development of the National Energy Modeling System's (NEMS) Coal Market Module (CMM) used to develop the Annual Energy Outlook 2013 (AEO2013). This report catalogues and describes the assumptions, methodology, estimation techniques, and source code of CMM's two submodules. These are the Coal Production Submodule (CPS) and the Coal Distribution Submodule (CDS).

Michael Mellish

2013-07-17T23:59:59.000Z

Note: This page contains sample records for the topic "metallurgical coal flows" 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

USE OF COAL DRYING TO REDUCE WATER CONSUMED IN PULVERIZED COAL POWER PLANTS  

SciTech Connect

Low rank fuels such as subbituminous coals and lignites contain significant amounts of moisture compared to higher rank coals. Typically, the moisture content of subbituminous coals ranges from 15 to 30 percent, while that for lignites is between 25 and 40 percent, where both are expressed on a wet coal basis. High fuel moisture has several adverse impacts on the operation of a pulverized coal generating unit. High fuel moisture results in fuel handling problems, and it affects heat rate, mass rate (tonnage) of emissions, and the consumption of water needed for evaporative cooling. This project deals with lignite and subbituminous coal-fired pulverized coal power plants, which are cooled by evaporative cooling towers. In particular, the project involves use of power plant waste heat to partially dry the coal before it is fed to the pulverizers. Done in a proper way, coal drying will reduce cooling tower makeup water requirements and also provide heat rate and emissions benefits. The technology addressed in this project makes use of the hot circulating cooling water leaving the condenser to heat the air used for drying the coal (Figure 1). The temperature of the circulating water leaving the condenser is usually about 49 C (120 F), and this can be used to produce an air stream at approximately 43 C (110 F). Figure 2 shows a variation of this approach, in which coal drying would be accomplished by both warm air, passing through the dryer, and a flow of hot circulating cooling water, passing through a heat exchanger located in the dryer. Higher temperature drying can be accomplished if hot flue gas from the boiler or extracted steam from the turbine cycle is used to supplement the thermal energy obtained from the circulating cooling water. Various options such as these are being examined in this investigation. This is the eleventh Quarterly Report for this project. The background and technical justification for the project are described, including potential benefits of reducing fuel moisture using power plant waste heat, prior to firing the coal in a pulverized coal boiler. During this last Quarter, the development of analyses to determine the costs and financial benefits of coal drying was continued. The details of the model and key assumptions being used in the economic evaluation are described in this report.

Edward Levy

2005-10-01T23:59:59.000Z

302

Coal Combustion Products | Department of Energy  

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

Combustion Products Coal Combustion Products Coal combustion products (CCPs) are solid materials produced when coal is burned to generate electricity. Since coal provides the...

303

Quarterly Coal Distribution Report - Energy Information Administration  

U.S. Energy Information Administration (EIA)

The Quarterly Coal Distribution Report (QCDR) provides detailed U.S. domestic coal distribution data by coal origin state, coal destination state, mode of ...

304

Advanced Coal Wind Hybrid: Economic Analysis  

E-Print Network (OSTI)

Prices in 2007 real $ Coal Prices Coal prices have been farprices. Factors like coal prices and EOR revenues affect theCoal Prices..

Phadke, Amol

2008-01-01T23:59:59.000Z

305

Quarterly Coal Distribution Report - Energy Information ...  

U.S. Energy Information Administration (EIA)

The Quarterly Coal Distribution Report (QCDR) provides detailed U.S. domestic coal distribution data by coal origin state, coal destination state, mode of ...

306

Recycling of rubber tires in electric arc furnace steelmaking: simultaneous combustion of metallurgical coke and rubber tyres blends  

Science Conference Proceedings (OSTI)

The present study investigates the effect of addition of waste rubber tires on the combustion behavior of its blends with coke for carbon injection in electric arc furnace steelmaking. Waste rubber tires were mixed in different proportions with metallurgical coke (MC) (10:90, 20:80, 30:70) for combustion and pyrolysis at 1473 K in a drop tube furnace (DTF) and thermogravimetric analyzer (TGA), respectively. Under experimental conditions most of the rubber blends indicated higher combustion efficiencies compared to those of the constituent coke. In the early stage of combustion the weight loss rate of the blends is much faster compared to that of the raw coke due to the higher volatile yield of rubber. The presence of rubber in the blends may have had an impact upon the structure during the release and combustion of their high volatile matter (VM) and hence increased char burnout. Measurements of micropore surface area and bulk density of the chars collected after combustion support the higher combustion efficiency of the blends in comparison to coke alone. The surface morphology of the 30% rubber blend revealed pores in the residual char that might be attributed to volatile evolution during high temperature reaction in oxygen atmosphere. Physical properties and VM appear to have a major effect upon the measured combustion efficiency of rubber blends. The study demonstrates that waste rubber tires can be successfully co-injected with metallurgical coke in electric arc furnace steelmaking process to provide additional energy from combustion. 44 refs., 11 figs., 2 tabs.

Magdalena Zaharia; Veena Sahajwalla; Byong-Chul Kim; Rita Khanna; N. Saha-Chaudhury; Paul O'Kane; Jonathan Dicker; Catherine Skidmore; David Knights [University of New South Wales, Sydney, NSW (Australia). School of Materials Science and Engineering

2009-05-15T23:59:59.000Z

307

Reservoir Characterization of Coals in the Powder River Basin, Wyoming, USA, to Test the Feasibility of CO2 Sequestration  

E-Print Network (OSTI)

80 65 51 36 21 mD a) b) c) 7 Reservoir Characterization of Coals in the Powder River Basin, Wyoming are particularly interested in whether hydraulically fracturing the coal will increase injectivity and improve of sequestration. We found that gravity and buoyancy were the major driving forces behind gas flow within the coal

Stanford University

308

Coal log pipeline research at the University of Missouri. 3rd Quarterly report, July 1, 1993--September 30, 1993  

SciTech Connect

This report summarizes a research program on the transport of coal by formation of coal logs, and subsequent transport in pipelines. Separate projects within this program address questions on the formation of the coal logs, flow in pipelines, including slurry pipelines, interaction with water, wear in pipelines, and questions on economics and legal aspects.

Liu, H.

1994-05-01T23:59:59.000Z

309

Slurry atomizer for a coal-feeder and dryer used to provide coal at gasifier pressure  

DOE Patents (OSTI)

The present invention is directed to a coal-water slurry atomizer for use a high-pressure dryer employed in a pumping system utilized to feed coal into a pressurized coal gasifier. The slurry atomizer is provided with a venturi, constant area slurry injection conduit, and a plurality of tangentially disposed steam injection ports. Superheated steam is injected into the atomizer through these ports to provide a vortical flow of the steam, which, in turn, shears slurry emerging from the slurry injection conduit. The droplets of slurry are rapidly dispersed in the dryer through the venturi where the water is vaporized from the slurry by the steam prior to deleterious heating of the coal.

Loth, John L. (Morgantown, WV); Smith, William C. (Morgantown, WV); Friggens, Gary R. (Morgantown, WV)

1982-01-01T23:59:59.000Z

310

Plasma gasification of coal in different oxidants  

Science Conference Proceedings (OSTI)

Oxidant selection is the highest priority for advanced coal gasification-process development. This paper presents comparative analysis of the Powder River Basin bituminous-coal gasification processes for entrained-flow plasma gasifier. Several oxidants, which might be employed for perspective commercial applications, have been chosen, including air, steam/carbon-dioxide blend, carbon dioxide, steam, steam/air, steam/oxygen, and oxygen. Synthesis gas composition, carbon gasification degree, specific power consumptions, and power efficiency for these processes were determined. The influence of the selected oxidant composition on the gasification-process main characteristics have been investigated.

Matveev, I.B.; Messerle, V.E.; Ustimenko, A.B. [Applied Plasma Technology, Mclean, VA (USA)

2008-12-15T23:59:59.000Z

311

Coal recovery process  

DOE Patents (OSTI)

A method for the beneficiation of coal by selective agglomeration and the beneficiated coal product thereof is disclosed wherein coal, comprising impurities, is comminuted to a particle size sufficient to allow impurities contained therein to disperse in water, an aqueous slurry is formed with the comminuted coal particles, treated with a compound, such as a polysaccharide and/or disaccharide, to increase the relative hydrophilicity of hydrophilic components, and thereafter the slurry is treated with sufficient liquid agglomerant to form a coagulum comprising reduced impurity coal.

Good, Robert J. (Grand Island, NY); Badgujar, Mohan (Williamsville, NY)

1992-01-01T23:59:59.000Z

312

Coal | Department of Energy  

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

Coal Coal Coal Coal Coal is the largest domestically produced source of energy in America and is used to generate a significant chunk of our nation's electricity. The Energy Department is working to develop technologies that make coal cleaner, so we can ensure it plays a part in our clean energy future. The Department is also investing in development of carbon capture, utilization and storage (CCUS) technologies, also referred to as carbon capture, utilization and sequestration. Featured Energy Secretary Moniz Visits Clean Coal Facility in Mississippi On Friday, Nov. 8, 2013, Secretary Moniz and international energy officials toured Kemper, the nation's largest carbon capture and storage facility, in Liberty, Mississippi. A small Mississippi town is making history with the largest carbon capture

313

Rail Coal Transportation Rates  

Gasoline and Diesel Fuel Update (EIA)

Trends, 2001 - 2010 Trends, 2001 - 2010 Transportation infrastructure overview In 2010, railroads transported over 70 percent of coal delivered to electric power plants which are generally concentrated east of the Mississippi River and in Texas. The U.S. railroad market is dominated by four major rail companies that account for 99 percent of U.S. coal rail shipments by volume. Deliveries from major coal basins to power plants by mode Rail Barge Truck Figure 2. Deliveries from major coal basins to power plants by rail, 2010 figure data Figure 3. Deliveries from major coal basins to power plants by barge, 2010 figure data Figure 4. Deliveries from major coal basins to power plants by truck, 2010 figure data The Powder River Basin of Wyoming and Montana, where coal is extracted in

314

Coal production: 1980  

Science Conference Proceedings (OSTI)

US coal production and related data are reported for the year 1980, with similar data for 1979 given for comparison. The data here collected on Form EIA-7A, coal production report, from 3969 US mines that produced, processed, or prepared 10,000 or more short tons of coal in 1980. Among the items covered are production, prices, employment, productivity, stocks, and recoverable reserves. Data are reported by state, county, coal producing district, type of mining, and by type of coal (anthracite, bituminous, subbituminous, and lignite). Also included are a glossary of coal terms used, a map of the coal producing disricts, and form EIA-7A with instructions. 14 figures, 63 tables.

Not Available

1982-05-01T23:59:59.000Z

315

Coal: the new black  

SciTech Connect

Long eclipsed by oil and natural gas as a raw material for high-volume chemicals, coal is making a comeback, with oil priced at more than $100 per barrel. It is relatively cheap feedstock for chemicals such as methanol and China is building plants to convert coal to polyolefins on a large scale and interest is spreading worldwide. Over the years several companies in the US and China have made fertilizers via the gasification of coal. Eastman in Tennessee gasifies coal to make methanol which is then converted to acetic acid, acetic anhydride and acetate fiber. The future vision is to convert methanol to olefins. UOP and Lurgi are the major vendors of this technology. These companies are the respective chemical engineering arms of Honeywell and Air Liquide. The article reports developments in China, USA and India on coal-to-chemicals via coal gasification or coal liquefaction. 2 figs., 2 photo.

Tullo, A.H.; Tremblay, J.-F.

2008-03-15T23:59:59.000Z

316

Method for desulfurization of coal  

DOE Patents (OSTI)

A process and apparatus are disclosed for desulfurizing coal which removes sulfur in the inorganic and organic form by preferentially heating the inorganic iron sulfides in coal in a flowing gas to convert some of the inorganic iron sulfides from a pyrite form FeS[sub 2] to a troilite FeS form or a pyrrhotite form Fe[sub 1[minus]x]S and release some of the sulfur as a gaseous compound. The troilite and pyrrhotite forms are convenient catalyst for removing the organic sulfur in the next step, which is to react the coal with chemical agents such as alcohol, thus removing the organic sulfur as a liquid or a gas such as H[sub 2]S. The remaining inorganic sulfur is left in the predominantly higher magnetic form of pyrrhotite and is then removed by magnetic separation techniques. Optionally, an organic flocculant may be added after the organic sulfur has been removed and before magnetic separation. The flocculant attaches non-pyrite minerals with the pyrrhotite for removal by magnetic separation to reduce the ash-forming contents. 2 figs.

Kelland, D.R.

1987-07-07T23:59:59.000Z

317

Direct coal-fired gas turbines for combined cycle plants  

SciTech Connect

The combustion/emissions control island of the CFTCC plant produces cleaned coal combustion gases for expansion in the gas turbine. The gases are cleaned to protect the turbine from flow-path degeneration due to coal contaminants and to reduce environmental emissions to comparable or lower levels than alternate clean coal power plant tedmologies. An advantage of the CFTCC system over other clean coal technologies using gas turbines results from the CFTCC system having been designed as an adaptation to coal of a natural gas-fired combined cycle plant. Gas turbines are built for compactness and simplicity. The RQL combustor is designed using gas turbine combustion technology rather than process plant reactor technology used in other pressurized coal systems. The result is simpler and more compact combustion equipment than for alternate technologies. The natural effect is lower cost and improved reliability. In addition to new power generation plants, CFTCC technology will provide relatively compact and gas turbine compatible coal combustion/emissions control islands that can adapt existing natural gas-fired combined cycle plants to coal when gas prices rise to the point where conversion is economically attractive. Because of the simplicity, compactness, and compatibility of the RQL combustion/emission control island compared to other coal technologies, it could be a primary candidate for such conversions.

Rothrock, J.; Wenglarz, R.; Hart, P.; Mongia, H.

1993-11-01T23:59:59.000Z

318

Method for increasing the calorific value of gas produced by the in situ combustion of coal  

DOE Patents (OSTI)

The present invention relates to the production of relatively high Btu gas by the in situ combustion of subterranean coal. The coal bed is penetrated with a horizontally-extending borehole and combustion is initiated in the coal bed contiguous to the borehole. The absolute pressure within the resulting combustion zone is then regulated at a desired value near the pore pressure within the coal bed so that selected quantities of water naturally present in the coal will flow into the combustion zone to effect a hydrogen and carbon monoxide-producing steam-carbon reaction with the hot carbon in the combustion zone for increasing the calorific value of the product gas.

Shuck, Lowell Z. (Morgantown, WV)

1978-01-01T23:59:59.000Z

319

Process for hydrogenating coal and coal solvents  

SciTech Connect

A novel process is described for the hydrogenation of coal by the hydrogenation of a solvent for the coal in which the hydrogenation of the coal solvent is conducted in the presence of a solvent hydrogenation catalyst of increased activity, wherein the hydrogenation catalyst is produced by reacting ferric oxide with hydrogen sulfide at a temperature range of 260.degree. C. to 315.degree. C. in an inert atmosphere to produce an iron sulfide hydrogenation catalyst for the solvent. Optimally, the reaction temperature is 275.degree. C. Alternately, the reaction can be conducted in a hydrogen atmosphere at 350.degree. C.

Tarrer, Arthur R. (Auburn, AL); Shridharani, Ketan G. (Auburn, AL)

1983-01-01T23:59:59.000Z

320

Thermodynamic properties of pulverized coal during rapid heating devolatilization processes  

SciTech Connect

The thermodynamic properties of coal under conditions of rapid heating have been determined using a combination of UTRC facilities including a proprietary rapid heating rate differential thermal analyzer (RHR-DTA), a microbomb calorimeter (MBC), an entrained flow reactor (EFR), an elemental analyzer (EA), and a FT-IR. The total heat of devolatilization, was measured for a HVA bituminous coal (PSOC 1451D, Pittsburgh No. 8) and a LV bituminous coal (PSOC 1516D, Lower Kittaning). For the HVA coal, the contributions of each of the following components to the overall heat of devolatilization were measured: the specific heat of coal/char during devolatilization, the heat of thermal decomposition of the coal, the specific heat capacity of tars, and the heat of vaporization of tars. Morphological characterization of coal and char samples was performed at the University of Pittsburgh using a PC-based image analysis system, BET apparatus, helium pcynometer, and mercury porosimeter. The bulk density, true density, CO{sub 2} surface area, pore volume distribution, and particle size distribution as a function of extent of reaction are reported for both the HVA and LV coal. Analyses of the data were performed to obtain the fractal dimension of the particles as well as estimates for the external surface area. The morphological data together with the thermodynamic data obtained in this investigation provides a complete database for a set of common, well characterized coal and char samples. This database can be used to improve the prediction of particle temperatures in coal devolatilization models. Such models are used both to obtain kinetic rates from fundamental studies and in predicting furnace performance with comprehensive coal combustion codes. Recommendations for heat capacity functions and heats of devolatilization for the HVA and LV coals are given. Results of sample particle temperature calculations using the recommended thermodynamic properties are provided.

Proscia, W.M.; Freihaut, J.D. [United Technologies Research Center, E. Hartford, CT (United States); Rastogi, S.; Klinzing, G.E. [Univ. of Pittsburg, PA (United States)

1994-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "metallurgical coal flows" 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

Mulled coal - a beneficiated coal form for use as a fuel or fuel intermediate. Technical progress report No. 11, October 1, 1992--December 31, 1992  

SciTech Connect

Under the auspices of the DOE and private industry, considerable progress has been made in: preparation of coal-water fuels; combustion of low-ash coal-based fuel forms; processes to provide deeply-cleaned coal. Developments in advanced beneficiation of coal to meet stringent requirements for low ash and low sulfur can be anticipated to further complicate the problem areas associated with this product. This is attributable to the beneficiated coal being procured in very fine particles with high surface areas, modified surface characteristics, reduced particle size distribution range, and high inherent moisture. Experience in the storage, handling, and transport of highly beneficiated coal has been limited. This is understandable, as quantities of such product are only now becoming available in meaningful quantities. Since the inception of the project, the authors have: developed formulations to stabilize wet filter cake into a granular free flowing material (Mulled Coal); applied the formulation to wet cake from a variety of coal sources ranging from anthracite to subbituminous coal; evaluated effects of moisture loss on mull properties; developed design concepts for equipment for preparing the Mulled Coal and converting it into Coal Water Fuel; obtained storage and handling system design data for the granular coal; completed the 74-day aging study on various mull formulations to determine the effects of time and exposure on mull properties; demonstrated the continuous production of mulled coal from wet filter cake; performed atomization studies on Mulled Coal and CWF prepared from Mulled Coal; developed a standardized set of empirical tests to evaluate handling characteristics of various mull formulations; completed integrated, continuous mulling process circuit design. During this report period they have completed coal aging studies; plant design is being reviewed; and final report preparation has begun.

1993-01-01T23:59:59.000Z

322

Coal Direct Chemical Looping (CDCL) Process Development  

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

Direct Chemical Looping (CDCL) Retrofit to Direct Chemical Looping (CDCL) Retrofit to Pulverized Coal Power Plants for In-Situ CO 2 Capture William G. Lowrie Department of Chemical & Biomolecular Engineering The Ohio State University Columbus, OH 43210 Award #: DE-NT0005289 PI: Liang-Shih Fan Presenter: Samuel Bayham Department of Chemical and Biomolecular Engineering The Ohio State University 2013 NETL CO2 Capture Technology Meeting July 11, 2013 Pittsburgh, PA Clean Coal Research Laboratory at The Ohio State University Sub-Pilot Scale Unit 250kW th Pilot Unit (Wilsonville, Alabama) Syngas Chemical Looping Coal-Direct Chemical Looping Cold Flow Model Sub-Pilot Scale Unit HPHT Slurry Bubble Column 120kW th Demonstration Unit Calcium Looping Process CCR Process Sub-Pilot Unit F-T Process

323

Process for fixed bed coal gasification  

SciTech Connect

The combustion of gas produced from the combination of coal pyrolysis and gasification involves combining a combustible gas coal and an oxidant in a pyrolysis chamber and heating the components to a temperature of at least 1600.degree. F. The products of coal pyrolysis are dispersed from the pyrolyzer directly into the high temperature gasification region of a pressure vessel. Steam and air needed for gasification are introduced in the pressure vessel and the materials exiting the pyrolyzer flow down through the pressure vessel by gravity with sufficient residence time to allow any carbon to form carbon monoxide. Gas produced from these reactions are then released from the pressure vessel and ash is disposed of.

Sadowski, Richard S. (Greenville, SC)

1992-01-01T23:59:59.000Z

324

Coal sector profile  

SciTech Connect

Coal is our largest domestic energy resource with recoverable reserves estimated at 268 billion short tons or 5.896 quads Btu equivalent. This is approximately 95 percent of US fossil energy resources. It is relatively inexpensive to mine, and on a per Btu basis it is generally much less costly to produce than other energy sources. Its chief drawbacks are the environmental, health and safety concerns that must be addressed in its production and consumption. Historically, coal has played a major role in US energy markets. Coal fueled the railroads, heated the homes, powered the factories. and provided the raw materials for steel-making. In 1920, coal supplied over three times the amount of energy of oil, gas, and hydro combined. From 1920 until the mid 1970s, coal production remained fairly constant at 400 to 600 million short tons a year. Rapid increases in overall energy demands, which began during and after World War II were mostly met by oil and gas. By the mid 1940s, coal represented only half of total energy consumption in the US. In fact, post-war coal production, which had risen in support of the war effort and the postwar Marshall plan, decreased approximately 25 percent between 1945 and 1960. Coal demand in the post-war era up until the 1970s was characterized by increasing coal use by the electric utilities but decreasing coal use in many other markets (e.g., rail transportation). The oil price shocks of the 1970s, combined with natural gas shortages and problems with nuclear power, returned coal to a position of prominence. The greatly expanded use of coal was seen as a key building block in US energy strategies of the 1970s. Coal production increased from 613 million short tons per year in 1970 to 950 million short tons in 1988, up over 50 percent.

1990-06-05T23:59:59.000Z

325

Method for gasification of deep, thin coal seams. [DOE patent  

DOE Patents (OSTI)

A method of gasification of coal in deep, thin seams by using controlled bending subsidence to confine gas flow to a region close to the unconsumed coal face is given. The injection point is moved sequentially around the perimeter of a coal removal area from a production well to sweep out the area to cause the controlled bending subsidence. The injection holes are drilled vertically into the coal seam through the overburden or horizontally into the seam from an exposed coal face. The method is particularly applicable to deep, thin seams found in the eastern United States and at abandoned strip mines where thin seams were surface mined into a hillside or down a modest dip until the overburden became too thick for further mining.

Gregg, D.W.

1980-08-29T23:59:59.000Z

326

Method for gasification of deep, thin coal seams  

DOE Patents (OSTI)

A method of gasification of coal in deep, thin seams by using controlled bending subsidence to confine gas flow to a region close to the unconsumed coal face. The injection point is moved sequentially around the perimeter of a coal removal area from a production well to sweep out the area to cause the controlled bending subsidence. The injection holes are drilled vertically into the coal seam through the overburden or horizontally into the seam from an exposed coal face. The method is particularly applicable to deep, thin seams found in the eastern United States and at abandoned strip mines where thin seams were surface mined into a hillside or down a modest dip until the overburden became too thick for further mining.

Gregg, David W. (Moraga, CA)

1982-01-01T23:59:59.000Z

327

Future Impacts of Coal Distribution Constraints on Coal Cost  

E-Print Network (OSTI)

a particular type of coal, each of which is inherentlyThere are four classes of coal: bituminous, sub-bituminous,minerals Metallic ores Coal Crude petroleum Gasoline Fuel

McCollum, David L

2007-01-01T23:59:59.000Z

328

Coal Direct Chemical Looping Retrofit for Pulverized Coal-Fired...  

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

Coal Direct Chemical Looping Retrofit for Pulverized Coal-Fired Power Plants with In-Situ CO 2 Capture Background Pulverized coal (PC)-fired power plants provide nearly 50% of...

329

Future Impacts of Coal Distribution Constraints on Coal Cost  

E-Print Network (OSTI)

the costs have on the price of coal delivered by railroadsindicate that the price of coal delivered by railroads ismake up the delivered price of coal that electric plants are

McCollum, David L

2007-01-01T23:59:59.000Z

330

PressurePressure Indiana Coal Characteristics  

E-Print Network (OSTI)

TimeTime PressurePressure · Indiana Coal Characteristics · Indiana Coals for Coke · CoalTransportation in Indiana · Coal Slurry Ponds Evaluation · Site Selection for Coal Gasification · Coal-To-Liquids Study, CTL · Indiana Coal Forecasting · Under-Ground Coal Gasification · Benefits of Oxyfuel Combustion · Economic

Fernández-Juricic, Esteban

331

Contaminants in coals and coal residues. [10 refs  

SciTech Connect

Most of the major enviromental pollutants from coals originate as impurities in the coal structure. These include various organic compounds, minerals, and trace elements that are released into the air and water when coal is mined, processed and utilized. The use of coal preparation to produce cleaner burning fuels involves an environmental compromise, wherein reduced emissions and solid wastes from coal burning sources are achieved at the expense of greater environmental degradation from coal cleaning wastes.

Wewerka, E.M.; Williams, J.M.; Vanderborgh, N.E.

1976-01-01T23:59:59.000Z

332

Coal Distribution Database, 2008  

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

4Q 2009 4Q 2009 April 2010 Quarterly Coal Distribution Table Format and Data Sources 4Q 2009 In keeping with EIA's efforts to increase the timeliness of its reports, this Quarterly Coal Distribution Report is a preliminary report, based on the most current data available from EIA's various monthly, quarterly and annual surveys of the coal industry and electric power generation industry. The final report will rely on the receipt of annual data to replace the imputed monthly data for smaller electric generation plants that are excluded from the monthly filing requirement, and final data for all other respondents. The Coal Distribution Report traces coal from the origin State to the destination State by transportation mode. The data sources beginning with the 2008 Coal Distribution Report

333

WCI Case for Coal  

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

Coal Coal The role of as an energy source The role of coal as an energy source Key Messages * Energy demand has grown strongly and will continue to increase, particularly in developing countries where energy is needed for economic growth and poverty alleviation. * All energy sources will be needed to satisfy that demand by providing a diverse and balanced supply mix. * Coal is vital for global energy security. It is abundantly available, affordable, reliable and easy and safe to transport. * In an energy hungry world the challenge for coal, as for other fossil fuels, is to further substantially reduce its greenhouse gas and other emissions, while continuing to make a major contribution to economic and social development and energy security. * Coal is part way down a technology pathway that has already delivered major

334

NETL: Coal & Coal Biomass to Liquids - Reference Shelf  

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

Reference Shelf Coal and CoalBiomass to Liquids Reference Shelf Documents Papers Presentations DOCUMENTS 2012 Technology Readiness Assessment-Analysis of Active Research Portfolio...

335

Future Impacts of Coal Distribution Constraints on Coal Cost  

E-Print Network (OSTI)

coal (PC) or integrated gasification combined cycle ( IGCC)coal (PC) or integrated gasification combined cycle (IGCC)will be integrated gasification combined cycle (IGCC) (Same

McCollum, David L

2007-01-01T23:59:59.000Z

336

DESULFURIZATION OF COAL MODEL COMPOUNDS AND COAL LIQUIDS  

E-Print Network (OSTI)

Credit Extra Fuel Oil Coal to gasifier Na cost· Na processoiL Replace res. with coal as gasifier feed. 543 ton/day @$

Wrathall, James Anthony

2011-01-01T23:59:59.000Z

337

Annul Coal Consumption by Country (1980 -2009) Total annual coal  

Open Energy Info (EERE)

Annul Coal Consumption by Country (1980 -2009) Total annual coal consumption by country, 1980 to 2009 (available as Quadrillion Btu). Compiled by Energy Information Administration...

338

NETL: Coal & Coal Biomass to Liquids - Project Information  

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

Project Information CoalBiomass Feed and Gasification Development of Biomass-Infused Coal Briquettes for Co-Gasification FE0005293 Development of Kinetics and Mathematical...

339

Illinois Coal Revival Program (Illinois)  

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

The Illinois Coal Revival Program is a grants program providing partial funding to assist with the development of new, coal-fueled electric generation capacity and coal gasification or IGCC units...

340

Coal Mining Tax Credit (Arkansas)  

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

The Coal Mining Tax Credit provides an income or insurance premium tax credit of $2.00 per ton of coal mined, produced or extracted on each ton of coal mined in Arkansas in a tax year. An...

Note: This page contains sample records for the topic "metallurgical coal flows" 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

COAL DESULFURIZATION PRIOR TO COMBUSTION  

E-Print Network (OSTI)

Corporation, 5-25~79. on Coal Liquefaction at ChevronHamersma, et a L, "Meyers Process for Coal Desulfurization,"in Wheelock, Coal Desulfurization, ACS Symp. Ser 64 (1977(.

Wrathall, J.

2013-01-01T23:59:59.000Z

342

Coal technology program progress report, February 1976  

DOE Green Energy (OSTI)

Final testing of the 20-atm bench-scale system is underway in preparation for experiments with hydrogen. Laboratory-scale testing of a number of inexpensive pure compounds to improve the settling rate of solids in Solvent Refined Coal (SRC) unfiltered oil (UFO), bench-scale testing of the effect of the Tretolite additive on settling, and characterization tests on a new sample of UFO from the PAMCO-SRC process are reported. Experimental engineering support of an in situ gasification process include low-temperature pyrolyses at exceptionally low heating rates (0.3/sup 0/C/min). Highly pyrophoric chars were consistently produced. Aqueous by-products from coal conversion technologies and oil shale retorting have been analyzed directly to determine major organic components. A report is being prepared discussing various aspects of the engineering evaluations of nuclear process heat for coal. A bench-scale test program on thermochemical water splitting for hydrogen production is under consideration. In the coal-fueled MIUS program, preparations for procurement of tubing for the matrix in the fluidized-bed furnace and for fabrication of the furnace continued. Analyses of the AiResearch gas turbine and recuperator under coal-fueled MIUS operating conditions are near completion. Process flow diagrams and heat and material balances were completed for most of the units in the synthoil process. Overall utilities requirements were calculated and the coal preparation flowsheets were finalized. For hydrocarbonization, the flowsheet was revised to include additional coal data. Flowsheets were finalized for the acid gas separation and recycle, and the oil-solids separation. (LTN)

None

1976-04-01T23:59:59.000Z

343

Method for preventing plugging in the pyrolysis of agglomerative coals  

SciTech Connect

To prevent plugging in a pyrolysis operation where an agglomerative coal in a nondeleteriously reactive carrier gas is injected as a turbulent jet from an opening into an elongate pyrolysis reactor, the coal is comminuted to a size where the particles under operating conditions will detackify prior to contact with internal reactor surfaces while a secondary flow of fluid is introduced along the peripheral inner surface of the reactor to prevent backflow of the coal particles. The pyrolysis operation is depicted by two equations which enable preselection of conditions which insure prevention of reactor plugging.

Green, Norman W. (Upland, CA)

1979-01-23T23:59:59.000Z

344

Measurement and modeling of advanced coal conversion processes, Volume II  

Science Conference Proceedings (OSTI)

A two dimensional, steady-state model for describing a variety of reactive and nonreactive flows, including pulverized coal combustion and gasification, is presented. The model, referred to as 93-PCGC-2 is applicable to cylindrical, axi-symmetric systems. Turbulence is accounted for in both the fluid mechanics equations and the combustion scheme. Radiation from gases, walls, and particles is taken into account using a discrete ordinates method. The particle phase is modeled in a lagrangian framework, such that mean paths of particle groups are followed. A new coal-general devolatilization submodel (FG-DVC) with coal swelling and char reactivity submodels has been added.

Solomon, P.R.; Serio, M.A.; Hamblen, D.G. [and others

1993-06-01T23:59:59.000Z

345

Back Issues of the Quarterly Coal Report  

Gasoline and Diesel Fuel Update (EIA)

coal > Quarterly Coal Report > Quarterly Coal Report Back Issues Quarterly Coal Report Back Issues of the Quarterly Coal Report Year 4thquarter 3rdquarter 2ndquarter 1stquarter QCR...

346

Fine Anthracite Coal Washing Using Spirals  

Science Conference Proceedings (OSTI)

The spiral performed well in cleaning the coarse 8 x 16 mesh size fraction, as demonstrated by the Ep ranging from 0.091 to 0.177. This is in line with typical spiral performance. In addition, the presence of the coarser size fraction did not significantly affect spiral performance on the typical 16 x 100 mesh fraction, in which the Ep ranged from 0.144 to 0.250. Changes in solids concentration and flow rate did not show a clear correlation with spiral performance. However, for difficult-to-clean coals with high near-gravity material, such as this anthracite, a single-stage spiral cleaning such a wide size fraction may not be able to achieve the clean coal ash and yield specifications required. In the first place, while the performance of the spiral on the coarse 8 x 16 mesh fraction is good with regard to Ep, the cutpoints (SG50s) are high (1.87 to 1.92), which may result in a clean coal with a higher-than-desired ash content. And second, the combination of the spiral's higher overall cutpoint (1.80) with the high near-gravity anthracite results in significant misplaced material that increases the clean coal ash error. In a case such as this, one solution may be to reclean the clean coal and middlings from the first-stage spiral in a second stage spiral.

R.P. Killmeyer; P.H. Zandhuis; M.V. Ciocco; W. Weldon; T. West; D. Petrunak

2001-05-31T23:59:59.000Z

347

Coal-water mixture fuel burner  

DOE Patents (OSTI)

The present invention represents an improvement over the prior art by providing a rotating cup burner arrangement for use with a coal-water mixture fuel which applies a thin, uniform sheet of fuel onto the inner surface of the rotating cup, inhibits the collection of unburned fuel on the inner surface of the cup, reduces the slurry to a collection of fine particles upon discharge from the rotating cup, and further atomizes the fuel as it enters the combustion chamber by subjecting it to the high shear force of a high velocity air flow. Accordingly, it is an object of the present invention to provide for improved combustion of a coal-water mixture fuel. It is another object of the present invention to provide an arrangement for introducing a coal-water mixture fuel into a combustion chamber in a manner which provides improved flame control and stability, more efficient combustion of the hydrocarbon fuel, and continuous, reliable burner operation. Yet another object of the present invention is to provide for the continuous, sustained combustion of a coal-water mixture fuel without the need for a secondary combustion source such as natural gas or a liquid hydrocarbon fuel. Still another object of the present invention is to provide a burner arrangement capable of accommodating a coal-water mixture fuel having a wide range of rheological and combustion characteristics in providing for its efficient combustion. 7 figs.

Brown, T.D.; Reehl, D.P.; Walbert, G.F.

1985-04-29T23:59:59.000Z

348

Pulverized coal fuel injector  

DOE Patents (OSTI)

A pulverized coal fuel injector contains an acceleration section to improve the uniformity of a coal-air mixture to be burned. An integral splitter is provided which divides the coal-air mixture into a number separate streams or jets, and a center body directs the streams at a controlled angle into the primary zone of a burner. The injector provides for flame shaping and the control of NO/NO.sub.2 formation.

Rini, Michael J. (Hebron, CT); Towle, David P. (Windsor, CT)

1992-01-01T23:59:59.000Z

349

Integrated coal liquefaction process  

DOE Patents (OSTI)

In a process for the liquefaction of coal in which coal liquids containing phenols and other oxygenated compounds are produced during the liquefaction step and later hydrogenated, oxygenated compounds are removed from at least part of the coal liquids in the naphtha and gas oil boiling range prior to the hydrogenation step and employed as a feed stream for the manufacture of a synthesis gas or for other purposes.

Effron, Edward (Springfield, NJ)

1978-01-01T23:59:59.000Z

350

Gasification of Lignite Coal  

Science Conference Proceedings (OSTI)

This report on the gasification of lignite coal is presented in two parts. The first includes research into technology options for preparing low-rank fuels for gasification, gasifiers for converting the coal into synthesis gas, and technologies that may be used to convert synthesis gas into valuable chemical products. The second part focuses on performance and cost screening analyses for either Greenfield or retrofit gasification options fueled by low-rank lignite coal. The work was funded through Tailor...

2009-01-23T23:59:59.000Z

351

Fuel blending with PRB coal  

Science Conference Proceedings (OSTI)

Many methods exist to accomplish coal blending at a new or existing power plant. These range from a basic use of the secondary (emergency) stockout/reclaim system to totally automated coal handling facilities with segregated areas for two or more coals. Suitable choices for different sized coal plant are discussed, along with the major components of the coal handling facility affected by Powder River Basin coal. 2 figs.

McCartney, R.H.; Williams, R.L. Jr. [Roberts and Schaefer, Chicago, IL (United States)

2009-03-15T23:59:59.000Z

352

Coal liquefaction quenching process  

DOE Patents (OSTI)

There is described an improved coal liquefaction quenching process which prevents the formation of coke with a minimum reduction of thermal efficiency of the coal liquefaction process. In the process, the rapid cooling of the liquid/solid products of the coal liquefaction reaction is performed without the cooling of the associated vapor stream to thereby prevent formation of coke and the occurrence of retrograde reactions. The rapid cooling is achieved by recycling a subcooled portion of the liquid/solid mixture to the lower section of a phase separator that separates the vapor from the liquid/solid products leaving the coal reactor.

Thorogood, Robert M. (Macungie, PA); Yeh, Chung-Liang (Bethlehem, PA); Donath, Ernest E. (St. Croix, VI)

1983-01-01T23:59:59.000Z

353

Quarterly Coal Report  

Annual Energy Outlook 2012 (EIA)

December 2010 DOEEIA-0121 (201003Q) Revised: July 2012 Quarterly Coal Report July - September 2010 December 2010 U.S. Energy Information Administration Office of Oil, Gas, and...

354

Coal Combustion Products: Challenges  

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

Products: Challenges and Opportunities American Coal Ash Association Conference St. Petersburg, FL January 27-30, 2003 Carl O. Bauer National Energy Technology Laboratory...

355

Initiators of coal hydrogenation  

Science Conference Proceedings (OSTI)

The results are given of an investigation of the influence of additions of certain organosilicon compounds of cyclic and linear nature on the coal hydrogenation process.

Krichko, A.A.; Dembovskaya, E.A.; Gorlov, E.G.

1983-01-01T23:59:59.000Z

356

Clean Coal Projects (Virginia)  

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

This legislation directs the Virginia Air Pollution Control Board to facilitate the construction and implementation of clean coal projects by expediting the permitting process for such projects.

357

Coal Development (Nebraska)  

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

This section provides for the development of newly-discovered coal veins in the state, and county aid for such development.

358

Direct Coal Liquefaction  

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

solvent. * The coal fragments are further hydrocracked to produce a synthetic crude oil. * This synthetic crude must then undergo refinery upgrading and hydrotreating to...

359

Weekly NYMEX Coal Futures  

Reports and Publications (EIA)

The New York Mercantile Exchange (NYMEX) Report provides settlement price data for Central Appalachian (CAPP), Western Powder River Basin (PRB), and Eastern CSX Transportation (CSX) coal futures.

Information Center

360

Rail Coal Transportation Rates  

U.S. Energy Information Administration (EIA)

figure data Figure 7 shows the percent change in average real rates for those state-to-state ... Estimated transportation rates for coal delivered to electric ...

Note: This page contains sample records for the topic "metallurgical coal flows" 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

Coal News and Markets  

U.S. Energy Information Administration (EIA)

Speaking about Consol Energy’s 1Q05 earnings, J. Brett Harvey, president and CEO, noted that the “pricing environment for our coal is excellent, ...

362

Handbook of coal analysis  

SciTech Connect

The Handbook deals with the various aspects of coal analysis and provides a detailed explanation of the necessary standard tests and procedures that are applicable to coal in order to help define usage and behavior relative to environmental issues. It provides details of the meaning of various test results and how they might be applied to predict coal behavior during use. Emphasis is on ASTM standards and test methods but ISO and BSI standards methods are included. Chapter headings are: Coal analysis; Sampling and sample preparation; Proximate analysis; Ultimate analysis; Mineral matter; Physical and electrical properties; Thermal properties; Mechanical properties; Spectroscopic properties; Solvent properties; and Glossary.

James G. Speight

2005-05-01T23:59:59.000Z

363

A novel concept for high conversion of coal to liquids  

DOE Green Energy (OSTI)

The overall objective of this work is to demonstrate conversion of coal to produce at least 70% by weight of the coal as liquids, with ratios of liquids to gases in excess of 10/1, resulting in low hydrogen consumption and a significant reduction in the cost of producing hydrocarbon liquid fuels from coal. Utilizing a small continuous-flow reactor designed and constructed for this research, the maximum possible ratio of liquids to gases will be defined, operating at short residence times of a few seconds, at the same time converting more than 70% of the carbon in the coal to liquids. The practical ability to attain coal particle center-line temperatures of 500 {degree}C in one second or less, using hot hydrogen gas in turbulent flow, will also be demonstrated. Particle heat-up rates for a few selected system pressures and particle sizes will be determined. Catalysts will be screened and selected for sufficient activity and selectivity. Particle heat-up rates for small coal particles slurried in a super-critical hydrocarbon-type fluid will be examined, using hot hydrogen gas in turbulent flow as the heat transfer medium.

Wiser, W.H.; Shabtai, J.

1990-06-01T23:59:59.000Z

364

Advanced Coal Conversion Process Demonstration  

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

Clean Coal Technology Program Advanced Coal Conversion Process Demonstration A DOE Assessment DOENETL-20051217 U.S. Department of Energy Office of Fossil Energy National Energy...

365

Clean coal technologies market potential  

SciTech Connect

Looking at the growing popularity of these technologies and of this industry, the report presents an in-depth analysis of all the various technologies involved in cleaning coal and protecting the environment. It analyzes upcoming and present day technologies such as gasification, combustion, and others. It looks at the various technological aspects, economic aspects, and the various programs involved in promoting these emerging green technologies. Contents: Industry background; What is coal?; Historical background of coal; Composition of coal; Types of coal; Environmental effects of coal; Managing wastes from coal; Introduction to clean coal; What is clean coal?; Byproducts of clean coal; Uses of clean coal; Support and opposition; Price of clean coal; Examining clean coal technologies; Coal washing; Advanced pollution control systems; Advanced power generating systems; Pulverized coal combustion (PCC); Carbon capture and storage; Capture and separation of carbon dioxide; Storage and sequestration of carbon dioxide; Economics and research and development; Industry initiatives; Clean Coal Power Initiative; Clean Coal Technology Program; Coal21; Outlook; Case Studies.

Drazga, B. (ed.)

2007-01-30T23:59:59.000Z

366

NETL: Clean Coal Demonstrations - Clean Coal Today Newsletter  

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

Clean Coal Today Newsletter Clean Coal Today Newsletter Clean Coal Demonstrations Clean Coal Today Newsletter Clean Coal Today is a quarterly newsletter of the U.S. Department of Energy, Office of Fossil Energy (FE), Office of Clean Coal. Among other things, Clean Coal Today highlights progress under the Clean Coal Power Initiative, the Power Plant Improvement Initiative, and the few remaining projects of the original Clean Coal Technology Demonstration Program. Reporting on coal R&D performed at government laboratories, as well as in conjunction with stakeholders, it provides key information on FE's coal-related activities, most of which are directed toward near-zero emissions, ultra-efficient technologies of the future. Subscriptions are free – to have your name placed on the mailing list, contact the Editor at Phoebe.Hamill@hq.doe.gov.

367

Kingsnorth PF Flow Meter Demonstration Trials  

Science Conference Proceedings (OSTI)

A three-month demonstration project at PowerGen's Kingsnorth Power Station tested several new pulverized fuel (PF) flow measurement technologies in the harsh environment of an operational power station. Although further development may be warranted, current on-line PF flow measurement technologies already meet the basic requirements of coal fired boiler operators.

1999-06-30T23:59:59.000Z

368

Liquid chromatographic analysis of coal surface properties. Quarterly progress report, January--March 1994  

SciTech Connect

Experiments on flotation of 60--200 mesh treated Illinois No. 6 coal (PSOC-1539) and Wyodak coal (PSOC-1545) were performed. The coals were treated with 20-ppM alcohol aqueous solutions (soln) for 1-24 hours at the 0.002-g/min mass flow rate at 225C. Flotation of Illinois No. 6 coal, treated with 1-propanol aqueous solution, increases with treatment durations for the first 10 hours and then decreases. Flotation of Illinois No. 6 coal, treated with isopropanol soln increases with treatment durations for the first 18 hours and then levels off. Flotation of Illinois No. 6 coal, treated with butanol soln, increases with treatment durations. Flotation of 1-butanol-treated Illinois No. 6 coal is higher than that of t-butanol-treated Illinois No. 6 coal. Flotation of Illinois No. 6 coal, treated with 20-ppM-isobutanol 20-ppM-HCl soln, increases with treatment durations for the first 10 hours treatment period, and then decreases sharply with treatment durations. Flotation of Wyodak coal, treated with water only, increases with treatment durations. Effects of water treatment on flotation of Wyodak coal are significantly pronounced compared to Illinois No. 6 coal.

Kwon, K.C.; Martin, L.L.

1994-05-01T23:59:59.000Z

369

Split flow gasifier  

DOE Patents (OSTI)

A-moving bed coal gasifier for the production of tar-free, low ammonia fuel gas is described. The gasifier employs a combustion zone in a free-aboard area above the moving bed to burn coal fines to provide hot combustion gases for pyrolyzing and gasifying coal particulates in the moving bed to form fuel gas as the hot gases move co-currently with the downwardly moving coal particulates. The fuel gas contains entrained tars and ammonia compounds which contact hot char and ash in the moving bed and are cracked so that the fuel gas removed from the gasifier at a midpoint off-take is essentially tar-free and of low ammonia content. Concurrently with this gasification reaction, steam and an oxidant are introduced into a region below the moving bed to flow countercurrently to the downwardly moving bed to contact and react with carbon remaining in the char to create additional fuel gas which is also extracted from the gasifier at the mid-point off-take.

Halow, J.S.

1991-12-31T23:59:59.000Z

370

Does the presence of pseudovitrinite indicate gas-saturated coals? Some interesting observations from the Gething coals in Canada  

Science Conference Proceedings (OSTI)

The presence of pseudovitrinite at a depth of 1,000 m in the very gassy (up to 862 scf/ton total gas content, as-received basis) but low absolute permeability (0.5 mD), low-volatile bituminous Gething coals in the Canadian Foothills has been documented. Because oxidation is unlikely to occur at such depth, it is reasonable to expect that pseudovitrinite formed as a result of desiccation in a gas-saturated environment prior to the coals being uplifted to their present day depth. This raises the possibility that a coal that contains pseudovitrinite may have moisture content that is below its equilibrium moisture, which leads to higher methane adsorptive capacity compared with the same coal that has normal vitrinite (collotelinite). The presence of inertinite macerals in the coal, derived from wood fibers and charred remnants, has aided in the development and preservation of phyteral porosity and in the formation of interconnected microcavities, which should result in higher micropermeability and aid the flow of gas locally within the coal seam and surrounding strata. The Gething coals in the Highhat corehole share some of these characteristics, which may have important implications on the dynamics of coal-bed methane production. Volumetric strain (matrix shrinkage) of these gassy coals during production is conservatively estimated to be 0.5-0.75%, which may result in an absolute permeability increase of between 5 to 12 times, based on studies on coals of similar rank and gas content in United States basins. Although observations made in this preliminary study do not constitute a proof, they leave open the possibility of using pseudovitrinite, under certain circumstances, as an indicator of improved gas sorptive capacity and enhanced permeability in deep coals.

Gentzis, T. [Petron Resources LP, Frisco, TX (United States)

2008-07-01T23:59:59.000Z

371

STEO November 2012 - coal supplies  

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

Despite drop in domestic coal production, U.S. coal exports to reach Despite drop in domestic coal production, U.S. coal exports to reach record high in 2012. While U.S. coal production is down 7 percent this year due in part to utilities switching to low-priced natural gas to generate electricity, American coal is still finding plenty of buyers in overseas markets. U.S. coal exports are expected to hit a record 125 million tons in 2012, the U.S. Energy Information Administration says in its new monthly short-term energy outlook. Coal exports are expected to decline in 2013, primarily because of continuing economic weakness in Europe, lower international coal prices, and higher coal production in Asia. However, U.S. coal exports next year are still expected to top 100 million tons for the third year in a row

372

HS_Coal_Studyguide.indd  

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

Coal Coal Fossil Energy Study Guide: Coal Coal is the most plentiful fuel in the fossil family. The United States has more coal reserves than any other country in the world. In fact, one-fourth of all known coal in the world is in the United States, with large deposits located in 38 states. The United States has almost as much energ y in coal that can be mined as the rest of the world has in oil that can be pumped from the ground. TYPES OF COAL Coal is a black rock made up of large amounts of carbon. Like all fossil fuels, coal can be burned to release energy. Coal contains elements such as hydrogen, oxygen, and nitrogen; has various amounts of minerals; and is itself considered to be a mineral of organic origin. Due to the variety of materials buried over time in the

373

State coal profiles, January 1994  

SciTech Connect

The purpose of State Coal Profiles is to provide basic information about the deposits, production, and use of coal in each of the 27 States with coal production in 1992. Although considerable information on coal has been published on a national level, there is a lack of a uniform overview for the individual States. This report is intended to help fill that gap and also to serve as a framework for more detailed studies. While focusing on coal output, State Coal Profiles shows that the coal-producing States are major users of coal, together accounting for about three-fourths of total US coal consumption in 1992. Each coal-producing State is profiled with a description of its coal deposits and a discussion of the development of its coal industry. Estimates of coal reserves in 1992 are categorized by mining method and sulfur content. Trends, patterns, and other information concerning production, number of mines, miners, productivity, mine price of coal, disposition, and consumption of coal are detailed in statistical tables for selected years from 1980 through 1992. In addition, coal`s contribution to the State`s estimated total energy consumption is given for 1991, the latest year for which data are available. A US summary of all data is provided for comparing individual States with the Nation as a whole. Sources of information are given at the end of the tables.

1994-02-02T23:59:59.000Z

374

Coal liquefaction process  

DOE Patents (OSTI)

A C.sub.5 -900.degree. F. (C.sub.5 -482.degree. C.) liquid yield greater than 50 weight percent MAF feed coal is obtained in a coal liquefaction process wherein a selected combination of higher hydrogen partial pressure, longer slurry residence time and increased recycle ash content of the feed slurry are controlled within defined ranges.

Carr, Norman L. (Allison Park, PA); Moon, William G. (Cheswick, PA); Prudich, Michael E. (Pittsburgh, PA)

1983-01-01T23:59:59.000Z

375

Dry piston coal feeder  

SciTech Connect

This invention provides a solids feeder for feeding dry coal to a pressurized gasifier at elevated temperatures substantially without losing gas from the gasifier by providing a lock having a double-acting piston that feeds the coals into the gasifier, traps the gas from escaping, and expels the trapped gas back into the gasifier.

Hathaway, Thomas J. (Belle Meade, NJ); Bell, Jr., Harold S. (Madison, NJ)

1979-01-01T23:59:59.000Z

376

Method for coal liquefaction  

SciTech Connect

A process is disclosed for coal liquefaction in which minute particles of coal in intimate contact with a hydrogenation catalyst and hydrogen arc reacted for a very short time at a temperature in excess of 400.degree. C. at a pressure of at least 1500 psi to yield over 50% liquids with a liquid to gaseous hydrocarbon ratio in excess of 8:1.

Wiser, Wendell H. (Kaysville, UT); Oblad, Alex G. (Salt Lake City, UT); Shabtai, Joseph S. (Salt Lake City, UT)

1994-01-01T23:59:59.000Z

377

Mechanochemical hydrogenation of coal  

DOE Patents (OSTI)

Hydrogenation of coal is improved through the use of a mechanical force to reduce the size of the particulate coal simultaneously with the introduction of gaseous hydrogen, or other hydrogen donor composition. Such hydrogen in the presence of elemental tin during this one-step size reduction-hydrogenation further improves the yield of the liquid hydrocarbon product.

Yang, Ralph T. (Tonawanda, NY); Smol, Robert (East Patchogue, NY); Farber, Gerald (Elmont, NY); Naphtali, Leonard M. (Washington, DC)

1981-01-01T23:59:59.000Z

378

Apparatus and method for feeding coal into a coal gasifier  

DOE Patents (OSTI)

This invention is directed to a system for feeding coal into a gasifier operating at high pressures. A coal-water slurry is pumped to the desired pressure and then the coal is "dried" prior to feeding the coal into the gasifier by contacting the slurry with superheated steam in an entrained bed dryer for vaporizing the water in the slurry.

Bissett, Larry A. (Morgantown, WV); Friggens, Gary R. (Morgantown, WV); McGee, James P. (Morgantown, WV)

1979-01-01T23:59:59.000Z

379

Coal Distribution Database, 2008  

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

Destination State, Destination State, Consumer, Destination and Method of Transportation 3Q 2009 February 2010 Quarterly Coal Distribution Table Format and Data Sources 3Q 2009 In keeping with EIA's efforts to increase the timeliness of its reports, this Quarterly Coal Distribution Report is a preliminary report, based on the most current data available from EIA's various monthly, quarterly and annual surveys of the coal industry and electric power generation industry. The final report will rely on the receipt of annual data to replace the imputed monthly data for smaller electric generation plants that are excluded from the monthly filing requirement, and final data for all other respondents. The Coal Distribution Report traces coal from the origin State to the destination State by

380

By Coal Origin State  

Gasoline and Diesel Fuel Update (EIA)

Annual Coal Distribution Report 2010 Annual Coal Distribution Report 2010 U.S. Energy Information Administration | Annual Coal Distribution Report 2010 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 2010 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 7,906 821 1,242 - 9,969 Alabama Railroad 3,604 49 285 - 3,938 Alabama River 3,979 - - - 3,979 Alabama Truck 322 773 957 - 2,051 Florida Total - - 15 - 15 Florida Railroad - - 11 - 11 Florida Truck - - 3 - 3 Georgia Total 196 - 15 - 211 Georgia Railroad 189 - 1 - 190 Georgia Truck

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


381

Coal Distribution Database, 2008  

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

Origin State, Origin State, Consumer, Destination and Method of Transportation 3Q 2009 February 2010 Quarterly Coal Distribution Table Format and Data Sources 3Q 2009 In keeping with EIA's efforts to increase the timeliness of its reports, this Quarterly Coal Distribution Report is a preliminary report, based on the most current data available from EIA's various monthly, quarterly and annual surveys of the coal industry and electric power generation industry. The final report will rely on the receipt of annual data to replace the imputed monthly data for smaller electric generation plants that are excluded from the monthly filing requirement, and final data for all other respondents. The Coal Distribution Report traces coal from the origin State to the destination State by

382

Quarterly Coal Report  

Gasoline and Diesel Fuel Update (EIA)

2Q) 2Q) Distribution Category UC-950 Quarterly Coal Report April-June 1999 Energy Information Administration Office of Coal, Nuclear, Electric and Alternate Fuels U.S. Department of Energy Washington, DC 20585 This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the Department of Energy. The information contained herein should not be construed as advocating or reflecting any policy position of the Department of Energy or any other organization. Contacts This publication was prepared by Paulette Young under the direction of B.D. Hong, Leader, Coal Infor- mation Team, Office of Coal, Nuclear, Electric and Alternate Fuels. Questions addressing the Appendix A, U.S. Coal Imports section should be directed to Paulette Young at (202) 426-1150, email

383

By Coal Destination State  

Gasoline and Diesel Fuel Update (EIA)

Annual Coal Distribution Report 2010 Annual Coal Distribution Report 2010 U.S. Energy Information Administration | Annual Coal Distribution Report 2010 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 2010 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 7,906 821 1,242 - 9,969 Alabama Railroad 3,604 49 285 - 3,938 Alabama River 3,979 - - - 3,979 Alabama Truck 322 773 957 - 2,051 Colorado Total 2,113 - - - 2,113 Colorado Railroad 2,113 - - - 2,113 Illinois Total 336 - - - 336 Illinois River 336 - - - 336 Indiana Total 1,076

384

Quarterly Coal Report  

Gasoline and Diesel Fuel Update (EIA)

1Q) 1Q) Distribution Category UC-950 Quarterly Coal Report January-March 1999 Energy Information Administration Office of Coal, Nuclear, Electric and Alternate Fuels U.S. Department of Energy Washington, DC 20585 This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the Department of Energy. The information contained herein should not be construed as advocating or reflecting any policy position of the Department of Energy or any other organization. Contacts This publication was prepared by Paulette Young under the direction of B.D. Hong, Leader, Coal Infor- mation Team, Office of Coal, Nuclear, Electric and Alternate Fuels. Questions addressing the Appendix A, U.S. Coal Imports section should be directed

385

HIGH PRESSURE COAL COMBUSTON KINETICS PROJECT  

SciTech Connect

As part of the U.S. Department of Energy (DoE) initiative to improve the efficiency of coal-fired power plants and reduce the pollution generated by these facilities, DOE has funded the High-Pressure Coal Combustion Kinetics (HPCCK) Projects. A series of laboratory experiments were conducted on selected pulverized coals at elevated pressures with the specific goals to provide new data for pressurized coal combustion that will help extend to high pressure and validate models for burnout, pollutant formation, and generate samples of solid combustion products for analyses to fill crucial gaps in knowledge of char morphology and fly ash formation. Two series of high-pressure coal combustion experiments were performed using SRI's pressurized radiant coal flow reactor. The first series of tests characterized the near burner flame zone (NBFZ). Three coals were tested, two high volatile bituminous (Pittsburgh No.8 and Illinois No.6), and one sub-bituminous (Powder River Basin), at pressures of 1, 2, and 3 MPa (10, 20, and 30 atm). The second series of experiments, which covered high-pressure burnout (HPBO) conditions, utilized a range of substantially longer combustion residence times to produce char burnout levels from 50% to 100%. The same three coals were tested at 1, 2, and 3 MPa, as well as at 0.2 MPa. Tests were also conducted on Pittsburgh No.8 coal in CO2 entrainment gas at 0.2, 1, and 2 MPa to begin establishing a database of experiments relevant to carbon sequestration techniques. The HPBO test series included use of an impactor-type particle sampler to measure the particle size distribution of fly ash produced under complete burnout conditions. The collected data have been interpreted with the help of CFD and detailed kinetics simulation to extend and validate devolatilization, char combustion and pollutant model at elevated pressure. A global NOX production sub-model has been proposed. The submodel reproduces the performance of the detailed chemical reaction mechanism for the NBFZ tests.

Stefano Orsino

2005-03-30T23:59:59.000Z

386

Gasification in pulverized coal flames. Semi-annual progress report, September 1977--March 1978  

DOE Green Energy (OSTI)

This project concerns the production of power and synthesis gases from pulverized coal via suspension gasification. Cyclone and confined jet gasifier configurations with swirling flow are being investigated. Emphasis is on the final design and construction of the test facility and the two experimental reactors. Calibration procedures are presented, as are data reduction techniques and preliminary experimental results for methane and coal combustion tests.

Barnhart, J. S.; George, P. E.; Thomas, J. F.; Laurendeau, N. M.

1978-04-01T23:59:59.000Z

387

The optimization of the stocks within coal power stations using the dynamic programming method  

Science Conference Proceedings (OSTI)

The purpose of this paper is to devise an economic and mathematical model for forecasting and optimizing the need of coal, for determining the current stock size and optimizing the supply-storage costs within a coal-fired power plant. The conditions ... Keywords: continuous flow production, dynamic programming method, energetic resources, optimization of the safety stock, power plants, stock analysis

Rascolean Ilie; Isac Claudia; Dura Codruta

2009-12-01T23:59:59.000Z

388

Modelling and Simulation of the Pumping in a Former Mine Using Sequential Automata; Coal Mine of Rochebelle -St-Martin de Valgalgues, Cvennes,  

E-Print Network (OSTI)

Modelling and Simulation of the Pumping in a Former Mine Using Sequential Automata; Coal Mine obtained in former coal mine of Rochebelle - St- Martin de Valgalgues located Cévennes, South of France. Key words: Modelling mining aquifer, flow of pumping, former coal mine, discrete event modelling

389

Uncovering Coal's Secrets Through the University Coal Research Program |  

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

Uncovering Coal's Secrets Through the University Coal Research Uncovering Coal's Secrets Through the University Coal Research Program Uncovering Coal's Secrets Through the University Coal Research Program December 18, 2013 - 10:38am Addthis Uncovering Coal’s Secrets Through the University Coal Research Program The challenges confronting the environmentally sound use of our country's fossil energy resources are best addressed through collaborative research and development. That's why this approach, which stretches federal dollars, is at the heart of the Office of Fossil Energy's University Coal Research (UCR) Program. Managed by the National Energy Technology Laboratory (NETL), the UCR program funds university research to improve understanding of the chemical and physical properties of coal, one of our nation's most abundant

390

file://C:\Documents%20and%20Settings\ICR\My%20Documents\Coal\Di  

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

2 2 (Thousand Short Tons) Coal-Exporting State and Destination Metallurgical Steam Total Alabama 3,977 - 3,977 Argentina 225 - 225 Belgium 437 - 437 Brazil 1,468 - 1,468 Bulgaria 75 - 75 Egypt 363 - 363 Germany 71 - 71 Italy 61 - 61 Netherlands 219 - 219 Spain 415 - 415 Turkey 362 - 362 United Kingdom 282 - 282 Kentucky 1,404 - 1,404 Canada 433 - 433 Italy 227 - 227 Netherlands 468 - 468 United Kingdom 276 - 276 Pennsylvania 391 10,295 10,867 Belgium - 251 251 Brazil 187 - 189 Canada 50 8,548 8,766 France - 307 307 Germany 153 195 348 Ireland - 383 383 Jamaica - 87 87 Morocco - 134 134 Netherlands - 269 269 Norway - - 5 Peru - - 6 Portugal - 121 121 Utah - 917 917 Japan - 917 917 Virginia 2,787 - 2,787 Belgium 288 - 288 Brazil 792 - 792 Bulgaria 70 - 70 Canada 138 - 138

391

Novel Nanocrystalline Intermetallic Coatings for Metal Alloys in Coal-fired Environments  

Science Conference Proceedings (OSTI)

Intermetallic coatings (iron aluminide and nickel aluminide) were prepared by a novel reaction process. In the process, the aluminide coating is formed by an in-situ reaction between the aluminum powder fed through a plasma transferred arc (PTA) torch and the metal substrate (steel or Ni-base alloy). Subjected to the high temperature within an argon plasma zone, aluminum powder and the surface of the substrate melt and react to form the aluminide coatings. The prepared coatings were found to be aluminide phases that are porosity-free and metallurgically bonded to the substrate. The coatings also exhibit excellent high-temperature corrosion resistance under the conditions which simulate the steam-side and fire-side environments in coal-fired boilers. It is expected that the principle demonstrated in this process can be applied to the preparation of other intermetallic and alloy coatings.

Z. Zak Fang; H. Y. Sohn

2009-08-31T23:59:59.000Z

392

Fixed-bed gasification research using US coals. Volume 2. Gasification of Jetson bituminous coal  

Science Conference Proceedings (OSTI)

A single-staged, fixed-bed Wellman-Galusha gasifier coupled with a hot, raw gas combustion system and scrubber has been used to gasify numerous coals from throughout the United States. The gasification test program is organized as a cooperative effort by private industrial participants and governmental agencies. The consortium of participants is organized under the Mining and Industrial Fuel Gas (MIFGa) Group. This report describes the gasification testing of Jetson bituminous coal. This Western Kentucky coal was gasified during an initial 8-day and subsequent 5-day period. Material flows and compositions are reported along with material and energy balances. Operational experience is also described. 4 refs., 24 figs., 17 tabs.

Thimsen, D.; Maurer, R.E.; Pooler, A.R.; Pui, D.; Liu, B.; Kittelson, D.

1985-03-31T23:59:59.000Z

393

Consensus Coal Production Forecast for  

E-Print Network (OSTI)

Consensus Coal Production Forecast for West Virginia 2009-2030 Prepared for the West Virginia Summary 1 Recent Developments 2 Consensus Coal Production Forecast for West Virginia 10 Risks References 27 #12;W.Va. Consensus Coal Forecast Update 2009 iii List of Tables 1. W.Va. Coal Production

Mohaghegh, Shahab

394

Focus on Alaska's coal '80  

Science Conference Proceedings (OSTI)

Papers are presented under the broad headings of: Northern Alaskan coals; Beluga-Yentna coal field; resource development and utilization; transportation and economics; coal mining methods and regulations; and, federal and state policies concerning coal development. There is also a panel discussion, and luncheon and banquet speeches. 36 papers have been abstracted separately.

Rao, P.D.; Wolff, E.N. (eds.)

1981-01-01T23:59:59.000Z

395

Coal market momentum converts skeptics  

SciTech Connect

Tight supplies, soaring natural gas prices and an improving economy bode well for coal. Coal Age presents it 'Forecast 2006' a survey of 200 US coal industry executives. Questions asked included predicted production levels, attitudes, expenditure on coal mining, and rating of factors of importance. 7 figs.

Fiscor, S.

2006-01-15T23:59:59.000Z

396

Removal of Heavy Metals from Water by Fly Ash from Coal and Steel ...  

Science Conference Proceedings (OSTI)

In this work, iron dust from steelmaking process and coal fly ahs are used as an alternative adsorbent ... iNEMI Environmental Thrust; History, Challenges, & Opportunities ... Phosphorus Flow Analysis for Food Production and Consumption.

397

MS_Coal_Studyguide.indd  

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

COAL-OUR MOST ABUNDANT FUEL COAL-OUR MOST ABUNDANT FUEL America has more coal than any other fossil fuel resource. Th e United States also has more coal reserves than any other single country in the world. In fact, 1/4 of all the known coal in the world is in the United States. Th e United States has more energy in coal that can be mined than the rest of the world has in oil that can be pumped from the ground. Currently, coal is mined in 25 of the 50 states. Coal is used primarily in the United States to generate electricity. In fact, it is burned in power plants to produce nearly half of the electricity we use. A stove uses about half a ton of coal a year. A water heater uses about two tons of coal a year. And a refrigerator, that's another half-ton a year. Even though you

398

Advanced Coal Wind Hybrid: Economic Analysis  

E-Print Network (OSTI)

of Figures Figure ES-1. Advanced Coal Wind Hybrid: Basicviii Figure 1. Advanced-Coal Wind Hybrid: Basic29 Figure 9. Sensitivity to Coal

Phadke, Amol

2008-01-01T23:59:59.000Z

399

China's Coal: Demand, Constraints, and Externalities  

E-Print Network (OSTI)

of deploying advanced coal power in the Chinese context,”12 2.6. International coal prices and12 III. Chinese Coal

Aden, Nathaniel

2010-01-01T23:59:59.000Z

400

Coal News and Markets - Energy Information Administration  

U.S. Energy Information Administration (EIA)

"Coal News and Markets Report" summarizes spot coal prices by coal commodity regions (i.e., Central Appalachia (CAPP), Northern Appalachia (NAPP), Illinois Basin (ILB ...

Note: This page contains sample records for the topic "metallurgical coal flows" 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

EIA Energy Kids - Coal - Energy Information Administration  

U.S. Energy Information Administration (EIA)

Coal Basics Coal takes millions of years to create. Coal is a combustible black or brownish-black sedimentary rock composed mostly of carbon and hydrocarbons.

402

DOE Hydrogen Analysis Repository: Coal Distribution Constraints  

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

Coal Distribution Constraints Project Summary Full Title: Future Impacts of Coal Distribution Constraints on Coal Cost Project ID: 199 Principal Investigator: David McCollum...

403

WEAR RESISTANT ALLOYS FOR COAL HANDLING EQUIPMENT  

E-Print Network (OSTI)

Proceedings of the Conference on Coal Feeding Systems, HeldWear Resistant Alloys for Coal Handling Equipment", proposalWear Resistant Alloys for Coal Handling Equi pment". The

Bhat, M.S.

2011-01-01T23:59:59.000Z

404

Quarterly Coal Report April - June 2011  

U.S. Energy Information Administration (EIA)

The Quarterly Coal Report (QCR) presents U.S. coal production, exports, imports, receipts, prices, consumption, coal quality, and stocks data.

405

China's Coal: Demand, Constraints, and Externalities  

E-Print Network (OSTI)

12 2.6. International coal prices and18 International coal prices and trade In parallel with thesocial stability. High coal prices and domestic shortages

Aden, Nathaniel

2010-01-01T23:59:59.000Z

406

Advances in pulverized coal combustion  

Science Conference Proceedings (OSTI)

A combustion system has been developed to operate cost effectively in the difficult regulatory and economic climate of the 1980's. The system is designed to reduce auxiliary fuel oil comsumption by at least 30% while meeting all relevant emissions limits. This is achieved with the fewest components consistent with practical reliable design criteria. The Controlled Flow Split/Flame low NO/sub x/ burner, MBF pulverizer and Two-Stage ignition system are integrated into a mutually supporting system which is applicable to both new steam generators and, on a retrofit basis, to existing units. In the future, a pulverized coal ignition system will be available to eliminate fuel oil use within the boiler.

Vatsky, J.

1981-01-01T23:59:59.000Z

407

By Coal Destination State  

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

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2011 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 1st Quarter 2011 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 1,040 18 80 - 1,138 Alabama River 668 - - - 668 Alabama Truck 52 164 223 - 438 Alabama Total 1,760 181 303 - 2,244 Colorado Railroad 600 - - - 600 Illinois River 203 - 13 - 217 Indiana River 180 - - - 180 Kentucky Railroad 465 - 10 - 475 Kentucky (West) Railroad 465 - 10 - 475 Utah Railroad 18 - - -

408

Coal combustion products (CCPs  

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

combustion products (CCPs) combustion products (CCPs) are solid materials produced when coal is burned to generate electricity. Since coal provides the largest segment of U.S. electricity generation (45 percent in 2010), finding a sustainable solution for CCPs is an important environmental challenge. When properly managed, CCPs offer society environmental and economic benefits without harm to public health and safety. Research supported by the U.S. Department of Energy's (DOE) Office of Fossil Energy (FE) has made an important contribution in this regard. Fossil Energy Research Benefits Coal Combustion Products Fossil Energy Research Benefits

409

By Coal Destination State  

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

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 4th Quarter 2011 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 4th Quarter 2011 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,486 155 328 - 1,970 Alabama Railroad 1,020 - 75 - 1,095 Alabama River 417 - - - 417 Alabama Truck 49 155 253 - 458 Colorado Total 195 - - - 195 Colorado Railroad 195 - - - 195 Illinois Total 127 - 18 - 145 Illinois Railroad 20 - - - 20 Illinois River 107 - 18 - 125 Indiana Total

410

By Coal Origin State  

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

2 2 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2012 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 1st Quarter 2012 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,407 184 231 - 1,822 Alabama Railroad 801 9 49 - 859 Alabama River 519 - - - 519 Alabama Truck 87 175 182 - 444 Georgia Total s - s - s Georgia Truck s - s - s Indiana Total - 98 - - 98 Indiana Railroad - 98 - - 98 Kentucky Total - - 12 - 12 Kentucky Truck - - 12 - 12 Ohio Total - 30 - - 30 Ohio

411

By Coal Destination State  

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

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 3rd Quarter 2011 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 3rd Quarter 2011 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,942 160 335 - 2,437 Alabama Railroad 1,149 - 57 - 1,206 Alabama River 741 - - - 741 Alabama Truck 52 160 278 - 490 Colorado Total 621 2 - - 623 Colorado Railroad 621 2 - - 623 Illinois Total 113 - 11 - 123 Illinois River 113 - 11 - 123 Indiana Total 265 - - - 265 Indiana Railroad

412

By Coal Origin State  

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

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2011 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 2nd Quarter 2011 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,896 182 327 - 2,405 Alabama Railroad 1,192 2 74 - 1,268 Alabama River 655 - - - 655 Alabama Truck 50 180 253 - 482 Georgia Total s - - - s Georgia Truck s - - - s Indiana Total - 72 - - 72 Indiana Railroad - 72 - - 72 Tennessee Total - - 7 - 7 Tennessee Truck - - 7 - 7 Origin State Total 1,896

413

By Coal Destination State  

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

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2010 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 2nd Quarter 2010 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 914 12 66 - 992 Alabama River 949 - - - 949 Alabama Truck 78 189 237 - 504 Alabama Total 1,941 201 303 - 2,445 Colorado Railroad 575 - - - 575 Illinois River 99 - - - 99 Indiana River 241 - - - 241 Kentucky Railroad 827 - 12 - 839 Kentucky (East) Railroad 76 - - - 76 Kentucky (West) Railroad

414

By Coal Destination State  

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

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 3rd Quarter 2010 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 3rd Quarter 2010 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 839 11 83 - 933 Alabama River 1,347 - - - 1,347 Alabama Truck 118 216 236 - 571 Alabama Total 2,304 227 320 - 2,850 Colorado Railroad 514 - - - 514 Illinois River 99 - - - 99 Indiana River 172 - - - 172 Kentucky Railroad 635 - 11 - 647 Kentucky (East) Railroad 45 - - - 45 Kentucky (West)

415

By Coal Destination State  

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

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 4th Quarter 2010 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 4th Quarter 2010 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 944 16 77 - 1,037 Alabama River 781 - - - 781 Alabama Truck 77 224 220 - 521 Alabama Total 1,802 240 298 - 2,340 Colorado Railroad 385 - - - 385 Illinois River 15 - - - 15 Indiana Railroad 1 - - - 1 Indiana River 350 - - - 350 Indiana Total 351 - - - 351 Kentucky Railroad 682 - 2 - 685 Kentucky (East)

416

Quarterly Coal Report  

Gasoline and Diesel Fuel Update (EIA)

June 2010 DOE/EIA-0121 (2010/01Q) June 2010 DOE/EIA-0121 (2010/01Q) Revised: July 2012 Quarterly Coal Report January - March 2010 June 2010 U.S. Energy Information Administration Office of Oil, Gas, and Coal Supply Statistics U.S. Department of Energy Washington, DC 20585 _____________________________________________________________________________ This report is available on the Web at: http://www.eia.gov/coal/production/quarterly/ _____________________________________________ This report was prepared by the U.S. Energy Information Administration (EIA), the statistical and analytical agency within the U.S. Department of Energy. By law, EIA's data, analyses, and forecasts are independent of

417

By Coal Destination State  

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

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2010 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 1st Quarter 2010 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 907 10 59 - 975 Alabama River 903 - - - 903 Alabama Truck 150 144 253 - 546 Alabama Total 1,960 153 311 - 2,424 Colorado Railroad 640 - - - 640 Illinois River 123 - - - 123 Indiana River 312 - - - 312 Kentucky Railroad 622 - 36 - 658 Kentucky (East) Railroad 96 - 36 - 132 Kentucky (West)

418

By Coal Destination State  

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

1 1 U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2011 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 2nd Quarter 2011 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,896 182 327 - 2,405 Alabama Railroad 1,192 2 74 - 1,268 Alabama River 655 - - - 655 Alabama Truck 50 180 253 - 482 Colorado Total 468 - - - 468 Colorado Railroad 468 - - - 468 Illinois Total 90 - 26 - 116 Illinois River 90 - 26 - 116 Indiana Total 181 - - - 181 Indiana River 181 -

419

By Coal Destination State  

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

2 2 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2012 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal distribution, by destination State, 1st Quarter 2012 Destination: Alabama (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Total 1,407 184 231 - 1,822 Alabama Railroad 801 9 49 - 859 Alabama River 519 - - - 519 Alabama Truck 87 175 182 - 444 Colorado Total 82 - - - 82 Colorado Railroad 82 - - - 82 Illinois Total 149 - 14 - 163 Illinois Railroad 44 - - - 44 Illinois River 105 - 14 - 119 Indiana Total 99 - - - 99

420

Quarterly Coal Report  

Gasoline and Diesel Fuel Update (EIA)

1Q) 1Q) Quarterly Coal Report January - March 2008 July 2008 Energy Information Administration Office of Coal, Nuclear, Electric, and Alternate Fuels U.S. Department of Energy Washington, DC 20585 _____________________________________________________________________________ This report is available on the Web at: http://www.eia.doe.gov/cneaf/coal/quarterly/qcr.pdf _____________________________________________ This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the U.S. Department of Energy. The information contained herein should be not be construed as advocating or reflecting any policy position of the U.S. Department of Energy or any other organization.

Note: This page contains sample records for the topic "metallurgical coal flows" 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

Quarterly Coal Report  

Gasoline and Diesel Fuel Update (EIA)

2Q) 2Q) Quarterly Coal Report April - June 2009 September 2009 Energy Information Administration Office of Coal, Nuclear, Electric, and Alternate Fuels U.S. Department of Energy Washington, DC 20585 _____________________________________________________________________________ This report is available on the Web at: http://www.eia.doe.gov/cneaf/coal/quarterly/qcr.pdf _____________________________________________ This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the U.S. Department of Energy. The information contained herein should be not be construed as advocating or reflecting any policy position of the U.S. Department of Energy or any other organization.

422

Quarterly Coal Report  

Gasoline and Diesel Fuel Update (EIA)

7/01Q) 7/01Q) Quarterly Coal Report January - March 2007 June 2007 Energy Information Administration Office of Coal, Nuclear, Electric, and Alternate Fuels U.S. Department of Energy Washington, DC 20585 _____________________________________________________________________________ This report is available on the Web at: http://www.eia.doe.gov/cneaf/coal/quarterly/qcr.pdf _____________________________________________ This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the U.S. Department of Energy. The information contained herein should be not be construed as advocating or reflecting any policy position of the U.S. Department of Energy or any other organization.

423

By Coal Origin State  

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

0 0 U.S. Energy Information Administration | Quarterly Coal Distribution Report 2nd Quarter 2010 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal distribution, by origin State, 2nd Quarter 2010 Origin: Alabama (thousand short tons) Coal Destination State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total Alabama Railroad 914 12 66 - 992 Alabama River 949 - - - 949 Alabama Truck 78 189 237 - 504 Alabama Total 1,941 201 303 - 2,445 Georgia Railroad 23 - - - 23 Georgia Truck s - - - s Georgia Total 23 - - - 23 Indiana Railroad - 115 - - 115 Indiana Truck - 71 - - 71 Indiana Total - 186 - - 186 Tennessee Railroad - - 1 - 1 Tennessee Truck

424

Quarterly Coal Report  

Gasoline and Diesel Fuel Update (EIA)

3Q) 3Q) Quarterly Coal Report July - September 2008 December 2008 Energy Information Administration Office of Coal, Nuclear, Electric, and Alternate Fuels U.S. Department of Energy Washington, DC 20585 _____________________________________________________________________________ This report is available on the Web at: http://www.eia.doe.gov/cneaf/coal/quarterly/qcr.pdf _____________________________________________ This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the U.S. Department of Energy. The information contained herein should be not be construed as advocating or reflecting any policy position of the U.S. Department of Energy or any other organization.

425

Quarterly Coal Report  

Gasoline and Diesel Fuel Update (EIA)

2Q) 2Q) Quarterly Coal Report April - June 2008 September 2008 Energy Information Administration Office of Coal, Nuclear, Electric, and Alternate Fuels U.S. Department of Energy Washington, DC 20585 _____________________________________________________________________________ This report is available on the Web at: http://www.eia.doe.gov/cneaf/coal/quarterly/qcr.pdf _____________________________________________ This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the U.S. Department of Energy. The information contained herein should be not be construed as advocating or reflecting any policy position of the U.S. Department of Energy or any other organization.

426

Quarterly Coal Report  

Gasoline and Diesel Fuel Update (EIA)

8/04Q) 8/04Q) Quarterly Coal Report October - December 2008 March 2009 Energy Information Administration Office of Coal, Nuclear, Electric, and Alternate Fuels U.S. Department of Energy Washington, DC 20585 _____________________________________________________________________________ This report is available on the Web at: http://www.eia.doe.gov/cneaf/coal/quarterly/qcr.pdf _____________________________________________ This report was prepared by the Energy Information Administration, the independent statistical and analytical agency within the U.S. Department of Energy. The information contained herein should be not be construed as advocating or reflecting any policy position of the U.S. Department of Energy or any other organization.

427

A commitment to coal  

SciTech Connect

Quin Shea explores the need for power generated with coal and the advanced technologies that will generate that power more efficiently and cleanly in the future. The article considers the air and waste challenges of using coal, including progress toward reducing emissions of SO{sub 2}, NOx, and mercury; efforts to address CO{sub 2}, including voluntary programs like the Climate Challenge, Power Partners, and the Asia-Pacific Partnership on Clean Development and Climate; and the regulation and beneficial use of coal-combustion byproducts (e.g., fly ash, bottom ash, flue gas desulfurization materials, boiler slag). 17 refs.

Shea, Q. [Edison Electric Institute, Washington, DC (United States)

2006-07-15T23:59:59.000Z

428

Underground gasification of coal  

DOE Patents (OSTI)

There is disclosed a method for the gasification of coal in situ which comprises drilling at least one well or borehole from the earth's surface so that the well or borehole enters the coalbed or seam horizontally and intersects the coalbed in a direction normal to its major natural fracture system, initiating burning of the coal with the introduction of a combustion-supporting gas such as air to convert the coal in situ to a heating gas of relatively high calorific value and recovering the gas. In a further embodiment the recovered gas may be used to drive one or more generators for the production of electricity.

Pasini, III, Joseph (Morgantown, WV); Overbey, Jr., William K. (Morgantown, WV); Komar, Charles A. (Uniontown, PA)

1976-01-20T23:59:59.000Z

429

Coal liquefaction process  

DOE Patents (OSTI)

A process is described for the liquefaction of coal wherein raw feed coal is dissolved in recycle solvent with a slurry containing recycle coal minerals in the presence of added hydrogen at elevated temperature and pressure. The highest boiling distillable dissolved liquid fraction is obtained from a vacuum distillation zone and is entirely recycled to extinction. Lower boiling distillable dissolved liquid is removed in vapor phase from the dissolver zone and passed without purification and essentially without reduction in pressure to a catalytic hydrogenation zone where it is converted to an essentially colorless liquid product boiling in the transportation fuel range. 1 fig.

Wright, C.H.

1986-02-11T23:59:59.000Z

430

Aqueous coal slurry  

DOE Patents (OSTI)

A principal object of the invention is the provision of an aqueous coal slurry containing a dispersant, which is of low-cost and which contains very low or no levels of sodium, potassium, sulfur and other contaminants. In connection with the foregoing object, it is an object of the invention to provide an aqueous slurry containing coal and dextrin as a dispersant and to provide a method of preparing an aqueous coal slurry which includes the step of adding an effective amount of dextrin as a dispersant. The invention consists of certain novel features and a combination of parts hereinafter fully described, and particularly pointed out in the appended claims. 6 tabs.

Berggren, M.H.; Smit, F.J.; Swanson, W.W.

1989-10-30T23:59:59.000Z

431

Coal liquefaction process  

DOE Green Energy (OSTI)

A process for the liquefaction of coal wherein raw feed coal is dissolved in recycle solvent with a slurry containing recycle coal minerals in the presence of added hydrogen at elevated temperature and pressure. The highest boiling distillable dissolved liquid fraction is obtained from a vacuum distillation zone and is entirely recycled to extinction. Lower boiling distillable dissolved liquid is removed in vapor phase from the dissolver zone and passed without purification and essentially without reduction in pressure to a catalytic hydrogenation zone where it is converted to an essentially colorless liquid product boiling in the transportation fuel range.

Wright, Charles H. (Overland Park, KS)

1986-01-01T23:59:59.000Z

432

Improving the scheme for final comminution of the coal charge  

Science Conference Proceedings (OSTI)

Proceeding from laboratory and pilot plant tests of the screening of fine classes of coal under the effect of gravitational forces on stationary grates, and also from the experience of the Krivoi Rog and Kommunarsk Coke Works, the coal preparation division of OKhMK (Orsk-Khalilovo Intergrated Iron and Steel Works) adopted an industrial scheme of comminution of the coal before coking, screening out the fine classes ahead of the hammer crushers. In the bottom of the feeder chute a stamped screen was installed (dimensions 2100 x 1600 x 5 mm with apertures of 40 x 100 mm) with the large side perpendicular to the flow of coal. The distance between the apertures on the small side of the screen was 20 mm, on the large side 15 mm; the inclination was 60/sup 0/. The overscreen product enters the crusher, and the underscreen product is injected into the crushed charge without comminution.

Antonov, A.V.; Zagoruiko, S.I.; Vorob'ev, S.E.; Kress, L.A.; Stepura, P.G.

1983-01-01T23:59:59.000Z

433

Metallurgical Evaluation of Grit Blasted Versus Non-Grit Blasted Iridium Alloy Clad Vent Set Cup Surfaces  

SciTech Connect

Metallurgical evaluations were conducted to determine what, if any, grain size differences exist between grit blasted and non-grit blasted DOP-26 iridium alloy cup surfaces and if grit blasting imparts sufficient compressive cold work to induce abnormal grain growth during subsequent temperature exposures. Metallographic measurements indicated that grit blasting cold worked the outside cup surface to a depth of approximately 19 {micro}m. Subsequent processing through the air burn-off (635 C/4h) and vacuum outgassing (1250 C/1h) operations was found to uniformly recrystallize the cold worked surface to produce grains with an average diameter of approximately 8.5 {micro}m (American Society for Testing and Materials (ASTM) grain size number 11). Follow-on heat treatments at 1375 C, 1500 C, and 1900 C for durations ranging from 1 min to 70 h yielded uniform grain sizes and no abnormal grain growth from grit blasting. Abnormal grain growth was noted at the 1500 C and 1900 C heat treatments in areas of cold work from excessive clamping during sample preparation.

Ulrich, George B [ORNL; Longmire, Hu Foster [ORNL

2010-02-01T23:59:59.000Z

434

Neutron and x-ray scattering studies of the metallurgical condition and residual stresses in Weldalite welds  

DOE Green Energy (OSTI)

Weldalite is a lithium-containing aluminum alloy which is being considered for aerospace applications because its favorable strength-to-weight ratio. Successful welding of this alloy depends on the control of the metallurgical condition and residual stresses in the heat affected zone. Neutron and x-ray scattering methods of residual stress measurement were applied to plasma arc welds made in aluminum-lithium alloy test panels as part of an evaluation of materials for use in welded structures. In the course of these studies discrepancies between x-ray and neutron results from the heat affected zone (HAZ) of the weld were found. Texture changes and recovery from the cold work, indicated in peak widths, were found in the HAZ as well. The consideration of x-ray and neutron results leads to the conclusion that there is a change in solute composition which modifies the d-spacings in the HAZ which affects the neutron diffraction determination of residual stresses. The composition changes give the appearance of significant compressive strains in the HAZ. This effect and sharp gradients in the texture give severe anomalies in the neutron measurement of residual stress. The use of combined x-ray and neutron techniques and the solution to the minimizing of the neutron diffraction anomalies are discussed.

Spooner, S. [Oak Ridge National Lab., TN (United States); Pardue, E.B.S. [Technology for Energy Corp., Knoxville, TN (United States)

1995-12-31T23:59:59.000Z

435

Coal Distribution Database, 2006  

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

7 7 December 2008 2007 Changes in Coal Distribution Table Format and Data Sources The changes in the coal distribution data sources made in 2006 are carried over to the 2007 tables. As in 2006, EIA used data from the EIA-3 survey to distribute synfuel to the electric generation sector on a state level, aggregated with all of the other coal (such as bituminous, subbituminous, and lignite coal) sent to electric generating plants. EIA supplemented the EIA-3 data with previously collected information to determine the mode of transportation from the synfuel plant to the electric generating consumer, which was not reported on the EIA-3A survey form. Although not contained in the EIA-6A master file, this information has been documented in an ancillary spreadsheet in the EIA

436

Coal Utilization Science Program  

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

Coal Utilization SCienCe Program Coal Utilization SCienCe Program Description The Coal Utilization Science (CUS) Program sponsors research and development (R&D) in fundamental science and technology areas that have the potential to result in major improvements in the efficiency, reliability, and environmental performance of advanced power generation systems using coal, the Nation's most abundant fossil fuel resource. The challenge for these systems is to produce power in an efficient and environmentally benign manner while remaining cost effective for power providers as well as consumers. The CUS Program is carried out by the National Energy Technology Laboratory (NETL) under the Office of Fossil Energy (FE) of the U.S. Department of Energy (DOE). The program supports DOE's Strategic Plan to:

437

Rail Coal Transportation Rates  

Gasoline and Diesel Fuel Update (EIA)

Methodology Methodology EIA uses the confidential version of the STB Waybill data, which includes actual revenue for shipments that originate and terminate at specific locations. The STB Waybill data are a sample of all rail shipments. EIA's 2011 report describes the sampling procedure. EIA aggregates the confidential STB data to three different levels: national, coal-producing basin to state, and state to state. EIA applies STB withholding rules to the aggregated data to identify records that must be suppressed to protect business-sensitive data. Also, EIA adds additional location fields to the STB data, identifying the mine from which the coal originates, the power plant that receives the coal, and, in some cases, an intermediate delivery location where coal is terminated by the initial carrier but then

438

Aqueous coal slurry  

DOE Patents (OSTI)

An aqueous slurry containing coal and dextrin as a dispersant. The slurry, in addition to containing dextrin, may contain a conventional dispersant or, alternatively, a pH controlling reagent.

Berggren, Mark H. (Golden, CO); Smit, Francis J. (Arvada, CO); Swanson, Wilbur W. (Golden, CO)

1993-01-01T23:59:59.000Z

439

Clean Coal Technology (Indiana)  

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

A public utility may not use clean coal technology at a new or existing electric generating facility without first applying for and obtaining from the Utility Regulatory Commission a certificate...

440

Coal markets squeeze producers  

SciTech Connect

Supply/demand fundamentals seem poised to keep prices of competing fossil fuels high, which could cushion coal prices, but increased mining and transportation costs may squeeze producer profits. Are markets ready for more volatility?

Ryan, M.

2005-12-01T23:59:59.000Z

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


441

Proximate analysis of coal  

Science Conference Proceedings (OSTI)

This lab experiment illustrates the use of thermogravimetric analysis (TGA) to perform proximate analysis on a series of coal samples of different rank. Peat and coke are also examined. A total of four exercises are described. These are dry exercises as students interpret previously recorded scans. The weight percent moisture, volatile matter, fixed carbon, and ash content are determined for each sample and comparisons are made. Proximate analysis is performed on a coal sample from a local electric utility. From the weight percent sulfur found in the coal (determined by a separate procedure the Eschka method) and the ash content, students calculate the quantity of sulfur dioxide emissions and ash produced annually by a large coal-fired electric power plant.

Donahue, C.J.; Rais, E.A. [University of Michigan, Dearborn, MI (USA)

2009-02-15T23:59:59.000Z

442

Coal liquefaction process  

DOE Patents (OSTI)

This invention relates to an improved process for the production of liquid carbonaceous fuels and solvents from carbonaceous solid fuels, especially coal. The claimed improved process includes the hydrocracking of the light SRC mixed with a suitable hydrocracker solvent. The recycle of the resulting hydrocracked product, after separation and distillation, is used to produce a solvent for the hydrocracking of the light solvent refined coal.

Skinner, Ronald W. (Allentown, PA); Tao, John C. (Perkiomenville, PA); Znaimer, Samuel (Vancouver, CA)

1985-01-01T23:59:59.000Z

443

Coal Liquefaction desulfurization process  

DOE Patents (OSTI)

In a solvent refined coal liquefaction process, more effective desulfurization of the high boiling point components is effected by first stripping the solvent-coal reacted slurry of lower boiling point components, particularly including hydrogen sulfide and low molecular weight sulfur compounds, and then reacting the slurry with a solid sulfur getter material, such as iron. The sulfur getter compound, with reacted sulfur included, is then removed with other solids in the slurry.

Givens, Edwin N. (Bethlehem, PA)

1983-01-01T23:59:59.000Z

444

International Coal Market Analysis  

Science Conference Proceedings (OSTI)

As this report is being finalized in November 2007, international steam coal freight-on-board (FOB) prices are at levels not seen since 1980-1982, shipping rates are at unprecedented high levels, and currency fluctuations are altering the degree to which major individual countries are impacted. This report systematically examines the history of the international coal trade, the major exporting and importing countries, and the drivers behind how trade functions. In addition, the report examines in depth t...

2007-12-14T23:59:59.000Z

445

Coal liquefaction process  

DOE Patents (OSTI)

An improved coal liquefaction process is provided which enables conversion of a coal-oil slurry to a synthetic crude refinable to produce larger yields of gasoline and diesel oil. The process is characterized by a two-step operation applied to the slurry prior to catalytic desulfurization and hydrogenation in which the slurry undergoes partial hydrogenation to crack and hydrogenate asphaltenes and the partially hydrogenated slurry is filtered to remove minerals prior to subsequent catalytic hydrogenation.

Karr, Jr., Clarence (Morgantown, WV)

1977-04-19T23:59:59.000Z

446

American coal imports 2015  

SciTech Connect

As 2007 ends, the US coal industry passes two major milestones - the ending of the Synfuel tax break, affecting over 100M st annually, and the imposition of tighter and much more expensive safety measures, particularly in deep mines. Both of these issues, arriving at a time of wretched steam coal price levels, promise to result in a major shake up in the Central Appalachian mining sector. The report utilizes a microeconomic regional approach to determine whether either of these two schools of thought have any validity. Transport, infrastructure, competing fuels and regional issues are examined in detail and this forecasts estimates coal demand and imports on a region by region basis for the years 2010 and 2015. Some of the major highlights of the forecast are: Import growth will be driven by steam coal demand in the eastern and southern US; Transport will continue to be the key driver - we believe that inland rail rates will deter imports from being railed far inland and that the great majority of imports will be delivered directly by vessel, barge or truck to end users; Colombian coal will be the overwhelmingly dominant supply source and possesses a costs structure to enable it to compete with US-produced coal in any market conditions; Most of the growth will come from existing power plants - increasing capacity utilization at existing import facilities and other plants making investments to add imports to the supply portfolio - the growth is not dependent upon a lot of new coal fired capacity being built. Contents of the report are: Key US market dynamics; International supply dynamics; Structure of the US coal import market; and Geographic analysis.

Frank Kolojeski [TransGlobal Ventures Corp. (United States)

2007-09-15T23:59:59.000Z

447

Method for coal liquefaction  

DOE Patents (OSTI)

A process is disclosed for coal liquefaction in which minute particles of coal in intimate contact with a hydrogenation catalyst and hydrogen arc reacted for a very short time at a temperature in excess of 400 C at a pressure of at least 1500 psi to yield over 50% liquids with a liquid to gaseous hydrocarbon ratio in excess of 8:1. 1 figures.

Wiser, W.H.; Oblad, A.G.; Shabtai, J.S.

1994-05-03T23:59:59.000Z

448

Weekly Coal Production by State  

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

Weekly Coal Production Weekly Coal Production Data for week ended: December 14, 2013 | Release date: December 19, 2013 | Next release date: December 30, 2013 For the week ended December 14, 2013: U.S. coal production totaled approximately 18.9 million short tons (mmst) This production estimate is 3.1% higher than last week's estimate and 2.9% lower than the production estimate in the comparable week in 2012 Coal production east of the Mississippi River totaled 8.2 mmst Coal production west of the Mississippi River totaled 10.8 mmst U.S. year-to-date coal production totaled 957.1 mmst, 1.9% lower than the comparable year-to-date coal production in 2012 EIA revises its weekly estimates of state-level coal production using Mine Safety and Health Administration (MSHA) quarterly coal production data.

449

Powdered coal air dispersion nozzle  

SciTech Connect

An improved coal/air dispersion nozzle introduces fuel into the combustion chamber of a gas turbine engine as a finely atomized, dispersed spray for a uniform combustion. The nozzle has an inlet that receives finely powdered coal from a coal transport or coal/air fluidizer system and a scroll swirl generator is included within the nozzle to swirl a fluidized coal/air mixture supplied to the inlet of the nozzle. The scroll is in the form of a thin, flat metal sheet insert, twisted along its length, and configured to prevent build-up of coal particles within the nozzle prior to ejection from its outlet. Airblast air jets are included along the length of the nozzle body to assist in the discharge of the fluidized coal from the nozzle outlet and an angular pintle tip overlies the outlet to redirect coal/air mixture through a desired fluidized coal spray angle.

Kosek, T.P.; Steinhilper, E.A.

1981-10-27T23:59:59.000Z

450

Flow Measurement and Instrumentation 24 (2012) 4349 Contents lists available at SciVerse ScienceDirect  

E-Print Network (OSTI)

blends is widely seen in coal and biomass fired power stations. In 1979, the Bayfront plant in the US.elsevier.com/locate/flowmeasinst Concentration measurement of biomass/coal/air three-phase flow by integrating electrostatic and capacitive describes an integrated instrumentation system for the volumetric-concentration measure- ment of biomass/coal

Yan, Yong

451

Advanced Coal Wind Hybrid: Economic Analysis  

E-Print Network (OSTI)

2 Syngas (H2 + CO + CO2) Coal Gasifier coal Fuel Production/2 Syngas (H2 + CO + CO2) Coal Gasifier coal Fuel Production/this operational mode, the gasifiers and other parts of the

Phadke, Amol

2008-01-01T23:59:59.000Z

452

China's Coal: Demand, Constraints, and Externalities  

E-Print Network (OSTI)

world’s largest CBM (coal-bed methane) power plant. In orderunder the China United Coal-bed Methane Corporation (CUCBM)quandary. 3.3.4. Coal-bed and coal-mine methane Effective

Aden, Nathaniel

2010-01-01T23:59:59.000Z

453

EIA projections of coal supply and demand  

SciTech Connect

Contents of this report include: EIA projections of coal supply and demand which covers forecasted coal supply and transportation, forecasted coal demand by consuming sector, and forecasted coal demand by the electric utility sector; and policy discussion.

Klein, D.E.

1989-10-23T23:59:59.000Z

454

COMPCOAL{trademark}: A profitable process for production of a stable high-Btu fuel from Powder River Basin coal  

SciTech Connect

Western Research Institute (WRI) is developing a process to produce a stable, clean-burning, premium fuel from Powder River Basin (PRB) coal and other low-rank coals. This process is designed to overcome the problems of spontaneous combustion, dust formation, and readsorption of moisture that are experienced with PRB coal and with processed PRB coal. This process, called COMPCOAL{trademark}, results in high-Btu product that is intended for burning in boilers designed for midwestern coals or for blending with other coals. In the COMPCOAL process, sized coal is dried to zero moisture content and additional oxygen is removed from the coal by partial decarboxylation as the coal is contacted by a stream of hot fluidizing gas in the dryer. The hot, dried coal particles flow into the pyrolyzer where they are contacted by a very small flow of air. The oxygen in the air reacts with active sites on the surface of the coal particles causing the temperature of the coal to be raised to about 700{degrees}F (371{degrees}C) and oxidizing the most reactive sites on the particles. This ``instant aging`` contributes to the stability of the product while only reducing the heating value of the product by about 50 Btu/lb. Less than 1 scf of air per pound of dried coal is used to avoid removing any of the condensible liquid or vapors from the coal particles. The pyrolyzed coal particles are mixed with fines from the dryer cyclone and dust filter and the resulting mixture at about 600{degrees}F (316{degrees}C) is fed into a briquettor. Briquettes are cooled to about 250{degrees}F (121{degrees}C) by contact with a mist of water in a gas-tight mixing conveyor. The cooled briquettes are transferred to a storage bin where they are accumulated for shipment.

Smith, V.E.; Merriam, N.W.

1994-10-01T23:59:59.000Z

455

A Pilot-plant Scale Test of Coal-based Rotary Kiln Direct Reduction ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, 2014 TMS Annual Meeting & Exhibition. Symposium , 5th International Symposium on High Temperature Metallurgical Processing.

456

Simulation of a moving bed gasifier for a western coal  

Science Conference Proceedings (OSTI)

This paper describes an adiabatic steady state plug flow model for a moving bed coal gasifier with gas-solid heat transfer. The model considers 17 solid stream components, 10 gas stream components and 17 reactions. The kinetic and thermodynamic parameters ...

R. Stillman

1979-05-01T23:59:59.000Z

457

Illinois Coal Development Program (Illinois) | Department of...  

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

Illinois Coal Development Program (Illinois) Illinois Coal Development Program (Illinois) < Back Eligibility Commercial Construction Developer Industrial Program Info State...

458

Coal News and Markets - Energy Information Administration  

U.S. Energy Information Administration (EIA)

Coal Prices and Earnings (updated October 7, 2005) (Today's updates are limited to spot coal prices in the graph below)

459

Office of the Chief Financial Officer Annual Report 2010  

E-Print Network (OSTI)

Oil Technology Contractual Services And Supplies Advanced Metallurgical Processes Clean Coal Power Initiative Unconventional

Fernandez, Jeffrey

2011-01-01T23:59:59.000Z

460

Humic acid complexation of basic and neutral polycyclic aromatic compounds  

E-Print Network (OSTI)

, metallurgical processes, and some coal, oil shale, and tar sand conversion systems. These com- pounds exhibit

Chorover, Jon

Note: This page contains sample records for the topic "metallurgical coal flows" 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.


461

Method of extracting coal from a coal refuse pile  

DOE Patents (OSTI)

A method of extracting coal from a coal refuse pile comprises soaking the coal refuse pile with an aqueous alkali solution and distributing an oxygen-containing gas throughout the coal refuse pile for a time period sufficient to effect oxidation of coal contained in the coal refuse pile. The method further comprises leaching the coal refuse pile with an aqueous alkali solution to solubilize and extract the oxidized coal as alkali salts of humic acids and collecting the resulting solution containing the alkali salts of humic acids. Calcium hydroxide may be added to the solution of alkali salts of humic acid to form precipitated humates useable as a low-ash, low-sulfur solid fuel.

Yavorsky, Paul M. (Monongahela, PA)

1991-01-01T23:59:59.000Z

462

NETL: Coal & Coal Biomass to Liquids - Hydrogen and Clean Fuels...  

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

Strategies Central Hydrogen Production Coal Supply Regions CLICK ON IMAGE TO SEE LARGER VIEW Coal is a plentiful domestic resource, and is available in several major regions of the...

463

NETL: Coal & Coal Biomass to Liquids - Hydrogen and Clean Fuels...  

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

of hydrogen and nitrogen. CLICK ON IMAGE TO SEE LARGER VIEW Hydrogen is produced from coal in a process that is similar to SMR but more complex because coal is not a single...

464

NETL: Coal and Coal/Biomass to Liquids - Solicitations  

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

by Gasification. Small-Scale Coal-biomass to Liquids Production Using Highly Selective Fischer-Tropsch Synthesis; FE0010231 Small-Scale Pilot Plant for the Gasification of Coal...

465

Alaska coal gasification feasibility studies - Healy coal-to-liquids plant  

SciTech Connect

The Alaska Coal Gasification Feasibility Study entailed a two-phase analysis of the prospects for greater use of Alaska's abundant coal resources in industrial applications. Phase 1, Beluga Coal Gasification Feasibility Study (Report DOE/NETL 2006/1248) assessed the feasibility of using gasification technology to convert the Agrium fertilizer plant in Nikiski, Alaska, from natural gas to coal feedstock. The Phase 1 analysis evaluated coals from the Beluga field near Anchorage and from the Usibelli Coal Mine near Healy, both of which are low in sulfur and high in moisture. This study expands the results of Phase 1 by evaluating a similar sized gasification facility at the Usibelli Coal mine to supply Fischer-Tropsch (F-T) liquids to central Alaska. The plant considered in this study is small (14,640 barrels per day, bbl/d) compared to the recommended commercial size of 50,000 bbl/d for coal-to-liquid plants. The coal supply requirements for the Phase 1 analysis, four million tons per year, were assumed for the Phase 2 analysis to match the probable capacity of the Usibelli mining operations. Alaska refineries are of sufficient size to use all of the product, eliminating the need for F-T exports out of the state. The plant could produce marketable by-products such as sulfur as well as electric power. Slag would be used as backfill at the mine site and CO{sub 2} could be vented, captured or used for enhanced coalbed methane recovery. The unexpected curtailment of oil production from Prudhoe Bay in August 2006 highlighted the dependency of Alaskan refineries (with the exception of the Tesoro facility in Nikiski) on Alaska North Slope (ANS) crude. If the flow of oil from the North Slope declines, these refineries may not be able to meet the in-state needs for diesel, gasoline, and jet fuel. Additional reliable sources of essential fuel products would be beneficial. 36 refs., 14 figs., 29 tabs., 3 apps.

Lawrence Van Bibber; Charles Thomas; Robert Chaney [Research & Development Solutions, LLC (United States)

2007-07-15T23:59:59.000Z

466

Coal supply/demand, 1980 to 2000. Task 3. Resource applications industrialization system data base. Final review draft. [USA; forecasting 1980 to 2000; sector and regional analysis  

SciTech Connect

This report is a compilation of data and forecasts resulting from an analysis of the coal market and the factors influencing supply and demand. The analyses performed for the forecasts were made on an end-use-sector basis. The sectors analyzed are electric utility, industry demand for steam coal, industry demand for metallurgical coal, residential/commercial, coal demand for synfuel production, and exports. The purpose is to provide coal production and consumption forecasts that can be used to perform detailed, railroad company-specific coal transportation analyses. To make the data applicable for the subsequent transportation analyses, the forecasts have been made for each end-use sector on a regional basis. The supply regions are: Appalachia, East Interior, West Interior and Gulf, Northern Great Plains, and Mountain. The demand regions are the same as the nine Census Bureau regions. Coal production and consumption in the United States are projected to increase dramatically in the next 20 years due to increasing requirements for energy and the unavailability of other sources of energy to supply a substantial portion of this increase. Coal comprises 85 percent of the US recoverable fossil energy reserves and could be mined to supply the increasing energy demands of the US. The NTPSC study found that the additional traffic demands by 1985 may be met by the railways by the way of improved signalization, shorter block sections, centralized traffic control, and other modernization methods without providing for heavy line capacity works. But by 2000 the incremental traffic on some of the major corridors was projected to increase very significantly and is likely to call for special line capacity works involving heavy investment.

Fournier, W.M.; Hasson, V.

1980-10-10T23:59:59.000Z

467

International Energy Outlook 1999 - Coal  

Gasoline and Diesel Fuel Update (EIA)

coal.jpg (1776 bytes) coal.jpg (1776 bytes) CoalÂ’s share of world energy consumption falls slightly in the IEO99 forecast. Coal continues to dominate many national fuel markets in developing Asia, but it is projected to lose market share to natural gas in some other areas of the world. Historically, trends in coal consumption have varied considerably by region. Despite declines in some regions, world coal consumption has increased from 84 quadrillion British thermal units (Btu) in 1985 to 93 quadrillion Btu in 1996. Regions that have seen increases in coal consumption include the United States, Japan, and developing Asia. Declines have occurred in Western Europe, Eastern Europe, and the countries of the former Soviet Union. In Western Europe, coal consumption declined by 30

468

STEO December 2012 - coal demand  

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

coal demand seen below 1 billion tons in 2012 for fourth year in a row Coal consumption by U.S. power plants to generate electricity is expected to fall below 1 billion tons in...

469

2009 Coal Age Buyers Guide  

SciTech Connect

The buyers guide lists more than 1200 companies mainly based in the USA, that provide equipment and services to US coal mines and coal preparation plants. The guide is subdivided by product categories.

NONE

2009-07-15T23:59:59.000Z

470

Montana Coal Mining Code (Montana)  

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

The Department of Labor and Industry is authorized to adopt rules pertaining to safety standards for all coal mines in the state. The Code requires coal mine operators to make an accurate map or...

471

U.S. Coal Reserves  

Reports and Publications (EIA)

U.S. Coal Reserves presents detailed estimates of U.S. coal reserves by State, as well as descriptions of the data, methods, and assumptions used to develop such estimates.

Information Center

2012-11-20T23:59:59.000Z

472

2008 Coal Age buyers guide  

Science Conference Proceedings (OSTI)

The buyers guide lists more than 1200 companies mainly based in the USA, that provide equipment and services to US coal mines and coal preparation plants. The guide is subdivided by product categories.

NONE

2008-07-15T23:59:59.000Z

473

A study of coal formation  

SciTech Connect

Coal is a solid, brittle, more or less distinctly stratified, combustible, carbonaceous rock. It is being rediscovered as a reliable energy source, which, historically provided the resource base for the industrialization of the United States economy. A firm understanding of growth in coal development is important to the national energy scene so that the implications of factors influencing coal growth upon the industry`s ability to realize national energy objectives may be determined. As a result, the future of coal development will be facilitated by compiling basic facts on coal reserves, production, and utilization. In view of this, a review and assessment of facts pertaining to the nature and origin of coal is presented. The various properties and uses of coal are then described, followed by a discussion of the process of coal formation.

Jubert, K.; Stevens, G.; Masudi, H.

1995-03-01T23:59:59.000Z

474

Low-rank coal research  

DOE Green Energy (OSTI)

This work is a compilation of reports on ongoing research at the University of North Dakota. Topics include: Control Technology and Coal Preparation Research (SO{sub x}/NO{sub x} control, waste management), Advanced Research and Technology Development (turbine combustion phenomena, combustion inorganic transformation, coal/char reactivity, liquefaction reactivity of low-rank coals, gasification ash and slag characterization, fine particulate emissions), Combustion Research (fluidized bed combustion, beneficiation of low-rank coals, combustion characterization of low-rank coal fuels, diesel utilization of low-rank coals), Liquefaction Research (low-rank coal direct liquefaction), and Gasification Research (hydrogen production from low-rank coals, advanced wastewater treatment, mild gasification, color and residual COD removal from Synfuel wastewaters, Great Plains Gasification Plant, gasifier optimization).

Not Available

1989-01-01T23:59:59.000Z

475

Dry cleaning of Turkish coal  

Science Conference Proceedings (OSTI)

This study dealt with the upgrading of two different type of Turkish coal by a dry cleaning method using a modified air table. The industrial size air table used in this study is a device for removing stones from agricultural products. This study investigates the technical and economical feasibility of the dry cleaning method which has never been applied before on coals in Turkey. The application of a dry cleaning method on Turkish coals designated for power generation without generating environmental pollution and ensuring a stable coal quality are the main objectives of this study. The size fractions of 5-8, 3-5, and 1-3 mm of the investigated coals were used in the upgrading experiments. Satisfactory results were achieved with coal from the Soma region, whereas the upgrading results of Hsamlar coal were objectionable for the coarser size fractions. However, acceptable results were obtained for the size fraction 1-3 mm of Hsamlar coal.

Cicek, T. [Dokuz Eylul University, Izmir (Turkey). Faculty of Engineering

2008-07-01T23:59:59.000Z

476

Plants of the Coal Age  

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

Coal Age Nature Bulletin No. 330-A February 1, 1969 Forest Preserve District of Cook County George W. Dunne, President Roland F. Eisenbeis, Supt. of Conservation PLANTS OF THE COAL...

477

The world price of coal  

E-Print Network (OSTI)

A significant increase in the seaborne trade for coal over the past twenty years has unified formerly separate coal markets into a world market in which prices move in tandem. Due to its large domestic market, the United ...

Ellerman, A. Denny

1994-01-01T23:59:59.000Z

478

Vertical Flow Wetland Pilot Study  

Science Conference Proceedings (OSTI)

This is an interim report to present the preliminary results of a study conducted by Duke Energy to test the potential effectiveness of vertical flow wetlands (VFWs) for the removal of selenium, mercury, and other related compounds from a flue gas desulfurization (FGD) discharge. These compounds commonly are found in and regulated for coal-fired utility water discharges. There is a widespread need for a cost-effective alternative to physiochemical treatment to maintain compliance for these parameters, on...

2008-12-08T23:59:59.000Z

479

Coal combustion system  

SciTech Connect

In a coal combustion system suitable for a gas turbine engine, pulverized coal is transported to a rich zone combustor and burned at an equivalence ratio exceeding 1 at a temperature above the slagging temperature of the coal so that combustible hot gas and molten slag issue from the rich zone combustor. A coolant screen of water stretches across a throat of a quench stage and cools the combustible gas and molten slag to below the slagging temperature of the coal so that the slag freezes and shatters into small pellets. The pelletized slag is separated from the combustible gas in a first inertia separator. Residual ash is separated from the combustible gas in a second inertia separator. The combustible gas is mixed with secondary air in a lean zone combustor and burned at an equivalence ratio of less than 1 to produce hot gas motive at temperature above the coal slagging temperature. The motive fluid is cooled in a dilution stage to an acceptable turbine inlet temperature before being transported to the turbine.

Wilkes, Colin (Lebanon, IN); Mongia, Hukam C. (Carmel, IN); Tramm, Peter C. (Indianapolis, IN)

1988-01-01T23:59:59.000Z

480

Coal gasification apparatus. [Patent application  

DOE Patents (OSTI)

Coal hydrogenation vessel has hydrogen heating passages extending vertically through its wall and opening into its interior.

Nagy, C.K.

1981-04-24T23:59:59.000Z

Note: This page contains sample records for the topic "metallurgical coal flows" 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.


481

Sustainable development with clean coal  

SciTech Connect

This paper discusses the opportunities available with clean coal technologies. Applications include new power plants, retrofitting and repowering of existing power plants, steelmaking, cement making, paper manufacturing, cogeneration facilities, and district heating plants. An appendix describes the clean coal technologies. These include coal preparation (physical cleaning, low-rank upgrading, bituminous coal preparation); combustion technologies (fluidized-bed combustion and NOx control); post-combustion cleaning (particulate control, sulfur dioxide control, nitrogen oxide control); and conversion with the integrated gasification combined cycle.

NONE

1997-08-01T23:59:59.000Z

482

Table 6. Coal production and number of mines by State and coal...  

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

Coal production and number of mines by State and coal rank, 2011" "(thousand short tons)" ,"Bituminous",,"Subbituminous",,"Lignite",,"Anthracite",,"Total" "Coal-Producing State and...

483

REFINING AND END USE STUDY OF COAL LIQUIDS  

Science Conference Proceedings (OSTI)

Two direct coal liquids were evaluated by linear programming analysis to determine their value as petroleum refinery feedstock. The first liquid, DL1, was produced from bitiuminous coal using the Hydrocarbon Technologies, Inc.(HTI) two-stage hydrogenation process in Proof of Concept Run No.1, POC-1. The second liquid, DL2,was produced from sub-bituminous coal using a three-stage HTI process in Proof of Concept Run No. 2, POC-2; the third stage being a severe hydrogenation process. A linear programming (LP) model was developed which simulates a generic 150,000 barrel per day refinery in the Midwest U.S. Data from upgrading tests conducted on the coal liquids and related petroleum fractions in the pilot plant testing phase of the Refining and End Use Study was inputed into the model. The coal liquids were compared against a generic petroleum crude feedstock. under two scenarios. In the first scenario, it was assumed that the refinery capacity and product slate/volumes were fixed. The coal liquids would be used to replace a portion of the generic crude. The LP results showed that the DL1 material had essentially the same value as the generic crude. Due to its higher quality, the DL2 material had a value of approximately 0.60 $/barrel higher than the petroleum crude. In the second scenario, it was assumed that a market opportunity exists to increase production by one-third. This requires a refinery expansion. The feedstock for this scenario could be either 100% petroleum crude or a combination of petroleum crude and the direct coal liquids. Linear programming analysis showed that the capital cost of the refinery expansion was significantly less when coal liquids are utilized. In addition, the pilot plant testing showed that both of the direct coal liquids demonstrated superior catalytic cracking and naphtha reforming yields. Depending on the coal liquid flow rate, the value of the DL1 material was 2.5-4.0 $/barrel greater than the base petroleum crude, while the DL2 material was 3.0-4.0 /barrel higher than the crude. Co-processing the coal liquids with lower quality, less expensive petroleum crudes that have higher sulfur, resid and metals contents was also examined. The coal liquids have higher values under this scenario, but the values are dependent on the prices of the alternative crudes.

NONE

1998-08-12T23:59:59.000Z

48