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Sample records for arkansas surface coal

  1. Arkansas

    U.S. Energy Information Administration (EIA) (indexed site)

    Arkansas

  2. Arkansas - Compare - U.S. Energy Information Administration (EIA)

    U.S. Energy Information Administration (EIA) (indexed site)

    Arkansas Arkansas

  3. Arkansas - Rankings - U.S. Energy Information Administration (EIA)

    U.S. Energy Information Administration (EIA) (indexed site)

    Arkansas Arkansas

  4. Arkansas - Search - U.S. Energy Information Administration (EIA)

    U.S. Energy Information Administration (EIA) (indexed site)

    Arkansas Arkansas

  5. Enhancement of surface properties for coal beneficiation

    SciTech Connect (OSTI)

    Chander, S.; Aplan, F.F.

    1992-01-30

    This report will focus on means of pyrite removal from coal using surface-based coal cleaning technologies. The major subjects being addressed in this study are the natural and modulated surface properties of coal and pyrite and how they may best be utilized to facilitate their separation using advanced surface-based coal cleaning technology. Emphasis is based on modified flotation and oil agglomerative processes and the basic principles involved. The four areas being addressed are: (1) Collectorless flotation of pyrite; (2) Modulation of pyrite and coal hydrophobicity; (3) Emulsion processes and principles; (4) Evaluation of coal hydrophobicity.

  6. Coal surface control for advanced physical fine coal cleaning technologies

    SciTech Connect (OSTI)

    Morsi, B.I.; Chiang, S.H.; Sharkey, A.; Blachere, J.; Klinzing, G.; Araujo, G.; Cheng, Y.S.; Gray, R.; Streeter, R.; Bi, H.; Campbell, P.; Chiarlli, P.; Ciocco, M.; Hittle, L.; Kim, S.; Kim, Y.; Perez, L.; Venkatadri, R.

    1992-01-01

    This final report presents the research work carried out on the Coal Surface Control for Advanced Physical Fine Coal Cleaning Technologies project, sponsored by the US Department of Energy, Pittsburgh Energy Technology Center (DOE/PETC). The project was to support the engineering development of the selective agglomeration technology in order to reduce the sulfur content of US coals for controlling SO[sub 2] emissions (i.e., acid rain precursors). The overall effort was a part of the DOE/PETCs Acid Rain Control Initiative (ARCI). The overall objective of the project is to develop techniques for coal surface control prior to the advanced physical fine coal cleaning process of selective agglomeration in order to achieve 85% pyrite sulfur rejection at an energy recovery greater than 85% based on run-of-mine coal. The surface control is meant to encompass surface modification during grinding and laboratory beneficiation testing. The project includes the following tasks: Project planning; methods for analysis of samples; development of standard beneficiation test; grinding studies; modification of particle surface; and exploratory R D and support. The coal samples used in this project include three base coals, Upper Freeport - Indiana County, PA, Pittsburgh NO. 8 - Belmont County, OH, and Illinois No. 6 - Randolph County, IL, and three additional coals, Upper Freeport - Grant County- WV, Kentucky No. 9 Hopkins County, KY, and Wyodak - Campbell County, WY. A total of 149 drums of coal were received.

  7. Coal surface control for advanced physical fine coal cleaning technologies

    SciTech Connect (OSTI)

    Morsi, B.I.; Chiang, S.H.; Sharkey, A.; Blachere, J.; Klinzing, G.; Araujo, G.; Bi, H.; Campbell, P.; Ciocco, M.; Hittle, L.; Kim, S.; Kim, Y.

    1991-01-01

    The overall objective of the project is to develop techniques for coal surface control prior to the advanced physical fine coal cleaning process of selective agglomeration in order to achieve 90% pyrite sulfur rejection at an energy recovery greater than 90% based on run-of-mine coal. The surface control is meant to encompass surface modification during grinding and laboratory beneficiation testing. The project includes the following tasks: Project planning, method for analysis of samples, development of standard beneficiation test, grinding studies, modification of particle surface, and exploratory R D and support. 5 refs., 22 figs., 34 tabs.

  8. Coal surface control for advanced physical fine coal cleaning technologies

    SciTech Connect (OSTI)

    Morsi, B.I.; Chiang, S.-H.; Sharkey, A.; Blachere, J.; Klinzing, G.; Araujo, G.; Venkatadri, R.; Bi, H.; Campbell, P.; Ciocco, M.; Hittle, L.; Kim, S.; Perez, L.

    1990-01-01

    The progress achieved in leading to effective surface control for selective agglomeration processes was summarized. Several analytical techniques developed in Task 3 were utilized during this quarter to characterize coal samples obtained from agglomeration tests. Surface and near surface (1 {mu}m depth) functional groups were analyzed using Diffuse Reflectance Infrared Fourier Transform spectroscopy. Surface composition analyses were conducted using Laser Microprobe Mass Analyzer. The results of these analysis are being used to relate the agglomeration results with surface modifications to the properties of coal samples. The development of a method a for direct determination of pyrite using X-ray diffraction was continued. The sample preparation technique was improved in order to increase the reproducibility of the analysis. The contact angle of n-heptane droplets on coal pellets immersed in water were measured. The results of these measurements suggest that high shear mixing is necessary for wetting coal surfaces with n-heptane. Agglomeration tests using n-heptane as agglomerant were carried out this quarter. For Pittsburgh {number sign}8 coal, better performance was obtained using n-heptane than using n-pentane. For Upper Freeport coal, however, lower pyritic sulfur rejection was obtained with n-heptane. A n-heptane to coal ratio between 1.25 and 1.5 was found to produce the best performance results for Illinois {number sign}6 coal. A study of the effect of agglomeration time on the agglomeration process performance for Illinois {number sign}6 coal using n-pentane and n-heptane as agglomerants indicates that no significant gains in performance are possible using agglomeration times longer than 60 seconds. The addition of tall oil as a binding agent after the high shear agglomeration step resulted in a large increase in overall coal yield and energy recovery for Illinois {number sign}6 coal. 27 figs., 13 tabs.

  9. Coal surface control for advanced physical fine coal cleaning technologies

    SciTech Connect (OSTI)

    Morsi, B.I.; Chiang, S-H.; Sharkey, A.; Blachere, J.; Klinzing, G.; Araujo, G.; Venkatadri, R.; Bi, H.; Campbell, P.; Ciocco, M.; Hittle, L.; Kim, S.; Kim, Y.; Perez, L.

    1990-01-01

    Research continued on surface control of coal. This report describes Task 7 of the program. The following topics are discussed: quantitative distribution of iron species; surface functional groups; comparison of wet and dry ground samples; study of Illinois No. 6 coal wet ground using additives; study of wet grinding using tall oil; elemental distribution of coal samples wet ground without additives; elemental distribution of coal samples wet ground with tall oil; direct determination of pyrite by x-ray diffraction; electron microprobe measurements; morphology; zeta potential measurements; pyrite size distribution; statistical analysis of grinding study data; grinding using N-pentane; cyclohexane, and N-heptane; study of the effects of the grinding method and time; study of the effects of the agglomeration time; and the pentane to coal ratio. 13 refs.

  10. Nevada County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    County, Arkansas Bluff City, Arkansas Bodcaw, Arkansas Cale, Arkansas Emmet, Arkansas Prescott, Arkansas Rosston, Arkansas Willisville, Arkansas Retrieved from "http:...

  11. Washington County, Arkansas: Energy Resources | Open Energy Informatio...

    Open Energy Information (Open El) [EERE & EIA]

    Farmington, Arkansas Fayetteville, Arkansas Goshen, Arkansas Greenland, Arkansas Johnson, Arkansas Lincoln, Arkansas Prairie Grove, Arkansas Springdale, Arkansas Tontitown,...

  12. Crittenden County, Arkansas: Energy Resources | Open Energy Informatio...

    Open Energy Information (Open El) [EERE & EIA]

    Gilmore, Arkansas Horseshoe Lake, Arkansas Jennette, Arkansas Jericho, Arkansas Marion, Arkansas Sunset, Arkansas Turrell, Arkansas West Memphis, Arkansas Retrieved from...

  13. Sebastian County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    County, Arkansas Barling, Arkansas Bonanza, Arkansas Central City, Arkansas Fort Smith, Arkansas Greenwood, Arkansas Hackett, Arkansas Hartford, Arkansas Huntington,...

  14. Coal surface control for advanced fine coal flotation

    SciTech Connect (OSTI)

    Fuerstenau, D.W.; Hanson, J.S.; Diao, J.; Harris, G.H.; De, A.; Sotillo, F. ); Somasundaran, P.; Harris, C.C.; Vasudevan, T.; Liu, D.; Li, C. ); Hu, W.; Zou, Y.; Chen, W. ); Choudhry, V.; Shea, S.; Ghosh, A.; Sehgal, R. )

    1992-03-01

    The initial goal of the research project was to develop methods of coal surface control in advanced froth flotation to achieve 90% pyritic sulfur rejection, while operating at Btu recoveries above 90% based on run-of-mine quality coal. Moreover, the technology is to concomitantly reduce the ash content significantly (to six percent or less) to provide a high-quality fuel to the boiler (ash removal also increases Btu content, which in turn decreases a coal's emission potential in terms of lbs SO{sub 2}/million Btu). (VC)

  15. Oxidation of coal and coal pyrite mechanisms and influence on surface characteristics. [Coal pyrite electrodes

    SciTech Connect (OSTI)

    Doyle, F.M.

    1992-01-01

    The objective of this research is to develop a mechanistic understanding of the oxidation of coal and coal pyrite, and to correlate the intrinsic physical and chemical properties of these minerals, along with changes resulting from oxidation, with those surface properties that influence the behavior in physical cleaning processes. The results will provide fundamental insight into oxidation, in terms of the bulk and surface chemistry, the microstructure, and the semiconductor properties of the pyrite. During the eighth quarter, wet chemical and dry oxidation tests were done on Upper Freeport coal from the Troutville [number sign]2 Mine, Clearfield County, Pennsylvania. In addition electrochemical experiments were done on electrodes prepared from Upper Freeport coal pyrite and Pittsburgh coal pyrite samples provided by the US Bureau of Mines, Pittsburgh Research Center, Pennsylvania.

  16. Coal surface structure and thermodynamics. Final report

    SciTech Connect (OSTI)

    Larsen, J.W.; Wernett, P.C.; Glass, A.S.; Quay, D.; Roberts, J.

    1994-05-01

    Coals surfaces were studied using static surface adsorption measurements, low angle x-ray scattering (LAXS), inverse gas chromatography (IGC) and a new {sup 13}C NMR relaxation technique. A comparison of surface areas determined by hydrocarbon gas adsorption and LAXS led to the twin conclusions that the hydrocarbons had to diffuse through the solid to reach isolated pores and that the coal pores do not form interconnected networks, but are largely isolated. This conclusion was confirmed when IGC data for small hydrocarbons showed no discontinuities in their size dependence as usually observed with porous solids. IGC is capable of providing adsorption thermodynamics of gases on coal surfaces. The interactions of non-polar molecules and coal surfaces are directly proportioned to the gas molecular polarizability. For bases, the adsorption enthalpy is equal to the polarizability interaction plus the heat of hydrogen bond formation with phenol. Amphoteric molecules have more complex interactions. Mineral matter can have highly specific effects on surface interactions, but with most of the molecules studied is not an important factor.

  17. Craighead County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Black Oak, Arkansas Bono, Arkansas Brookland, Arkansas Caraway, Arkansas Cash, Arkansas Egypt, Arkansas Jonesboro, Arkansas Lake City, Arkansas Monette, Arkansas Retrieved from...

  18. White County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Arkansas Kensett, Arkansas Letona, Arkansas McRae, Arkansas Pangburn, Arkansas Rose Bud, Arkansas Russell, Arkansas Searcy, Arkansas West Point, Arkansas Retrieved from...

  19. Oxidation of coal and coal pyrite mechanisms and influence on surface characteristics

    SciTech Connect (OSTI)

    Doyle, F.M.

    1992-01-01

    During the ninth quarter, electrochemical experiments were done on electrodes prepared from Upper Freeport coal pyrite and Pittsburgh coal pyrite samples provided by the US Bureau of Mines, Pittsburgh Research Center, Pennsylvania. Scanning electron microscopy and energy dispersive X-ray analysis were done to characterize the morphology and composition of the surface of as-received coal, oxidized coal and coal pyrite. In addition, electrokinetic tests were done on Upper Freeport coal pyrite.

  20. Thermodynamics and surface structure of coals

    SciTech Connect (OSTI)

    Glass, A.S.; Larsen, J.W.; Quay, D.M.; Roberts, J.E.

    1991-01-01

    NMR relaxation and shift reagents are being deposited on the surface of coals. The dipolar coupling of the unpaired electron spin of the relaxation agent and the carbon atom should significantly shorten the carbon T, which should broaden it away. We propose to record the NMR spectrum of a coal before and after deposition and subtract the spectra. The difference spectra will arise from the functionalities within approximately one nanometer of the surface and reveal the surface composition of the coal. In order to determine the surface concentration of the dysprosium in the coal, we are using x-ray photoelectron spectroscopy (XPS) also known as electron spectroscopy for chemical analysis (ESCA). XPS is a surface technique that can be used for the elucidation of chemical structure. The binding energy for each electron in each element is unique. The measurement of the binding energy in XPS allows the identification of the element and its oxidation state. The relative atomic concentrations of each element can also be determined using XPS spectra.

  1. Enhancement of surface properties for coal beneficiation. Final report

    SciTech Connect (OSTI)

    Chander, S.; Aplan, F.F.

    1992-01-30

    This report will focus on means of pyrite removal from coal using surface-based coal cleaning technologies. The major subjects being addressed in this study are the natural and modulated surface properties of coal and pyrite and how they may best be utilized to facilitate their separation using advanced surface-based coal cleaning technology. Emphasis is based on modified flotation and oil agglomerative processes and the basic principles involved. The four areas being addressed are: (1) Collectorless flotation of pyrite; (2) Modulation of pyrite and coal hydrophobicity; (3) Emulsion processes and principles; (4) Evaluation of coal hydrophobicity.

  2. Lawrence County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Powhatan, Arkansas Ravenden, Arkansas Sedgwick, Arkansas Smithville, Arkansas Strawberry, Arkansas Walnut Ridge, Arkansas Retrieved from "http:en.openei.orgw...

  3. Carroll County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Arkansas Alpena, Arkansas Beaver, Arkansas Berryville, Arkansas Blue Eye, Arkansas Eureka Springs, Arkansas Green Forest, Arkansas Oak Grove, Arkansas Retrieved from "http:...

  4. Boone County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Bellefonte, Arkansas Bergman, Arkansas Diamond City, Arkansas Everton, Arkansas Harrison, Arkansas Lead Hill, Arkansas Omaha, Arkansas South Lead Hill, Arkansas Valley...

  5. Perry County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Zone Subtype A. Places in Perry County, Arkansas Adona, Arkansas Bigelow, Arkansas Casa, Arkansas Fourche, Arkansas Houston, Arkansas Perry, Arkansas Perryville, Arkansas...

  6. Surface electrochemical control for fine coal and pyrite separation

    SciTech Connect (OSTI)

    Hu, Weibai; Huang, Qinping; Riley, A.; Zhu, Ximeng; Bodily, D.M.; Liang, Jun; Zhong, Tinghe; Wadsworth, M.E.

    1991-01-01

    This technical progress report, prepared in accordance with the reporting requirements of DOE Project No. DE-AC22-89PC89758, covers the work performed from April 1, 1991 to June 30, 1991. The ongoing work includes the characterization of coal pyrites, the floatability evaluation of three typical US coal samples, the flotation behavior of coal pyrites, the electrochemical measurement of the surface properties of coal pyrites, and the characterization of species produced at pyrite surfaces. 6 refs., 20 figs.

  7. Are surface coal mine sediment ponds working

    SciTech Connect (OSTI)

    Poe, M.L.; Betson, R.P.

    1985-12-09

    Flowrates and storm generated water quality data were collected at sedimentation ponds on four surface mines in the states of Pennsylvania, Maryland, and West Virginia. The water quality data were analyzed for suspended solids and settleable solids content, and particle size distribution. The results were compared to the effluent limitations guidelines for total suspended solids as promulgated under the Clean Water Act for Coal Mining Point Source Category and adopted under the Surface Mine Control and Reclamation Act of 1977 and the resulting state regulatory programs. 3 references, 1 figure, 2 tables.

  8. Further studies of the effects of oxidation on the surface properties of coal and coal pyrite

    SciTech Connect (OSTI)

    Herrera, M.N.

    1994-12-31

    The objective of this research was to investigate the oxidation behavior of coal and coal pyrite and to correlate the changes in the surface properties induced by oxidation, along with the intrinsic physical and chemical properties of these organic and inorganic materials, with the behavior in physical coal cleaning processes. This provide more fundamental knowledge for understanding the way in which different factors interact in a medium as heterogeneous as coal. Fourteen coal samples of different ranks ranging from high to medium sulfur content were studied by dry oxidation tests at different temperatures and humidities, and by wet oxidation tests using different oxidizing agents. The concentration of surface oxygen functional groups was determined by ion-exchange methods. The changes in the coal composition with oxidation were analyzed by spectroscopic techniques. The wettability of as-received and oxidized coal and coal pyrite samples was assessed by film flotation tests. The electrokinetic behavior of different coals and coal pyrite samples was studied by electrokinetic tests using electrophoresis. Possible oxidation mechanisms have been proposed to explain the changes on the coal surface induced by different oxidation treatments.

  9. Searcy County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Arkansas Gilbert, Arkansas Leslie, Arkansas Marshall, Arkansas Pindall, Arkansas St. Joe, Arkansas Retrieved from "http:en.openei.orgwindex.php?titleSearcyCounty,Arkansa...

  10. Poinsett County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Subtype A. Places in Poinsett County, Arkansas Fisher, Arkansas Harrisburg, Arkansas Lepanto, Arkansas Marked Tree, Arkansas Trumann, Arkansas Tyronza, Arkansas Waldenburg,...

  11. Determining the research needs of the surface coal mining industry

    SciTech Connect (OSTI)

    Zell, L.M.

    1982-12-01

    This paper reveals avenues open to the coal industry to help gain technology and research information needed to meet the requirements of the Surface Mining Control and Reclamation Act of 1977. It discusses projects of the Department of Energy's (DOE) Office of Coal Mining and the Mining and Reclamation Council of America (MARC) to help meet the environmental needs as well as the coal industry needs.

  12. Oxidation of coal and coal pyrite mechanisms and influence on surface characteristics. Technical progress report, December 31, 1992

    SciTech Connect (OSTI)

    Doyle, F.M.

    1992-12-31

    During the ninth quarter, electrochemical experiments were done on electrodes prepared from Upper Freeport coal pyrite and Pittsburgh coal pyrite samples provided by the US Bureau of Mines, Pittsburgh Research Center, Pennsylvania. Scanning electron microscopy and energy dispersive X-ray analysis were done to characterize the morphology and composition of the surface of as-received coal, oxidized coal and coal pyrite. In addition, electrokinetic tests were done on Upper Freeport coal pyrite.

  13. Coal surface control for advanced fine coal flotation. Final report, October 1, 1988--March 31, 1992

    SciTech Connect (OSTI)

    Fuerstenau, D.W.; Hanson, J.S.; Diao, J.; Harris, G.H.; De, A.; Sotillo, F.; Somasundaran, P.; Harris, C.C.; Vasudevan, T.; Liu, D.; Li, C.; Hu, W.; Zou, Y.; Chen, W.; Choudhry, V.; Shea, S.; Ghosh, A.; Sehgal, R.

    1992-03-01

    The initial goal of the research project was to develop methods of coal surface control in advanced froth flotation to achieve 90% pyritic sulfur rejection, while operating at Btu recoveries above 90% based on run-of-mine quality coal. Moreover, the technology is to concomitantly reduce the ash content significantly (to six percent or less) to provide a high-quality fuel to the boiler (ash removal also increases Btu content, which in turn decreases a coal`s emission potential in terms of lbs SO{sub 2}/million Btu). (VC)

  14. Southwest Arkansas E C C (Arkansas) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Arkansas E C C (Arkansas) Jump to: navigation, search Name: Southwest Arkansas E C C Place: Arkansas Phone Number: (888) 265-2743 Website: www.swrea.com Twitter: @SWAECC Facebook:...

  15. Benton County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Retail Energy, LLC (Texas) Places in Benton County, Arkansas Avoca, Arkansas Bella Vista, Arkansas Bentonville, Arkansas Bethel Heights, Arkansas Cave Springs, Arkansas...

  16. Pope County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    169-2006 Climate Zone Number 3 Climate Zone Subtype A. Places in Pope County, Arkansas Atkins, Arkansas Dover, Arkansas Hector, Arkansas London, Arkansas Pottsville, Arkansas...

  17. Lonoke County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Climate Zone Number 3 Climate Zone Subtype A. Places in Lonoke County, Arkansas Allport, Arkansas Austin, Arkansas Cabot, Arkansas Carlisle, Arkansas Coy, Arkansas England,...

  18. Randolph County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Number 3 Climate Zone Subtype A. Places in Randolph County, Arkansas Biggers, Arkansas Maynard, Arkansas O'Kean, Arkansas Pocahontas, Arkansas Ravenden Springs, Arkansas Reyno,...

  19. Izard County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Guion, Arkansas Horseshoe Bend, Arkansas Melbourne, Arkansas Mount Pleasant, Arkansas Oxford, Arkansas Pineville, Arkansas Retrieved from "http:en.openei.orgw...

  20. Crawford County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Climate Zone Number 3 Climate Zone Subtype A. Places in Crawford County, Arkansas Alma, Arkansas Cedarville, Arkansas Chester, Arkansas Dyer, Arkansas Kibler, Arkansas...

  1. Woodruff County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Number 3 Climate Zone Subtype A. Places in Woodruff County, Arkansas Augusta, Arkansas Cotton Plant, Arkansas Hunter, Arkansas McCrory, Arkansas Patterson, Arkansas Retrieved from...

  2. Union County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Number 3 Climate Zone Subtype A. Places in Union County, Arkansas Calion, Arkansas El Dorado, Arkansas Felsenthal, Arkansas Huttig, Arkansas Junction City, Arkansas Norphlet,...

  3. ,"Arkansas Natural Gas Summary"

    U.S. Energy Information Administration (EIA) (indexed site)

    Prices" "Sourcekey","N3050AR3","N3010AR3","N3020AR3","N3035AR3","N3045AR3" "Date","Natural Gas Citygate Price in Arkansas (Dollars per Thousand Cubic Feet)","Arkansas Price of ...

  4. Characterization of the surface properties of Illinois Basin coals. Technical report, December 1, 1991--February 29, 1992

    SciTech Connect (OSTI)

    Demir, I.; Harvey, R.D.; Lizzio, A.A.

    1992-08-01

    Understanding the surface properties of coal is important for predicting the physical-chemical behavior of coal during coal cleaning combustion and conversion. Data on surface properties help coal scientists and engineers in the design of effective coal desulfurization processes, and thereby aid in the marketability of Illinois Basin coals. The main objective of this project is to characterize the surface properties (surface area, porosity, pore size distribution, surface charge, and surface chemical structure) of eight coals in the Illinois Basin Coal Sample Program (IBCSP), and explore statistical relationships between surface properties and other coal characteristics.

  5. Coal surface control for advanced physical fine coal cleaning technologies. Final report, September 19, 1988--August 31, 1992

    SciTech Connect (OSTI)

    Morsi, B.I.; Chiang, S.H.; Sharkey, A.; Blachere, J.; Klinzing, G.; Araujo, G.; Cheng, Y.S.; Gray, R.; Streeter, R.; Bi, H.; Campbell, P.; Chiarlli, P.; Ciocco, M.; Hittle, L.; Kim, S.; Kim, Y.; Perez, L.; Venkatadri, R.

    1992-12-31

    This final report presents the research work carried out on the Coal Surface Control for Advanced Physical Fine Coal Cleaning Technologies project, sponsored by the US Department of Energy, Pittsburgh Energy Technology Center (DOE/PETC). The project was to support the engineering development of the selective agglomeration technology in order to reduce the sulfur content of US coals for controlling SO{sub 2} emissions (i.e., acid rain precursors). The overall effort was a part of the DOE/PETCs Acid Rain Control Initiative (ARCI). The overall objective of the project is to develop techniques for coal surface control prior to the advanced physical fine coal cleaning process of selective agglomeration in order to achieve 85% pyrite sulfur rejection at an energy recovery greater than 85% based on run-of-mine coal. The surface control is meant to encompass surface modification during grinding and laboratory beneficiation testing. The project includes the following tasks: Project planning; methods for analysis of samples; development of standard beneficiation test; grinding studies; modification of particle surface; and exploratory R&D and support. The coal samples used in this project include three base coals, Upper Freeport - Indiana County, PA, Pittsburgh NO. 8 - Belmont County, OH, and Illinois No. 6 - Randolph County, IL, and three additional coals, Upper Freeport - Grant County- WV, Kentucky No. 9 Hopkins County, KY, and Wyodak - Campbell County, WY. A total of 149 drums of coal were received.

  6. Fulton County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    169-2006 Climate Zone Number 4 Climate Zone Subtype A. Places in Fulton County, Arkansas Ash Flat, Arkansas Cherokee Village, Arkansas Hardy, Arkansas Horseshoe Bend, Arkansas...

  7. Sharp County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    169-2006 Climate Zone Number 3 Climate Zone Subtype A. Places in Sharp County, Arkansas Ash Flat, Arkansas Cave City, Arkansas Cherokee Village, Arkansas Evening Shade, Arkansas...

  8. Jefferson County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Pine Bluff, Arkansas Redfield, Arkansas Sherrill, Arkansas Wabbaseka, Arkansas White Hall, Arkansas Retrieved from "http:en.openei.orgwindex.php?titleJeffersonCounty,Arka...

  9. Cross County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    A. Places in Cross County, Arkansas Cherry Valley, Arkansas Hickory Ridge, Arkansas Parkin, Arkansas Wynne, Arkansas Retrieved from "http:en.openei.orgwindex.php?titleCross...

  10. Lafayette County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Climate Zone Number 3 Climate Zone Subtype A. Places in Lafayette County, Arkansas Bradley, Arkansas Buckner, Arkansas Lewisville, Arkansas Stamps, Arkansas Retrieved from...

  11. Pyrite surface characterization and control for advanced fine coal desulfurization technologies

    SciTech Connect (OSTI)

    Wang, X.H.; Leonard, J.W.; Parekh, B.K.; Raichur, A.M.; Jiang, C.L.

    1992-01-01

    The objective of the project is to conduct extensive fundamental studies on the surface reactivity and surface hydrophobicity of coal-pyrites using various surface characterization techniques and to understand how the alteration of the coal-pyrite surface affects the efficiency of pyrite rejection in coal flotation. During this reporting period, the influence of the impurity content, particularly coal/carbon content, on the electrochemical oxidation of pyrite surfaces was investigated. The studies demonstrate that the coal/carbon content in coal-pyrite has a determining effect on the surface reactivity of pyrite. The oxidation behavior of high carbon-content coal-pyrite is completely different from that of purer coal-pyrite and ore-pyrite. The effects of flotation gases on the flotation behavior of coal and the surface hydrophobicity of various coal-pyrite were investigated. It was found from the lab-scale column flotation studies that among the various gases studied (air, oxygen, argon, nitrogen and carbon dioxide), carbon dioxide produced the best results with a combustible recovery of 90% and ash-content of less than 9 percent. Finally, the surface energetic studies revealed that the surfaces of pyrites and coals produced by wet grinding is more heterogenous than that prepared by dry grinding.

  12. Enhanced cover methods for surface coal refuse reclamation

    SciTech Connect (OSTI)

    Gentile, L.F.; Cargill, K.W.; McGarvie, S.D.

    1997-12-31

    Controlling acid rock drainage (ARD) can be a major component of surface mining reclamation. An enhanced reclamation cover system is being constructed to control infiltration of rain water and generation of ARD from coal-refuse disposal areas at a closed mine in southern Illinois. Development of the mine reclamation plan required consideration of ARD generation in coal refuse disposal areas located adjacent to an alluvial aquifer used for public water supply. An integrated site characterization was performed at the mine to provide information to develop and support the enhanced reclamation plan. The enhanced cover system is similar to covers required for municipal solid waste landfills by the Resource Conversation and Recovery Act (RCRA), Subtitle D regulations. The system comprises a graded and compacted gob layer, overlain by a compacted clay liner, and a protective soil cover. The results of infiltration modeling and analyses showed that the standard reclamation cover is effective in reducing infiltration by about 18 percent compared to an unreclaimed coal-refuse surface. The modeling results showed that the inhanced cover system should reduce infiltration by about 84 percent. The geochemical modeling results showed that the reduction in infiltration would help minimize ARD generation and contribute to an earlier reclamation of the mine site.

  13. Oxidation of coal and coal pyrite mechanisms and influence on surface characteristics. Technical progress report, September 30, 1992

    SciTech Connect (OSTI)

    Doyle, F.M.

    1992-12-31

    The objective of this research is to develop a mechanistic understanding of the oxidation of coal and coal pyrite, and to correlate the intrinsic physical and chemical properties of these minerals, along with changes resulting from oxidation, with those surface properties that influence the behavior in physical cleaning processes. The results will provide fundamental insight into oxidation, in terms of the bulk and surface chemistry, the microstructure, and the semiconductor properties of the pyrite. During the eighth quarter, wet chemical and dry oxidation tests were done on Upper Freeport coal from the Troutville {number_sign}2 Mine, Clearfield County, Pennsylvania. In addition electrochemical experiments were done on electrodes prepared from Upper Freeport coal pyrite and Pittsburgh coal pyrite samples provided by the US Bureau of Mines, Pittsburgh Research Center, Pennsylvania.

  14. Small surface coal mine operators handbook. Final report

    SciTech Connect (OSTI)

    Tourbier, J.T.; Westmacott, R.

    1980-06-01

    The purpose of this handbook is to interpret the Regulations of the Surface Mining Control and Reclamation Act of 1977 (Public Law 95-87) (hereafter referred to as the Act) as they affect the operators of small surface coal mines. Further, the purpose of this handbook is to make it easier for the small operator to compare his operation with the act in order to determine compliance with the regulations. Part 795 of the Regulations deals specifically with the Small Operator Assistance Program. This program relieves the operator of the cost of carrying out certain hydrologic and geologic analyses required by the Regulations. The emphasis of this handbook is on the protection of water resources during mining and reclamation operations. As almost all the operations in surface mining directly or indirectly affect water the authors have included some operations which may only marginally affect water quality or hydrology. Anthracite mining, lignite mining, coal processing, refuse disposal, and slurry disposal are not covered in this handbook.

  15. Fly ash and coal mineral matter surface transformations during heating

    SciTech Connect (OSTI)

    Baer, D R; Smith, R D

    1982-05-01

    A study is reported of surface segregation phenomena for fly ash and aluminosilicates representative of coal mineral matter during heating. The materials studied included a 20-..mu..m average diameter fly ash powder, a glass prepared from the fly ash, and Ca- and K-rich aluminosilicate minerals. The samples were heated both in air and under vacuum for extended periods at temperatures up to 1100/sup 0/C. XPS, Auger and SIMS methods were used to obtain relative surface elemental concentrations for major and minor components and depth profiles for some of the samples. Major differences were noted between samples heated in air (oxidizing) and those heated in vacuum (reducing) environments. For the fly ash glass heated in air Fe, Ti and Mg become enriched on the surfaces while heating in vacuum leads to Si surface segregation. Different trends upon heating were also observed for the Ca- and K-rich aluminosilicates. The results indicate two levels of surface enrichment upon the fly ash glass; a thin (< 500 A) layer and a thicker (1- to 2-..mu..m) layer most evident for heating in air where an Fe-rich layer is formed. The present results indicate that the rates of surface segregation may not be sufficiently fast on the time scale of fly ash formation to result in equilibrium surface segregation. It is concluded that condensation processes during fly ash formation probably play a major role in the observed fly ash surface enrichments.

  16. Arkansas/Wind Resources/Full Version | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Distributed Wind Energy Association Arkansas Wind Resources Arkansas Energy Office: Wind AWEA State Wind Energy Statistics: Arkansas Southeastern Wind Coalition...

  17. Hempstead County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    3 Climate Zone Subtype A. Utility Companies in Hempstead County, Arkansas City of Hope, Arkansas (Utility Company) Places in Hempstead County, Arkansas Blevins, Arkansas...

  18. Madison County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    A. Places in Madison County, Arkansas Hindsville, Arkansas Huntsville, Arkansas St. Paul, Arkansas Retrieved from "http:en.openei.orgwindex.php?titleMadisonCounty,Arkans...

  19. Pyrite surface characterization and control for advanced fine coal desulfurization technologies

    SciTech Connect (OSTI)

    Wang, Xiang-Huai.

    1991-01-01

    The objective of this project is to conduct extensive studies on the surfaces reactivity of pyrite by using electrochemical, surface analysis, potentiometric and calorimetric titration, and surface hydrophobicity characterization techniques and to correlate the alteration of the coal-pyrite surface with the efficiency of the pyrite rejection in coal flotation. The product as well as their structure, the mechanism and the kinetics of the oxidation of coal-pyrite surfaces and their interaction with various chemical reagents will be systematically studied and compared with that of mineral-pyrite and synthetic pyrite to determine the correlation between the surface reactivity of pyrite and the bulk chemical properties of pyrite and impurities. The surface chemical studies and the studies of floatability of coal-pyrite and the effect of various parameters such as grinding media and environment, aging under different atmospheres, etc., are directed at identifying the cause and possible solutions of the pyrite rejection problems in coal cleaning.

  20. Pyrite surface characterization and control for advanced fine coal desulfurization technologies

    SciTech Connect (OSTI)

    Wang, Xiang-Huai; Leonard, J.W.; Parekh, B.K.; Raichur, A.M.; Jiang, Chengliang.

    1991-01-01

    The objective of this project is to conduct extensive studies on the surface reactivity of pyrite by using electrochemical, surface analysis, potentiometric and calorimetric titration, and surface hydrophobicity characterization techniques and to correlate the alteration of the coal-pyrite surface with the efficiency of pyrite rejection in coal flotation. The products as well as their structure, the mechanisms and the kinetics of the oxidation of coal-pyrite surfaces and their interaction with various chemical reagents will be systematically studied and compared with that of mineral-pyrite and synthetic pyrite to determine the correlation between the surface reactivity of pyrite and the bulk chemical properties of pyrite and impurities. The surface chemical studies and the studies of floatability of coal-pyrite and the effect of various parameters such as grinding media and environment, aging under different atmospheres, etc. on thereof will lead to identifying the causes and possible solutions of the pyrite rejection problems in coal cleaning.

  1. Pyrite surface characterization and control for advanced fine coal desulfurization technologies

    SciTech Connect (OSTI)

    Wang, Xiang-Huai.

    1991-01-01

    The objective of this project is to conduct extensive studies on the surface reactivity of pyrite by using electrochemical, surface analysis, potentiometric and calorimetric titration, and surface hydrophobicity characterization techniques and to correlate the alteration of the coal-pyrite surface with the efficiency of pyrite rejection in coal flotation. The products as well as their structure, the mechanisms and the kinetics of the oxidation of coal-pyrite surfaces and their interaction with various chemical reagents will be systematically studied and compared with that of mineral-pyrite and synthetic pyrite to determine the correlation between the surface reactivity of pyrite and the bulk chemical properties of pyrite and impurities. The surface chemical studies and the studies of floatability of coal-pyrite and the effect of various parameters such as grinding media and environment, aging under different atmospheres, etc. on thereof, are directed at identifying the causes and possible solutions of the pyrite rejection problems in coal cleaning.

  2. Property:EZFeed/JurisdictionDesc | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Arkansas Air Pollution Control Code (Arkansas) + statewide Arkansas Surface Coal Mining Reclamation Act (Arkansas) + statewide Atomic Energy and Nuclear Materials Program...

  3. Arkansas Natural Gas Processed in Arkansas (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    in Arkansas (Million Cubic Feet) Arkansas Natural Gas Processed in Arkansas (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2010's 5,611 6,872 7,781 8,058 7,084 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016 Referring Pages: Natural Gas Processed Arkansas-Arkansas Natural Gas Plant Processing

  4. Arkansas Natural Gas Plant Liquids Production Extracted in Arkansas

    Gasoline and Diesel Fuel Update

    (Million Cubic Feet) Extracted in Arkansas (Million Cubic Feet) Arkansas Natural Gas Plant Liquids Production Extracted in Arkansas (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2010's 582 551 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016 Referring Pages: NGPL Production, Gaseous Equivalent Arkansas-Arkansas

  5. Coal dust contiguity-induced changes in the concentration of TNF- and NF- B p65 on the ocular surface

    SciTech Connect (OSTI)

    Sun, Z.Y.; Hong, J.; Liu, Z.Y.; Jin, X.D.; Gu, C.H.

    2009-07-01

    To observe the influence of coal dust on ocular surface of coal miners and rabbits with coal dust contiguity on expression TNF- and NF- Bp65 and dry eye occurrence. Expression TNF- and NF- Bp65 in ocular surface were determined. Results showed tear production, BUT and lysozyme decreased for coal miners and rabbits with coal dust contiguity. Coal dust exposure was linked to development of xerophthalmia, and induced a higher expression of NF- B p65 and TNF- perhaps as a mechanism to resist coal dust ocular surface injury.

  6. Surface electrochemical control for fine coal and pyrite separation. Final report

    SciTech Connect (OSTI)

    Wadsworth, M.E.; Bodily, D.M.; Hu, Weibai; Chen, Wanxiong; Huang, Qinping; Liang, Jun; Riley, A.M.; Li, Jun; Wann, Jyi-Perng; Zhong, Tingke; Zhu, Ximeng

    1993-01-20

    Laboratory flotation tests were carried out on three coals and on coal pyrite. Floatability measurements included natural floatability, flotation with a xanthate collector and salt flotation. The ranking of the floatability of the three coals were: Upper Freeport > Pittsburgh > Illinois. The floatability of mineral pyrite and coal pyrite increased markedly with xanthate concentration, but decreased with increased pH. In general, coal pyrite was more difficult to float than mineral pyrite. This was attributed to the presence of surface carbonaceous and mineral matter, since floatability of coal pyrite improved by acid pretreatment. Flotation tests demonstrated that the floatability of coal and mineral pyrite was greatly enhanced by the presence of an electrolyte. Flotation was also enhanced by the addition of modifiers such as CuSO{sub 4}, Na{sub 2}S, CO{sub 2} and EDTA. Lime additions markedly reduced the floatability of coal pyrite. Enhanced floatability of coal pyrite resulted when the pyrite was anodically oxidized in a specially constructed electrochemical flotation cell Pretreatment in potential ranges previously observed for polysulfide and sulfur film formation resulted in the enhanced floatability. While interesting trends and influences, both chemical and electrochemical, markedly improved the floatability of coal, there is little hope for reverse flotation as an effective technology for coal/coal-pyrite separations. The effects of poor liberation and entrainment appear overriding.

  7. Characterization of the surface properties of Illinois basin coals. Technical report, March 1, 1992--May 31, 1992

    SciTech Connect (OSTI)

    Demir, I.; Harvey, R.D.; Lizzio, A.A.

    1992-10-01

    The main objective of this project is to characterize the surface properties (surface area, pore size distribution, surface charge, and surface chemical structure) of eight coals in the Illinois Basin Coal Sample Program (IBCSP), and explore statistical relationships between surface properties and other coal characteristics. We completed analyses of -100 and -400 mesh, unoxidized IBCSP coals for surface area and pore volume distribution. Two thirds or more of the measured surface area of the samples are derived from the micropores (3.5-20 {Angstrom}). The mesopore surface areas of IBC-101, IBC-102, and IBC-107 coals are higher than the other coals, and the mesopore surface area of the IBC-103 coal is the smallest among all the coals tested. The pore volume in pores less than about 1800 {Angstrom} in diameter varies about five-fold among the samples. The differences between the samples suggest that these coals may show different physical-chemical behavior during various processes involving preparation and utilization of coal. Statistical analyses of the measured and other available coal properties indicate that the micropore surface area correlates positively with carbon content and vitrinite reflectance and negatively with volatile matter. and hydrogen content of the coal. The mesopore surface area correlates negatively with carbon content but positively with oxygen and hydrogen contents of the coal. The statistical correlations can be used to predict one parameter from another one.

  8. Surface electrochemical control for fine coal and pyrite separation

    SciTech Connect (OSTI)

    Hu, Weibai; Huang, Qinping; Zhu, Ximeng; Li, Jun; Bodily, D.M; Zhong, Tingke; Wadsworth, M.E.

    1992-01-01

    A series of fine coal kinetic tests were carried out on three coals. It was found that the rank of flotation rates for the three coals tested were: Upper Freeport > Pittsburgh No. 8 > Illinois No. 6. In the case of Pittsburgh No. 8, the contained coal-pyrite was found to float more slowly than the coal itself when xanthate was used as the collector. In kinetic modeling, first order kinetic models produced large errors for long flotation times. It was found that a modified first order kinetic-model with slow and fast rate constants was appropriate for fine coal flotation. A log-log plot of 1(R{sub j} -R) versus t forms a straight line for the test conditions of this study. The Lai proportionality flotation model was found to apply from the start and extending over a very broad time range.

  9. Characterization of the surface properties of Illinois basin coals. Final technical report, September 1, 1991--August 31, 1992

    SciTech Connect (OSTI)

    Demir, I.; Harvey, R.D.; Lizzio, A.A.

    1992-12-31

    Surface area and pore volume distributions, surface charge, and surface chemical structure of the eight coals in the Illinois Basin Coal Sample Program (IBCSP) were determined. The IBC-101 coal has the lowest total and micropore (3.5-20.0 {Angstrom}) surface areas. The IBC-103 coal has the lowest mesopore (20-500 {Angstrom}) surface area. The mesopore surface areas of IBC-101, IBC-102, and IBC-107 coals are higher than the other four coals. Pore volume in pores <1800 {Angstrom} in diameter varies almost five-fold with IBC-103 coal having the lowest value. These differences may affect the reactivity of these coals during cleaning, conversion, and combustion processes. Surface charge and isoelectric points vary among the samples. The isoelectric point, where processes such as agglomeration and dewatering is most efficient, shifted to higher pH values for some of the samples upon exposure to air oxidation at room temperature. Diffuse reflectance infrared spectroscopy (DRIS) data indicate that the surfaces of the IBCSP coals contain aromatic hydrocarbon components, aliphatic hydrocarbons, and an aldehyde group. Ball-mill grinding reduced the organic hydroxyls and thus enriched relative concentrations of nonpolar aliphatic functional groups in the samples. The room temperature air oxidation did not cause any significant change on the surface chemical structure of the coals.

  10. Arkansas Regions | U.S. DOE Office of Science (SC)

    Office of Science (SC) [DOE]

    for your school's state, county, city, or district. For more information, please visit the Middle School Coach page. Arkansas Region Middle School Regional Arkansas Arkansas...

  11. Arkansas Regions | U.S. DOE Office of Science (SC)

    Office of Science (SC) [DOE]

    designated for your school's state, county, city, or district. For more information, please visit the High School Coach page. Arkansas Region High School Regional Arkansas Arkansas...

  12. Forrest City, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Arkansas. It falls under Arkansas's 1st congressional district.12 US Recovery Act Smart Grid Projects in Forrest City, Arkansas Woodruff Electric Smart Grid Project Utility...

  13. Pulaski County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Stephens, Inc Energy Generation Facilities in Pulaski County, Arkansas Fourche Creek Wastewater Biomass Facility Places in Pulaski County, Arkansas Alexander, Arkansas Cammack...

  14. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    0. Average Number of Employees at Underground and Surface Mines by State and Union Status, 2015 Union Nonunion Coal-Producing State and Region 1 Underground Surface Underground Surface Alabama 2,209 56 255 658 Alaska - 113 - - Arizona - 403 - - Arkansas - - 73 - Colorado 170 209 1,031 232 Illinois - - 3,746 398 Indiana - - 1,783 1,493 Kansas - - - 7 Kentucky Total 21 12 6,765 2,409 Kentucky (East) 11 12 3,653 2,032 Kentucky (West) 10 - 3,112 377 Louisiana - - - 307 Maryland - - 165 178

  15. Arkansas' Anemometer Loan Program

    SciTech Connect (OSTI)

    Fernando Vego

    2012-10-11

    The measurement campaign had one year duration from 04/01/2011 to 03/31/2012 and was taken at 20m and 34m with NRG instrumentation. The data was analyzed weekly to check inconsistencies and validity and processed using Excel, Flexpro and Windographer standard Edition Version 2.04. The site analyzed is located in the Waldron, Arkansas in Scott County. It is an open site for most of the direction sectors with immediate roughness class of 1.5. It has seasonally directional winds, of which the most energetic come from the southern direction. The vertical wind profile shows moderate wind shear that varies by season as well.

  16. Energy Incentive Programs, Arkansas | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Arkansas Energy Incentive Programs, Arkansas Updated June 2015 Arkansas utilities collectively budgeted over $80 million for energy efficiency programs in 2014. What public-purpose-funded energy efficiency programs are available in my state? Arkansas has no public-purpose-funded energy efficiency programs; however, the Arkansas Public Services Commission requires utilities to include provisions for demand-side resources through an energy efficiency resource standard (EERS). What utility energy

  17. Pyrite surface characterization and control for advanced fine coal desulfurization technologies. First annual report, September 1, 1990--August 30, 1991

    SciTech Connect (OSTI)

    Wang, Xiang-Huai

    1991-12-31

    The objective of this project is to conduct extensive studies on the surface reactivity of pyrite by using electrochemical, surface analysis, potentiometric and calorimetric titration, and surface hydrophobicity characterization techniques and to correlate the alteration of the coal-pyrite surface with the efficiency of pyrite rejection in coal flotation. The products as well as their structure, the mechanisms and the kinetics of the oxidation of coal-pyrite surfaces and their interaction with various chemical reagents will be systematically studied and compared with that of mineral-pyrite and synthetic pyrite to determine the correlation between the surface reactivity of pyrite and the bulk chemical properties of pyrite and impurities. The surface chemical studies and the studies of floatability of coal-pyrite and the effect of various parameters such as grinding media and environment, aging under different atmospheres, etc. on thereof, are directed at identifying the causes and possible solutions of the pyrite rejection problems in coal cleaning.

  18. Arkansas Nuclear Profile - Power Plants

    U.S. Energy Information Administration (EIA) (indexed site)

    net generation, 2010" "Plant nametotal reactors","Summer capacity (mw)","Net generation ...,"1,835","15,023",100.0,"Entergy Arkansas Inc" "1 Plant 2 Reactors","1,835","15,023",100.0

  19. Thermodynamics and surface structure of coals. Quarterly report, October 1, 1991--December 31, 1991

    SciTech Connect (OSTI)

    Glass, A.S.; Larsen, J.W.; Quay, D.M.; Roberts, J.E.

    1991-12-31

    NMR relaxation and shift reagents are being deposited on the surface of coals. The dipolar coupling of the unpaired electron spin of the relaxation agent and the carbon atom should significantly shorten the carbon T, which should broaden it away. We propose to record the NMR spectrum of a coal before and after deposition and subtract the spectra. The difference spectra will arise from the functionalities within approximately one nanometer of the surface and reveal the surface composition of the coal. In order to determine the surface concentration of the dysprosium in the coal, we are using x-ray photoelectron spectroscopy (XPS) also known as electron spectroscopy for chemical analysis (ESCA). XPS is a surface technique that can be used for the elucidation of chemical structure. The binding energy for each electron in each element is unique. The measurement of the binding energy in XPS allows the identification of the element and its oxidation state. The relative atomic concentrations of each element can also be determined using XPS spectra.

  20. Elaine, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Map This article is a stub. You can help OpenEI by expanding it. Elaine is a city in Phillips County, Arkansas. It falls under Arkansas's 1st congressional district.12...

  1. Adona, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Map This article is a stub. You can help OpenEI by expanding it. Adona is a city in Perry County, Arkansas. It falls under Arkansas's 2nd congressional district.12...

  2. Control of pyrite surface chemistry in physical coal cleaning. Final report

    SciTech Connect (OSTI)

    Luttrell, G.H.; Yoon, R.H.; Richardson, P.E.

    1993-05-19

    In Part I, Surface Chemistry of Coal Pyrite the mechanisms responsible for the inefficient rejection of coal pyrite were investigated using a number of experimental techniques. The test results demonstrate that the hydrophobicity of coal pyrite is related to the surface products formed during oxidation in aqueous solutions. During oxidation, a sulfur-rich surface layer is produced in near neutral pH solutions. This surface layer is composed mainly of sulfur species in the form of an iron-polysulfide along with a smaller amount of iron oxide/hydroxides. The floatability coal pyrite increases dramatically in the presence of frothers and hydrocarbon collectors. These reagents are believed to absorb on the weakly hydrophobic pyrite surfaces as a result of hydrophobic interaction forces. In Part III, Developing the Best Possible Rejection Schemes, a number of pyrite depressants were evaluated in column and conventional flotation tests. These included manganese (Mn) metal, chelating agents quinone and diethylenetriamine (DETA), and several commercially-available organic depressants. Of these, the additives which serve as reducing agents were found to be most effective. Reducing agents were used to prevent pyrite oxidation and/or remove oxidation products present on previously oxidized surfaces. These data show that Mn is a significantly stronger depressant for pyrite than quinone or DETA. Important factors in determining the pyrite depression effect of Mn include the slurry solid content during conditioning, the addition of acid (HCl), and the amount of Mn. The acid helps remove the oxide layer from the surface of Mn and promotes the depression of pyrite by Mn.

  3. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    . Coal Production and Number of Mines by State and Mine Type, 2015 and 2014 (thousand short tons) 2015 2014 Percent Change Coal-Producing State and Region 1 Number of Mines Production Number of Mines Production Number of Mines Production Alabama 37 13,191 36 16,363 2.8 -19.4 Underground 8 9,897 7 12,516 14.3 -20.9 Surface 29 3,294 29 3,847 - -14.4 Alaska 1 1,177 1 1,502 - -21.6 Surface 1 1,177 1 1,502 - -21.6 Arizona 1 6,805 1 8,051 - -15.5 Surface 1 6,805 1 8,051 - -15.5 Arkansas 2 91 2 94 -

  4. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    1. Productive Capacity of Coal Mines by State, 2015 and 2014 (thousand short tons) 2015 2014 Percent Change Coal-Producing State Underground Surface Total Underground Surface Total Underground Surface Total Alabama 10,955 4,664 15,620 13,915 5,530 19,445 -21.3 -15.7 -19.7 Alaska - 3,000 3,000 - 3,000 3,000 - - - Arizona - 8,500 8,500 - 8,500 8,500 - - - Arkansas 275 - 275 240 - 240 14.6 - 14.6 Colorado 20,622 6,218 26,841 23,200 6,642 29,842 -11.1 -6.4 -10.1 Illinois 69,975 7,390 77,365 68,336

  5. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    7. Coal Production by State, Mine Type, and Union Status, 2015 (thousand short tons) Union Nonunion Total Coal-Producing State and Region 1 Underground Surface Underground Surface Underground Surface Alabama 9,478 251 419 2,982 9,897 3,233 Alaska - 1,177 - - - 1,177 Arizona - 6,805 - - - 6,805 Arkansas - - 91 - 91 - Colorado 2,106 2,357 11,035 3,380 13,141 5,738 Illinois - - 51,973 4,103 51,973 4,103 Indiana - - 15,586 18,688 15,586 18,688 Kansas - - - 199 - 199 Kentucky Total - - 43,269 17,557

  6. Arkansas Nuclear Profile - Power Plants

    U.S. Energy Information Administration (EIA) (indexed site)

    nuclear power plants, summer capacity and net generation, 2010" "Plant name/total reactors","Summer capacity (mw)","Net generation (thousand mwh)","Share of State nuclear net generation (percent)","Owner" "Arkansas Nuclear One Unit 1, Unit 2","1,835","15,023",100.0,"Entergy Arkansas Inc" "1 Plant 2 Reactors","1,835","15,023",100.0

  7. Arkansas Total Electric Power Industry Net Generation, by Energy Source

    U.S. Energy Information Administration (EIA) (indexed site)

    Arkansas" "Energy Source",2006,2007,2008,2009,2010 "Fossil",33626,34203,34639,36385,40667 " Coal",24183,25744,26115,25075,28152 " Petroleum",161,94,64,88,45 " Natural Gas",9282,8364,8461,11221,12469 " Other Gases","-","-","-","-","-" "Nuclear",15233,15486,14168,15170,15023 "Renewables",3273,4860,6173,5778,5283 "Pumped Storage",15,30,48,100,-1

  8. Tectonic origin of Crowley's Ridge, northeastern Arkansas

    SciTech Connect (OSTI)

    VanArsdale, R.B. (Univ. of Arkansas, Fayetteville, AR (United States). Geology Dept.); Williams, R.A.; Shedlock, K.M.; King, K.W.; Odum, J.K. (Geological survey, Denver, CO (United States). Denver Federal Center); Schweig, E.S. III; Kanter, L.R. (Memphis State Univ., TN (United States))

    1992-01-01

    Crowley's Ridge is a 320 km long topographic ridge that extends from Thebes, Illinois to Helena, Arkansas. The ridge has been interpreted as an erosional remnant formed during Quaternary incision of the ancestral Mississippi and Ohio rivers; however, the Reelfoot Rift COCORP line identified a down-to-the-west fault bounding the western margin of Crowley's Ridge south of Jonesboro, Arkansas. Subsequent Mini-Sosie seismic reflection profiles confirmed the COCORP data and identified additional faults beneath other margins of the ridge. In each case the faults lie beneath the base of the ridge scarp. The Mini-Sosie data did not resolve the uppermost 150 m and so it was not possible to determine if the faults displace the near-surface Claiborne Group (middle Eocene). A shotgun source seismic reflection survey was subsequently conducted to image the uppermost 250 m across the faulted margins. The shotgun survey across the western margin of the ridge south of Jonesboro reveals displaced reflectors as shallow as 30 m depth. Claiborne Group strata are displaced approximately 6 m and it appears that some of the topographic relief of Crowley's Ridge at this location is due to post middle Eocene fault displacement. Based on the reflection data, the authors suggest that Crowley's Ridge is tectonic in origin.

  9. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    2. Capacity Utilization of Coal Mines by State, 2015 and 2014 (percent) 2015 2014 Coal-Producing State Underground Surface Total Underground Surface Total Alabama 90.34 69.67 84.17 89.95 68.96 83.98 Alaska - 39.25 39.25 - 50.06 50.06 Arizona - 80.05 80.05 - 94.71 94.71 Arkansas 33.19 - 33.19 36.25 - 36.25 Colorado 63.72 92.27 70.34 78.07 88.60 80.42 Illinois 74.27 55.83 72.51 77.14 65.64 75.93 Indiana 72.83 77.45 75.28 85.68 74.83 79.47 Kansas - 95.31 95.31 - 76.77 76.77 Kentucky Total 81.28

  10. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    4. Coal Mining Productivity by State, Mine Type, and Union Status, 2015 (short tons produced per employee hour) Union Nonunion Coal-Producing State and Region 1 Underground Surface Underground Surface Alabama 1.75 2.52 0.64 1.90 Alaska - 4.62 - - Arizona - 6.97 - - Arkansas - - 0.56 - Colorado 5.72 5.71 5.12 7.18 Illinois - - 6.24 4.69 Indiana - - 3.72 5.21 Kansas - - - 12.26 Kentucky Total - - 2.78 3.52 Kentucky (East) - - 1.84 3.11 Kentucky (West) - - 3.76 5.65 Louisiana - - - 5.23 Maryland -

  11. Pyrite surface characterization and control for advanced fine coal desulfurization technologies. Eighth quarterly technical progress report, June 1, 1992--August 31, 1992

    SciTech Connect (OSTI)

    Wang, X.H.; Leonard, J.W.; Parekh, B.K.; Raichur, A.M.; Jiang, C.L.

    1992-12-01

    The objective of the project is to conduct extensive fundamental studies on the surface reactivity and surface hydrophobicity of coal-pyrites using various surface characterization techniques and to understand how the alteration of the coal-pyrite surface affects the efficiency of pyrite rejection in coal flotation. During this reporting period, the influence of the impurity content, particularly coal/carbon content, on the electrochemical oxidation of pyrite surfaces was investigated. The studies demonstrate that the coal/carbon content in coal-pyrite has a determining effect on the surface reactivity of pyrite. The oxidation behavior of high carbon-content coal-pyrite is completely different from that of purer coal-pyrite and ore-pyrite. The effects of flotation gases on the flotation behavior of coal and the surface hydrophobicity of various coal-pyrite were investigated. It was found from the lab-scale column flotation studies that among the various gases studied (air, oxygen, argon, nitrogen and carbon dioxide), carbon dioxide produced the best results with a combustible recovery of 90% and ash-content of less than 9 percent. Finally, the surface energetic studies revealed that the surfaces of pyrites and coals produced by wet grinding is more heterogenous than that prepared by dry grinding.

  12. Arkansas SoyEnergy Group | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    SoyEnergy Group Jump to: navigation, search Name: Arkansas SoyEnergy Group Place: DeWitt, Arkansas Zip: 72042 Product: Arkansas SoyEnergy Group is a soybean crushing and biodiesel...

  13. Novel Surface Modification Method for Ultrasupercritical Coal-Fired Boilers

    SciTech Connect (OSTI)

    Xiao, T. Danny

    2013-05-22

    US Department of Energy seeks an innovative coating technology for energy production to reduce the emission of SOx, NOx, and CO2 toxic gaseous species. To realize this need, Inframat Corporation (├ó┬?┬?IMC├ó┬?┬Ł) proposed an SPS thermal spray coating technique to produce ultrafine/nanocoatings that can be deposited onto the surfaces of high temperature boiler tubes, so that higher temperatures of boiler operation becomes possible, leading to significantly reduced emission of toxic gaseous species. It should be noted that the original PI was Dr. Xinqing Ma, who after 1.5 year conducting this project left Inframat in December, 2008. Thus, the PI was transferred to Dr. Danny Xiao, who originally co-authored the proposal with Dr. Ma, in order to carry the project into a completion. Phase II Objectives: The proposed technology has the following attributes, including: (1). Dispersion of a nanoparticle or alloyed particle in a solvent to form a uniform slurry feedstock; (2). Feeding of the slurry feedstock into a thermal spray flame, followed by deposition of the slurry feedstock onto substrates to form tenacious nanocoatings; (3). High coating performance: including high bonding strength, and high temperature service life in the temperature range of 760oC/1400oF. Following the above premises, our past Phase I project has demonstrated the feasibility in small scale coatings on boiler substrates. The objective of this Phase II project was to focus on scale-up the already demonstrated Phase I work for the fabrication of SPS coatings that can satisfy DOE├ó┬?┬?s emission reduction goals for energy production operations. Specifically, they are: (1). Solving engineering problems to scale-up the SPS-HVOF delivery system to a prototype production sub-delivery system; (2). Produce ultrafine/nanocoatings using the scale-up prototype system; (3). Demonstrate the coated components using the scale-up device having superior properties. Proposed Phase II Tasks: In the original Phase II

  14. Arkansas's 3rd congressional district: Energy Resources | Open...

    Open Energy Information (Open El) [EERE & EIA]

    Registered Energy Companies in Arkansas's 3rd congressional district Appro-Tec Renewable Energy Highline Hydrogen Hybrids Utility Companies in Arkansas's 3rd congressional...

  15. City of Hope, Arkansas (Utility Company) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Arkansas (Utility Company) Jump to: navigation, search Name: City of Hope Address: 105 N. Elm St. Place: Hope, AR Zip: 71801 Service Territory: Arkansas Phone Number:...

  16. Arkansas's 4th congressional district: Energy Resources | Open...

    Open Energy Information (Open El) [EERE & EIA]

    Biofuels Inc Utility Companies in Arkansas's 4th congressional district City of Hope, Arkansas (Utility Company) Retrieved from "http:en.openei.orgw...

  17. Garland County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Zone Subtype A. Registered Energy Companies in Garland County, Arkansas PRM Energy Phoenix Renewable Energy Phoenix Biomass Places in Garland County, Arkansas Fountain Lake,...

  18. Arkansas Oil and Gas Commission | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Oil and Gas Commission Jump to: navigation, search Name: Arkansas Oil and Gas Commission Address: 301 Natural Resources Dr. Ste 102 Place: Arkansas Zip: 72205 Website:...

  19. Arkansas's 1st congressional district: Energy Resources | Open...

    Open Energy Information (Open El) [EERE & EIA]

    Act Smart Grid Projects in Arkansas's 1st congressional district Woodruff Electric Smart Grid Project Utility Companies in Arkansas's 1st congressional district City Water...

  20. Georgia and Arkansas Residential Energy Code Field Studies |...

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Georgia and Arkansas Residential Energy Code Field Studies Georgia and Arkansas Residential Energy Code Field Studies Lead Performer: Southeast Energy Efficiency Alliance - ...

  1. Categorical Exclusion Determinations: Arkansas | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Arkansas Categorical Exclusion Determinations: Arkansas Location Categorical Exclusion Determinations issued for actions in Arkansas. DOCUMENTS AVAILABLE FOR DOWNLOAD September 7, 2016 CX-100719 Categorical Exclusion Determination High-Performance Self-Cleaning, Antireflective, and Anti-fog Coating for PV Glass to Increase Module Output and Decrease BOS Costs Award Number: DE-EE0007582 CX(s) Applied: A9, B3.6 Solar Energy Technologies Office Date: 8/22/2016 Location(s): AR Office(s): Golden

  2. ,"Arkansas Natural Gas LNG Storage Withdrawals (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Natural Gas LNG Storage Withdrawals (MMcf)",1,"Annual",2014 ,"Release Date:","9302015" ,"Next Release...

  3. ,"Arkansas Natural Gas LNG Storage Additions (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Natural Gas LNG Storage Additions (MMcf)",1,"Annual",2014 ,"Release Date:","9302015" ,"Next Release...

  4. ARKANSAS RECOVERY ACT SNAPSHOT | Department of Energy

    Energy.gov (indexed) [DOE]

    The American Recovery & Reinvestment Act (ARRA) is making a meaningful down payment on the nation's energy and environmental future. The Recovery Act investments in Arkansas are ...

  5. Arkansas Natural Gas Gross Withdrawals and Production

    U.S. Energy Information Administration (EIA) (indexed site)

    U.S. Offshore U.S. State Offshore Federal Offshore U.S. Alaska Alaska Onshore Alaska Offshore Alaska State Offshore Arkansas California California Onshore California Offshore ...

  6. Scott, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Scott, Arkansas: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 34.6964808, -92.0962552 Show Map Loading map... "minzoom":false,"mappingservic...

  7. Clean Cities: Arkansas Clean Cities coalition

    Alternative Fuels and Advanced Vehicles Data Center

    Arkansas by using alternate modes of transportation. She is also a member of the Saline Green Committee that increases awareness of the importance of reducing Saline County's...

  8. Arkansas Oklahoma Gas (AOG) Residential Rebate Program

    Energy.gov [DOE]

    Arkansas Oklahoma Gas (AOG) provides financial incentives to its residential and small commercial customers for both existing and new construction homes and small business whose primary fuel for...

  9. Arkansas/Wind Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Guidebook >> Arkansas Wind Resources WindTurbine-icon.png Small Wind Guidebook * Introduction * First, How Can I Make My Home More Energy Efficient? * Is Wind Energy Practical...

  10. ,"Arkansas Underground Natural Gas Storage - All Operators"

    U.S. Energy Information Administration (EIA) (indexed site)

    ...282016 11:29:28 AM" "Back to Contents","Data 1: Total Underground Storage" ... Natural Gas in Underground Storage (Base Gas) (MMcf)","Arkansas Natural Gas in ...

  11. Recovery Act State Memos Arkansas

    Energy.gov (indexed) [DOE]

    Arkansas For questions about DOE's Recovery Act activities, please contact the DOE Recovery Act Clearinghouse: 1-888-DOE-RCVY (888-363-7289), Monday through Friday, 9 a.m. to 7 p.m. Eastern Time https://recoveryclearinghouse.energy.gov/contactUs.htm. All numbers and projects listed as of June 1, 2010 TABLE OF CONTENTS RECOVERY ACT SNAPSHOT................................................................................... 1 FUNDING ALLOCATION

  12. Identification of sediment sources in forested watersheds with surface coal mining disturbance using carbon and nitrogen isotopes

    SciTech Connect (OSTI)

    Fox, J.F.

    2009-10-15

    Sediments and soils were analyzed using stable carbon and nitrogen isotope ratio mass spectrometry and carbon and nitrogen elemental analyses to evaluate the their ability to indicate land-use and land management disturbance and pinpoint loading from sediment transport sources in forested watersheds disturbed by surface coal mining. Samples of transported sediment particulate organic matter were collected from four watersheds in the Southern Appalachian forest in Kentucky. The four watersheds had different surface coal mining history that were classified as undisturbed, active mining, and reclaimed conditions. Soil samples were analyzed including reclaimed grassland soils, undisturbed forest soils, geogenic organic matter associated with coal fragments in mining spoil, and soil organic matter from un-mined grassland soils. Statistically significant differences were found for all biogeochemical signatures when comparing transported sediments from undisturbed watersheds and surface coal mining disturbed watersheds and the results were attributed to differences in erosion sources and the presence of geogenic organic matter. Sediment transport sources in the surface coal mining watersheds analyzed using Monte Carlo mass balance un-mixing found that: {delta}{sup 15}N showed the ability to differentiate streambank erosion and surface soil erosion; and {delta} {sup 13}C showed the ability to differentiate soil organic matter and geogenic organic matter. This suggests that streambank erosion downstream of surface coal mining sites is a significant source of sediment in coal mining disturbed watersheds. The results suggest that the sediment transport processes governing streambank erosion loads are taking longer to reach geomorphologic equilibrium in the watershed as compared with the surface erosion processes.

  13. Surface coal mining in Alaska: an investigation of the Surface Mining Control and Reclamation Act of 1977 in relation to Alaskan conditions. Final report

    SciTech Connect (OSTI)

    Not Available

    1980-01-01

    This report was written in response to a mandate in section 708 of the Surface Mining Control and Reclamation Act of 1977 which required the study of surface coal mining conditions in the State of Alaska, in order to determine which, if any, of the provisions of the Act should be modified with respect to surface coal mining operations in Alaska. The report discusses both surface mining and the surface effects of underground mining. The report examines not only the impact of mining at the site of operations but also the effects that extend beyond the mine itself, including effects on social institutions, the economy, the physical well-being of people, and the use of land. The report considers Alaska conditions primarily from the perspective of a potential increase in coal development, not of mining limited to meeting local needs of energy.

  14. Arkansas Regional High Science Bowl | U.S. DOE Office of Science...

    Office of Science (SC) [DOE]

    ...a Hosted by: University of Arkansas-Fort Smith States andor Counties Served Arkansas ... Competition Location University of Arkansas-Fort Smith 5210 Grand Avenue Math-Science ...

  15. Pyrite surface characterization and control for advanced fine coal desulfurization technologies. Fourth quarterly technical progress report, June 1, 1991--August 31, 1991

    SciTech Connect (OSTI)

    Wang, Xiang-Huai

    1991-12-31

    The objective of this project is to conduct extensive studies on the surfaces reactivity of pyrite by using electrochemical, surface analysis, potentiometric and calorimetric titration, and surface hydrophobicity characterization techniques and to correlate the alteration of the coal-pyrite surface with the efficiency of the pyrite rejection in coal flotation. The product as well as their structure, the mechanism and the kinetics of the oxidation of coal-pyrite surfaces and their interaction with various chemical reagents will be systematically studied and compared with that of mineral-pyrite and synthetic pyrite to determine the correlation between the surface reactivity of pyrite and the bulk chemical properties of pyrite and impurities. The surface chemical studies and the studies of floatability of coal-pyrite and the effect of various parameters such as grinding media and environment, aging under different atmospheres, etc., are directed at identifying the cause and possible solutions of the pyrite rejection problems in coal cleaning.

  16. Pyrite surface characterization and control for advanced fine coal desulfurization technologies. Third quarterly technical progress report, March 1, 1991--May 30, 1991

    SciTech Connect (OSTI)

    Wang, Xiang-Huai; Leonard, J.W.; Parekh, B.K.; Raichur, A.M.; Jiang, Chengliang

    1991-12-31

    The objective of this project is to conduct extensive studies on the surface reactivity of pyrite by using electrochemical, surface analysis, potentiometric and calorimetric titration, and surface hydrophobicity characterization techniques and to correlate the alteration of the coal-pyrite surface with the efficiency of pyrite rejection in coal flotation. The products as well as their structure, the mechanisms and the kinetics of the oxidation of coal-pyrite surfaces and their interaction with various chemical reagents will be systematically studied and compared with that of mineral-pyrite and synthetic pyrite to determine the correlation between the surface reactivity of pyrite and the bulk chemical properties of pyrite and impurities. The surface chemical studies and the studies of floatability of coal-pyrite and the effect of various parameters such as grinding media and environment, aging under different atmospheres, etc. on thereof will lead to identifying the causes and possible solutions of the pyrite rejection problems in coal cleaning.

  17. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    8. Average Number of Employees by State and Mine Type, 2015 and 2014 2015 2014 Percent Change Coal-Producing State and Region 1 Underground Surface Total Underground Surface Total Underground Surface Total Alabama 2,464 748 3,212 2,852 842 3,694 -13.6 -11.2 -13.0 Alaska - 113 113 - 120 120 - -5.8 -5.8 Arizona - 403 403 - 387 387 - 4.1 4.1 Arkansas 73 2 75 82 2 84 -11.0 - -10.7 Colorado 1,201 441 1,642 1,372 450 1,822 -12.5 -2.0 -9.9 Illinois 3,746 400 4,146 3,772 446 4,218 -0.7 -10.3 -1.7

  18. New EPA Guidelines for Review of Surface Coal Mining Operations in Appalachia (released in AEO2010)

    Reports and Publications

    2010-01-01

    On April 1, 2010, the Environmental Protection Agency (EPA) issued a set of new guidelines to several of its Regional offices regarding the compliance of surface coal mining operations in Appalachia with the provisions of the Clean Water Act (CWA), the National Environmental Policy Act, and the environmental justice Executive Order (E.O. 12898). The stated purpose of the guidance was to explain more fully the approach that the EPA will be following in permit reviews, and to provide additional assurance that its Regional offices use clear, consistent, and science-based standards in reviewing the permits. Although the new guidelines go into effect immediately, they will be subjected to review both by the public and by the EPA's Science Advisory Board, with a set of final guidelines to be issued no later than April 1, 2011.

  19. Proceedings of Office of Surface Mining Coal Combustion By-product Government/Regulatory Panel: University of Kentucky international ash utilization symposium

    SciTech Connect (OSTI)

    Vories, K.C.

    2003-07-01

    Short papers are given on: the Coal Combustion Program (C2P2) (J. Glenn); regional environmental concerns with disposal of coal combustion wastes at mines (T. FitzGerald); power plant waste mine filling - an environmental perspective (L.G. Evans); utility industry perspective regarding coal combustion product management and regulation (J. Roewer); coal combustion products opportunities for beneficial use (D.C. Goss); state perspective on mine placement of coal combustion by-products (G.E. Conrad); Texas regulations provide for beneficial use of coal combustion ash (S.S. Ferguson); and the Surface Mining Control and Reclamation Act - a response to concerns about placement of CCBs at coal mine sites (K.C. Vories). The questions and answers are also included.

  20. ,"Arkansas Natural Gas Gross Withdrawals and Production"

    U.S. Energy Information Administration (EIA) (indexed site)

    ,,"(202) 586-8800",,,"10072016 7:57:22 AM" "Back to Contents","Data 1: Arkansas Natural Gas Gross Withdrawals and Production" "Sourcekey","N9010AR2","N9011AR2","N9012AR2","NGME...

  1. Arkansas Shale Production (Billion Cubic Feet)

    Gasoline and Diesel Fuel Update

    Production (Billion Cubic Feet) Arkansas Shale Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 94 279 527 2010's...

  2. Arkansas Shale Proved Reserves (Billion Cubic Feet)

    Gasoline and Diesel Fuel Update

    Proved Reserves (Billion Cubic Feet) Arkansas Shale Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 1,460...

  3. ,"Arkansas Natural Gas Gross Withdrawals and Production"

    U.S. Energy Information Administration (EIA) (indexed site)

    ,,"(202) 586-8800",,,"08292016 11:11:29 AM" "Back to Contents","Data 1: Arkansas Natural Gas Gross Withdrawals and Production" "Sourcekey","N9010AR2","N9011AR2","N9012AR2","NGME...

  4. Coal combustion waste management at landfills and surface impoundments 1994-2004.

    SciTech Connect (OSTI)

    Elcock, D.; Ranek, N. L.; Environmental Science Division

    2006-09-08

    On May 22, 2000, as required by Congress in its 1980 Amendments to the Resource Conservation and Recovery Act (RCRA), the U.S. Environmental Protection Agency (EPA) issued a Regulatory Determination on Wastes from the Combustion of Fossil Fuels. On the basis of information contained in its 1999 Report to Congress: Wastes from the Combustion of Fossil Fuels, the EPA concluded that coal combustion wastes (CCWs), also known as coal combustion by-products (CCBs), did not warrant regulation under Subtitle C of RCRA, and it retained the existing hazardous waste exemption for these materials under RCRA Section 3001(b)(3)(C). However, the EPA also determined that national regulations under Subtitle D of RCRA were warranted for CCWs that are disposed of in landfills or surface impoundments. The EPA made this determination in part on the basis of its findings that 'present disposal practices are such that, in 1995, these wastes were being managed in 40 percent to 70 percent of landfills and surface impoundments without reasonable controls in place, particularly in the area of groundwater monitoring; and while there have been substantive improvements in state regulatory programs, we have also identified gaps in State oversight' (EPA 2000). The 1999 Report to Congress (RTC), however, may not have reflected the changes in CCW disposal practices that occurred since the cutoff date (1995) of its database and subsequent developments. The U.S. Department of Energy (DOE) and the EPA discussed this issue and decided to conduct a joint DOE/EPA study to collect new information on the recent CCW management practices by the power industry. It was agreed that such information would provide a perspective on the chronological adoption of control measures in CCW units based on State regulations. A team of experts from the EPA, industry, and DOE (with support from Argonne National Laboratory) was established to develop a mutually acceptable approach for collecting and analyzing data on CCW

  5. ,"Arkansas Natural Gas Gross Withdrawals from Shale Gas (Million...

    U.S. Energy Information Administration (EIA) (indexed site)

    7:59:58 AM" "Back to Contents","Data 1: Arkansas Natural Gas Gross Withdrawals from Shale Gas (Million Cubic Feet)" "Sourcekey","NGMEPG0FGSSARMMCF" "Date","Arkansas Natural Gas ...

  6. Alternative Fuels Data Center: Arkansas Launches Natural Gas...

    Alternative Fuels and Advanced Vehicles Data Center

    Arkansas Launches Natural Gas-Powered Buses and Refueling Station to someone by E-mail Share Alternative Fuels Data Center: Arkansas Launches Natural Gas-Powered Buses and ...

  7. Siloam Springs, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Siloam Springs is a city in Benton County, Arkansas. It falls under Arkansas's 3rd congressional...

  8. Arkansas Recovery Act State Memo | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Arkansas Recovery Act State Memo Arkansas Recovery Act State Memo Arkansas has substantial natural resources, including gas, oil, wind, biomass, and hydroelectric power. The American Recovery & Reinvestment Act (ARRA) is making a meaningful down payment on the nation's energy and environmental future. The Recovery Act investments in Arkansas are supporting a broad range of clean energy projects, from energy efficiency and the smart grid to advanced battery manufacturing and renewable energy.

  9. Surface runoff from full-scale coal combustion product pavements during accelerated loading

    SciTech Connect (OSTI)

    Cheng, C.M.; Taerakul, P.; Tu, W.; Zand, B.; Butalia, T.; Wolfe, W.; Walker, H.

    2008-08-15

    In this study, the release of metals and metalloids from full-scale portland cement concrete pavements containing coal combustion products (CCPs) was evaluated by laboratory leaching tests and accelerated loading of full-scale pavement sections under well-controlled conditions. An equivalent of 20 years of highway traffic loading was simulated at the OSU/OU Accelerated Pavement Load Facility (APLF). Three types of portland cement concrete driving surface layers were tested, including a control section (i.e., ordinary portland cement (PC) concrete) containing no fly ash and two sections in which fly ash was substituted for a fraction of the cement; i.e., 30% fly ash (FA30) and 50% fly ash (FA50). In general, the concentrations of minor and trace elements were higher in the toxicity characteristic leaching procedure (TCLP) leachates than in the leachates obtained from synthetic precipitation leaching procedure and ASTM leaching procedures. Importantly, none of the leachate concentrations exceeded the TCLP limits or primary drinking water standards. Surface runoff monitoring results showed the highest release rates of inorganic elements from the FA50 concrete pavement, whereas there were little differences in release rates between PC and FA30 concretes. The release of elements generally decreased with increasing pavement loading. Except for Cr, elements were released as particulates (>0.45 {mu} m) rather than dissolved constituents. The incorporation of fly ash in the PC cement concrete pavements examined in this study resulted in little or no deleterious environmental impact from the leaching of inorganic elements over the lifetime of the pavement system.

  10. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    4. Recoverable Coal Reserves and Average Recovery Percentage at Producing Mines by State, 2015 and 2014 (million short tons) 2015 2014 Coal-Producing State Recoverable Coal Reserves Average Recovery Percentage Recoverable Coal Reserves Average Recovery Percentage Percent Change Recoverable Coal Reserves Alabama 228 49.57 228 46.00 -0.2 Alaska 51 85.00 53 85.00 -2.2 Arizona 209 90.00 216 90.00 -3.2 Arkansas 25 60.00 25 60.00 s Colorado 298 77.52 333 76.35 -10.6 Illinois 2,435 54.85 2,463 59.16

  11. Arkansas Coalbed Methane Production (Billion Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Production (Billion Cubic Feet) Arkansas Coalbed Methane Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 2 3 3 3 3 2010's 3 4 2 2 2 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Coalbed Methane Estimated Production Arkansas Coalbed Methane Proved Reserves, Reserves Changes, and

  12. Western surface mine permitting and reclamation. Volume 2. Contractor documents. Part B. Hydrologic evaluation and reclamation technologies for western surface coal mining

    SciTech Connect (OSTI)

    Not Available

    1986-07-01

    The report presents an analysis of the hydrologic evaluation and reclamation technologies of western surface coal mining as they have evolved and advanced since passage of the Federal Surface Mine Control and Reclamation Act of 1977 (SMCRA). The primary emphasis of the report is threefold, addressing: Hydrologic data used in the preparation and review of mining and reclamation plans. Analytical techniques used to predict and evaluate the hydrologic impacts of mining. Evaluation criteria used to determine the success of hydrologic restoration. The report also discusses special reclamation practices used to preserve and restore the essential hydrologic functions of alluvial valley floors.

  13. Arkansas Total Electric Power Industry Net Summer Capacity, by Energy Source

    U.S. Energy Information Administration (EIA) (indexed site)

    Arkansas" "Energy Source",2006,2007,2008,2009,2010 "Fossil",10965,11807,11756,11753,12451 " Coal",3846,3846,3861,3864,4535 " Petroleum",23,22,22,22,22 " Natural Gas",7096,7939,7873,7867,7894 " Other Gases","-","-","-","-","-" "Nuclear",1824,1838,1839,1835,1835 "Renewables",1691,1623,1643,1659,1667 "Pumped Storage",28,28,28,28,28

  14. Coal-Producing Region

    U.S. Energy Information Administration (EIA) (indexed site)

    . Coal Production by State (thousand short tons) Year to Date Coal-Producing Region and State April - June 2016 January - March 2016 April - June 2015 2016 2015 Percent Change Alabama 2,223 2,446 3,504 4,669 7,561 -38.2 Alaska 228 310 345 538 610 -11.9 Arizona 1,235 1,335 1,912 2,569 3,667 -29.9 Arkansas 15 11 27 27 48 -44.9 Colorado 3,081 2,482 5,078 5,564 10,341 -46.2 Illinois 11,125 11,312 13,391 22,437 30,221 -25.8 Indiana 6,963 7,224 8,577 14,187 18,040 -21.4 Kansas - 27 49 27 102 -73.9

  15. Arkansas Nuclear Profile - All Fuels

    U.S. Energy Information Administration (EIA) (indexed site)

    total electric power industry, summer capacity and net generation, by energy source, 2010" "Primary energy source","Summer capacity (mw)","Share of State total (percent)","Net generation (thousand mwh)","Share of State total (percent)" "Nuclear","1,835",11.5,"15,023",24.6 "Coal","4,535",28.4,"28,152",46.2 "Hydro and Pumped

  16. Considerations for modeling small-particulate impacts from surface coal-mining operations based on wind-tunnel simulations

    SciTech Connect (OSTI)

    Perry, S.G.; Petersen, W.B.; Thompson, R.S.

    1994-12-31

    The Clean Air Act Amendments of 1990 provide for a reexamination of the current Environmental Protection Agency`s (USEPA) methods for modeling fugitive particulate (PM10) from open-pit, surface coal mines. The Industrial Source Complex Model (ISCST2) is specifically named as the method that needs further study. Title II, Part B, Section 234 of the Amendments states that {open_quotes}...the Administrator shall analyze the accuracy of such model and emission factors and make revisions as may be necessary to eliminate any significant over-predictions of air quality effect of fugitive particulate emissions from such sources.{close_quotes}

  17. Arkansas Regional Middle School Science Bowl | U.S. DOE Office...

    Office of Science (SC) [DOE]

    Competition Location Math and Science Building University of Arkansas - Fort Smith 5120 Grand Avenue Fort Smith, Arkansas 72913 Regional Contact Information Regional Coordinator: ...

  18. Georgia and Arkansas Residential Energy Code Field Studies | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Georgia and Arkansas Residential Energy Code Field Studies Georgia and Arkansas Residential Energy Code Field Studies Lead Performer: Southeast Energy Efficiency Alliance - Atlanta, GA Partners: - Advanced Energy - Raleigh, NC - Arkansas Economic Development Commission, Energy Office - Little Rock, AR - Georgia Department of Community Affairs - Atlanta, GA - Georgia Environmental Finance Authority - Atlanta, GA - Southface - Atlanta, GA DOE Total Funding: $1,399,999 Cost Share:

  19. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    3. Productive Capacity and Capacity Utilization of Underground Coal Mines by State and Mining Method, 2015 (thousand short tons) Continuous 1 Conventional and Other 2 Longwall 3 Total Coal-Producing State Productive Capacity Capacity Utilization Percent Productive Capacity Capacity Utilization Percent Productive Capacity Capacity Utilization Percent Productive Capacity Capacity Utilization Percent Alabama 509 82.44 - - 10,447 90.73 10,955 90.34 Arkansas 275 33.19 - - - - 275 33.19 Colorado 1,000

  20. North Arkansas Electric Cooperative, Inc- Residential Energy Efficiency Loan Program

    Energy.gov [DOE]

    North Arkansas Electric Cooperative (NAEC), a Touchstone Energy Cooperative, serves approximately 35,000 member accounts in seven different counties. The coop provides low interest rates for energy...

  1. Alternative Fuels Data Center: Arkansas Transportation Data for...

    Alternative Fuels and Advanced Vehicles Data Center

    Vehicle Definition Biodiesel Use Requirement Data Download Fueling Stations 173 stations in Arkansas with alternative fuels Fuel Public Private Biodiesel (B20 and above) 2 3 ...

  2. Smart Meter Investments Support Rural Economy in Arkansas

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    (Woodruff) serves customers in seven eastern Arkansas counties. The proportion of residents living in poverty in those counties is more than double the national average. ...

  3. Scott County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Scott County, Arkansas: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 34.8854732, -93.9878427 Show Map Loading map... "minzoom":false,"mappin...

  4. Clay County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Arkansas: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 36.3492244, -90.3748354 Show Map Loading map... "minzoom":false,"mappingservice":"goo...

  5. Hot Springs, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Springs, Arkansas: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 34.5037004, -93.0551795 Show Map Loading map... "minzoom":false,"mappingserv...

  6. Polk County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Polk County, Arkansas: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 34.5268097, -94.1513764 Show Map Loading map... "minzoom":false,"mapping...

  7. Arkansas Natural Gas Underground Storage Net Withdrawals (Million...

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Underground Storage Net Withdrawals (Million Cubic Feet) Arkansas Natural Gas Underground Storage Net Withdrawals (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct...

  8. ,"Arkansas Natural Gas Underground Storage Net Withdrawals (MMcf...

    U.S. Energy Information Administration (EIA) (indexed site)

    Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Natural Gas Underground Storage Net Withdrawals (MMcf)",1,"Monthly","102015" ,"Release...

  9. Hot Spring County, Arkansas: Energy Resources | Open Energy Informatio...

    Open Energy Information (Open El) [EERE & EIA]

    Spring County, Arkansas: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 34.3393795, -92.9775558 Show Map Loading map... "minzoom":false,"mappi...

  10. Faulkner County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Faulkner County, Arkansas: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 35.1035858, -92.3813621 Show Map Loading map... "minzoom":false,"map...

  11. Arkansas Crude Oil + Lease Condensate Proved Reserves (Million...

    U.S. Energy Information Administration (EIA) (indexed site)

    Arkansas Crude Oil + Lease Condensate Proved Reserves (Million Barrels) Decade Year-0 ... Release Date: 11192015 Next Release Date: 12312016 Referring Pages: Crude Oil plus ...

  12. Arkansas's 2nd congressional district: Energy Resources | Open...

    Open Energy Information (Open El) [EERE & EIA]

    Registered Energy Companies in Arkansas's 2nd congressional district North American Green Power,LLC Patriot BioFuels Solar Energy Squared, LLC Registered Financial...

  13. Department of the Interior's Office of Surface Mining should more fully recover or eliminate its costs of regulating coal mining

    SciTech Connect (OSTI)

    Not Available

    1985-05-28

    The Department of the Interior's Office of Surface Mining Reclamation and Enforcement (OSM) is spending about $65 million annually to implement regulatory program requirements of the Surface Mining Control and Reclamation Act of 1977. The act requires the regulatory authority, whether OSM or that of a state with an OSM-approved program, to charge fees to mining operators for reviewing, enforcing, and administering coal mine operating permits and authorizes that the amount of such fees can fully recover costs. The OSM and states assess certain fees, but the fees recover only a small portion of their program costs. GAO found that if OSM and states fully recovered their regulatory costs, OSM could save over $50 million a year and the impact on coal demand and production would be minimal. GAO recommends that the Secretary of the Interior collect fees that fully recover OSM's regulatory costs, phase out or substantially reduce financial assistance to states, and encourage states to fully recover their own costs.

  14. Pelletization of fine coals

    SciTech Connect (OSTI)

    Sastry, K.V.S.

    1991-09-01

    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).

  15. Economic assessment of the impact on coal production due to enforcement of the Surface Mining Control and Reclamation Act of 1977. Cost report. Final report

    SciTech Connect (OSTI)

    Not Available

    1980-11-12

    The report summarizes the efforts made in the cost analysis portion of the 'Economic Assessment of the Impact on Coal Production Due to Enforcement of the Surface Mining Control and Reclamation Act (SMCRA) of 1977. The objective of the cost analysis portion of the study was to supplement the study's examination of the benefits of SMCRA with an analysis of the costs of SMCRA as based on industry experience and data. The analysis involved the development and field test of a methodology for constructing estimates of the costs of complying with regulations at individual surface coal mines.

  16. Ergonomics - Using Ergonomics to Enhance Safe Production at a Surface Coal Mine - A Case Study with Powder Crews

    SciTech Connect (OSTI)

    Torma-Krajewski, J.; Wiehagen, W.; Etcheverry, A.; Turin, F.; Unger, R.

    2009-07-01

    Job tasks that involve exposure to work-related musculoskeletal disorder (WMSD) risk factors may impact both the risk of injury and production downtime. Common WMSD risks factors associated with mining tasks include forceful exertions, awkward postures, repetitive motion, jolting and jarring, forceful gripping, contact stress, and whole body and segmental vibration. Mining environments that expose workers to temperature/humidity extremes, windy conditions, and slippery and uneven walking surfaces also contribute to injury risk. National Institute for Occupational Safety and Health (NIOSH) researchers worked with powder crew members from the Bridger Coal Company to identify and rank routine work tasks based on perceived exposure to WMSD risk factors. This article presents the process followed to identify tasks that workers believed involved the greatest exposure to risk factors and discusses risk reduction strategies. Specifically, the proposed prill truck design changes addressed cab ingress/egress, loading blast holes, and access to the upper deck of the prill truck.

  17. Arkansas Renewable Electric Power Industry Statistics

    U.S. Energy Information Administration (EIA) (indexed site)

    Arkansas" "Primary Renewable Energy Capacity Source","Hydro Conventional" "Primary Renewable Energy Generation Source","Hydro Conventional" "Capacity (megawatts)","Value","Percent of State Total" "Total Net Summer Electricity Capacity",15981,100 "Total Net Summer Renewable Capacity",1667,10.4 " Geothermal","-","-" " Hydro Conventional",1341,8.4 "

  18. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    1. Average Sales Price of Coal by State and Coal Rank, 2015 (dollars per short ton) Coal-Producing State Bituminous Subbituminous Lignite Anthracite Total Alabama 84.05 - - - 84.05 Alaska - w - - w Arizona w - - - w Arkansas w - - - w Colorado w w - - 36.12 Illinois 40.77 - - - 40.77 Indiana 46.12 - - - 46.12 Kansas w - - - w Kentucky Total 55.01 - - - 55.01 Kentucky (East) 60.84 - - - 60.84 Kentucky (West) 50.10 - - - 50.10 Louisiana - - w - w Maryland 53.01 - - - 53.01 Mississippi - - w - w

  19. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    6. Coal Production and Number of Mines by State and Coal Rank, 2015 (thousand short tons) Bituminous Subbituminous Lignite Anthracite Total Coal-Producing State and Region 1 Number of Mines Production Number of Mines Production Number of Mines Production Number of Mines Production Number of Mines Production Alabama 37 13,191 - - - - - - 37 13,191 Alaska - - 1 1,177 - - - - 1 1,177 Arizona 1 6,805 - - - - - - 1 6,805 Arkansas 2 91 - - - - - - 2 91 Colorado 7 14,438 2 4,441 - - - - 9 18,879

  20. Surface electrochemical control for fine coal and pyrite separation. Technical progress report, April 1, 1992--June 30, 1992

    SciTech Connect (OSTI)

    Hu, Weibai; Huang, Qinping; Zhu, Ximeng; Li, Jun; Bodily, D.M; Zhong, Tingke; Wadsworth, M.E.

    1992-09-01

    A series of fine coal kinetic tests were carried out on three coals. It was found that the rank of flotation rates for the three coals tested were: Upper Freeport > Pittsburgh No. 8 > Illinois No. 6. In the case of Pittsburgh No. 8, the contained coal-pyrite was found to float more slowly than the coal itself when xanthate was used as the collector. In kinetic modeling, first order kinetic models produced large errors for long flotation times. It was found that a modified first order kinetic-model with slow and fast rate constants was appropriate for fine coal flotation. A log-log plot of 1(R{sub j} -R) versus t forms a straight line for the test conditions of this study. The Lai proportionality flotation model was found to apply from the start and extending over a very broad time range.

  1. Surface coal mining operations in two Oklahoma Counties raise questions about prime farmland reclamation and bond adequacy

    SciTech Connect (OSTI)

    Not Available

    1985-08-08

    The Surface Mining Control and Reclamation Act of 1977 allows prime farmland to be mined but requires the coal operator to reclaim it according to special reclamation standards. To be considered prime farmland, the soil must meet the Secretary of Agriculture's definition of prime soil and have historically been used for intensive agricultural purposes. In Oklahoma, the historical-use provision has generally been applied to lands that have been used for cropland for 5 of the preceding 10 years. GAO's review of mining activities in two Oklahoma counties showed that the land comprising 54 of the 58 mine permits issued since the act's passage contained some prime soil. None, however, required reclamation to prime farmland standards because landowners signed letters stating that the land had not been farmed for crops for five of the preceding 10 years. GAO also found that numerous sites in the two counties were abandoned by mining companies after the act was passed. Since abandonment, no reclamation has occurred on most of these sites. The Department of the Interior's Office of Surface Mining questions whether the bonds on the unreclaimed sites, if collected, will be adequate to do the necessary reclamation. Oklahoma's Department of Mines has taken action to increase bond amounts on newly-issued permits and on some older permitted areas in order to prevent future reclamation problems.

  2. Hendrix College student named Goldwater Scholar (Arkansas, Online) |

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Jefferson Lab Hendrix College student named Goldwater Scholar (Arkansas, Online) External Link: http://www.arkansasonline.com/news/2012/apr/08/hendrix-college-student-named-gol... By jlab_admin on Sun, 2012-04-08

  3. Arkansas Dry Natural Gas Expected Future Production (Billion...

    Gasoline and Diesel Fuel Update

    Expected Future Production (Billion Cubic Feet) Arkansas Dry Natural Gas Expected Future Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6...

  4. Arkansas Natural Gas Underground Storage Volume (Million Cubic...

    Annual Energy Outlook

    Underground Storage Volume (Million Cubic Feet) Arkansas Natural Gas Underground Storage Volume (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 ...

  5. Johnson County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Johnson County is a county in Arkansas. Its FIPS County Code is 071. It is classified as...

  6. Arkansas Dry Natural Gas New Reservoir Discoveries in Old Fields...

    U.S. Energy Information Administration (EIA) (indexed site)

    New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Arkansas Dry Natural Gas New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 ...

  7. Baxter County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Baxter County is a county in Arkansas. Its FIPS County Code is 005. It is classified as...

  8. Arkansas Natural Gas Input Supplemental Fuels (Million Cubic...

    U.S. Energy Information Administration (EIA) (indexed site)

    Input Supplemental Fuels (Million Cubic Feet) Arkansas Natural Gas Input Supplemental Fuels (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 ...

  9. Jackson County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Jackson County is a county in Arkansas. Its FIPS County Code is 067. It is classified as...

  10. Geothermal resources of the Upper San Luis and Arkansas valleys...

    Open Energy Information (Open El) [EERE & EIA]

    resources of the Upper San Luis and Arkansas valleys, Colorado Authors R.H. Pearl and J.K. Barrett Editors Epis, R.C. & Weimer and R.I. Published Colorado School of Mines:...

  11. Miller County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Miller County is a county in Arkansas. Its FIPS County Code is 091. It is classified as...

  12. Phillips County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Phillips County is a county in Arkansas. Its FIPS County Code is 107. It is classified as...

  13. Columbia County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    is a stub. You can help OpenEI by expanding it. Columbia County is a county in Arkansas. Its FIPS County Code is 027. It is classified as ASHRAE 169-2006 Climate Zone Number 3...

  14. Marion County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Marion County is a county in Arkansas. Its FIPS County Code is 089. It is classified as...

  15. Lee County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Lee County is a county in Arkansas. Its FIPS County Code is 077. It is classified as ASHRAE...

  16. Southwestern Electric Power Co (Arkansas) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Arkansas Phone Number: 1-888-216-3523 Website: www.swepco.com Twitter: @SWEPCoNews Outage Hotline: 1-888-216-3523 Outage Map: www.swepco.comoutagesoutageM References: EIA...

  17. City of Augusta, Arkansas (Utility Company) | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Augusta Light & Power Place: Arkansas Phone Number: 870-347-2041 Outage Hotline: 870-347-2041 References: EIA Form EIA-861 Final Data File for 2010 - File1a1 EIA Form 861 Data...

  18. Characterization of a geothermal system in the Upper Arkansas...

    Open Energy Information (Open El) [EERE & EIA]

    of a geothermal system in the Upper Arkansas Valley Authors T. Blum, K. van Wijk, L. Liberty, M. Batzle, R. Krahenbuhl, A. Revil and R. Reynolds Conference Society of...

  19. Bradley County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Bradley County is a county in Arkansas. Its FIPS County Code is 011. It is classified as...

  20. Arkansas Coalbed Methane Proved Reserves (Billion Cubic Feet...

    U.S. Energy Information Administration (EIA) (indexed site)

    Coalbed Methane Proved Reserves (Billion Cubic Feet) Arkansas Coalbed Methane Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 ...

  1. Montgomery County, Arkansas: Energy Resources | Open Energy Informatio...

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Montgomery County is a county in Arkansas. Its FIPS County Code is 097. It is classified as...

  2. Pike County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Pike County is a county in Arkansas. Its FIPS County Code is 109. It is classified as ASHRAE...

  3. Logan County, Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Hide Map This article is a stub. You can help OpenEI by expanding it. Logan County is a county in Arkansas. Its FIPS County Code is 083. It is classified as...

  4. Green Collar Courses Coming to Arkansas Colleges | Department...

    Office of Environmental Management (EM)

    April 29, 2010 - 4:45pm Addthis Stephen Graff Former Writer & editor for Energy Empowers, EERE When more green jobs start to open up in northwest Arkansas, educators want to ensure ...

  5. Smart Meter Investments Support Rural Economy in Arkansas

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Smart Meter Investments Support Rural Economy in Arkansas Woodruff Electric Cooperative (Woodruff) serves customers in seven eastern Arkansas counties. The proportion of residents living in poverty in those counties is more than double the national average. As a member-owned rural electric cooperative, Woodruff is connected to its customers and engaged in economic development efforts to bring more jobs and higher incomes to local communities. In order to bring the capital investment and its

  6. Delineation of an old coal mine in an urban environment with surface wave seismics using a landstreamer and laterally constrained inversion

    SciTech Connect (OSTI)

    Roger Wisen; Mattias Linden; Mats Svensson

    2007-01-15

    Prior to the site investigation for a tunnel below Helsingborg, southern Sweden, a surface wave seismic investigation was made to delineate an old coal mine. The mine as described in old literature has an area of about 6 acres and each layer of coal has a height of less than one 1 m; however, the exact location and status is unclear. The sedimentary geological setting consists of fill, quaternary deposits, shale, coal and sandstone. The mine, or alternatively the coal, is found at 10 m depth between a layer of shale and a layer of soft sandstone. The seismic measurements were made along two crossing profiles, located on the walkways covered with gravel, in the area where the mine is expected. The measurement system was a landstreamer with 244.5 Hz geophones, a Geometrics Geode and a shotgun. The v{sub s} models clearly show increasing velocities with depth with a low velocity layer at 10 m depth. The results correlate well with the expected geology and results from geotechnical drillings that indicate an open mine in parts of the area; however, the low velocity layer is mainly due to the soft sandstone and does not seem to be strongly affected by the presence of the open mine.

  7. Arkansas Oklahoma Gas Company (AOG)- Commerial and Industrial Efficiency Rebate Program

    Energy.gov [DOE]

    The Arkansas Oklahoma Gas (AOG) programs are available to all commercial and industrial AOG customers in Arkansas. The Commercial and Industrial Prescriptive program offers rebates for the instal...

  8. Spread of natural gas lines in Arkansas hurts LPG marketers anew

    SciTech Connect (OSTI)

    Not Available

    1990-09-01

    This article discusses the marketing of LP gas in Arkansas. The reaction of natural gas marketers in the state is described. Federal subsidation, through the U.S. Department of Housing and Urban Development, of utilities in Arkansas is described.

  9. Coal Markets

    U.S. Energy Information Administration (EIA) (indexed site)

    Coal Glossary FAQS Overview Data Coal Data Browser (interactive query tool with charting and mapping) Summary Prices Reserves Consumption Production Stocks Imports, exports ...

  10. Flotation and flocculation chemistry of coal and oxidized coals

    SciTech Connect (OSTI)

    Somasundaran, P.

    1990-01-01

    The objective of this research project is to understand the fundamentals involved in the flotation and flocculation of coal and oxidized coals and elucidate mechanisms by which surface interactions between coal and various reagents enhance coal beneficiation. An understanding of the nature of the heterogeneity of coal surfaces arising from the intrinsic distribution of chemical moieties is fundamental to the elucidation of mechanism of coal surface modification and its role in interfacial processes such as flotation, flocculation and agglomeration. A new approach for determining the distribution in surface properties of coal particles was developed in this study and various techniques capable of providing such information were identified. Distributions in surface energy, contact angle and wettability were obtained using novel techniques such as centrifugal immersion and film flotation. Changes in these distributions upon oxidation and surface modifications were monitored and discussed. An approach to the modelling of coal surface site distributions based on thermodynamic information obtained from gas adsorption and immersion calorimetry is proposed. Polyacrylamide and dodecane was used to alter the coal surface. Methanol adsorption was also studied. 62 figs.

  11. Fluid placement of fixated scrubber sludge to reduce surface subsidence and to abate acid mine drainage in abandoned underground coal mines

    SciTech Connect (OSTI)

    Meiers, R.J.; Golden, D.; Gray, R.; Yu, W.C.

    1995-12-31

    Indianapolis Power and Light Company (IPL) began researching the use of fluid placement techniques of the fixated scrubber sludge (FSS) to reduce surface subsidence from underground coal mines to develop an economic alternative to low strength concrete grout. Abandoned underground coal mines surround property adjacent to IPL`s coal combustion by-product (CCBP) landfill at the Petersburg Generating Station. Landfill expansion into these areas is in question because of the high potential for sinkhole subsidence to develop. Sinkholes manifesting at the surface would put the integrity of a liner or runoff pond containment structure for a CCBP disposal facility at risk. The fluid placement techniques of the FSS as a subsidence abatement technology was demonstrated during an eight week period in September, October, and November 1994 at the Petersburg Generating Station. The success of this technology will be determined by the percentage of the mine void filled, strength of the FSS placed, and the overall effects on the hydrogeologic environment. The complete report for this project will be finalized in early 1996.

  12. Arkansas Natural Gas Processed (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    (Million Cubic Feet) Arkansas Natural Gas Processed (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 93,452 88,011 56,190 1970's 37,816 31,387 17,946 26,135 19,784 17,918 20,370 18,630 18,480 1980's 29,003 31,530 33,753 34,572 258,648 174,872 197,781 213,558 228,157 1990's 272,278 224,625 156,573 198,074 218,710 100,720 219,477 185,244 198,148 179,524 2000's 207,045 207,352 12,635 13,725 10,139 16,756 13,702 11,532 6,531 2,352 2010's 9,599

  13. Arkansas: Energy Resources | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    MWh Coal Power 25,075,250 MWh Gas Power 11,368,417 MWh Petroleum Power 87,674 MWh Nuclear Power 15,169,966 MWh Other 24,019 MWh Total Energy Production 57,499,169 MWh...

  14. Arkansas Dry Natural Gas Reserves Acquisitions (Billion Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Acquisitions (Billion Cubic Feet) Arkansas Dry Natural Gas Reserves Acquisitions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 343 5 80 82 52 30 5 280 5 36 2010's 807 6,880 6 9 80 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Dry Natural Gas Reserves Acquisitions Arkansas Dry Natural Gas

  15. Arkansas Dry Natural Gas Reserves Sales (Billion Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Sales (Billion Cubic Feet) Arkansas Dry Natural Gas Reserves Sales (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 336 8 66 63 24 31 4 298 19 54 2010's 393 6,760 1 4 248 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Dry Natural Gas Reserves Sales Arkansas Dry Natural Gas Proved Reserves Dry

  16. Arkansas Natural Gas Number of Oil Wells (Number of Elements)

    U.S. Energy Information Administration (EIA) (indexed site)

    Oil Wells (Number of Elements) Arkansas Natural Gas Number of Oil Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2010's 165 174 218 233 240 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016 Referring Pages: Number of Gas Producing Oil Wells Number of Gas Producing Oil Wells (Summary) Arkansas Natural Gas

  17. Rheological properties of water-coal slurries based on brown coal in the presence of sodium lignosulfonates and alkali

    SciTech Connect (OSTI)

    D.P. Savitskii; A.S. Makarov; V.A. Zavgorodnii

    2009-07-01

    The effect of the oxidized surface of brown coal on the structural and rheological properties of water-coal slurries was found. The kinetics of structure formation processes in water-coal slurries based on as-received and oxidized brown coal was studied. The effect of lignosulfonate and alkali additives on the samples of brown coal was considered.

  18. Underground gasification of coal

    DOE Patents [OSTI]

    Pasini, III, Joseph; Overbey, Jr., William K.; Komar, Charles A.

    1976-01-20

    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.

  19. Repowering a small coal-fired power plant

    SciTech Connect (OSTI)

    Miell, R.

    2007-11-15

    The Arkansas River Power Authority (ARPA) Lamar Repowering Project is moving forward. The new generator, capable of producing 18 MW of electricity, is scheduled to be online in June 2008 bringing the total generation to 43 MW. New coal handling equipment, with infrared fire detectors, is almost complete. The new 18 MW steam turbine will be cooled by an air-cooled condenser. Coal will be delivered in a railroad spur to an unloading site then be unloaded onto a conveyor under the tracks and conveyed to two storage domes each holding 6000 tons of coal. It will be drawn out of these through an underground conveyor system, brought into a crusher, conveyed through overhead conveyors and fed into the new coal- fired fluidized bed boilers. 1 photo.

  20. NETL: Coal

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Gasification Systems | Advanced Combustion | Coal & Coal-Biomass to Liquids | Solid Oxide Fuel Cells | Turbines | sCO2 Technology CO2 Capture CO2 Capture NETL's CO2 Capture Program ...

  1. Coal pump

    DOE Patents [OSTI]

    Bonin, John H.; Meyer, John W.; Daniel, Jr., Arnold D.

    1983-01-01

    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.

  2. Coal production, 1991

    SciTech Connect (OSTI)

    Not Available

    1992-10-01

    Coal production in the United States in 1991 declined to a total of 996 million short tons, ending the 6-year upward trend in coal production that began in 1985. The 1991 figure is 33 million short tons below the record level of 1.029 billion short tons produced in 1990 (Table 1). Tables 2 through 33 in this report include data from mining operations that produced, prepared, and processed 10,000 or more short tons during the year. These mines yielded 993 million short tons, or 99.7 percent of the total coal production in 1991, and their summary statistics are discussed below. The majority of US coal (587 million short tons) was produced by surface mining (Table 2). Over half of all US surface mine production occurred in the Western Region, though the 60 surface mines in this area accounted for only 5 percent of the total US surface mines. The high share of production was due to the very large surface mines in Wyoming, Texas and Montana. Nearly three quarters of underground production was in the Appalachian Region, which accounted for 92 percent of underground mines. Continuous mining methods produced the most coal among those underground operations that responded. Of the 406 million short tons, 59 percent (239 million short tons) was produced by continuous mining methods, followed by longwall (29 percent, or 119 million short tons), and conventional methods (11 percent, or 46 million short tons).

  3. EIA - Coal Distribution

    Gasoline and Diesel Fuel Update

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

  4. EIA -Quarterly Coal Distribution

    Annual Energy Outlook

    - Coal Distribution Home > Coal> Quarterly Coal Distribution Back Issues Quarterly Coal Distribution Archives Release Date: March 9, 2016 Next Release Date: May 2016 The Quarterly ...

  5. Coal Markets

    U.S. Energy Information Administration (EIA) (indexed site)

    Coal Markets | Archive Coal Markets Weekly production Dollars per short ton Dollars per mmbtu Average weekly coal commodity spot prices dollars per short ton Week ending Week ago change Central Appalachia 12,500 Btu, 1.2 SO2 Northern Appalachia 13,000 Btu, < 3.0 SO2 Illinois Basin 11,800 Btu, 5.0 SO2 Powder River Basin 8,800 Btu, 0.8 SO2 Uinta Basin 11,700 Btu, 0.8 SO2 Source: With permission, SNL Energy Note: Coal prices shown reflect those of relatively high-Btu coal selected in each region

  6. Arkansas Natural Gas Company Hosts Tour With U.S. Deputy Secretary of

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Energy Poneman | Department of Energy Arkansas Natural Gas Company Hosts Tour With U.S. Deputy Secretary of Energy Poneman Arkansas Natural Gas Company Hosts Tour With U.S. Deputy Secretary of Energy Poneman February 3, 2012 - 12:54pm Addthis WASHINGTON, D.C. - Today, U.S. Deputy Secretary of Energy Daniel Poneman joined with Conway Mayor Tab Townsell and company officials to tour Southwestern Energy's natural gas operations near Conway, Arkansas. During the visit, Poneman highlighted

  7. U.S. Energy Information Administration | Annual Coal Report 2014

    Annual Energy Outlook

    Surface Total Alabama 89.68 79.42 87.17 88.19 88.24 88.20 1.7 -10.0 -1.2 Alaska - w w - w w - w w Arizona - w w - w w - w w Arkansas w - w w - w w - w Colorado 37.28 43.01 ...

  8. Electrochemical, Structural and Surface Characterization of Nickel/Zirconia Solid Oxide Fuel Cell Anodes in Coal Gas Containing Antimony

    SciTech Connect (OSTI)

    Marina, Olga A.; Pederson, Larry R.; Coyle, Christopher A.; Thomsen, Edwin C.; Nachimuthu, Ponnusamy; Edwards, Danny J.

    2011-02-27

    The interaction of antimony with the nickel-zirconia solid oxide fuel cell (SOFC) anode has been investigated. Tests with both anode-supported and electrolyte-supported button cells were performed at 700 and 800oC in synthetic coal gas containing 10 ppb to 9 ppm antimony. Minor performance loss was observed immediately after Sb introduction to coal gas resulting in ca. 5 % power output drop. While no further degradation was observed during the following several hundred hours of testing, cells abruptly and irreversibly failed after 800-1500 hours depending on Sb concentration and test temperature. Antimony was found to interact strongly with nickel and result in extensive alteration phase formation, consistent with expectations based on thermodynamic properties. Nickel antimonide phases, NiSb and Ni5Sb2, were partially coalesced into large grains and eventually affected electronic percolation through the anode support. Initial degradation was attributed to diffusion of antimony to the active anode/electrolyte interface to form an adsorption layer.

  9. Baxter County, Arkansas ASHRAE 169-2006 Climate Zone | Open Energy...

    Open Energy Information (Open El) [EERE & EIA]

    ASHRAE 169-2006 Climate Zone Jump to: navigation, search County Climate Zone Place Baxter County, Arkansas ASHRAE Standard ASHRAE 169-2006 Climate Zone Number Climate Zone...

  10. Arkansas Regional High Science Bowl | U.S. DOE Office of Science...

    Office of Science (SC) [DOE]

    Arkansas Regional High Science Bowl National Science Bowl (NSB) NSB Home About Regional Competitions Rules, Forms, and Resources High School Regionals Middle School Regionals ...

  11. Arkansas Natural Gas Gross Withdrawals (Million Cubic Feet per Day)

    Gasoline and Diesel Fuel Update

    Arkansas Natural Gas Gross Withdrawals (Million Cubic Feet per Day) Arkansas Natural Gas Gross Withdrawals (Million Cubic Feet per Day) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2006 600 607 639 654 681 718 732 775 808 856 899 923 2007 596 603 636 651 680 717 731 774 810 861 899 923 2008 940 1,005 1,065 1,104 1,142 1,196 1,256 1,313 1,316 1,375 1,422 1,517 2009 1,605 1,627 1,679 1,774 1,816 1,877 1,839 2,047 1,571 2,028 2,217 2,273 2010 2,263 2,295 2,340 2,450 2,471 2,517 2,582 2,660

  12. Economic assessment of the impact on coal production due to enforcement of the Surface Mining Control and Reclamation Act of 1977. Benefits report. Volume 1. Final report

    SciTech Connect (OSTI)

    Kyle, T.N.; McOmber, R.M.; Roberts, J.M.

    1980-10-31

    The study assesses the major economic benefits and costs that are associated with the enforcement of the Surface Mining Control and Reclamation ACt (SMCRA). The report addresses the benefits of surface coal mining and land reclamation that follow from the Act. As originally conceived, the study was to evaluate, preferably in monetary terms, the specific benefits and socio-economic impacts of SMCRA. However, it was apparent, in the course of the initial analysis, that historical evaluation of specific benefits and socio-economic/environmental impacts is complicated by the short time that SMCRA has been in operation. It was also apparent that development of substantive, and defensible, quantified estimates of benefits and impacts is hindered by the absence of a great deal of needed numerical data, and by incomplete understanding of the reclamation processes that the Act is intended to enhance. Rather than attempt to evaluate specific benefits and socio-economic/environmental impacts, the study evaluated existing research studies on the impacts of surface mining, land reclamation, and SMCRA, and evaluated existing data sources relevant to surface mining, land reclamation, and SMCRA.

  13. Arkansas Coalbed Methane Proved Reserves Acquisitions (Billion Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Acquisitions (Billion Cubic Feet) Arkansas Coalbed Methane Proved Reserves Acquisitions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 22 2010's 0 0 0 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Coalbed Methane Reserves Acquisitions

  14. Arkansas Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Adjustments (Billion Cubic Feet) Arkansas Coalbed Methane Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 2010's 1 0 0 0 1 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Coalbed Methane Reserves Adjustments

  15. Arkansas Coalbed Methane Proved Reserves Sales (Billion Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Sales (Billion Cubic Feet) Arkansas Coalbed Methane Proved Reserves Sales (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 31 2010's 0 0 0 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Coalbed Methane Reserves Sales

  16. Arkansas Crude Oil + Lease Condensate Reserves Extensions (Million Barrels)

    U.S. Energy Information Administration (EIA) (indexed site)

    Extensions (Million Barrels) Arkansas Crude Oil + Lease Condensate Reserves Extensions (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 2010's 6 0 5 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Crude Oil plus Lease Condensate Reserves Extensions

  17. Arkansas Crude Oil + Lease Condensate Reserves Sales (Million Barrels)

    U.S. Energy Information Administration (EIA) (indexed site)

    Sales (Million Barrels) Arkansas Crude Oil + Lease Condensate Reserves Sales (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 3 2010's 3 28 0 0 2 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Crude Oil plus Lease Condensate Reserves Sales

  18. Arkansas Shale Proved Reserves Acquisitions (Billion Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Acquisitions (Billion Cubic Feet) Arkansas Shale Proved Reserves Acquisitions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 2010's 774 6,220 0 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Shale Natural Gas Reserves Acquisitions

  19. Arkansas Shale Proved Reserves Adjustments (Billion Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Adjustments (Billion Cubic Feet) Arkansas Shale Proved Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 2 2010's 63 655 -754 7 -21 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Shale Natural Gas Reserves Adjustments

  20. Arkansas Shale Proved Reserves Sales (Billion Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Sales (Billion Cubic Feet) Arkansas Shale Proved Reserves Sales (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 3 2010's 336 6,087 0 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Shale Natural Gas Reserves Sales

  1. Underground Coal Gasification Program

    Energy Science and Technology Software Center (OSTI)

    1994-12-01

    CAVSIM is a three-dimensional, axisymmetric model for resource recovery and cavity growth during underground coal gasification (UCG). CAVSIM is capable of following the evolution of the cavity from near startup to exhaustion, and couples explicitly wall and roof surface growth to material and energy balances in the underlying rubble zones. Growth mechanisms are allowed to change smoothly as the system evolves from a small, relatively empty cavity low in the coal seam to a large,more┬á┬╗ almost completely rubble-filled cavity extending high into the overburden rock. The model is applicable to nonswelling coals of arbitrary seam thickness and can handle a variety of gas injection flow schedules or compositions. Water influx from the coal aquifer is calculated by a gravity drainage-permeation submodel which is integrated into the general solution. The cavity is considered to consist of up to three distinct rubble zones and a void space at the top. Resistance to gas flow injected from a stationary source at the cavity floor is assumed to be concentrated in the ash pile, which builds up around the source, and also the overburden rubble which accumulates on top of this ash once overburden rock is exposed at the cavity top. Char rubble zones at the cavity side and edges are assumed to be highly permeable. Flow of injected gas through the ash to char rubble piles and the void space is coupled by material and energy balances to cavity growth at the rubble/coal, void/coal and void/rock interfaces. One preprocessor and two postprocessor programs are included - SPALL calculates one-dimensional mean spalling rates of coal or rock surfaces exposed to high temperatures and generates CAVSIM input: TAB reads CAVSIM binary output files and generates ASCII tables of selected data for display; and PLOT produces dot matrix printer or HP printer plots from TAB output.┬ź┬áless

  2. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    5. Recoverable Coal Reserves at Producing Mines, Estimated Recoverable Reserves, and Demonstrated Reserve Base by Mining Method, 2015 (million short tons) Underground - Minable Coal Surface - Minable Coal Total Coal-Resource State Recoverable Reserves at Producing Mines Estimated Recoverable Reserves Demonstrated Reserve Base Recoverable Reserves at Producing Mines Estimated Recoverable Reserves Demonstrated Reserve Base Recoverable Reserves at Producing Mines Estimated Recoverable Reserves

  3. Underground coal gasification. Presentations

    SciTech Connect (OSTI)

    2007-07-01

    The 8 presentations are: underground coal gasification (UCG) and the possibilities for carbon management (J. Friedmann); comparing the economics of UCG with surface gasification technologies (E. Redman); Eskom develops UCG technology project (C. Gross); development and future of UCG in the Asian region (L. Walker); economically developing vast deep Powder River Basin coals with UCG (S. Morzenti); effectively managing UCG environmental issues (E. Burton); demonstrating modelling complexity of environmental risk management; and UCG research at the University of Queensland, Australia (A.Y. Klimenko).

  4. Pyrolysis of coal

    DOE Patents [OSTI]

    Babu, Suresh P.; Bair, Wilford G.

    1992-01-01

    A method for mild gasification of crushed coal in a single vertical elongated reaction vessel providing a fluidized bed reaction zone, a freeboard reaction zone, and an entrained reaction zone within the single vessel. Feed coal and gas may be fed separately to each of these reaction zones to provide different reaction temperatures and conditions in each reaction zone. The reactor and process of this invention provides for the complete utilization of a coal supply for gasification including utilization of caking and non-caking or agglomerating feeds in the same reactor. The products may be adjusted to provide significantly greater product economic value, especially with respect to desired production of char having high surface area.

  5. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    9. Major U.S. Coal Mines, 2015 Rank Mine Name / Operating Company Mine Type State Production (short tons) 1 North Antelope Rochelle Mine / Peabody Powder River Mining LLC Surface Wyoming 109,343,913 2 Black Thunder / Thunder Basin Coal Company LLC Surface Wyoming 99,450,689 3 Antelope Coal Mine / Antelope Coal LLC Surface Wyoming 35,181,059 4 Cordero Rojo Mine / Cordero Mining LLC Surface Wyoming 22,871,976 5 Eagle Butte Mine / Alpha Coal West, Inc. Surface Wyoming 19,649,723 6 Belle Ayr Mine /

  6. Coal Market Module

    Gasoline and Diesel Fuel Update

    power generation, industrial steam generation, coal-to-liquids production, coal coke manufacturing, residentialcommercial consumption, and coal exports) within the CMM. By...

  7. Coal Distribution Database, 2008

    U.S. Energy Information Administration (EIA) (indexed site)

    Processing Coal Plants and Commercial and Institutional Coal Users" and Form EIA-7A, "Coal Production and Preparation Report." Appendix A Assigning Missing Data to EIA-923...

  8. Coal Fleet Aging Meeting

    Annual Energy Outlook

    Director, Office of Electricity, Coal, Nuclear, and Renewables Analysis FROM: Coal and ... capital cost adder based on the age and type of unit (coal, oilgas steam, and nuclear). ...

  9. Coal industry annual 1994

    SciTech Connect (OSTI)

    1995-10-01

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

  10. ,"Arkansas Dry Natural Gas Proved Reserves"

    U.S. Energy Information Administration (EIA) (indexed site)

    Proved Reserves" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Dry Natural Gas Proved Reserves",10,"Annual",2014,"6/30/1977" ,"Release Date:","11/19/2015" ,"Next Release Date:","12/31/2016" ,"Excel File

  11. ,"Arkansas Proved Nonproducing Reserves"

    U.S. Energy Information Administration (EIA) (indexed site)

    Proved Nonproducing Reserves" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Proved Nonproducing Reserves",5,"Annual",2014,"6/30/1996" ,"Release Date:","11/19/2015" ,"Next Release Date:","12/31/2016" ,"Excel File

  12. Arkansas Dry Natural Gas Reserves Adjustments (Billion Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Adjustments (Billion Cubic Feet) Arkansas Dry Natural Gas Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's -1 22 -2 1980's -7 39 93 -15 90 -127 55 26 124 -46 1990's 94 110 183 -62 95 64 33 -21 -1 -48 2000's -3 28 27 21 13 8 -26 -27 -64 5 2010's -34 728 -743 -78 -3 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next

  13. Arkansas Dry Natural Gas Reserves Estimated Production (Billion Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Estimated Production (Billion Cubic Feet) Arkansas Dry Natural Gas Reserves Estimated Production (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 109 120 100 1980's 117 121 158 206 188 175 123 129 159 166 1990's 164 173 204 188 186 182 200 189 170 163 2000's 154 160 157 166 170 174 188 269 456 698 2010's 951 1,079 1,151 1,140 1,142 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual

  14. Arkansas Dry Natural Gas Reserves Revision Decreases (Billion Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Decreases (Billion Cubic Feet) Arkansas Dry Natural Gas Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 175 32 58 1980's 89 76 116 157 167 178 262 229 232 288 1990's 118 195 175 123 95 92 108 101 653 376 2000's 48 88 107 134 91 142 113 146 189 621 2010's 301 324 6,610 284 1,094 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release

  15. Arkansas Dry Natural Gas Reserves Revision Increases (Billion Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Increases (Billion Cubic Feet) Arkansas Dry Natural Gas Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 50 76 48 1980's 116 61 87 181 146 105 180 215 118 202 1990's 100 163 182 98 147 107 96 205 596 761 2000's 207 128 114 148 200 122 101 321 1,249 1,912 2010's 1,072 631 1,754 560 171 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data.

  16. Arkansas Natural Gas LNG Storage Additions (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Additions (Million Cubic Feet) Arkansas Natural Gas LNG Storage Additions (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 14 5 21 0 44 18 22 52 42 30 1990's 128 38 50 53 73 29 0 57 64 52 2000's 52 50 85 36 76 72 45 54 51 27 2010's 42 47 57 52 56 20 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016 Referring

  17. Arkansas Natural Gas LNG Storage Net Withdrawals (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Net Withdrawals (Million Cubic Feet) Arkansas Natural Gas LNG Storage Net Withdrawals (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 14 -19 -11 -34 36 -8 4 9 -12 -32 1990's 106 -11 -1 9 5 -27 -85 -11 2 -1 2000's -1 -2 4 52 -36 -20 12 -3 -21 -24 2010's 2 -7 9 12 14 -35 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date:

  18. Arkansas Natural Gas LNG Storage Withdrawals (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Withdrawals (Million Cubic Feet) Arkansas Natural Gas LNG Storage Withdrawals (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 0 24 32 34 8 26 18 43 54 62 1990's 23 49 51 44 68 56 85 68 62 53 2000's 52 52 81 88 40 51 57 57 72 51 2010's 40 53 48 40 42 55 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016 Referring

  19. Arkansas Natural Gas Plant Fuel Consumption (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Fuel Consumption (Million Cubic Feet) Arkansas Natural Gas Plant Fuel Consumption (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 982 966 7,077 4,709 6,270 6,646 7,646 1990's 637 188 268 352 467 468 451 508 405 405 2000's 441 653 890 504 490 433 509 404 470 489 2010's 529 423 622 797 871 783 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016

  20. Arkansas Renewable Electric Power Industry Net Generation, by Energy Source

    U.S. Energy Information Administration (EIA) (indexed site)

    Arkansas" "Energy Source",2006,2007,2008,2009,2010 "Geothermal","-","-","-","-","-" "Hydro Conventional",1551,3237,4660,4193,3659 "Solar","-","-","-","-","-" "Wind","-","-","-","-","-" "Wood/Wood Waste",1689,1581,1466,1529,1567 "MSW Biogenic/Landfill Gas",7,33,36,34,38

  1. Arkansas Associated-Dissolved Natural Gas, Reserves in Nonproducing

    U.S. Energy Information Administration (EIA) (indexed site)

    Reservoirs, Wet (Billion Cubic Feet) Reserves in Nonproducing Reservoirs, Wet (Billion Cubic Feet) Arkansas Associated-Dissolved Natural Gas, Reserves in Nonproducing Reservoirs, Wet (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's 7 10 3 9 2000's 14 9 10 10 10 10 8 2 1 0 2010's 1 0 70 70 60 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date:

  2. Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation,

    U.S. Energy Information Administration (EIA) (indexed site)

    Estimated Production from Reserves (Billion Cubic Feet) Estimated Production from Reserves (Billion Cubic Feet) Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation, Estimated Production from Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 11 1980's 28 28 9 11 11 4 7 6 6 6 1990's 13 21 25 21 19 22 23 17 13 5 2000's 4 3 5 5 4 3 5 4 3 4 2010's 4 6 9 9 10 - = No Data Reported; -- = Not Applicable; NA = Not

  3. Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation,

    U.S. Energy Information Administration (EIA) (indexed site)

    Reserves Acquisitions (Billion Cubic Feet) Acquisitions (Billion Cubic Feet) Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation, Reserves Acquisitions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 0 2 1 0 27 0 0 0 0 2010's 0 0 0 0 79 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016

  4. Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation,

    U.S. Energy Information Administration (EIA) (indexed site)

    Reserves Adjustments (Billion Cubic Feet) Adjustments (Billion Cubic Feet) Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation, Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 2 1980's 0 0 4 1 1 -26 -2 3 15 -2 1990's -70 91 23 -17 11 25 14 -19 -3 -1 2000's -1 -1 4 2 -1 -3 3 -7 3 12 2010's -3 24 38 -23 -20 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid

  5. Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation,

    U.S. Energy Information Administration (EIA) (indexed site)

    Reserves Extensions (Billion Cubic Feet) Extensions (Billion Cubic Feet) Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation, Reserves Extensions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 0 1980's 2 1 3 16 3 1 2 1 1 0 1990's 0 1 0 0 0 2 1 0 0 0 2000's 0 0 0 0 0 1 0 0 0 0 2010's 4 0 11 1 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data.

  6. Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation,

    U.S. Energy Information Administration (EIA) (indexed site)

    Reserves Revision Decreases (Billion Cubic Feet) Decreases (Billion Cubic Feet) Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation, Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 9 1980's 0 2 12 3 7 11 18 11 4 10 1990's 4 5 4 8 5 6 25 7 17 20 2000's 1 1 1 2 0 1 2 7 28 0 2010's 0 13 9 4 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of

  7. Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation,

    U.S. Energy Information Administration (EIA) (indexed site)

    Reserves Revision Increases (Billion Cubic Feet) Increases (Billion Cubic Feet) Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation, Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 2 1980's 54 19 4 17 9 8 18 8 5 6 1990's 8 3 3 6 5 20 18 10 15 29 2000's 4 1 10 3 7 1 2 11 3 5 2010's 12 50 5 88 14 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure

  8. Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation,

    U.S. Energy Information Administration (EIA) (indexed site)

    Reserves Sales (Billion Cubic Feet) Sales (Billion Cubic Feet) Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation, Reserves Sales (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 5 2 0 0 16 0 0 0 5 2010's 0 38 0 0 9 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages:

  9. Arkansas Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic

    U.S. Energy Information Administration (EIA) (indexed site)

    Feet) Decreases (Billion Cubic Feet) Arkansas Coalbed Methane Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 2010's 1 3 10 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Coalbed Methane Reserves Revision Decreases

  10. Arkansas Coalbed Methane Proved Reserves Revision Increases (Billion Cubic

    U.S. Energy Information Administration (EIA) (indexed site)

    Feet) Increases (Billion Cubic Feet) Arkansas Coalbed Methane Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 3 2010's 9 0 1 5 3 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Coalbed Methane Reserves Revision Increases

  11. Arkansas Crude Oil + Lease Condensate Estimated Production from Reserves

    U.S. Energy Information Administration (EIA) (indexed site)

    (Million Barrels) Estimated Production from Reserves (Million Barrels) Arkansas Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 6 2010's 5 6 6 4 6 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Crude Oil plus Lease Condensate

  12. Arkansas Crude Oil + Lease Condensate Reserves Acquisitions (Million

    U.S. Energy Information Administration (EIA) (indexed site)

    Barrels) Acquisitions (Million Barrels) Arkansas Crude Oil + Lease Condensate Reserves Acquisitions (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 2010's 0 3 0 0 11 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Crude Oil plus Lease Condensate Reserves Acquisitions

  13. Arkansas Crude Oil + Lease Condensate Reserves Adjustments (Million

    U.S. Energy Information Administration (EIA) (indexed site)

    Barrels) Adjustments (Million Barrels) Arkansas Crude Oil + Lease Condensate Reserves Adjustments (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 2 2010's 3 -2 15 -22 23 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Crude Oil plus Lease Condensate Proved Reserves

  14. Arkansas Crude Oil + Lease Condensate Reserves Revision Decreases (Million

    U.S. Energy Information Administration (EIA) (indexed site)

    Barrels) Decreases (Million Barrels) Arkansas Crude Oil + Lease Condensate Reserves Revision Decreases (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 2010's 0 0 3 3 2 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Crude Oil plus Lease Condensate Revision Decreases, Wet After Lease

  15. Arkansas Crude Oil + Lease Condensate Reserves Revision Increases (Million

    U.S. Energy Information Administration (EIA) (indexed site)

    Barrels) Increases (Million Barrels) Arkansas Crude Oil + Lease Condensate Reserves Revision Increases (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 5 2010's 12 31 4 15 2 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Crude Oil plus Lease Condensate Revision Increases

  16. Arkansas Natural Gas Liquids Lease Condensate, Proved Reserves Adjustments

    U.S. Energy Information Administration (EIA) (indexed site)

    (Million Barrels) Adjustments (Million Barrels) Arkansas Natural Gas Liquids Lease Condensate, Proved Reserves Adjustments (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 2010's 1 0 -1 -1 1 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Lease Condensate Reserves Adjustments

  17. Arkansas Natural Gas Liquids Lease Condensate, Proved Reserves Increases

    U.S. Energy Information Administration (EIA) (indexed site)

    (Million Barrels) Increases (Million Barrels) Arkansas Natural Gas Liquids Lease Condensate, Proved Reserves Increases (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 0 2010's 0 0 1 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Lease Condensate Reserves Revision Increases

  18. Arkansas Natural Gas Liquids Lease Condensate, Reserves Based Production

    U.S. Energy Information Administration (EIA) (indexed site)

    (Million Barrels) Reserves Based Production (Million Barrels) Arkansas Natural Gas Liquids Lease Condensate, Reserves Based Production (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 0 1980's 0 0 0 0 0 0 0 0 0 0 1990's 0 0 0 0 0 0 1 1 0 0 2000's 0 0 0 0 0 0 0 0 0 0 2010's 0 0 0 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next

  19. Arkansas Natural Gas Liquids Lease Condensate, Reserves in Nonproducing

    U.S. Energy Information Administration (EIA) (indexed site)

    Reservoirs (Million Barrels) in Nonproducing Reservoirs (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's 0 0 2000's 0 0 0 0 0 0 0 0 0 0 2010's 0 0 0 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Proved Nonproducing Reserves of Lease Condensate Arkansas Proved Nonproducing Reserves

  20. Arkansas Natural Gas Plant Liquids, Proved Reserves (Million Barrels)

    U.S. Energy Information Administration (EIA) (indexed site)

    Proved Reserves (Million Barrels) Arkansas Natural Gas Plant Liquids, Proved Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 17 1980's 16 16 15 11 12 11 16 16 13 9 1990's 9 5 4 4 6 6 4 7 5 5 2000's 5 5 4 3 3 3 4 3 2 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Natural Gas Liquids

  1. Arkansas Natural Gas Wet After Lease Separation, Reserves in Nonproducing

    U.S. Energy Information Administration (EIA) (indexed site)

    Reservoirs (Billion Cubic Feet) Wet After Lease Separation, Reserves in Nonproducing Reservoirs (Billion Cubic Feet) Arkansas Natural Gas Wet After Lease Separation, Reserves in Nonproducing Reservoirs (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's 156 146 99 195 2000's 221 257 264 253 325 420 623 1,047 2,183 5,872 2010's 7,274 5,919 3,520 4,844 4,011 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid

  2. Arkansas Nonassociated Natural Gas, Reserves in Nonproducing Reservoirs,

    U.S. Energy Information Administration (EIA) (indexed site)

    Wet (Billion Cubic Feet) Reserves in Nonproducing Reservoirs, Wet (Billion Cubic Feet) Arkansas Nonassociated Natural Gas, Reserves in Nonproducing Reservoirs, Wet (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's 149 136 96 186 2000's 207 247 254 243 315 410 615 1,045 2,182 5,872 2010's 7,273 5,919 3,450 4,774 3,951 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company

  3. Arkansas Nonassociated Natural Gas, Wet After Lease Separation, Estimated

    U.S. Energy Information Administration (EIA) (indexed site)

    Production from Reserves (Billion Cubic Feet) Estimated Production from Reserves (Billion Cubic Feet) Arkansas Nonassociated Natural Gas, Wet After Lease Separation, Estimated Production from Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 91 1980's 90 94 150 196 178 173 119 124 154 161 1990's 152 152 180 167 167 160 178 173 157 159 2000's 150 157 153 161 166 171 183 265 454 694 2010's 948 1,074 1,143 1,132 1,133 - = No Data

  4. Arkansas Nonassociated Natural Gas, Wet After Lease Separation, New

    U.S. Energy Information Administration (EIA) (indexed site)

    Reservoir Discoveries in Old Fields (Billion Cubic Feet) Reservoir Discoveries in Old Fields (Billion Cubic Feet) Arkansas Nonassociated Natural Gas, Wet After Lease Separation, New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 24 1980's 25 1 24 8 14 16 24 29 27 13 1990's 9 6 6 1 1 0 27 15 36 12 2000's 16 11 8 0 18 31 33 27 41 36 2010's 27 23 11 1 2 - = No Data Reported; -- = Not Applicable; NA =

  5. Arkansas Nonassociated Natural Gas, Wet After Lease Separation, New Field

    U.S. Energy Information Administration (EIA) (indexed site)

    Discoveries (Billion Cubic Feet) New Field Discoveries (Billion Cubic Feet) Arkansas Nonassociated Natural Gas, Wet After Lease Separation, New Field Discoveries (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 3 1980's 5 18 7 4 2 13 0 0 0 0 1990's 2 0 1 0 1 0 2 0 0 1 2000's 0 0 24 0 3 4 7 0 0 0 2010's 0 0 0 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data.

  6. Arkansas Nonassociated Natural Gas, Wet After Lease Separation, Reserves

    U.S. Energy Information Administration (EIA) (indexed site)

    Acquisitions (Billion Cubic Feet) Acquisitions (Billion Cubic Feet) Arkansas Nonassociated Natural Gas, Wet After Lease Separation, Reserves Acquisitions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 343 5 78 81 52 3 5 280 5 36 2010's 807 6,882 6 9 1 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016

  7. Arkansas Nonassociated Natural Gas, Wet After Lease Separation, Reserves

    U.S. Energy Information Administration (EIA) (indexed site)

    Adjustments (Billion Cubic Feet) Adjustments (Billion Cubic Feet) Arkansas Nonassociated Natural Gas, Wet After Lease Separation, Reserves Adjustments (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 17 1980's -8 36 85 -20 89 -100 65 26 101 -48 1990's 162 15 160 -45 84 39 18 0 3 -47 2000's -2 28 25 17 13 11 -31 -22 -67 -8 2010's -31 705 -778 -53 18 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid

  8. Arkansas Nonassociated Natural Gas, Wet After Lease Separation, Reserves

    U.S. Energy Information Administration (EIA) (indexed site)

    Revision Decreases (Billion Cubic Feet) Decreases (Billion Cubic Feet) Arkansas Nonassociated Natural Gas, Wet After Lease Separation, Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 49 1980's 90 75 105 155 161 168 246 222 229 279 1990's 114 191 171 115 91 87 83 94 638 357 2000's 48 87 106 132 91 141 112 139 161 621 2010's 301 311 6,603 280 1,095 - = No Data Reported; -- = Not Applicable; NA = Not Available;

  9. Arkansas Nonassociated Natural Gas, Wet After Lease Separation, Reserves

    U.S. Energy Information Administration (EIA) (indexed site)

    Revision Increases (Billion Cubic Feet) Increases (Billion Cubic Feet) Arkansas Nonassociated Natural Gas, Wet After Lease Separation, Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 46 1980's 64 43 83 165 138 98 163 210 115 197 1990's 93 160 179 92 142 88 79 196 582 734 2000's 204 127 104 146 193 121 99 310 1,247 1,907 2010's 1,060 581 1,749 472 157 - = No Data Reported; -- = Not Applicable; NA = Not

  10. Arkansas Nonassociated Natural Gas, Wet After Lease Separation, Reserves

    U.S. Energy Information Administration (EIA) (indexed site)

    Sales (Billion Cubic Feet) Sales (Billion Cubic Feet) Arkansas Nonassociated Natural Gas, Wet After Lease Separation, Reserves Sales (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 337 3 64 63 24 15 4 298 19 49 2010's 393 6,724 1 4 239 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages:

  11. Arkansas Shale Proved Reserves Extensions (Billion Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Extensions (Billion Cubic Feet) Arkansas Shale Proved Reserves Extensions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 4,441 2010's 3,014 2,073 1,370 3,381 1,483 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Shale Natural Gas Reserves Extensions

  12. Arkansas Shale Proved Reserves Revision Decreases (Billion Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Decreases (Billion Cubic Feet) Arkansas Shale Proved Reserves Revision Decreases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 261 2010's 126 141 6,151 239 1,056 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Shale Natural Gas Reserves Revision Decreases

  13. Arkansas Shale Proved Reserves Revision Increases (Billion Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Increases (Billion Cubic Feet) Arkansas Shale Proved Reserves Revision Increases (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 2000's 1,585 2010's 861 502 1,533 329 96 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Shale Natural Gas Reserves Revision Increases

  14. Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation,

    U.S. Energy Information Administration (EIA) (indexed site)

    Proved Reserves (Billion Cubic Feet) Proved Reserves (Billion Cubic Feet) Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 166 1980's 194 184 174 194 189 157 150 145 157 145 1990's 67 136 133 93 85 104 89 56 38 41 2000's 39 30 38 37 40 46 44 37 12 20 2010's 29 46 82 135 189 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to

  15. Arkansas Crude Oil Reserves in Nonproducing Reservoirs (Million Barrels)

    U.S. Energy Information Administration (EIA) (indexed site)

    Reserves in Nonproducing Reservoirs (Million Barrels) Arkansas Crude Oil Reserves in Nonproducing Reservoirs (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's NA NA 2 5 2000's 7 4 5 2 3 2 1 0 0 0 2010's 1 0 11 10 8 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Proved Nonproducing Reserves of Crude

  16. Arkansas Natural Gas Plant Liquids, Expected Future Production (Million

    U.S. Energy Information Administration (EIA) (indexed site)

    Barrels) Expected Future Production (Million Barrels) Arkansas Natural Gas Plant Liquids, Expected Future Production (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 16 1980's 15 15 12 9 10 9 15 15 11 8 1990's 7 3 2 2 3 3 2 3 3 3 2000's 3 3 3 2 2 2 2 2 1 2 2010's 2 3 3 4 5 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date:

  17. H. R. 4053: A Bill to amend the Surface Mining Control and Reclamation Act of 1977 to provide for the remining of certain abandoned coal mine lands. Introduced in the House of Representatives, One Hundredth First Congress, Second Session, February 21, 1990

    SciTech Connect (OSTI)

    Not Available

    1990-01-01

    The bill would amend the Surface Mining Control and Reclamation Act of 1977 to provide for the remining of certain abandoned coal mine lands. The bill describes definitions; state remining insurance programs; state self-sustaining remining insurance fund; penalties and enforcement; special rules applicable to remining operations; and abandoned coal refuse and disposal piles.

  18. Pelletization of fine coals. Final report

    SciTech Connect (OSTI)

    Sastry, K.V.S.

    1995-12-31

    Coal is one of the most abundant energy resources in the US with nearly 800 million tons of it being mined annually. Process and environmental demands for low-ash, low-sulfur coals and economic constraints for high productivity are leading the coal industry to use such modern mining methods as longwall mining and such newer coal processing techniques as froth flotation, oil agglomeration, chemical cleaning and synthetic fuel production. All these processes are faced with one common problem area--fine coals. Dealing effectively with these fine coals during handling, storage, transportation, and/or processing continues to be a challenge facing the industry. Agglomeration by the unit operation of pelletization consists of tumbling moist fines in drums or discs. Past experimental work and limited commercial practice have shown that pelletization can alleviate the problems associated with fine coals. However, it was recognized that there exists a serious need for delineating the fundamental principles of fine coal pelletization. Accordingly, a research program has been carried involving four specific topics: (i) experimental investigation of coal pelletization kinetics, (ii) understanding the surface principles of coal pelletization, (iii) modeling of coal pelletization processes, and (iv) simulation of fine coal pelletization circuits. This report summarizes the major findings and provides relevant details of the research effort.

  19. Keystone coal industry manual

    SciTech Connect (OSTI)

    Not Available

    1993-01-01

    The 1994 Keystone Coal Industry Manual is presented. Keystone has served as the one industry reference authority for the many diverse organizations concerned with the supply and utilization of coal in the USA and Canada. Through the continuing efforts of coal producers, buyers, users, sellers, and equipment designers and manufacturers, the coal industry supplies an abundant and economical fuel that is indispensable in meeting the expanding energy needs of North America. The manual is divided into the following sections: coal sales companies, coal export, transportation of coal, consumer directories, coal associations and groups, consulting and financial firms, buyers guide, industry statistics and ownership, coal preparation, coal mine directory, and coal seams.

  20. Apparatus for solar coal gasification

    DOE Patents [OSTI]

    Gregg, D.W.

    Apparatus for using focused solar radiation to gasify coal and other carbonaceous materials is described. Incident solar radiation is focused from an array of heliostats onto a tower-mounted secondary mirror which redirects the focused solar radiation down through a window onto the surface of a vertically-moving bed of coal, or a fluidized bed of coal, contained within a gasification reactor. The reactor is designed to minimize contact between the window and solids in the reactor. Steam introduced into the gasification reactor reacts with the heated coal to produce gas consisting mainly of carbon monoxide and hydrogen, commonly called synthesis gas, which can be converted to methane, methanol, gasoline, and other useful products. One of the novel features of the invention is the generation of process steam at the rear surface of the secondary mirror.

  1. By Coal Origin State

    Gasoline and Diesel Fuel Update

    Annual Coal Distribution Report 2010 U.S. Energy Information Administration | Annual Coal Distribution Report 2010 Alabama ...

  2. Practices for protecting and enhancing fish and wildlife on coal surface-mined land in the southcentral U. S. Handbook

    SciTech Connect (OSTI)

    Ambrose, R.E.; Hinkle, C.R.; Wenzel, C.R.

    1983-03-01

    This handbook contains information on the best current practices to minimize disturbances and adverse impacts of surface mining on fish and wildlife resources. Current state and federal legislation was reviewed to determine those practices which were most compatible with the best technology currently available, fish and wildlife plans, and reclamation plans for the Southcentral region of the U.S. The information presented includes risks, limitations, approximate costs, and maintenance and management requirements of each practice. Plans for the restoration of specific habitats, according to the best current practices, are also included.

  3. Streamline coal slurry letdown valve

    DOE Patents [OSTI]

    Platt, R.J.; Shadbolt, E.A.

    1983-11-08

    A streamlined coal slurry letdown valve is featured which has a two-piece throat comprised of a seat and seat retainer. The two-piece design allows for easy assembly and disassembly of the valve. A novel cage holds the two-piece throat together during the high pressure letdown. The coal slurry letdown valve has long operating life as a result of its streamlined and erosion-resistance surfaces. 5 figs.

  4. Streamline coal slurry letdown valve

    DOE Patents [OSTI]

    Platt, Robert J.; Shadbolt, Edward A.

    1983-01-01

    A streamlined coal slurry letdown valve is featured which has a two-piece throat comprised of a seat and seat retainer. The two-piece design allows for easy assembly and disassembly of the valve. A novel cage holds the two-piece throat together during the high pressure letdown. The coal slurry letdown valve has long operating life as a result of its streamlined and erosion-resistance surfaces.

  5. Coal mine subsidence

    SciTech Connect (OSTI)

    Rahall, N.J.

    1991-05-01

    This paper examines the efficacy of the Department of the Interior's Office of Surface Mining Reclamation and Enforcement's (OSMRE) efforts to implement the federally assisted coal mine subsidence insurance program. Coal mine subsidence, a gradual settling of the earth's surface above an underground mine, can damage nearby land and property. To help protect property owners from subsidence-related damage, the Congress passed legislation in 1984 authorizing OSMRE to make grants of up to $3 million to each state to help the states establish self-sustaining, state-administered insurance programs. Of the 21 eligible states, six Colorado, Indiana, Kentucky, Ohio, West Virginia, and Wyoming applied for grants. This paper reviews the efforts of these six states to develop self-sustaining insurance programs and assessed OSMRE's oversight of those efforts.

  6. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    9. Average Sales Price of Coal by State and Underground Mining Method, 2015 (dollars per short ton) Coal-Producing State Continuous 1 Conventional and Other 2 Longwall 3 Total Alabama 87.26 - 84.48 84.59 Arkansas w - - w Colorado w - w 34.32 Illinois 35.73 w 42.92 w Indiana 49.05 - - 49.05 Kentucky Total w w - 55.29 Kentucky (East) w w - 63.44 Kentucky (West) 51.15 - - 51.15 Maryland w - - w Montana - - w w New Mexico - - w w Ohio w - w 47.47 Oklahoma w - - w Pennsylvania Total 61.92 - 55.03

  7. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    2. Underground Coal Mining Productivity by State and Mining Method, 2015 (short tons produced per employee hour) Coal-Producing State, Region 1 and Mine Type Continuous 2 Conventional and Other 3 Longwall 4 Total Alabama 0.67 - 1.74 1.63 Arkansas 0.56 - - 0.56 Colorado 3.18 - 5.44 5.21 Illinois 4.49 7.95 7.83 6.24 Indiana 3.70 - - 3.70 Kentucky Total 2.78 1.91 - 2.77 Kentucky (East) 1.83 1.91 - 1.83 Kentucky (West) 3.75 - - 3.75 Maryland 1.83 - - 1.83 Montana - - 9.49 9.49 New Mexico - - 6.83

  8. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    . Underground Coal Production by State and Mining Method, 2015 (thousand short tons) Coal-Producing State and Region 1 Continuous 2 Conventional and Other 3 Longwall 4 Total Alabama 419 - 9,478 9,897 Arkansas 91 - - 91 Colorado 815 - 12,327 13,141 Illinois 17,819 2,011 32,143 51,973 Indiana 15,589 19 - 15,608 Kentucky Total 43,216 162 - 43,378 Kentucky (East) 14,436 162 - 14,598 Kentucky (West) 28,780 - - 28,780 Maryland 599 - - 599 Montana - - 6,420 6,420 New Mexico - - 6,518 6,518 Ohio 2,209 7

  9. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    0. Average Sales Price of Coal by State, County, and Number of Mines, 2015 Coal-Producing State and County Number of Mines Sales (thousand short tons) Average Sales Price (dollars per short ton) Alabama 31 13,660 84.05 Bibb 1 w w Franklin 2 w w Jefferson 11 7,143 80.69 Shelby 2 w w Tuscaloosa 3 w w Walker 10 3,131 89.25 Winston 2 w w Alaska 1 w w Denali 1 w w Arizona 1 w w Navajo 1 w w Arkansas 1 w w Sebastian 1 w w Colorado 9 19,254 36.12 Delta 1 w w Gunnison 1 w w La Plata 1 w w Moffat 2 w w

  10. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    3. Average Sales Price of U.S. Coal by State and Disposition, 2015 (dollars per short ton) Coal-Producing State Open Market 1 Captive 2 Total 3 Alabama w w 84.05 Alaska w - w Arizona w - w Arkansas w - w Colorado 31.28 43.30 36.12 Illinois w w 40.77 Indiana 47.08 44.56 46.12 Kansas w - w Kentucky Total 54.61 58.41 55.01 Kentucky (East) 60.56 58.41 60.84 Kentucky (West) 50.10 - 50.10 Louisiana w - w Maryland 48.34 - 53.01 Mississippi w w w Missouri w - w Montana w w 17.44 New Mexico w w w North

  11. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    8. Coal Disposition by State, 2015 (thousand short tons) Coal-Producing State Open Market Sales 1 Captive Sales / Transactions 2 Exports 3 Total Alabama 5,102 3 8,555 13,660 Alaska 1,013 - 149 1,162 Arizona 6,574 - - 6,574 Arkansas 193 - - 193 Colorado 8,590 9,023 1,641 19,254 Illinois 36,491 10,792 9,757 57,040 Indiana 21,548 13,175 20 34,744 Kansas 199 - - 199 Kentucky Total 56,928 218 2,545 59,691 Kentucky (East) 24,540 218 2,545 27,304 Kentucky (West) 32,388 - - 32,388 Louisiana 3,647 - -

  12. Research on thermophoretic and inertial aspects of ash particle deposition on heat exchanger surfaces in coal-fired equipment

    SciTech Connect (OSTI)

    Rosner, D.E.

    1988-12-01

    A real-time laser light-reflectivity technique is being used to study simultaneous thermophoretic and inertial influences on the deposition behavior of MgO particles produced via ultrasonic nebulization (submicrometer range). The deposition surface (a concave platinum ribbon) is exposed to a high velocity/temperature jet of alkali sulfate-free combustion products exiting from a seeded (C3[sub 3]H[sub 8]/air) microcombustor (110 cm[sup 3]). The reflectivity data were calibrated against deposition rates obtained from SEM pictures of the target, and were normalized with the nominal particle feed rate, in order to obtain the mass transfer Stanton number, St[sub m], trends depicted in Figure 1. For the submicron (ca. 0.7[mu]m) particles inertial effects appear to set in at Stokes (Stk) numbers of O(10[sup [minus]2]) (an order of magnitude lower than the ones needed for pure'' inertial impaction), affecting significantly the dominant thermophoretic deposition mechanism. A first order (in Stk) theoretical analysis of the problem in which particle inertia is treated as equivalent to pressure diffusion,'' cannot explain the observed dependence of the deposition rate on Stk. We are presently formulating a Lagrangian approach, valid for all values of Stk, in order to interpret these data. In addition, a Single Particle Counter (SPC) and Transit Time Velocimeter (TTV), are being developed, to allow more precise measurements of particle feed rates and velocities.

  13. Cost-Effectiveness of ASHRAE Standard 90.1-2010 for the State of Arkansas

    SciTech Connect (OSTI)

    Hart, Philip R.; Rosenberg, Michael I.; Xie, YuLong; Zhang, Jian; Richman, Eric E.; Elliott, Douglas B.; Loper, Susan A.; Myer, Michael

    2013-11-26

    Moving to the ANSI/ASHRAE/IES Standard 90.1-2010 version from the Base Code (90.1-2007) is cost-effective for all building types and climate zones in the State of Arkansas.

  14. Arkansas Regional High Science Bowl | U.S. DOE Office of Science (SC)

    Office of Science (SC) [DOE]

    Arkansas Regional High Science Bowl National Science Bowl® (NSB) NSB Home About Regional Competitions Rules, Forms, and Resources High School Regionals Middle School Regionals National Finals Volunteers Key Dates Frequently Asked Questions News Media Contact Us WDTS Home Contact Information National Science Bowl® U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 E: Email Us High School Regionals Arkansas Regional High Science Bowl Print Text

  15. Arkansas Regional Middle School Science Bowl | U.S. DOE Office of Science

    Office of Science (SC) [DOE]

    (SC) Arkansas Regional Middle School Science Bowl National Science Bowl® (NSB) NSB Home About Regional Competitions Rules, Forms, and Resources High School Regionals Middle School Regionals National Finals Volunteers Key Dates Frequently Asked Questions News Media Contact Us WDTS Home Contact Information National Science Bowl® U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 E: Email Us Middle School Regionals Arkansas Regional Middle

  16. Arkansas Natural Gas Plant Liquids, Reserves Based Production (Million

    Gasoline and Diesel Fuel Update

    Commercial Consumers (Number of Elements) Arkansas Natural Gas Number of Commercial Consumers (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 60 60,355 61,630 61,848 1990's 61,530 61,731 62,221 62,952 63,821 65,490 67,293 68,413 69,974 71,389 2000's 72,933 71,875 71,530 71,016 70,655 69,990 69,475 69,495 69,144 69,043 2010's 67,987 67,815 68,765 68,791 69,011 69,265 - = No Data Reported; -- = Not Applicable; NA = Not Available; W =

  17. Arkansas Dry Natural Gas Reserves Extensions (Billion Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Extensions (Billion Cubic Feet) Arkansas Dry Natural Gas Reserves Extensions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 23 37 108 1980's 138 106 220 296 261 138 100 93 110 71 1990's 35 27 88 76 92 59 57 96 45 27 2000's 14 119 111 125 170 281 491 1,148 1,754 4,627 2010's 3,082 2,093 1,399 3,419 1,505 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date:

  18. Arkansas Dry Natural Gas Reserves New Field Discoveries (Billion Cubic

    U.S. Energy Information Administration (EIA) (indexed site)

    Feet) New Field Discoveries (Billion Cubic Feet) Arkansas Dry Natural Gas Reserves New Field Discoveries (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 4 1 3 1980's 5 17 7 4 2 13 0 0 0 0 1990's 3 0 1 0 1 0 2 0 0 1 2000's 0 0 24 0 4 4 7 0 0 0 2010's 0 0 0 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016

  19. Arkansas Natural Gas Lease Fuel Consumption (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Fuel Consumption (Million Cubic Feet) Arkansas Natural Gas Lease Fuel Consumption (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 4,402 4,956 5,362 4,353 5,720 5,469 3,940 1990's 6,464 1,218 5,570 6,053 4,283 5,083 5,124 6,349 7,980 1,822 2000's 1,468 849 536 615 1,364 1,288 1,351 1,502 2,521 4,091 2010's 5,340 6,173 6,599 6,605 6,469 5,821 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of

  20. Arkansas Natural Gas Number of Commercial Consumers (Number of Elements)

    U.S. Energy Information Administration (EIA) (indexed site)

    Commercial Consumers (Number of Elements) Arkansas Natural Gas Number of Commercial Consumers (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 60 60,355 61,630 61,848 1990's 61,530 61,731 62,221 62,952 63,821 65,490 67,293 68,413 69,974 71,389 2000's 72,933 71,875 71,530 71,016 70,655 69,990 69,475 69,495 69,144 69,043 2010's 67,987 67,815 68,765 68,791 69,011 69,265 - = No Data Reported; -- = Not Applicable; NA = Not Available; W =

  1. Arkansas Natural Gas Number of Industrial Consumers (Number of Elements)

    U.S. Energy Information Administration (EIA) (indexed site)

    Industrial Consumers (Number of Elements) Arkansas Natural Gas Number of Industrial Consumers (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 1 1,410 1,151 1,412 1990's 1,396 1,367 1,319 1,364 1,417 1,366 1,488 1,336 1,300 1,393 2000's 1,414 1,122 1,407 1,269 1,223 1,120 1,120 1,055 1,104 1,025 2010's 1,079 1,133 990 1,020 1,009 1,023 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of

  2. Arkansas Natural Gas Number of Residential Consumers (Number of Elements)

    U.S. Energy Information Administration (EIA) (indexed site)

    Residential Consumers (Number of Elements) Arkansas Natural Gas Number of Residential Consumers (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 475 480,839 485,112 491,110 1990's 488,850 495,148 504,722 513,466 521,176 531,182 539,952 544,460 550,017 554,121 2000's 560,055 552,716 553,192 553,211 554,844 555,861 555,905 557,966 556,746 557,355 2010's 549,970 551,795 549,959 549,764 549,034 550,108 - = No Data Reported; -- = Not Applicable;

  3. Arkansas Natural Gas Pipeline and Distribution Use (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    (Million Cubic Feet) Arkansas Natural Gas Pipeline and Distribution Use (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's 11,591 10,192 8,979 2000's 8,749 8,676 7,854 8,369 7,791 8,943 10,630 10,235 9,927 9,125 2010's 9,544 11,286 10,606 11,437 11,680 8,795 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016

  4. Arkansas Natural Gas Plant Liquids Production (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Liquids Production (Million Cubic Feet) Arkansas Natural Gas Plant Liquids Production (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 3,499 3,667 3,475 1970's 3,235 2,563 1,197 1,118 952 899 823 674 883 1,308 1980's 1,351 1,327 1,287 1,258 1,200 1,141 1,318 1,275 1,061 849 1990's 800 290 413 507 553 488 479 554 451 431 2000's 377 408 395 320 254 231 212 162 139 168 2010's 213 268 424 486 582 551 - = No Data Reported; -- = Not Applicable;

  5. Arkansas Natural Gas Total Consumption (Million Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Total Consumption (Million Cubic Feet) Arkansas Natural Gas Total Consumption (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's 260,113 266,485 252,853 2000's 251,329 227,943 242,325 246,916 215,124 213,609 233,868 226,439 234,901 244,193 2010's 271,515 284,076 296,132 282,120 268,444 290,125 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016

  6. Arkansas Quantity of Production Associated with Reported Wellhead Value

    U.S. Energy Information Administration (EIA) (indexed site)

    (Million Cubic Feet) Quantity of Production Associated with Reported Wellhead Value (Million Cubic Feet) Arkansas Quantity of Production Associated with Reported Wellhead Value (Million Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 78,097 75,575 86,552 68,206 42,688 102,046 42,226 1990's 99,456 83,864 85,177 122,596 24,326 180,117 76,671 71,449 61,012 54,382 2000's 55,057 16,901 161,871 166,329 183,299 190,533 193,491 269,886 446,551 680,613

  7. Arkansas Natural Gas % of Total Residential Deliveries (Percent)

    U.S. Energy Information Administration (EIA) (indexed site)

    % of Total Residential Deliveries (Percent) Arkansas Natural Gas % of Total Residential Deliveries (Percent) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1990's 0.92 0.86 0.85 0.88 0.85 0.85 0.77 2000's 0.85 0.78 0.80 0.75 0.71 0.70 0.72 0.69 0.73 0.70 2010's 0.76 0.72 0.63 0.71 0.75 0.72 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 10/31/2016 Next Release Date: 11/30/2016

  8. Arkansas Nonassociated Natural Gas, Wet After Lease Separation, Reserves

    U.S. Energy Information Administration (EIA) (indexed site)

    Extensions (Billion Cubic Feet) Extensions (Billion Cubic Feet) Arkansas Nonassociated Natural Gas, Wet After Lease Separation, Reserves Extensions (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 110 1980's 137 106 219 281 260 138 99 93 110 72 1990's 35 26 88 77 93 57 56 96 45 27 2000's 14 120 111 125 170 281 492 1,149 1,755 4,629 2010's 3,079 2,094 1,388 3,419 1,506 - = No Data Reported; -- = Not Applicable; NA = Not Available; W =

  9. Arkansas Natural Gas Liquids Lease Condensate, Proved Reserves (Million

    U.S. Energy Information Administration (EIA) (indexed site)

    Barrels) (Million Barrels) Arkansas Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 1 1980's 1 1 3 2 2 2 1 1 2 1 1990's 2 2 2 2 3 3 2 4 2 2 2000's 2 2 1 1 1 1 2 1 1 1 2010's 2 2 2 1 2 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 11/19/2015 Next Release Date: 12/31/2016 Referring Pages: Lease

  10. Arkansas Natural Gas, Wet After Lease Separation Proved Reserves (Billion

    U.S. Energy Information Administration (EIA) (indexed site)

    Cubic Feet) Gas, Wet After Lease Separation Proved Reserves (Billion Cubic Feet) Arkansas Natural Gas, Wet After Lease Separation Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 1,725 1980's 1,796 1,821 1,974 2,081 2,240 2,032 2,011 2,018 2,000 1,782 1990's 1,739 1,672 1,752 1,555 1,610 1,566 1,472 1,479 1,332 1,546 2000's 1,584 1,619 1,654 1,666 1,837 1,967 2,271 3,306 5,628 10,872 2010's 14,181 16,374 11,039 13,524

  11. Arkansas Nonassociated Natural Gas, Wet After Lease Separation, Proved

    U.S. Energy Information Administration (EIA) (indexed site)

    Reserves (Billion Cubic Feet) Proved Reserves (Billion Cubic Feet) Arkansas Nonassociated Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 1,559 1980's 1,602 1,637 1,800 1,887 2,051 1,875 1,861 1,873 1,843 1,637 1990's 1,672 1,536 1,619 1,462 1,525 1,462 1,383 1,423 1,294 1,505 2000's 1,545 1,589 1,616 1,629 1,797 1,921 2,227 3,269 5,616 10,852 2010's 14,152 16,328 10,957 13,389

  12. Adsorption of various alcohols on Illinois No. 6 coal in aqueous solutions

    SciTech Connect (OSTI)

    Kwon, K.C.; Rigby, R.R.

    1993-07-01

    Hydrophilicity, hydrophobicity and aromacity of Illinois {number_sign}6 coal in water are relatively determined by evaluating equilibrium physical/chemical adsorption of probe compounds on the coal. Experiments on equilibrium adsorption loadings of various additives on 60--200 mesh Illinois {number_sign}6 coal (DECS-2; Randolph county) were performed to investigate relatively surface properties of the coal at 25{degree}C. The additives include various alcohols, alkanes and aromatic compounds. The main objectives of this research are to evaluate relatively surface properties of raw coals, treated coals and coal minerals with the inverse liquid chromatography technique, using various probe compounds, to analyze flotation recoveries of coals with a micro-flotation apparatus in order to relate coal floatability to evaluated coal surface properties, and to delineate roles of coal-cleaning/handling additives with the inverse liquid chromatography technique.

  13. Coal Transportation Rate Sensitivity Analysis

    Reports and Publications

    2005-01-01

    On December 21, 2004, the Surface Transportation Board (STB) requested that the Energy Information Administration (EIA) analyze the impact of changes in coal transportation rates on projected levels of electric power sector energy use and emissions. Specifically, the STB requested an analysis of changes in national and regional coal consumption and emissions resulting from adjustments in railroad transportation rates for Wyoming's Powder River Basin (PRB) coal using the National Energy Modeling System (NEMS). However, because NEMS operates at a relatively aggregate regional level and does not represent the costs of transporting coal over specific rail lines, this analysis reports on the impacts of interregional changes in transportation rates from those used in the Annual Energy Outlook 2005 (AEO2005) reference case.

  14. Liquefaction of calcium-containing subbituminous coals and coals of lower rank

    DOE Patents [OSTI]

    Gorbaty, Martin L.; Taunton, John W.

    1980-01-01

    A process for the treatment of a calcium-containing subbituminous coal and coals of lower rank to form insoluble, thermally stable calcium salts which remain within the solids portions of the residue on liquefaction of the coal, thereby suppressing the formation scale, made up largely of calcium carbonate deposits, e.g., vaterite, which normally forms within the coal liquefaction reactor (i.e., coal liquefaction zone), e.g., on reactor surfaces, lines, auxiliary equipment and the like. A solution of a compound or salt characterized by the formula MX, where M is a Group IA metal of the Periodic Table of the Elements, and X is an anion which is capable of forming water-insoluble, thermally stable calcium compounds, is maintained in contact with a particulate coal feed sufficient to impregnate said salt or compound into the pores of the coal. On separation of the impregnated particulate coal from the solution, the coal can be liquefied in a coal liquefaction reactor (reaction zone) at coal liquefaction conditions without significant formation of vaterite or other forms of calcium carbonate on reactor surfaces, auxiliary equipment and the like; and the Group IA metal which remains within the liquefaction bottoms catalyzes the reaction when the liquefaction bottoms are subjected to a gasification reaction.

  15. Coal industry annual 1997

    SciTech Connect (OSTI)

    1998-12-01

    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.

  16. Coal Industry Annual 1995

    SciTech Connect (OSTI)

    1996-10-01

    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.

  17. Coal industry annual 1996

    SciTech Connect (OSTI)

    1997-11-01

    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.

  18. Explosive fluid transmitted shock method for mining deeply buried coal

    DOE Patents [OSTI]

    Archibald, Paul B.

    1976-06-22

    A method for recovering coal from deeply buried deposits comprising drilling a hole down into a coal seam, filling the hole with water, and periodically detonating an explosive charge at the bottom of the water-filled hole. The water transmits the explosive shock wave to the face of the coal seam, thereby fracturing and dislodging the coal. The resulting suspension of loose coal in water is then pumped to the surface where the coal is recovered and the water is recycled to the mining operation.

  19. Microbial solubilization of coal

    DOE Patents [OSTI]

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

    1988-01-21

    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.

  20. Clean coal

    SciTech Connect (OSTI)

    Liang-Shih Fan; Fanxing Li

    2006-07-15

    The article describes the physics-based techniques that are helping in clean coal conversion processes. The major challenge is to find a cost- effective way to remove carbon dioxide from the flue gas of power plants. One industrially proven method is to dissolve CO{sub 2} in the solvent monoethanolamine (MEA) at a temperature of 38{sup o}C and then release it from the solvent in another unit when heated to 150{sup o}C. This produces CO{sub 2} ready for sequestration. Research is in progress with alternative solvents that require less energy. Another technique is to use enriched oxygen in place of air in the combustion process which produces CO{sub 2} ready for sequestration. A process that is more attractive from an energy management viewpoint is to gasify coal so that it is partially oxidized, producing a fuel while consuming significantly less oxygen. Several IGCC schemes are in operation which produce syngas for use as a feedstock, in addition to electricity and hydrogen. These schemes are costly as they require an air separation unit. Novel approaches to coal gasification based on 'membrane separation' or chemical looping could reduce the costs significantly while effectively capturing carbon dioxide. 1 ref., 2 figs., 1 photo.

  1. Hydrogen production with coal using a pulverization device

    DOE Patents [OSTI]

    Paulson, Leland E.

    1989-01-01

    A method for producing hydrogen from coal is described wherein high temperature steam is brought into contact with coal in a pulverizer or fluid energy mill for effecting a steam-carbon reaction to provide for the generation of gaseous hydrogen. The high temperature steam is utilized to drive the coal particles into violent particle-to-particle contact for comminuting the particulates and thereby increasing the surface area of the coal particles for enhancing the productivity of the hydrogen.

  2. Coal liquefaction and hydrogenation

    DOE Patents [OSTI]

    Schindler, Harvey D.; Chen, James M.

    1985-01-01

    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.

  3. By Coal Destination State

    U.S. Energy Information Administration (EIA) (indexed site)

    Destination State ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2012 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2012 Alabama _____________________________________________________________________________________________________________________________________ Table DS-1. Domestic coal

  4. By Coal Origin State

    U.S. Energy Information Administration (EIA) (indexed site)

    Origin State ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2012 U.S. Energy Information Administration | Quarterly Coal Distribution Report 1st Quarter 2012 Alabama ___________________________________________________________________________________________________________________________________ Table OS-1. Domestic coal

  5. Coal industry annual 1993

    SciTech Connect (OSTI)

    Not Available

    1994-12-06

    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.

  6. Coal and Coal-Biomass to Liquids

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    and Coal-Biomass to Liquids Turning coal into liquid fuels like gasoline, diesel and jet fuel, with biomass to reduce carbon dioxide emissions, is the main goal of the Coal and Coal-Biomass to Liquids program. The program also aims to reduce the cost of these low-emission fuels, and will take advantage of carbon capture and sequestration technologies to further reduce greenhouse gas emissions. Other Coal and Coal-Biomass to Liquids (C&CBTL) Program Activities: The C&CBTL Program

  7. By Coal Origin State

    U.S. Energy Information Administration (EIA) (indexed site)

    Table OS-1. Domestic coal distribution, by origin State, 1st Quarter 2010 Origin: Alabama (thousand short tons) Coal Destination State...

  8. By Coal Origin State

    U.S. Energy Information Administration (EIA) (indexed site)

    Table OS-1. Domestic coal distribution, by origin State, 4th Quarter 2011 Origin: Alabama (thousand short tons) Coal Destination State...

  9. By Coal Destination State

    U.S. Energy Information Administration (EIA) (indexed site)

    Table DS-1. Domestic coal distribution, by destination State, 3rd Quarter 2011 Destination: Alabama (thousand short tons) Coal Origin State...

  10. By Coal Origin State

    U.S. Energy Information Administration (EIA) (indexed site)

    Table OS-1. Domestic coal distribution, by origin State, 3rd Quarter 2011 Origin: Alabama (thousand short tons) Coal Destination State...

  11. By Coal Destination State

    U.S. Energy Information Administration (EIA) (indexed site)

    Table DS-1. Domestic coal distribution, by destination State, 4th Quarter 2011 Destination: Alabama (thousand short tons) Coal Origin State...

  12. By Coal Destination State

    U.S. Energy Information Administration (EIA) (indexed site)

    Table DS-1. Domestic coal distribution, by destination State, 3rd Quarter 2010 Destination: Alabama (thousand short tons) Coal Origin State...

  13. By Coal Origin State

    U.S. Energy Information Administration (EIA) (indexed site)

    Table OS-1. Domestic coal distribution, by origin State, 4th Quarter 2010 Origin: Alabama (thousand short tons) Coal Destination State...

  14. By Coal Origin State

    U.S. Energy Information Administration (EIA) (indexed site)

    Table OS-1. Domestic coal distribution, by origin State, 2nd Quarter 2011 Origin: Alabama (thousand short tons) Coal Destination State...

  15. By Coal Origin State

    U.S. Energy Information Administration (EIA) (indexed site)

    Table OS-1. Domestic coal distribution, by origin State, 3rd Quarter 2010 Origin: Alabama (thousand short tons) Coal Destination State...

  16. By Coal Destination State

    U.S. Energy Information Administration (EIA) (indexed site)

    Table DS-1. Domestic coal distribution, by destination State, 4th Quarter 2010 Destination: Alabama (thousand short tons) Coal Origin State...

  17. By Coal Origin State

    U.S. Energy Information Administration (EIA) (indexed site)

    Table OS-1. Domestic coal distribution, by origin State, 1st Quarter 2011 Origin: Alabama (thousand short tons) Coal Destination State...

  18. Coal Distribution Database, 2006

    U.S. Energy Information Administration (EIA) (indexed site)

    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...

  19. By Coal Destination State

    U.S. Energy Information Administration (EIA) (indexed site)

    Table DS-1. Domestic coal distribution, by destination State, 1st Quarter 2011 Destination: Alabama (thousand short tons) Coal Origin State...

  20. By Coal Origin State

    U.S. Energy Information Administration (EIA) (indexed site)

    Table OS-1. Domestic coal distribution, by origin State, 2nd Quarter 2010 Origin: Alabama (thousand short tons) Coal Destination State...

  1. By Coal Destination State

    U.S. Energy Information Administration (EIA) (indexed site)

    Table DS-1. Domestic coal distribution, by destination State, 1st Quarter 2010 Destination: Alabama (thousand short tons) Coal Origin State...

  2. By Coal Destination State

    U.S. Energy Information Administration (EIA) (indexed site)

    Table DS-1. Domestic coal distribution, by destination State, 2nd Quarter 2010 Destination: Alabama (thousand short tons) Coal Origin State...

  3. By Coal Destination State

    U.S. Energy Information Administration (EIA) (indexed site)

    Table DS-1. Domestic coal distribution, by destination State, 2nd Quarter 2011 Destination: Alabama (thousand short tons) Coal Origin State...

  4. Annual Coal Distribution Report

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Annual Coal Distribution Report Release Date: April 16, 2015 | Next Release Date: March 2016 | full report | RevisionCorrection Revision to the Annual Coal Distribution Report ...

  5. U.S. Energy Information Administration (EIA) (indexed site)

    Arkansas Arkansas

  6. H. R. 3385: A bill to amend title V of the Surface Mining Control and Reclamation Act of 1977 to assist small surface coal mine operators, and for other purposes, introduced in the US House of Representatives, One Hundred Second Congress, First Session, September 24, 1991

    SciTech Connect (OSTI)

    Not Available

    1991-01-01

    For surface coal mines with less than an annual production of 300,000 tons, the cost of the following activities shall be assumed by the regulatory authority upon request of the operator in connection with a permit application: determination of probable hydrologic consequences required by law; development of cross-section maps and plans required; geologic drilling and statement of results of test borings and core samplings required; collection of archeological information required; pre-blast surveys; collection of site-specific resource information and production of protection and enhancement plans for fish and wildlife habitats and other environmental values required; collection and analysis of geological and hydrologic data requested by the operator. If annual production during the 12 months immediately following the date on which the operator is issued a surface coal mining and reclamation permit exceeds 300,000 tons, the operator is required to reimburse the regulatory authority for the cost of the service rendered.

  7. Coal liquefaction

    DOE Patents [OSTI]

    Schindler, Harvey D.

    1985-01-01

    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.

  8. Arkansas Natural Gas Pipeline and Distribution Use Price (Dollars per

    U.S. Energy Information Administration (EIA) (indexed site)

    Thousand Cubic Feet) Price (Dollars per Thousand Cubic Feet) Arkansas Natural Gas Pipeline and Distribution Use Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.18 0.18 0.18 1970's 0.19 0.22 0.24 0.26 0.30 0.43 0.52 0.71 0.86 1.12 1980's 1.78 2.12 2.63 2.94 2.97 2.78 2.46 2.64 2.07 2.30 1990's 2.17 2.06 1.78 1.64 1.61 1.45 2.41 2.42 1.58 1.38 2000's 2.41 4.09 NA -- -- -- - = No Data Reported; -- = Not Applicable; NA

  9. Arkansas Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)

    U.S. Energy Information Administration (EIA) (indexed site)

    Wellhead Price (Dollars per Thousand Cubic Feet) Arkansas Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1960's 0.15 0.16 0.16 1970's 0.16 0.17 0.17 0.18 0.26 0.35 0.53 0.58 0.75 0.96 1980's 0.70 1.81 2.13 2.29 2.54 2.55 2.51 2.29 1.94 2.41 1990's 2.06 1.92 2.15 2.81 2.65 3.02 3.82 4.03 3.92 4.10 2000's 5.23 4.99 4.43 5.17 5.68 7.26 6.43 6.61 8.72 3.43 2010's 3.84 - = No Data Reported; -- = Not Applicable;

  10. Arkansas Natural Gas in Underground Storage (Working Gas) (Million Cubic

    U.S. Energy Information Administration (EIA) (indexed site)

    Feet) Working Gas) (Million Cubic Feet) Arkansas Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 8,676 8,646 8,608 8,644 8,745 9,217 9,744 10,226 10,505 10,532 10,454 10,227 1991 8,296 7,930 7,609 7,414 7,545 7,884 8,371 8,385 8,385 8,385 7,756 7,093 1992 6,440 5,922 5,569 5,501 5,499 6,009 6,861 7,525 7,959 7,883 7,656 7,166 1993 6,541 5,752 5,314 5,204 4,696 4,969 4,969 4,969 4,969 4,897 4,421 3,711 1994 2,383

  11. MOLECULAR ACCESSIBILITY IN OXIDIZED AND DRIED COALS

    SciTech Connect (OSTI)

    Lowell D. Kispert

    1999-07-01

    Changes in physical and chemical structure of the micropore system in eight solvent swelled Argonne Premium Coal Sample (APCS) coals upon weathering were studied using the EPR spin probe method. Spin probes, which are allowed to diffuse into the coal structure during swelling, are trapped when the swelling solvent is removed. Excess spin probes are removed from the coal surface and larger pores so that only the presence of spin probes trapped in pores which closely approximate the size of the spin probe are detected. Detailed explanations and illustrations of the experimental procedure used are given. Careful examination of the weathering process on coal as a function of rank was accomplished using the EPR spin probe method. The retention of spin probes in eight APCS coals provided valuable insight into both the loss of water and the oxidation which occur during the weathering process. The results could be explained in terms of the autoxidation process observed in other polymeric systems. It was shown that initial oxidation of coal can result in increased cross-linking in the coal structure. As the oxidation process continued, both the covalent and hydrogen bonded character of the coal were significantly altered. The retention character of some coals during oxidation was shown to change by as much as three orders of magnitude. Experiments were performed to study the effects of short term oxidation and dehydration on coal structure by exposing the coal samples to argon or oxygen for time periods up to five minutes. The results indicate that the structure of coal is extremely sensitive to environmental changes and exhibits significant changes in as little as 30 seconds. Exposure of Illinois No.6 coal to argon or oxygen for 30 seconds caused a decrease in the retention of polar spin probes by as much as an order of magnitude. The studies presented here suggest that the structure of coal is dynamic in nature, and has an intimate relationship with the nature of its

  12. Improved coal-interface detector. Final technical report, December 1981

    SciTech Connect (OSTI)

    Roe, K.C.; Wittmann, R.C.

    1981-12-01

    In many underground coal mines a specified thickness of coal is required to be left in the roof as the coal is mined to maintain roof stability and prevent exposure of the overburden to air that might cause it to deteriorate. Determining the thickness of the coal left in the roof during mining is important for safety reasons and to maximize profit to the mine operators. The system (FM/CW radar) described in this report calculates the coal thickness from the time delay measurements of electromagnetic waves reflected from the bottom and top surfaces of the roof coal. This report describes the theory, design, construction and testing of an electromagnetic coal interface detector. An above ground test facility constructed to evaluate the coal interface detector is also described.

  13. Annual Coal Distribution

    Reports and Publications

    2015-01-01

    The Annual Coal Distribution Report (ACDR) 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. All data for the report year are final and this report supersedes all data in the quarterly distribution reports.

  14. Coal Data Browser

    Gasoline and Diesel Fuel Update

    ... Petroleum Hydrocarbon Gas Liquids Natural Gas Coal Nuclear Electricity Hydropower Biofuels: Ethanol & Biodiesel Wind Geothermal Solar ...

  15. Coal production 1988

    SciTech Connect (OSTI)

    Not Available

    1989-11-22

    Coal Production 1988 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. This report also includes data for the demonstrated reserve base of coal in the United States on January 1, 1989. 5 figs., 45 tabs.

  16. Table 6. Electric power delivered fuel prices and quality for coal, petroleum, n

    U.S. Energy Information Administration (EIA) (indexed site)

    Arkansas" "Item", 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, 1994, 1993, 1992, 1991, 1990 "Coal (dollars per million Btu)",2.37,2.35,2.22,1.93,1.73,1.69,1.74,1.6,1.47,1.46,1.23,1.2,0.84,0.87,1.42,1.46,1.47,1.64,1.5,1.61,1.6,1.7,1.65,1.6,1.61 "Average heat value (Btu per

  17. Characterization of seven United States coal regions. The development of optimal terrace pit coal mining systems

    SciTech Connect (OSTI)

    Wimer, R.L.; Adams, M.A.; Jurich, D.M.

    1981-02-01

    This report characterizes seven United State coal regions in the Northern Great Plains, Rocky Mountain, Interior, and Gulf Coast coal provinces. Descriptions include those of the Fort Union, Powder River, Green River, Four Corners, Lower Missouri, Illinois Basin, and Texas Gulf coal resource regions. The resource characterizations describe geologic, geographic, hydrologic, environmental and climatological conditions of each region, coal ranks and qualities, extent of reserves, reclamation requirements, and current mining activities. The report was compiled as a basis for the development of hypothetical coal mining situations for comparison of conventional and terrace pit surface mining methods, under contract to the Department of Energy, Contract No. DE-AC01-79ET10023, entitled The Development of Optimal Terrace Pit Coal Mining Systems.

  18. Economic Implementation and Optimization of Secondary Oil Recovery Process: St. Mary West Field, Lafayette County, Arkansas

    SciTech Connect (OSTI)

    Brock P.E., Cary D.

    2003-03-10

    The purpose of this study was to investigate the economic appropriateness of several enhanced oil recovery processes that are available to a small mature oil field located in southwest Arkansas and to implement the most economic efficient process evaluated. The State of Arkansas natural resource laws require that an oilfield is to be unitized before conducting a secondary recovery project. This requires all properties that can reasonably be determined to include the oil productive reservoir must be bound together as one common lease by a legal contract that must be approved to be fair and equitable to all property owners within the proposed unit area.

  19. Coal | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    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 FE-Supported

  20. S. 1768: A Bill to amend title V of the Surface Mining Control and Reclamation Act of 1977 to assist small surface coal mine operators, and for other purposes. Introduced in the Senate of the United States, One Hundredth First Congress, First Session, October 18, 1989

    SciTech Connect (OSTI)

    Not Available

    1989-01-01

    If the probable total annual production at all locations of a coal surface mining operator does not exceed 300,000 tons, the cost of the following activities, required by subsections of the Surface Mining Control and Reclamation Act, will be assumed by the regulatory authority upon written request: determination of hydrologic consequences, development of cross-section maps and plans, geologic drilling and statement of results of test borings and core samplings, collection of archeological information, pre-blast surveys, collection of site-specific resource information and production of protection and enhancement plans for fish and wildlife habitats, and the collection and analysis of geological and hydrologic data.

  1. Coal data: A reference

    SciTech Connect (OSTI)

    Not Available

    1995-02-01

    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.

  2. Mechanisms and kinetics of coal hydrogenation

    SciTech Connect (OSTI)

    Baldwin, R M; Furlong, M W

    1981-05-01

    Colorado School of Mines is engaged in an experimental program to develop comprehensive models for the effects of coal composition upon the kinetics and mechanisms of coal hydrogenation, for the effects of mineral matter additives (disposable catalysts) upon kinetics and mechanisms of coal hydrogenation, and for the kinetics and mechanisms of the hydrogenation of coal derived products such as preasphaltenes, and asphaltenes. Experimental work was completed on a suite of bituminous coals, thus completing the initial phase of the coal reactivity study. Eleven of the 14 coals of the suite were successfully run in duplicate. Conversion to THF solubles was correlated well by pseudo-second order kinetics. The resulting kinetic rate constants correlated with H/C ratio, mean-max vitrinite reflectance, and a specially-defined fraction of reactive macerals. The data did not correlate well with O/C ratios of the parent coals. Computer-derived statistical fits of various kinetic models were limited in their effectiveness at fitting the experimental data. Experimental work on the first phase of the disposal catalyst studies was completed. Statistical significance testing of the experimental data showed: fractional conversion and yield of light hydrocarbon products increased with time; and mineral properties of the additives were more significant in increasing overall conversion than the additive surface areas. The relative effects of the additives are given.

  3. Coal production 1985

    SciTech Connect (OSTI)

    Not Available

    1986-11-07

    Coal Production 1985 provides comprehensive information about US coal production, the number of mines, prices, productivity, employment, productive capacity, reserves, and stocks to a wide audience including Congress, Federal and State agencies, the coal industry, and the general public. All data presented in this report, except the total production table presented in the Highlights section, and the demonstrated reserve base data presented in Appendix A, were obtained from form EIA-7A, ''Coal Production Report,'' from companies owning mining operations that produced, processed, or prepared 10,000 or more short tons of coal in 1985. The data cover 4105 of the 5477 US coal mining operations active in 1985. These mining operations accounted for 99.4% of total US coal production and represented 74.9% of all US coal mining operations in 1985. This report also includes data for the demonstrated reserve vase of coal in the US on January 1, 1985.

  4. Conformance to Regulatory Guide 1. 97, Arkansas Nuclear One, Unit No. 1

    SciTech Connect (OSTI)

    Stoffel, J.W.

    1985-08-01

    This EG and G Idaho, Inc., report reviews the submittals for Regulatory Guide 1.97 for Unit No. 1 of Arkansas Nuclear One and identifies areas of nonconformance to the regulatory guide. Exceptions to Regulatory Guide 1.97 are evaluated and those areas where sufficient basis for acceptability is not provided are identified.

  5. First Arkansas Mill of its kind turns sawdust into stove pellets

    SciTech Connect (OSTI)

    1994-12-31

    This article describes a new mill in Arkansas that converts waste sawdust into pellets for use in a new kind of stove like the ones two Resource Conservation and Development Districts placed in 20 districts as a demonstration project. A review of the wood pellet industry and of this particular project is provided.

  6. Coal feed lock

    DOE Patents [OSTI]

    Pinkel, I. Irving

    1978-01-01

    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.

  7. Upgraded Coal Interest Group

    SciTech Connect (OSTI)

    Evan Hughes

    2009-01-08

    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.

  8. Apparatus and method for solar coal gasification

    DOE Patents [OSTI]

    Gregg, David W.

    1980-01-01

    Apparatus for using focused solar radiation to gasify coal and other carbonaceous materials. Incident solar radiation is focused from an array of heliostats onto a tower-mounted secondary mirror which redirects the focused solar radiation down through a window onto the surface of a vertically-moving bed of coal, or a fluidized bed of coal, contained within a gasification reactor. The reactor is designed to minimize contact between the window and solids in the reactor. Steam introduced into the gasification reactor reacts with the heated coal to produce gas consisting mainly of carbon monoxide and hydrogen, commonly called "synthesis gas", which can be converted to methane, methanol, gasoline, and other useful products. One of the novel features of the invention is the generation of process steam at the rear surface of the secondary mirror.

  9. Superfund Record of Decision (EPA Region 6): Mid-South Wood Products, Polk County, Arkansas, November 1986. First remedial action. Final report

    SciTech Connect (OSTI)

    Not Available

    1986-11-14

    The Mid-South Wood Products site is located in Polk County, Arkansas, approximately 1/2 mile southwest of Mena, Arkansas. The 57-acre site includes the following areas: the Old Plant site, the Small Old Pond and Old Pond areas, the North and South Landfarms, the landfill, Clear Lake and an existing chromated copper arsenate (CCA) treatment plant. The Old Plant site was used to treat wood with pentachlorophenol (PCP) and creosote; the Small Old Pond was the original impoundment for waste PCP and creosote. These two areas have been covered with soil. The Old Pond area was used to store PCP and creosote sludge and has since been graded and covered with soil; materials from the Old Pond were spread over the Landfarm areas and mixed into the soil; the Landfill area contains deposits of sawdust, woodchips, and other waste-wood products; Clear Lake receives runoff from all the above areas; the CCA treatment plant contains an ongoing wood-treating operation where the surface drainage from the plant is put in sumps.

  10. Coal gasification plant

    SciTech Connect (OSTI)

    Anderson, J.A.

    1980-04-01

    A coal slagging gasifier and method of operating such gasifier are improved by providing an improved slag removal orifice. The orifice is located centrally within the hearth of a gasifier of the type in which hot burner gases are directed up through the orifice to retain the slag in molten condition on the hearth and in which the slag is periodically discharged through the slag removal orifice. The slag removal orifice is formed as a substantially vertical passageway through the removable slag tap member which comprises a solid cast mass of high thermal conductivity metal having an integrally formed metal tube for circulating liquid coolant through the cast mass. The upper tundish surface of the slag tap member slopes downwardly and inwardly and merges with the slag removal orifice. The coolant tube is capable of retaining its shape without any appreciable distortion during the casting of the surrounding metal mass, extends through the cast mass, and forms a coolant conduit adjacent to the tundish surface and to the surface of the orifice passageway and spaced from these surfaces a distance of 0.25 to 5 inches. The ends of the tube project out from the mass provide a coolant inlet and outlet. In operation, coolant is circulated through the tube such that the surfaces of the cast mass in direct contact with slag and burner gases are maintained at a temperature of from 50/sup 0/C to 400/sup 0/C.

  11. International perspectives on coal preparation

    SciTech Connect (OSTI)

    1997-12-31

    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.

  12. Coal Distribution Database, 2008

    U.S. Energy Information Administration (EIA) (indexed site)

    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...

  13. Coal Distribution Database, 2008

    U.S. Energy Information Administration (EIA) (indexed site)

    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...

  14. "Annual Coal Report

    U.S. Energy Information Administration (EIA) (indexed site)

    Annual Coal Report Data Released: January 20, 2015 Data for: 2013 Re-Release Date: April 23, 2015 (CORRECTION) Annual Coal Report 2013 CorrectionUpdate April 23, 2015 The Annual ...

  15. Coal Production 1992

    SciTech Connect (OSTI)

    Not Available

    1993-10-29

    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.

  16. Microbial solubilization of coal

    DOE Patents [OSTI]

    Strandberg, Gerald W.; Lewis, Susan N.

    1990-01-01

    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.

  17. Indonesian coal mining

    SciTech Connect (OSTI)

    2008-11-15

    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.

  18. Chemicals from coal

    SciTech Connect (OSTI)

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

    2004-12-01

    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

  19. Coal gasification apparatus

    DOE Patents [OSTI]

    Nagy, Charles K.

    1982-01-01

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

  20. Method for fluorinating coal

    DOE Patents [OSTI]

    Huston, John L.; Scott, Robert G.; Studier, Martin H.

    1978-01-01

    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.

  1. Coal Fleet Aging Meeting

    U.S. Energy Information Administration (EIA) (indexed site)

    7, 2016 MEMORANDUM TO: Dr. Ian Mead Assistant Administrator for Energy Analysis Jim Diefenderfer Director, Office of Electricity, Coal, Nuclear, and Renewables Analysis FROM: Coal and Uranium Analysis Team SUBJECT: Notes from the Coal Fleet Aging Meeting held on June 14, 2016 Attendees (36) *Indicates attendance via WebEx. 2 Framing the question This adjunct meeting of the AEO Coal Working Group (CWG) was held as a follow up to the previous Future Operating and Maintenance Considerations for the

  2. NETL: Coal Gasification Systems

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Gasification Systems Coal Gasification is a process that can turn coal into clean power, chemicals, hydrogen and transportation fuels, and can be used to capture the carbon from the coal for storage or for enhanced oil recovery. To better understand the basic concepts behind Gasification, watch this short video: What is Gasification? The Gasification Systems Program is developing advanced technologies to reduce the cost and increase the efficiency of producing coal syngas. Click on the Graphic

  3. Flash hydrogenation of coal

    DOE Patents [OSTI]

    Manowitz, Bernard; Steinberg, Meyer; Sheehan, Thomas V.; Winsche, Warren E.; Raseman, Chad J.

    1976-01-01

    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.

  4. Coal production 1989

    SciTech Connect (OSTI)

    Not Available

    1990-11-29

    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.

  5. Apparatus for solar coal gasification

    DOE Patents [OSTI]

    Gregg, D.W.

    1980-08-04

    Apparatus for using focused solar radiation to gasify coal and other carbonaceous materials is described. Incident solar radiation is focused from an array of heliostats through a window onto the surface of a moving bed of coal, contained within a gasification reactor. The reactor is designed to minimize contact between the window and solids in the reactor. Steam introduced into the gasification reactor reacts with the heated coal to produce gas consisting mainly of carbon monoxide and hydrogen, commonly called synthesis gas, which can be converted to methane, methanol, gasoline, and other useful products. One of the novel features of the invention is the generation of process steam in one embodiment at the rear surface of a secondary mirror used to redirect the focused sunlight. Another novel feature of the invention is the location and arrangement of the array of mirrors on an inclined surface (e.g., a hillside) to provide for direct optical communication of said mirrors and the carbonaceous feed without a secondary redirecting mirror.

  6. Abstracts and research accomplishments of university coal research projects

    SciTech Connect (OSTI)

    Not Available

    1991-06-01

    The Principal Investigators of the grants supported by the University Coal Research Program were requested to submit abstracts and highlight accomplishments of their projects in time for distribution at a grantees conference. This book is a compilation of the material received in response to the request. Abstracts discuss the following area: coal science, coal surface science, reaction chemistry, advanced process concepts, engineering fundamentals and thermodynamics, environmental science.

  7. Coal recovery process

    DOE Patents [OSTI]

    Good, Robert J.; Badgujar, Mohan

    1992-01-01

    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.

  8. Coal Data: A reference

    SciTech Connect (OSTI)

    Not Available

    1991-11-26

    The purpose of Coal Data: A Reference is to provide basic information on the mining and use of coal, an important source of energy in the United States. The 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 ``Coal Terminology and Related Information`` provides additional information about terms mentioned in the text and introduces new terms. Topics covered are US coal deposits, resources and reserves, mining, production, employment and productivity, health and safety, preparation, transportation, supply and stocks, use, coal, the environment, and more. (VC)

  9. S. 943: A Bill to amend the Surface Mining Control and Reclamation Act of 1977 to facilitate the use of abandoned mine reclamation fund moneys to replace water supplies that have been contaminated or diminished by coal mining practices. Introduced in the Senate of the United States, One Hundred First Congress, First Session, May 9, 1989

    SciTech Connect (OSTI)

    Not Available

    1989-01-01

    The bill describes mandatory and discretionary allocations of funds to a state or Indian reservation for the purpose of water reclamation. The stated objectives of the Surface Mining Control and Reclamation Act are amended to allow 50 percent of a state's mandatory allocation to be used for the construction of public water treatment plants and distribution facilities to take the place of water supplies that have been contaminated as a result of coal practices undertaken prior to August 3, 1977, regardless of whether the contamination has been exacerbated by coal mining practices since that date, when construction would be more economical than repair of existing facilities.

  10. Modernization of Ohio's coal reserves, Phase 1

    SciTech Connect (OSTI)

    Carlton, R.W.

    1991-09-27

    The objectives of this project were to determine state-level totals of the estimated economic resource, minable reserve base, and recoverable coal in Ohio, allocated to specified ranges of sulfur and heat content. In addition, resources and reserves were to be categorized by mining methods (surface and underground). Land use and environmental restrictions, needed to determine remaining minable reserves, were to be delineated and percentages of restricted coal calculated. In context of a Phase 1, one-year project, the objectives of this project were to update Ohio's coal reserves and resources for as many counties as time allowed, and to deplete production tonnages to January 1, 1991, on the remaining coal-producing counties. For the depleted counties, only estimated economic resources were required or possible with the data available. 24 refs., 9 figs., 3 tabs.

  11. Process for hydrogenating coal and coal solvents

    DOE Patents [OSTI]

    Tarrer, Arthur R.; Shridharani, Ketan G.

    1983-01-01

    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.

  12. Microbial solubilization of coals

    SciTech Connect (OSTI)

    Campbell, J.A.; Fredrickson, J.K.; Stewart, D.L.; Thomas, B.L.; McCulloch, M.; Wilson, B.W.; Bean, R.M.

    1988-11-01

    Microbial solubilization of coal may serve as a first step in a process to convert low-rank coals or coal-derived products to other fuels or products. For solubilization of coal to be an economically viable technology, a mechanistic understanding of the process is essential. Leonardite, a highly oxidized, low-rank coal, has been solubilized by the intact microorganism, cell-free filtrate, and cell-free enzyme of /ital Coriolus versicolor/. A spectrophotometric conversion assay was developed to quantify the amount of biosolubilized coal. In addition, a bituminous coal, Illinois No. 6, was solubilized by a species of /ital Penicillium/, but only after the coal had been preoxidized in air. Model compounds containing coal-related functionalities have been incubated with the leonardite-degrading fungus, its cell-free filtrate, and purified enzyme. The amount of degradation was determined by gas chromatography and the degradation products were identified by gas chromatography/mass spectrometry. We have also separated the cell-free filtrate of /ital C. versicolor/ into a <10,000 MW and >10,000 MW fraction by ultrafiltration techniques. Most of the coal biosolubilization activity is contained in the <10,000 MW fraction while the model compound degradation occurs in the >10,000 MW fraction. The >10,000 MW fraction appears to contain an enzyme with laccase-like activity. 10 refs., 8 figs., 5 tabs.

  13. Coal sector profile

    SciTech Connect (OSTI)

    Not Available

    1990-06-05

    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.

  14. U.S. Energy Information Administration | Annual Coal Report 2015

    U.S. Energy Information Administration (EIA) (indexed site)

    7. Recoverable Coal Reserves and Average Recovery Percentage at Producing U.S. Mines by Mine Production Range and Mine Type, 2015 (million short tons) Underground Surface Total Mine Production Range (thousand short tons) Recoverable Coal Reserves Average Recovery Percentage Recoverable Coal Reserves Average Recovery Percentage Recoverable Coal Reserves Average Recovery Percentage Over 1,000 6,034 62.49 10,074 91.21 16,108 80.45 Over 500 to 1,000 400 49.35 82 83.76 483 55.22 Over 200 to 500 339

  15. Evaluation of an enhanced gravity-based fine-coal circuit for high-sulfur coal

    SciTech Connect (OSTI)

    Mohanty, M.K.; Samal, A.R.; Palit, A.

    2008-02-15

    One of the main objectives of this study was to evaluate a fine-coal cleaning circuit using an enhanced gravity separator specifically for a high sulfur coal application. The evaluation not only included testing of individual unit operations used for fine-coal classification, cleaning and dewatering, but also included testing of the complete circuit simultaneously. At a scale of nearly 2 t/h, two alternative circuits were evaluated to clean a minus 0.6-mm coal stream utilizing a 150-mm-diameter classifying cyclone, a linear screen having a projected surface area of 0.5 m{sup 2}, an enhanced gravity separator having a bowl diameter of 250 mm and a screen-bowl centrifuge having a bowl diameter of 500 mm. The cleaning and dewatering components of both circuits were the same; however, one circuit used a classifying cyclone whereas the other used a linear screen as the classification device. An industrial size coal spiral was used to clean the 2- x 0.6-mm coal size fraction for each circuit to estimate the performance of a complete fine-coal circuit cleaning a minus 2-mm particle size coal stream. The 'linear screen + enhanced gravity separator + screen-bowl circuit' provided superior sulfur and ash-cleaning performance to the alternative circuit that used a classifying cyclone in place of the linear screen. Based on these test data, it was estimated that the use of the recommended circuit to treat 50 t/h of minus 2-mm size coal having feed ash and sulfur contents of 33.9% and 3.28%, respectively, may produce nearly 28.3 t/h of clean coal with product ash and sulfur contents of 9.15% and 1.61 %, respectively.

  16. Catalyst for coal liquefaction process

    DOE Patents [OSTI]

    Huibers, Derk T. A.; Kang, Chia-Chen C.

    1984-01-01

    An improved catalyst for a coal liquefaction process; e.g., the H-Coal Process, for converting coal into liquid fuels, and where the conversion is carried out in an ebullated-catalyst-bed reactor wherein the coal contacts catalyst particles and is converted, in addition to liquid fuels, to gas and residual oil which includes preasphaltenes and asphaltenes. The improvement comprises a catalyst selected from the group consisting of the oxides of nickel molybdenum, cobalt molybdenum, cobalt tungsten, and nickel tungsten on a carrier of alumina, silica, or a combination of alumina and silica. The catalyst has a total pore volume of about 0.500 to about 0.900 cc/g and the pore volume comprises micropores, intermediate pores and macropores, the surface of the intermediate pores being sufficiently large to convert the preasphaltenes to asphaltenes and lighter molecules. The conversion of the asphaltenes takes place on the surface of micropores. The macropores are for metal deposition and to prevent catalyst agglomeration. The micropores have diameters between about 50 and about 200 angstroms (.ANG.) and comprise from about 50 to about 80% of the pore volume, whereas the intermediate pores have diameters between about 200 and 2000 angstroms (.ANG.) and comprise from about 10 to about 25% of the pore volume, and the macropores have diameters between about 2000 and about 10,000 angstroms (.ANG.) and comprise from about 10 to about 25% of the pore volume. The catalysts are further improved where they contain promoters. Such promoters include the oxides of vanadium, tungsten, copper, iron and barium, tin chloride, tin fluoride and rare earth metals.

  17. Coal combustion products (CCPs

    Office of Energy Efficiency and Renewable Energy (EERE) (indexed site)

    Coal 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

  18. Pulverized coal fuel injector

    DOE Patents [OSTI]

    Rini, Michael J.; Towle, David P.

    1992-01-01

    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.

  19. Integrated coal liquefaction process

    DOE Patents [OSTI]

    Effron, Edward

    1978-01-01

    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.

  20. Coal and Coal-Biomass to Liquids FAQs

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    ... For further information, see: Coal and Coal-Biomass to Liquids. For additional information: Gasifipedia is a gasification resource that includes history, state-of-the art ...

  1. Coal combustion science. Quarterly progress report, April 1993--June 1993

    SciTech Connect (OSTI)

    Hardesty, D.R.

    1994-05-01

    This document is a quarterly status report of the Coal Combustion Science Project that is being conducted at the Combustion Research Facility, Sandia National Laboratories. The information reported is for Apr-Jun 1993. The objective of this work is to support the Office of Fossil Energy in executing research on coal combustion science. This project consists of basic research on coal combustion that supports both the PETC Direct Utilization Advanced Research and Technology Development Program, and the International Energy Agency Coal Combustion Science Project. The objective of the kinetics and mechanisms of pulverized coal char combustion task is to characterize the combustion behavior of selected US coals under conditions relevant to industrial pulverized coal-fired furnaces. Work is being done in four areas: kinetics of heterogeneous fuel particle populations; char combustion kinetics at high carbon conversion; the role of particle structure and the char formation process in combustion and; unification of the Sandia char combustion data base. This data base on the high temperature reactivities of chars from strategic US coals will permit identification of important fuel-specific trends and development of predictive capabilities for advanced coal combustion systems. The objective of the fate of inorganic material during coal combustion task is the establish a quantitative understanding of the mechanisms and rates of transformation, fragmentation, and deposition of inorganic material during coal combustion as a function of coal type, particle size and temperature, the initial forms and distribution of inorganic species in the unreacted coal, and the local gas temperature and composition. In addition, optical diagnostic capabilities are being developed for in situ, real-time detection of inorganic vapor species and surface species during ash deposition. Selected papers have been indexed separately for inclusion in the Energy Science and Technology Database.

  2. US coal market softens

    SciTech Connect (OSTI)

    Fiscor, S.

    2007-01-15

    The operators table some near term expansion plans, meanwhile long-term fundamentals look strong. This is one of the findings of the Coal Age Forecast 2007 survey of readers predictions on production and consumption of coal and attitudes in the coal industry. 50% of respondents expected product levels in 2007 to be higher than in 2006 and 50% described the attitude in the coal industry to be more optimistic in 2007 than in 2006. Most expenditure is anticipated on going on new equipment but levels of expenditure will be less than in 2006. 7 figs.

  3. Rail Coal Transportation Rates

    Annual Energy Outlook

    Recurring Reserves Stocks All reports Browse by Tag Alphabetical Frequency Tag Cloud Data For: 2001 Next Release Date: October 2003 U. S. Coal-Producing Districts...

  4. Annual Coal Distribution Tables

    U.S. Energy Information Administration (EIA) (indexed site)

    Domestic Distribution of U.S. Coal by Destination State, Consumer, Destination and Method of Transportation, 2001 (Thousand Short Tons) DESTINATION: Alabama State of Origin by...

  5. Coal Distribution Database, 2006

    U.S. Energy Information Administration (EIA) (indexed site)

    Report - Annual provides detailed information on domestic coal distribution by origin state, destination state, consumer category, and method of transportation. Also provided is...

  6. Coal liquefaction quenching process

    DOE Patents [OSTI]

    Thorogood, Robert M.; Yeh, Chung-Liang; Donath, Ernest E.

    1983-01-01

    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.

  7. Coal | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Assuming no additional constraints on CO2 emissions, coal remains the largest source of electricity generation in the AEO2011 Reference case because of continued reliance on...

  8. Coal Distribution Database, 2006

    U.S. Energy Information Administration (EIA) (indexed site)

    TF RailroadVesselShip Fuel It is also noted that Destination State code of "X Export" indicates movements to foreign destinations. 1 68 Domestic Coal Distribution...

  9. WCI Case for Coal

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    and storage, and the production of hydrogen from coal, ... countries, global energy consumption will continue to ... Other fuels will have to provide the great bulk of the ...

  10. By Coal Destination State

    Annual Energy Outlook

    California (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total...

  11. British coal privatization procedures

    SciTech Connect (OSTI)

    Not Available

    1994-06-01

    The form in which British Coal is to be privatized has finally been announced. Offers are to be invited for the operating underground and opencast mines which will be grouped into five regionally based companies. Additionally, offers will be invited for a number of collieries which are currently under care and maintenance. The five Regional Coal Companies to be formed are Central North, which will comprise the assets in the Yorkshire and Durham coalfields, including the five collieries in the Selby Complex; Central South, which will contain the assets located in the Nottinghamshire, Leicestershire, Derbyshire, and Warwickshire coalfields; North East, which has four opencast sites, Scotland, which has nine operating open-cast sites and a single underground mine, Longannet; and South Wales with its nine operating opencast sites. Tower colliery, the last underground mine in South Wales, was finally put on care and maintenance on April 20, 1994. Details of the five Regional Coal Companies are given. A new public sector body, the Coal Authority will be set up to which all British Coal's title to unworked coal and coal mines will be transferred. All the relevant property rights and liabilities of British Coal will be transferred into the Regional Coal Companies prior to their sun.

  12. Balancing coal pipes

    SciTech Connect (OSTI)

    Earley, D.; Kirkenir, B.

    2009-11-15

    Balancing coal flow to the burners to optimise combustion by using real-time measurement systems (such as microwave mass measurement) is discussed. 3 figs.

  13. Coal Market Module

    Gasoline and Diesel Fuel Update

    The use of coals with sub- optimal characteristics carries with it penalties in operating efficiency, maintenance cost, and system reliability. Such penalties range from the...

  14. Coal Gasification Report

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    ... (Btu) coal "that is combined with wind and other renewable sources, ... The Kentucky Pioneer EIS notes that "noise levels inside the turbine buildings would be very high, ...

  15. Process and apparatus for coal hydrogenation

    DOE Patents [OSTI]

    Ruether, John A.

    1988-01-01

    In a coal liquefaction process an aqueous slurry of coal is prepared containing a dissolved liquefaction catalyst. A small quantity of oil is added to the slurry and then coal-oil agglomerates are prepared by agitation of the slurry at atmospheric pressure. The resulting mixture of agglomerates, excess water, dissolved catalyst, and unagglomerated solids is pumped to reaction pressure and then passed through a drainage device where all but a small amount of surface water is removed from the agglomerates. Sufficient catalyst for the reaction is contained in surface water remaining on the agglomerates. The agglomerates fall into the liquefaction reactor countercurrently to a stream of hot gas which is utilized to dry and preheat the agglomerates as well as deposit catalyst on the agglomerates before they enter the reactor where they are converted to primarily liquid products under hydrogen pressure.

  16. Cooperative research program in coal liquefaction

    SciTech Connect (OSTI)

    Huffman, G.P.

    1991-01-01

    This Quarterly Report on coal liquefaction research includes discussion in the areas of (1) Iron Based Catalysts for Coal Liquefaction; (2) Exploratory Research on Coal Conversion; (3) Novel Coal Liquefaction Concepts; (4) Novel Catalysts for Coal Liquefaction. (VC)

  17. Extraction of weakly reductive and reductive coals with sub- and supercritical water

    SciTech Connect (OSTI)

    Bo Wu; Haoquan Hu; Shiping Huang; Yunming Fang; Xian Li; Meng Meng

    2008-11-15

    On a semi-continuous apparatus, a weakly reductive Shenfu-Dongsheng (SD) coal and a reductive Pingshuo (PS) coal were non-isothermally extracted with sub- and supercritical water to explore the differences between the two coals. The effect of the temperature on the extract formation rate, conversion, and product composition under different pressures was investigated. The extraction results of two coal samples indicate that the extract formation rate has a maximum in the studied temperature range between room temperature and 500{degree}C. The temperature corresponding to the maximum extract formation rate, changing with the pressure, is between 390 and 410{degree}C. The gas yield, extract yield, and conversion of two coals increase with the increasing pressure. In comparison to PS coal, SD coal has a low temperature corresponding to the maximum extract formation rate under the same pressure. Both coals have a main fraction of asphaltene, but SD coal has a higher fraction of oil than PS coal. The main gas components are CO{sub 2}, CH{sub 4}, and H{sub 2}. The gas from PS coal has a higher CH{sub 4} content and lower CO{sub 2} content than that from SD coal. The analysis results of the extraction residue indicated that SD coal has a low residue yield and the residue shows a large surface area and small average pore diameter compared to PS coal. 17 refs., 4 figs., 8 tabs.

  18. Clean coal technologies market potential

    SciTech Connect (OSTI)

    Drazga, B.

    2007-01-30

    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.

  19. NEMS Modeling of Coal Plants

    Annual Energy Outlook

    NEMS Modeling of Coal Plants Office of Electricity, Coal, Nuclear, and Renewable Analysis ... oil and gas steam plants, and 23 for nuclear plants regardless of age - Beyond 30 ...

  20. Coal resources of Kyrgyzstan

    SciTech Connect (OSTI)

    Landis, E.R.; Bostick, N.H.; Gluskoter, H.J.; Johnson, E.A.; Harrison, C.D.; Huber, D.W.

    1995-12-31

    The rugged, mountainous country of Kyrgyzstan contains about one-half of the known coal resources of central Asia (a geographic and economic region that also includes Uzbekistan, Tadjikistan and Turkmenistan). Coal of Jurassic age is present in eight regions in Kyrgyzstan in at least 64 different named localities. Significant coal occurrences of about the same age are present in the central Asian countries of Kazakhstan, China, and Russia. Separation of the coal-bearing rocks into individual deposits results more than earth movements before and during formation of the present-day mountains and basins of the country than from deposition in separate basins.Separation was further abetted by deep erosion and removal of the coal-bearing rocks from many areas, followed by covering of the remaining coal-bearing rocks by sands and gravels of Cenozoic age. The total resources of coal in Kyrgyzstan have been reported as about 30 billion tons. In some of the reported localities, the coal resources are known and adequately explored. In other parts of the republic, the coal resources are inadequately understood or largely unexplored. The resource and reserve inventory of Kyrgyzstan is at best incomplete; for some purposes, such as short-term local and long-range national planning, it may be inadequate. Less than 8% of the total estimated resources are categorized as recoverable reserves, and the amount that is economically recoverable is unknown. The coal is largely of subbituminous and high-volatile C bituminous rank, most has low and medium ash and sulfur contents, and coals of higher rank (some with coking qualities) are present in one region. It is recommended that appropriate analyses and tests be made during planning for utilization.

  1. Coal production, 1987

    SciTech Connect (OSTI)

    Not Available

    1988-12-05

    Coal Production 1987 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. The data presented in this report were collected and published by the Energy Information Administration (EIA), to fulfill its data collection and dissemination responsibilities as specified in the Federal Energy Administration Act of 1974 (P.L. 93-275) as amended. The 1987 coal production and related data presented in this report were obtained from Form EIA-7A, ''Coal Production Report,'' from companies owning mining operations that produced, processed, or prepared 10,000 or more short tons of coal in 1987. This survey originated at the Bureau of Mines, US Department of the Interior. In 1977, the responsibility for taking the survey was transferred to the EIA under the Department of Energy Organization Act (P.L. 95-91). The data cover 3667 of the 4770 US coal mining operations active in 1987. These mining operations accounted for over 99 percent of total US coal production and represented 77 percent of all US coal mining operations in 1987. This issue is the 12th annual report published by EIA and continues the series formerly included as a chapter in the Minerals Yearbook published by the Bureau of Mines. This report also includes data for the demonstrated reserve base of coal in the United States on January 1, 1988. This is the eighth annual summary on minable coal, pursuant to Section 801 of Public Law 95-620. 18 figs., 105 tabs.

  2. Coal-water mixture fuel burner

    DOE Patents [OSTI]

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

    1985-04-29

    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.

  3. Influence of combustion conditions and coal properties on physical properties of fly ash generated from pulverized coal combustion

    SciTech Connect (OSTI)

    Hiromi Shirai; Hirofumi Tsuji; Michitaka Ikeda; Toshinobu Kotsuji

    2009-07-15

    To develop combustion technology for upgrading the quality of fly ash, the influences of the coal properties, such as the size of pulverized coal particles and the two-stage combustion ratio during the combustion, on the fly ash properties were investigated using our test furnace. The particle size, density, specific surface area (obtained by the Blaine method), and shape of fly ash particles of seven types of coal were measured. It was confirmed that the size of pulverized coal particles affects the size of the ash particles. Regarding the coal properties, the fuel ratio affected the ash particle size distribution. The density and shape of the ash particles strongly depended on their ash size. Our results indicated that the shape of the ash particles and the concentration of unburned carbon affected the specific surface area. The influence of the two-stage combustion ratio was limited. 8 refs., 13 figs., 3 tabs.

  4. The role of catalyst precursor anions in coal gasification

    SciTech Connect (OSTI)

    Abotsi, G.M.K.

    1992-08-28

    The aims of the proposed project are to enrich our understanding of the roles of various aqueous soluble catalyst precursor anions on the surface electrical properties of coal and to ascertain the influence of the surface charge on the adsorption, dispersion, and activities of calcium and potassium. These goals will be achieved by impregnating a North Dakota lignite (PSOC 1482) and its demineralized derivative with calcium or potassium catalyst precursors containing acetate (CH{sub 3}COO{sup {minus}}), chloride (Cl{sup {minus}}), nitrate (NO{sub 3}{sup {minus}}), sulfate (SO{sub 4}{sup 2{minus}}), and carbonate (CO{sub 3}{sup 2{minus}}) anions. Catalyst loading will be conducted under well-controlled conditions of solution pH and ionic strength. In the last quarter, the surface charge properties of the coal was determined as a function of acetate (CH{sub 3}COO{sup {minus}}), chloride (Cl{sup {minus}}), nitrate (NO{sup 3}{sup {minus}}), carbonate (CO{sub 3}{sup 2{minus}}) or sulfate (SO{sub 4}{sup 2{minus}})concentration using the respective potassium salts of these anions. In general, low anion concentrations (10{sup {minus}3} or 10{sup {minus}2} mol/L) had little effect on the zeta potentials of the coals. However, the surface charge densities of the coal become less negative at 10-1 mol/L of the nitrate, carbonate or sulfate anions. These trends suggest that the surface charge density of the coal is controlled by the adsorption of potassium ions (K{sup +}) onto the coal particles. The net negative charge on the coal panicles creates a repulsive force between the anions and the coal surface and prevents the anions from exerting any significant effect on the coal's electrokinetic properties.

  5. Method for coal liquefaction

    DOE Patents [OSTI]

    Wiser, Wendell H.; Oblad, Alex G.; Shabtai, Joseph S.

    1994-01-01

    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.

  6. Mechanochemical hydrogenation of coal

    DOE Patents [OSTI]

    Yang, Ralph T.; Smol, Robert; Farber, Gerald; Naphtali, Leonard M.

    1981-01-01

    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.

  7. Coal liquefaction process

    DOE Patents [OSTI]

    Carr, Norman L.; Moon, William G.; Prudich, Michael E.

    1983-01-01

    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.

  8. Coal. [Great Plains Project

    SciTech Connect (OSTI)

    Not Available

    1981-03-01

    The status of various research projects related to coal is considered: gasification (approximately 30 processes) and in-situ gasification. Methanol production, retrofitting internal combustion engines to stratified charge engines, methanation (Conoco), direct reduction of iron ores, water resources, etc. Approximately 200 specific projects related to coal are considered with respect to present status. (LTN)

  9. Dry piston coal feeder

    DOE Patents [OSTI]

    Hathaway, Thomas J.; Bell, Jr., Harold S.

    1979-01-01

    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.

  10. State coal profiles, January 1994

    SciTech Connect (OSTI)

    Not Available

    1994-02-02

    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.

  11. Method for preventing plugging in the pyrolysis of agglomerative coals

    DOE Patents [OSTI]

    Green, Norman W.

    1979-01-23

    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.

  12. Coal in China

    SciTech Connect (OSTI)

    Minchener, A.J.

    2005-07-01

    The article gives an overview of the production and use of coal in China, for power generation and in other sectors. Coal use for power generation was 850 million tonnes in 2003 and 800 million tonnes in the non-power sector. The majority of power will continue to be produced from coal, with a trend towards new larger pulverised coal fired units and introduction of circulating fluidised bed combustors. Stricter regulations are forcing introduction of improved pollution control technologies. It seems likely that China will need international finance to supplement private and state investment to carry out a programme to develop and apply clean coal technologies. The author concludes that there is evidence of a market economy being established but there is a need to resolve inconsistencies with the planned aspects of the economy and that additional policies are needed in certain sectors to achieve sustainable development. 1 ref., 2 figs., 2 tabs.

  13. Underground Coal Thermal Treatment

    SciTech Connect (OSTI)

    Smith, P.; Deo, M.; Eddings, E.; Sarofim, A.; Gueishen, K.; Hradisky, M.; Kelly, K.; Mandalaparty, P.; Zhang, H.

    2012-01-11

    The long-term objective of this work is to develop a transformational energy production technology by insitu thermal treatment of a coal seam for the production of substitute natural gas (SNG) while leaving much of the coal's carbon in the ground. This process converts coal to a high-efficiency, low-GHG emitting gas fuel. It holds the potential of providing environmentally acceptable access to previously unusable coal resources. This topical report discusses the development of experimental capabilities, the collection of available data, and the development of simulation tools to obtain process thermo-chemical and geo-thermal parameters in preparation for the eventual demonstration in a coal seam. It also includes experimental and modeling studies of CO2 sequestration.

  14. Enzymatic desulfurization of coal

    SciTech Connect (OSTI)

    Boyer, Y.N.; Crooker, S.C.; Kitchell, J.P.; Nochur, S.V.

    1991-05-16

    The overall objective of this program was to investigate the feasibility of an enzymatic desulfurization process specifically intended for organic sulfur removal from coal. Toward that end, a series of specific objectives were defined: (1) establish the feasibility of (bio)oxidative pretreatment followed by biochemical sulfate cleavage for representative sulfur-containing model compounds and coals using commercially-available enzymes; (2) investigate the potential for the isolation and selective use of enzyme preparations from coal-utilizing microbial systems for desulfurization of sulfur-containing model compounds and coals; and (3) develop a conceptual design and economic analysis of a process for enzymatic removal of organic sulfur from coal. Within the scope of this program, it was proposed to carry out a portion of each of these efforts concurrently. (VC)

  15. Natural mercury isotope variation in coal deposits and organic soils

    SciTech Connect (OSTI)

    Abir, Biswas; Joel D. Blum; Bridget A. Bergquist; Gerald J. Keeler; Zhouqing Xie

    2008-11-15

    There is a need to distinguish among sources of Hg to the atmosphere in order to more fully understand global Hg pollution. In this study we investigate whether coal deposits within the United States, China, and Russia-Kazakhstan, which are three of the five greatest coal-producing regions, have diagnostic Hg isotopic fingerprints that can be used to discriminate among Hg sources. We also investigate the Hg isotopic composition of modern organic soil horizons developed in areas distant from point sources of Hg in North America. Mercury stored in coal deposits displays a wide range of both mass dependent fractionation and mass independent fractionation. {delta}{sup 202}Hg varies in coals by 3{per_thousand} and {Delta}{sup 201}Hg varies by 0.9{per_thousand}. Combining these two Hg isotope signals results in what may be a unique isotopic 'fingerprint' for many coal deposits. Mass independent fractionation of mercury has been demonstrated to occur during photochemical reactions of mercury. This suggests that Hg found in most coal deposits was subjected to photochemical reduction near the Earth's surface prior to deposition. The similarity in MDF and MIF of modern organic soils and coals from North America suggests that Hg deposition from coal may have imprinted an isotopic signature on soils. This research offers a new tool for characterizing mercury inputs from natural and anthropogenic sources to the atmosphere and provides new insights into the geochemistry of mercury in coal and soils. 35 refs., 2 figs., 1 tab.

  16. Apparatus and method for feeding coal into a coal gasifier

    DOE Patents [OSTI]

    Bissett, Larry A.; Friggens, Gary R.; McGee, James P.

    1979-01-01

    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.

  17. Coal in a changing climate

    SciTech Connect (OSTI)

    Lashof, D.A.; Delano, D.; Devine, J.

    2007-02-15

    The NRDC analysis examines the changing climate for coal production and use in the United States and China, the world's two largest producers and consumers of coal. The authors say that the current coal fuel cycle is among the most destructive activities on earth, placing an unacceptable burden on public health and the environment. There is no such thing as 'clean coal.' Our highest priorities must be to avoid increased reliance on coal and to accelerate the transition to an energy future based on efficient use of renewable resources. Energy efficiency and renewable energy resources are technically capable of meeting the demands for energy services in countries that rely on coal. However, more than 500 conventional coal-fired power plants are expected in China in the next eight years alone, and more than 100 are under development in the United States. Because it is very likely that significant coal use will continue during the transition to renewables, it is important that we also take the necessary steps to minimize the destructive effects of coal use. That requires the U.S. and China to take steps now to end destructive mining practices and to apply state of the art pollution controls, including CO{sub 2} control systems, to sources that use coal. Contents of the report are: Introduction; Background (Coal Production; Coal Use); The Toll from Coal (Environmental Effects of Coal Production; Environmental Effects of Coal Transportation); Environmental Effects of Coal Use (Air Pollutants; Other Pollutants; Environmental Effects of Coal Use in China); What Is the Future for Coal? (Reducing Fossil Fuel Dependence; Reducing the Impacts of Coal Production; Reducing Damage From Coal Use; Global Warming and Coal); and Conclusion. 2 tabs.

  18. New concept for coal wettability evalution and modulation. Final report 1 January 1992--30 September 1995

    SciTech Connect (OSTI)

    Hu, Weibai; Zou, Yuzhi; Wang, Qingping

    1995-12-31

    The study was concerned with a new concept for coal surface wettability evaluation and modulation. The objectives of the work were to study the fundamental surface chemistry for the evaluation of the surface wettability and floatability of coal nd minerals. A new separation strategy will contribute to the advanced selective separation of coal and pyrite. The theories of wettability and floatability of coal and mineral are discussed. A new concept of kinetic wettability, kinetic floatability, and kinetic collectability has been explored. In addition, their evaluation and correlation have been established. Some practical applications to improve the advanced selective flotation of coal and pyrite have been suggested.

  19. Coal market momentum converts skeptics

    SciTech Connect (OSTI)

    Fiscor, S.

    2006-01-15

    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.

  20. Desulfurization of coal with hydroperoxides of vegetable oils. [Quarterly] report, September 1--November 30, 1994

    SciTech Connect (OSTI)

    Smith, G.V.; Gaston, R.D.; Song, Ruozhi; Cheng, Jianjun

    1994-12-31

    This project proposes a new method for removing organic sulfur from Illinois coals using readily available farm products. It proposes to use air and vegetable oils to disrupt the coal matrix, oxidize sulfur forms, increase volatiles, and desulfurize coal. This will be accomplished by impregnating coals with polyunsaturated oils, converting the oils to their hydroperoxides, and heating. Since these oils are relatively inexpensive and easily applied, this project could lead to a cost effective method for removing organic sulfur from coals. Moreover, the oils are environmentally safe; they will produce no noxious products and will improve burning qualities of the solid products. Preliminary experiments showed that EBC 104 coal catalyzes the formation of hydroperoxides in safflower oil and that more sulfur is extracted from the treated than untreated coal. During this first quarter the requirement of an added photosensitizer has been eliminated, the catalytic effect of coal has been confirmed, and the existence of a complex set of reactions revealed. These reactions between the oxygen, oil, hydroperoxides, and coal are hydroperoxide formation, which is catalyzed by the coal surface and by heat, an unknown coal-hydroperoxide reaction, and oil polymerization. Additionally, diffusion phenomena must be playing a role because oil polymerization occurs, but the importance of diffusion is difficult to assess because less polymerization occurs when coal is present. The first task has been completed and we are now ready to determine the ability of linseed oil hydroperoxides to oxidize organic sulfur in EBC 108 coal.

  1. ,"Arkansas Associated-Dissolved Natural Gas Proved Reserves, Wet After Lease Separation"

    U.S. Energy Information Administration (EIA) (indexed site)

    Gas Proved Reserves, Wet After Lease Separation" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Associated-Dissolved Natural Gas Proved Reserves, Wet After Lease Separation",10,"Annual",2014,"6/30/1979" ,"Release Date:","11/19/2015" ,"Next Release

  2. ,"Arkansas Coalbed Methane Proved Reserves, Reserves Changes, and Production"

    U.S. Energy Information Administration (EIA) (indexed site)

    Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Coalbed Methane Proved Reserves, Reserves Changes, and Production",10,"Annual",2014,"6/30/2005" ,"Release Date:","11/19/2015" ,"Next Release Date:","12/31/2016"

  3. ,"Arkansas Crude Oil plus Lease Condensate Proved Reserves"

    U.S. Energy Information Administration (EIA) (indexed site)

    plus Lease Condensate Proved Reserves" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Crude Oil plus Lease Condensate Proved Reserves",10,"Annual",2014,"6/30/2009" ,"Release Date:","11/19/2015" ,"Next Release Date:","12/31/2016" ,"Excel File

  4. ,"Arkansas Dry Natural Gas Reserves Acquisitions (Billion Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Acquisitions (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Dry Natural Gas Reserves Acquisitions (Billion Cubic Feet)",1,"Annual",2014 ,"Release Date:","11/19/2015" ,"Next Release Date:","12/31/2016" ,"Excel File

  5. ,"Arkansas Dry Natural Gas Reserves Adjustments (Billion Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Adjustments (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Dry Natural Gas Reserves Adjustments (Billion Cubic Feet)",1,"Annual",2014 ,"Release Date:","11/19/2015" ,"Next Release Date:","12/31/2016" ,"Excel File

  6. ,"Arkansas Dry Natural Gas Reserves Estimated Production (Billion Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Estimated Production (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Dry Natural Gas Reserves Estimated Production (Billion Cubic Feet)",1,"Annual",2014 ,"Release Date:","11/19/2015" ,"Next Release Date:","12/31/2016" ,"Excel File

  7. ,"Arkansas Dry Natural Gas Reserves Extensions (Billion Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Extensions (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Dry Natural Gas Reserves Extensions (Billion Cubic Feet)",1,"Annual",2014 ,"Release Date:","11/19/2015" ,"Next Release Date:","12/31/2016" ,"Excel File

  8. ,"Arkansas Dry Natural Gas Reserves New Field Discoveries (Billion Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    New Field Discoveries (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Dry Natural Gas Reserves New Field Discoveries (Billion Cubic Feet)",1,"Annual",2014 ,"Release Date:","11/19/2015" ,"Next Release Date:","12/31/2016" ,"Excel File

  9. ,"Arkansas Dry Natural Gas Reserves Revision Decreases (Billion Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Decreases (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Dry Natural Gas Reserves Revision Decreases (Billion Cubic Feet)",1,"Annual",2014 ,"Release Date:","11/19/2015" ,"Next Release Date:","12/31/2016" ,"Excel File

  10. ,"Arkansas Dry Natural Gas Reserves Revision Increases (Billion Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Increases (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Dry Natural Gas Reserves Revision Increases (Billion Cubic Feet)",1,"Annual",2014 ,"Release Date:","11/19/2015" ,"Next Release Date:","12/31/2016" ,"Excel File

  11. ,"Arkansas Dry Natural Gas Reserves Sales (Billion Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Sales (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Dry Natural Gas Reserves Sales (Billion Cubic Feet)",1,"Annual",2014 ,"Release Date:","11/19/2015" ,"Next Release Date:","12/31/2016" ,"Excel File

  12. ,"Arkansas Lease Condensate Proved Reserves, Reserve Changes, and Production"

    U.S. Energy Information Administration (EIA) (indexed site)

    Lease Condensate Proved Reserves, Reserve Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Lease Condensate Proved Reserves, Reserve Changes, and Production",10,"Annual",2014,"6/30/1979" ,"Release Date:","11/19/2015" ,"Next Release

  13. ,"Arkansas Natural Gas Input Supplemental Fuels (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Input Supplemental Fuels (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Natural Gas Input Supplemental Fuels (MMcf)",1,"Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","na1400_sar_2a.xls"

  14. ,"Arkansas Natural Gas LNG Storage Net Withdrawals (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Net Withdrawals (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Natural Gas LNG Storage Net Withdrawals (MMcf)",1,"Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","na1350_sar_2a.xls"

  15. ,"Arkansas Natural Gas Lease Fuel Consumption (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Fuel Consumption (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Natural Gas Lease Fuel Consumption (MMcf)",1,"Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","na1840_sar_2a.xls"

  16. ,"Arkansas Natural Gas Plant Fuel Consumption (MMcf)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Fuel Consumption (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Natural Gas Plant Fuel Consumption (MMcf)",1,"Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","na1850_sar_2a.xls"

  17. ,"Arkansas Natural Gas Plant Liquids Production (Million Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Liquids Production (Million Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Natural Gas Plant Liquids Production (Million Cubic Feet)",1,"Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  18. ,"Arkansas Natural Gas Processed (Million Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Processed (Million Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Natural Gas Processed (Million Cubic Feet)",1,"Annual",2015 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File Name:","na1180_sar_2a.xls"

  19. ,"Arkansas Natural Gas Vehicle Fuel Price (Dollars per Thousand Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Price (Dollars per Thousand Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Natural Gas Vehicle Fuel Price (Dollars per Thousand Cubic Feet)",1,"Annual",2012 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  20. ,"Arkansas Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Wellhead Price (Dollars per Thousand Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)",1,"Annual",2010 ,"Release Date:","10/31/2016" ,"Next Release Date:","11/30/2016" ,"Excel File

  1. ,"Arkansas Nonassociated Natural Gas Proved Reserves, Wet After Lease Separation"

    U.S. Energy Information Administration (EIA) (indexed site)

    Gas Proved Reserves, Wet After Lease Separation" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Nonassociated Natural Gas Proved Reserves, Wet After Lease Separation",10,"Annual",2014,"6/30/1979" ,"Release Date:","11/19/2015" ,"Next Release

  2. ,"Arkansas Shale Gas Proved Reserves, Reserves Changes, and Production"

    U.S. Energy Information Administration (EIA) (indexed site)

    Gas Proved Reserves, Reserves Changes, and Production" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Shale Gas Proved Reserves, Reserves Changes, and Production",10,"Annual",2014,"6/30/2007" ,"Release Date:","11/19/2015" ,"Next Release Date:","12/31/2016"

  3. Arkansas Renewable Electric Power Industry Net Summer Capacity, by Energy Source

    U.S. Energy Information Administration (EIA) (indexed site)

    Arkansas" "Energy Source",2006,2007,2008,2009,2010 "Geothermal","-","-","-","-","-" "Hydro Conventional",1389,1321,1321,1337,1341 "Solar","-","-","-","-","-" "Wind","-","-","-","-","-" "Wood/Wood Waste",292,292,312,312,312 "MSW/Landfill Gas",5,5,5,5,9 "Other

  4. Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation, New

    U.S. Energy Information Administration (EIA) (indexed site)

    Field Discoveries (Billion Cubic Feet) Field Discoveries (Billion Cubic Feet) Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation, New Field Discoveries (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 0 1980's 0 0 0 0 0 0 0 0 0 0 1990's 1 0 0 0 0 0 0 0 0 0 2000's 0 0 0 0 1 0 0 0 0 0 2010's 0 0 0 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company

  5. Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation, New

    U.S. Energy Information Administration (EIA) (indexed site)

    Reservoir Discoveries in Old Fields (Billion Cubic Feet) Reservoir Discoveries in Old Fields (Billion Cubic Feet) Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation, New Reservoir Discoveries in Old Fields (Billion Cubic Feet) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1970's 0 1980's 0 0 0 0 0 0 0 0 1 0 1990's 0 0 0 0 0 0 0 0 0 0 2000's 0 0 0 0 0 0 0 0 0 0 2010's 0 0 0 0 0 - = No Data Reported; -- = Not Applicable; NA = Not Available; W =

  6. ,"Arkansas Coalbed Methane Proved Reserves (Billion Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Coalbed Methane Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release Date:","11/19/2015" ,"Next Release Date:","12/31/2016" ,"Excel File

  7. ,"Arkansas Crude Oil + Lease Condensate Proved Reserves (Million Barrels)"

    U.S. Energy Information Administration (EIA) (indexed site)

    + Lease Condensate Proved Reserves (Million Barrels)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Crude Oil + Lease Condensate Proved Reserves (Million Barrels)",1,"Annual",2014 ,"Release Date:","11/19/2015" ,"Next Release Date:","12/31/2016" ,"Excel File

  8. ,"Arkansas Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Liquids Lease Condensate, Proved Reserves (Million Barrels)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Natural Gas Liquids Lease Condensate, Proved Reserves (Million Barrels)",1,"Annual",2014 ,"Release Date:","11/19/2015" ,"Next Release Date:","12/31/2016"

  9. ,"Arkansas Natural Gas Plant Liquids, Expected Future Production (Million Barrels)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Liquids, Expected Future Production (Million Barrels)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Natural Gas Plant Liquids, Expected Future Production (Million Barrels)",1,"Annual",2014 ,"Release Date:","11/19/2015" ,"Next Release Date:","12/31/2016"

  10. ,"Arkansas Natural Gas, Wet After Lease Separation Proved Reserves (Billion Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Gas, Wet After Lease Separation Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Natural Gas, Wet After Lease Separation Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release Date:","11/19/2015" ,"Next Release

  11. ,"Arkansas Shale Proved Reserves (Billion Cubic Feet)"

    U.S. Energy Information Administration (EIA) (indexed site)

    Proved Reserves (Billion Cubic Feet)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Shale Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release Date:","11/19/2015" ,"Next Release Date:","12/31/2016" ,"Excel File

  12. Environmentally conscious coal combustion

    SciTech Connect (OSTI)

    Hickmott, D.D.; Brown, L.F.; Currier, R.P.

    1997-08-01

    This is the final report of a one-year, Laboratory-Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The objective of this project was to evaluate the environmental impacts of home-scale coal combustion on the Navajo Reservation and develop strategies to reduce adverse health effects associated with home-scale coal combustion. Principal accomplishments of this project were: (1) determination of the metal and gaseous emissions of a representative stove on the Navajo Reservation; (2) recognition of cyclic gaseous emissions in combustion in home-scale combustors; (3) `back of the envelope` calculation that home-scale coal combustion may impact Navajo health; and (4) identification that improved coal stoves require the ability to burn diverse feedstocks (coal, wood, biomass). Ultimately the results of Navajo home-scale coal combustion studies will be extended to the Developing World, particularly China, where a significant number (> 150 million) of households continue to heat their homes with low-grade coal.

  13. Coal leasing and taxation. Coal policy paper

    SciTech Connect (OSTI)

    Brody, S.E.; DeVries, A.H.

    1981-01-01

    The paper presents background information on current and proposed approaches to coal leasing and taxation, at both the State and federal levels. In addition, it discusses both the governmental objectives and probable economic effects of various combinations of leasing and taxation policies.

  14. Coal liquefaction process

    DOE Patents [OSTI]

    Wright, C.H.

    1986-02-11

    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.

  15. Aqueous coal slurry

    SciTech Connect (OSTI)

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

    1989-10-30

    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.

  16. Coal liquefaction process

    DOE Patents [OSTI]

    Wright, Charles H.

    1986-01-01

    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.

  17. Chapter 4 - Coal

    Gasoline and Diesel Fuel Update

    1 U.S. Energy Information Administration | International Energy Outlook 2016 Chapter 4 Coal Overview In the International Energy Outlook 2016 (IEO2016) Reference case, coal remains the second-largest energy source worldwide- behind petroleum and other liquids-until 2030. From 2030 through 2040, it is the third-largest energy source, behind both liquid fuels and natural gas. World coal consumption increases from 2012 to 2040 at an average rate of 0.6%/year, from 153 quadrillion Btu in 2012 to 169

  18. DOE - Fossil Energy: Coal Mining and Transportation

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Mining Fossil Energy Study Guides Coal Mining and Transportation Coal Miners - One type of mining, called "longwall mining", uses a rotating blade to shear coal away from the ...

  19. Coal Gasification and Transportation Fuels Magazine

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    Coal Gasification and Transportation Fuels Magazine Current Edition: Coal Gasification and Transportation Fuels Quarterly News, Vol. 2, Issue 3 (April 2016) Archived Editions: Coal ...

  20. Table 13. Coal Production, Projected vs. Actual

    U.S. Energy Information Administration (EIA) (indexed site)

    Coal Production, Projected vs. Actual" "Projected" " (million short tons)" ... (Washington, DC, September 25, 2014), Table 6.1, Coal Production and Waste Coal Supplied

  1. Puda Coal Inc | Open Energy Information

    Open Energy Information (Open El) [EERE & EIA]

    Puda Coal Inc Jump to: navigation, search Name: Puda Coal, Inc Place: Taiyuan, Shaanxi Province, China Product: Specializes in coal preparation by applying a water jig washing...

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

    DOE Patents [OSTI]

    Gregg, D.W.

    1980-08-29

    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.

  3. Method for gasification of deep, thin coal seams

    DOE Patents [OSTI]

    Gregg, David W.

    1982-01-01

    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.

  4. Coal markets squeeze producers

    SciTech Connect (OSTI)

    Ryan, M.

    2005-12-01

    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?

  5. COAL & POWER SYSTEMS

    U.S. Department of Energy (DOE) all webpages (Extended Search)

    ... The low- Btu combustion work supports ex- panding the fuel flexibility of gas turbines by developing the capabil- ity to operate on gases derived from gasification of coal, biomass...

  6. Delineating coal market regions

    SciTech Connect (OSTI)

    Solomon, B.D.; Pyrdol, J.J.

    1986-04-01

    This study addresses the delineation of US coal market regions and their evolution since the 1973 Arab oil embargo. Dichotomizing into compliance (low sulfur) and high sulfur coal deliveries, market regions are generated for 1973, 1977, and 1983. Focus is restricted to steam coal shipments to electric utilities, which currently account for over 80% of the total domestic market. A two-stage method is used. First, cluster analyses are performed on the origin-destination shipments data to generate baseline regions. This is followed by multiple regression analyses on CIF delivered price data for 1983. Sensitivity analysis on the configuration of the regions is also conducted, and some thoughts on the behavior of coal markets conclude the paper. 37 references, 6 figures, 2 tables.

  7. Proximate analysis of coal

    SciTech Connect (OSTI)

    Donahue, C.J.; Rais, E.A.

    2009-02-15

    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.

  8. Aqueous coal slurry

    DOE Patents [OSTI]

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

    1993-01-01

    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.

  9. Aqueous coal slurry

    DOE Patents [OSTI]

    Berggren, Mark H.; Smit, Francis J.; Swanson, Wilbur W.

    1993-04-06

    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.

  10. Quarterly coal report

    SciTech Connect (OSTI)

    Young, P.

    1996-05-01

    The Quarterly Coal Report (QCR) provides comprehensive information about U.S. coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. The data presented in the QCR are collected and published by the Energy Information Administration (EIA) to fulfill data collection and dissemination responsibilities as specified in the Federal Energy Administration Act of 1974 (Public Law 93-275), as amended. This report presents detailed quarterly data for October through December 1995 and aggregated quarterly historical data for 1987 through the third quarter of 1995. Appendix A displays, from 1987 on, detailed quarterly historical coal imports data, as specified in Section 202 of the Energy Policy and Conservation Amendments Act of 1985 (Public Law 99-58). Appendix B gives selected quarterly tables converted to metric tons.

  11. Clean Coal Research

    Office of Energy Efficiency and Renewable Energy (EERE)

    DOE's clean coal R&D is focused on developing and demonstrating advanced power generation and carbon capture, utilization and storage technologies for existing facilities and new fossil-fueled...

  12. Method for recovering light hydrocarbons from coal agglomerates

    DOE Patents [OSTI]

    Huettenhain, Horst (Benicia, CA); Benz, August D. (Hillsborough, CA); Getsoian, John (Ann Arbor, MI)

    1991-01-01

    A method and apparatus for removing light hydrocarbons, such as heptane, from coal agglomerates includes an enclosed chamber having a substantially horizontal perforate surface therein. The coal agglomerates are introduced into a water bath within the chamber. The agglomerates are advanced over the surface while steam is substantially continuously introduced through the surface into the water bath. Steam heats the water and causes volatilization of the light hydrocarbons, which may be collected from the overhead of the chamber. The resulting agglomerates may be collected at the opposite end from the surface and subjected to final draining processes prior to transportation or use.

  13. Reforesting Appalachia`s coal lands

    SciTech Connect (OSTI)

    Hopps, M.

    1994-11-01

    Currently, in those four states` primary coal counties, some 5,000 to 6,000 acres are surface-mined each year. Since 1977, when Congress passed the landmark Surface Mining Control and Reclamation Act (SMCRA), coal-mining companies have been required to refill the cuts they make and return the earth`s surface to approximately its original contours. Reclamation here means to aggressively-and literally-lay the groundwork for future cultivation of these lands. SMCRA calls for detailed reclamation plans before mining takes place, backed later by evaluations of how vegatation progresses up until the time of bond release-five years after mining ends. And though SMCRA has succeeded in improving the aesthetic appeal of post-mined sites, it does nothing to ensure that the most appropriate land use will be implemented for the long run.

  14. Coal liquefaction process

    DOE Patents [OSTI]

    Skinner, Ronald W.; Tao, John C.; Znaimer, Samuel

    1985-01-01

    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.

  15. Method for coal liquefaction

    DOE Patents [OSTI]

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

    1994-05-03

    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.

  16. Coal liquefaction process

    DOE Patents [OSTI]

    Karr, Jr., Clarence

    1977-04-19

    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.

  17. American coal imports 2015

    SciTech Connect (OSTI)

    Frank Kolojeski

    2007-09-15

    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.

  18. Coal Liquefaction desulfurization process

    DOE Patents [OSTI]

    Givens, Edwin N. (Bethlehem, PA)

    1983-01-01

    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.

  19. Phase relationship in coal ash corrosion products

    SciTech Connect (OSTI)

    Kalmanovitch, D.

    1996-12-31

    The corrosion of heat transfer surfaces in coal-fired utility boilers is a major concern to the efficient operation of these units. Despite the importance of the corrosion there has been limited research on the relationship between the ash components on the tube surface and the interactions and reactions between the various components and the steel surface. Mechanisms such as molten phase corrosion, sulfidation, and high temperature oxidation have been identified as leading to extensive wastage oftube metal. However, while the corrosion process can be identified using techniques such as metallography and x-ray diffraction there is limited insight into the role ofthe coal mineralogy and ash deposits on the surface in the corrosion process. This paper describes research into the formation of molten or sernimolten phases within ash deposits which are associated with corrosion of superheater and reheater fireside surfaces. For example, the phases potassium pyrosulfate (K{sub 2}S{sub 2}O{sub 7}) and potassium aluminum sulfate (K{sub 2}Al{sub 2}SO{sub 7}) have been determined by x-ray diffraction to be present in deposits where fireside corrosion has occurred. However, both these phases are not directly derived from coal minerals or the common matrix observed in ash deposits. The examination of the reactions and interactions within deposits which result in the formation of these and other phases associated with corrosion will be discussed in the paper.

  20. Additive development for ultra-clean coal slurry fuel: Final report

    SciTech Connect (OSTI)

    Berggren, M.H.; Swanson, W.W.

    1988-05-24

    AMAX performed research to develop improved quality, cost-effective dispersing additives for coal-water slurry fuels intended for high-intensity combustion systems. Dispersants were identified on the basis of coal surface characteristics and coal-dispersant interactions. Micronized samples of physically and chemically cleaned coal feedstocks from the Eastern and Midwestern regions of the United States were examined using bulk and surface analysis techniques. Utilization of coal surface and dispersant functionality was optimized through multicomponent application of additives, pH control, and control of surface oxidation. A low-cost, low-alkali, sulfur-free dextrin compound was found to be effective in enhancing dispersion when applied to the coal surfaces as a pretreatment or with conventional dispersants as a co-additive. The cleaning method and ash content had minimal direct impact on coal surface functionality. Parameters such as internal moisture, particle size, surface area, surface oxidation, and soluble ions were the primary considerations which influenced slurry loading and additive consumption. The dispersing additive packages functioned over the range of coal types and cleaning levels investigated. The preferred additives were compatible with each other, allowing for blending to optimize performance, cost, and alkali contamination. Each additive was found to be suitable for use in applications which utilize elevated-temperature fuel delivery systems. 17 refs., 8 figs., 27 tabs.