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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

  12. 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.

  13. 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.

  14. 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.

  15. 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.

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

  20. 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.

  1. 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.

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

  4. 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.

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

    Open Energy Info (EERE)

    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:...

  6. 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.

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

    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 ...

  8. Arkansas Total Electric Power Industry Net Summer Capacity, by...

    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 ...

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

  17. 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.

  18. 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)

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

  6. 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.

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

  9. 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.

  10. 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.

  11. 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.

  12. Property:EZFeed/JurisdictionDesc | Open Energy Information

    Open Energy Info (EERE)

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

  13. 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.

  14. 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.

  15. 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.

  16. 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.

  17. 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.

  18. Coal

    Broader source: Energy.gov [DOE]

    Coal is the largest domestically produced source of energy in America and is used to generate a significant amount of our nation’s electricity.

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

    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...

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

    Office of Science (SC) Website

    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...

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

    Office of Science (SC) Website

    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...

  3. 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.

  4. 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

  5. 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

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

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

    0. Average Number of Employees at Underground and Surface Mines by State and Union Status, 2014 Union Nonunion Coal-Producing State and Region 1 Underground Surface Underground Surface Alabama 2,653 57 199 743 Alaska - 120 - - Arizona - 387 - - Arkansas - - 82 - Colorado 163 206 1,194 244 Illinois 17 7 3,755 444 Indiana - - 2,172 1,604 Kansas - - - 4 Kentucky Total 514 20 7,562 3,265 Kentucky (East) 73 20 4,161 2,846 Kentucky (West) 441 - 3,401 419 Louisiana - - - 299 Maryland - - 167 183

  7. 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.

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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...

  10. 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.

  11. 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

  12. 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.

  13. 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.

  14. 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.

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

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

    . Coal Production and Number of Mines by State and Mine Type, 2014 and 2013 (thousand short tons) 2014 2013 Percent Change Coal-Producing State and Region 1 Number of Mines Production Number of Mines Production Number of Mines Production Alabama 36 16,363 39 18,620 -7.7 -12.1 Underground 7 12,516 8 13,515 -12.5 -7.4 Surface 29 3,847 31 5,105 -6.5 -24.7 Alaska 1 1,502 1 1,632 - -8.0 Surface 1 1,502 1 1,632 - -8.0 Arizona 1 8,051 1 7,603 - 5.9 Surface 1 8,051 1 7,603 - 5.9 Arkansas 2 94 2 59 -

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

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

    8. Average Sales Price of Coal by State and Mine Type, 2014 and 2013 (dollars per short ton) 2014 2013 Percent Change Coal-Producing State Underground Surface Total Underground Surface Total Underground 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 38.64 36.62 41.89 37.58 1.8 2.7 2.8 Illinois 47.29 45.29 47.11 48.08 45.65 47.82 -1.6 -0.8 -1.5 Indiana 49.52 47.47 48.41

  17. Arkansas SoyEnergy Group | Open Energy Information

    Open Energy Info (EERE)

    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...

  18. Alternative Fuels Data Center: CNG Powers Law Enforcement in Arkansas

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    CNG Powers Law Enforcement in Arkansas to someone by E-mail Share Alternative Fuels Data Center: CNG Powers Law Enforcement in Arkansas on Facebook Tweet about Alternative Fuels Data Center: CNG Powers Law Enforcement in Arkansas on Twitter Bookmark Alternative Fuels Data Center: CNG Powers Law Enforcement in Arkansas on Google Bookmark Alternative Fuels Data Center: CNG Powers Law Enforcement in Arkansas on Delicious Rank Alternative Fuels Data Center: CNG Powers Law Enforcement in Arkansas on

  19. Alumni: Sarah Nurre, University of Arkansas

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Sarah Nurre, University of Arkansas Alumni Link: Opportunities, News and Resources for Former Employees Latest Issue:September 2015 all issues All Issues » submit Alumni: Sarah Nurre, University of Arkansas Optimizing complex systems July 1, 2015 Sarah Nurre Sarah Nurre Contact Linda Anderman Email Sarah Nurre Sarah Nurre moving to the University of Arkansas Even though Sarah Nurre only spent two months at the Lab, in what is now Defense Systems and Analysis, she says it was a great experience,

  20. 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 May 19, 2016 CX-100612 Categorical Exclusion Determination One-Step Super Emitters for High Efficiency Solar Cells Award Number: DE-EE0007191 CX(s) Applied: A9, B3.6 Solar Energy Technologies Office Date: 05/2/2016 Location(s): AR Office(s): Golden Field Office August 28, 2015 CX-014269: Categorical Exclusion Determination

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

    Open Energy Info (EERE)

    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:...

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

  4. Arkansas Oil and Gas Commission | Open Energy Information

    Open Energy Info (EERE)

    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:...

  5. 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 - ...

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

    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...

  8. ,"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...

  9. ,"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...

  10. Arkansas/Wind Resources | Open Energy Information

    Open Energy Info (EERE)

    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...

  11. Clean Cities: Arkansas Clean Cities coalition

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    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...

  12. Arkansas Oklahoma Gas (AOG) Residential Rebate Program

    Broader source: 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...

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

    Open Energy Info (EERE)

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

  14. ARKANSAS RECOVERY ACT SNAPSHOT | Department of Energy

    Broader source: 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 ...

  15. ,"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 ...

  16. Recovery Act State Memos Arkansas

    Broader source: 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

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

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

    4. Coal Mining Productivity by State, Mine Type, and Union Status, 2014 (short tons produced per employee hour) Union Nonunion Coal-Producing State and Region 1 Underground Surface Underground Surface Alabama 1.92 2.31 0.85 2.00 Alaska - 5.43 - - Arizona - 8.06 - - Arkansas - - 0.49 - Colorado 5.72 5.38 6.26 7.44 Illinois - - 6.15 5.00 Indiana - - 3.39 5.36 Kansas - - - 13.38 Kentucky Total 2.29 - 2.74 3.15 Kentucky (East) 1.10 - 1.91 2.77 Kentucky (West) 2.48 - 3.63 5.75 Louisiana - - - 3.96

  18. 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 (â??IMCâ?) 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 DOEâ??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

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

    Office of Science (SC) Website

    ...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 ...

  20. 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.

  1. 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.

  2. Arkansas Natural Gas Plant Liquids Production Extracted in Arkansas

    Gasoline and Diesel Fuel Update (EIA)

    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 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to

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

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

    ,,"(202) 586-8800",,,"06292016 10:51:23 AM" "Back to Contents","Data 1: Arkansas Natural Gas Gross Withdrawals and Production" "Sourcekey","N9010AR2","N9011AR2","N9012AR2","NGME...

  4. Arkansas Shale Production (Billion Cubic Feet)

    Gasoline and Diesel Fuel Update (EIA)

    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...

  5. Arkansas Shale Proved Reserves (Billion Cubic Feet)

    Gasoline and Diesel Fuel Update (EIA)

    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...

  6. 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.

  7. 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.

  8. Arkansas Nuclear Profile - All Fuels

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

    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 ...

  9. ,"Arkansas Natural Gas Industrial Price (Dollars per Thousand...

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

    586-8800",,,"1292016 12:15:21 AM" "Back to Contents","Data 1: Arkansas Natural Gas Industrial Price (Dollars per Thousand Cubic Feet)" "Sourcekey","N3035AR3" "Date","Arkansas...

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

    Open Energy Info (EERE)

    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...

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

    Reports and Publications (EIA)

    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.

  12. Arkansas Renewable Electric Power Industry Net Summer Capacity...

    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","-","-","-","-"...

  13. Arkansas Renewable Electric Power Industry Net Generation, by...

    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","-","-","-","-"...

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

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Fuels and Vehicles Arkansas Transportation Data for Alternative Fuels and Vehicles to someone by E-mail Share Alternative Fuels Data Center: Arkansas Transportation Data for Alternative Fuels and Vehicles on Facebook Tweet about Alternative Fuels Data Center: Arkansas Transportation Data for Alternative Fuels and Vehicles on Twitter Bookmark Alternative Fuels Data Center: Arkansas Transportation Data for Alternative Fuels and Vehicles on Google Bookmark Alternative Fuels Data Center:

  15. 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.

  16. 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

  17. 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.

  18. 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

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

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

    4. Recoverable Coal Reserves and Average Recovery Percentage at Producing Mines by State, 2014 and 2013 (million short tons) 2014 2013 Coal-Producing State Recoverable Coal Reserves Average Recovery Percentage Recoverable Coal Reserves Average Recovery Percentage Percent Change Recoverable Coal Reserves Alabama 228 46.00 383 33.45 -40.4 Alaska 53 85.00 54 85.00 -3.0 Arizona 216 90.00 224 90.00 -3.6 Arkansas 25 60.00 25 60.00 -1.8 Colorado 333 76.35 371 76.01 -10.3 Illinois 2,463 59.16 2,552

  20. 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 January - March 2016 October - December 2015 January - March 2015 2016 2015 Percent Change Alabama 2,446 2,298 4,022 2,446 4,022 -39.2 Alaska 310 328 265 310 265 16.7 Arizona 1,335 1,376 1,755 1,335 1,755 -23.9 Arkansas 11 18 21 11 21 -48.0 Colorado 2,482 3,258 5,263 2,482 5,263 -52.8 Illinois 11,312 11,886 16,779 11,312 16,779 -32.6 Indiana 7,224 7,264 9,463 7,224 9,463 -23.7 Kansas 27 55 53 27 53

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

    Office of Science (SC) Website

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

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

    Broader source: 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...

  3. 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. ...

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

  7. 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 ...

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

  10. Arkansas Recovery Act State Memo | Department of Energy

    Office of Environmental Management (EM)

    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 ...

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

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

    Broader source: All U.S. Department of Energy (DOE) Office 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...

  14. ,"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...

  15. ,"Arkansas Natural Gas Vehicle Fuel Price (Dollars per Thousand...

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

    Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Natural Gas Vehicle Fuel Price (Dollars per Thousand Cubic Feet)",1,"Annual",2012 ,"Release...

  16. Arkansas Working Natural Gas Underground Storage Capacity (Million...

    Gasoline and Diesel Fuel Update (EIA)

    Working Natural Gas Underground Storage Capacity (Million Cubic Feet) Arkansas Working Natural Gas Underground Storage Capacity (Million Cubic Feet) Year Jan Feb Mar Apr May Jun...

  17. 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.

  18. 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 California State Offshore Federal Offshore California Colorado Federal Offshore Gulf of Mexico Federal Offshore Alabama Federal Offshore Louisiana Federal Offshore Texas Kansas Louisiana Louisiana Onshore Louisiana Offshore Louisiana State Offshore Montana New Mexico North Dakota Ohio Oklahoma Pennsylvania Texas Texas

  19. Arkansas Natural Gas Gross Withdrawals and Production

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

    Alaska Arkansas California Colorado Federal Offshore Gulf of Mexico Kansas Louisiana Montana New Mexico North Dakota Ohio Oklahoma Pennsylvania Texas Utah West Virginia Wyoming Other States Total Alabama Arizona Florida Illinois Indiana Kentucky Maryland Michigan Mississippi Missouri Nebraska Nevada New York Oregon South Dakota Tennessee Virginia Period-Unit: Monthly-Million Cubic Feet Monthly-Million Cubic Feet per Day Annual-Million Cubic Feet Download Series History Download Series History

  20. 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}

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

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

    3. Productive Capacity and Capacity Utilization of Underground Coal Mines by State and Mining Method, 2014 (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 510 85.35 - - 13,405 90.12 13,915 89.95 Arkansas 240 36.25 - - - - 240 36.25 Colorado 1,000

  2. 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.

  3. 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).

  4. 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.

  5. 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.

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

    Gasoline and Diesel Fuel Update (EIA)

    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...

  7. ,"Arkansas Natural Gas Price Sold to Electric Power Consumers...

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

    ,,"(202) 586-8800",,,"1292016 12:16:40 AM" "Back to Contents","Data 1: Arkansas Natural Gas Price Sold to Electric Power Consumers (Dollars per Thousand Cubic Feet)"...

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

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

    Open Energy Info (EERE)

    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...

  11. 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 ...

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

    Open Energy Info (EERE)

    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...

  13. Georgia and Arkansas Residential Energy Code Field Studies

    Broader source: Energy.gov [DOE]

    Lead Performer: Southeast Energy Efficiency Alliance – Atlanta, GAPartners:   -  Advanced Energy – Raleigh, NC  -  Arkansas Economic Development Commission, Energy Office – Little Rock, AR  - ...

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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...

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

    Broader source: All U.S. Department of Energy (DOE) Office 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

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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:...

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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...

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

    Open Energy Info (EERE)

    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...

  7. 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 ...

  8. 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 ...

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

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    The coalition, backed by the Arkansas Energy Office, helped educate the board about ... projects will come to fruition." Photo of blue and green CNG buses driving around a road.

  10. Arkansas - Seds - U.S. Energy Information Administration (EIA)

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

    Arkansas - Seds - U.S. Energy Information Administration (EIA) The page does not exist for . To view this page, please select a state: United States Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware District of Columbia Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma

  11. 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

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

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

    1. Average Sales Price of Coal by State and Coal Rank, 2014 (dollars per short ton) Coal-Producing State Bituminous Subbituminous Lignite Anthracite Total Alabama 87.17 - - - 87.17 Alaska - w - - w Arizona w - - - w Arkansas w - - - w Colorado w w - - 38.64 Illinois 47.11 - - - 47.11 Indiana 48.41 - - - 48.41 Kansas w - - - w Kentucky Total 57.62 - - - 57.62 Kentucky (East) 66.97 - - - 66.97 Kentucky (West) 49.58 - - - 49.58 Louisiana - - w - w Maryland 50.62 - - - 50.62 Mississippi - - w - w

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

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

    6. Coal Production and Number of Mines by State and Coal Rank, 2014 (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 36 16,363 - - - - - - 36 16,363 Alaska - - 1 1,502 - - - - 1 1,502 Arizona 1 8,051 - - - - - - 1 8,051 Arkansas 2 94 - - - - - - 2 94 Colorado 8 19,582 2 4,425 - - - - 10 24,007

  14. 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.

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

    Broader source: 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...

  16. 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.

  17. Arkansas Number of Natural Gas Consumers

    Gasoline and Diesel Fuel Update (EIA)

    Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2010 1 1 1 1 1 1 1 1 1 1 1 1 2011 2 2 2 2 2 2 2 2 2 2 2 2 2012 2 2 2 2 2 2 2 2 2 2 2 2 2013 2 2 2 2 2 2 2 2 2 2 2 2 2014 3 2 3 3 3 3 3 3 3 3 3 3 2015 2 2 2 2 2 2 3 3 3 3 3 3 2016 3 3 3 3 3 3

    Vehicle Fuel Price (Dollars per Thousand Cubic Feet) Arkansas Natural Gas Vehicle Fuel 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 1990's 4.29 3.94 3.86 5.21 5.35 5.03 2000's 6.12

  18. Arkansas Natural Gas Processed (Million Cubic Feet)

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

    Processed (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

  19. Arkansas: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    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...

  20. Arkansas Renewable Electric Power Industry Statistics

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    Form EIA-923, "Power Plant Operations Report." ... Fossil 10,965 11,807 11,756 11,753 12,451 Coal 3,846 3,846 ... Natural Gas includes single-fired and dual-fired plants ...

  1. 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.

  2. 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

  3. 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

  4. 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 ...

  5. 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.

  6. 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.

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

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

    Arkansas Natural Gas Underground Storage Volume (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 27,878 27,848 27,810 27,846 27,946 28,419 28,946 ...

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

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

    9. Average Sales Price of Coal by State and Underground Mining Method, 2014 (dollars per short ton) Coal-Producing State Continuous 1 Conventional and Other 2 Longwall 3 Total Alabama w - w 89.68 Arkansas w - - w Colorado w - w 37.28 Illinois 44.23 w 49.05 w Indiana 49.52 - - 49.52 Kentucky Total w w - 57.12 Kentucky (East) w w - 70.93 Kentucky (West) w w - 50.29 Maryland w - - w Montana - - w w New Mexico - - w w Ohio w - w 50.61 Oklahoma w - - w Pennsylvania Total 69.41 w 59.51 w Pennsylvania

  9. 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.

  10. 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.

  11. 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.

  12. 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

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

    Energy Savers [EERE]

    Arkansas Natural Gas Company Hosts Tour With U.S. Deputy Secretary of Energy Poneman ... to Highlight Obama Administration's Investments in American Energy and Innovation at ...

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

    Open Energy Info (EERE)

    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...

  15. 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.

  16. 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).

  17. 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

  18. EIA - Coal Distribution

    Gasoline and Diesel Fuel Update (EIA)

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

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

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

    9. Major U.S. Coal Mines, 2014 Rank Mine Name / Operating Company Mine Type State Production (short tons) 1 North Antelope Rochelle Mine / Peabody Powder River Mining LLC Surface Wyoming 117,965,515 2 Black Thunder / Thunder Basin Coal Company LLC Surface Wyoming 101,016,860 3 Cordero Mine / Cordero Mining LLC Surface Wyoming 34,809,101 4 Antelope Coal Mine / Antelope Coal LLC Surface Wyoming 33,646,960 5 Eagle Butte Mine / Alpha Coal West, Inc. Surface Wyoming 20,690,237 6 Spring Creek Coal

  20. 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.

  1. NETL: Coal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Coal In response to concerns of climate change, the United States is contemplating a complete and rapid transformation of the way it both produces and consumes energy to significantly reduce its carbon emissions. The integrated Coal Program focuses on retaining the benefits of continuing to use coal to produce electric power. This strategy can help us depend less on foreign sources of energy, respond to the world's growing climate concerns, and compete economically. It also will ensure that our

  2. 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.

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

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

    Proved Reserves (Billion Cubic Feet) Associated-Dissolved Natural Gas, Wet After Lease Separation, 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

  4. 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

  5. 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 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 8/31/2016 Next Release Date: 9/30/2016

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

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

    Barrels) Liquids Lease Condensate, Proved Reserves (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

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

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

    Barrels) Liquids, 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

  8. 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

  9. 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

  10. 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

  11. 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.

  12. 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 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 8/31/2016 Next Release Date: 9/30/2016 Referring Pages:

  13. 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 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 8/31/2016 Next Release Date: 9/30/2016 Referring Pages:

  14. 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 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 8/31/2016 Next

  15. 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 » 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.« less

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

    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, 2014 (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

  17. 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).

  18. 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.

  19. 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...

  20. 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.

  1. Coal Market Module

    Gasoline and Diesel Fuel Update (EIA)

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

  2. 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.

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

    Office of Science (SC) Website

    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

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

    Office of Science (SC) Website

    (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

  5. Microsoft Word - DOE-ID-14-074 Arkansas EC B3-6.doc

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    4 SECTION A. Project Title: - Computational & Experimental Studies of Microstructure-Scale Porosity in Metallic - University of Arkansas SECTION B. Project Description The University of Arkansas, in collaboration with Texas A & M University (TAMU) and Georgia Tech, proposes to investigate the stability of bimodal pore size distributions, and the potential to microstructurally design metallic fuels along such lines, by closely- coordinated computational modeling and experiments. SECTION

  6. 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

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

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

    Reserves (Billion Cubic Feet) Nonassociated Natural Gas, Wet After Lease Separation, 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

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

    Gasoline and Diesel Fuel Update (EIA)

    Barrels) Reserves Based Production (Million Barrels) Arkansas Natural Gas Plant Liquids, 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 1 1980's 1 1 1 1 1 1 1 1 1 1 1990's 1 0 0 0 0 0 0 0 0 0 2000's 0 1 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

  9. 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:

  10. 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

  11. Arkansas Natural Gas Input Supplemental Fuels (Million Cubic Feet)

    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 Year-8 Year-9 1960's 0 0 0 1970's 0 0 0 0 0 0 0 0 0 0 1980's 7 8 6 0 0 0 0 0 0 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 = Withheld to avoid disclosure of individual company data. Release Date: 08/31/2016 Next Release Date:

  12. 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 6,452 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of

  13. 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 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to

  14. 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 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual

  15. 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 - = No Data Reported; -- = Not Applicable; NA =

  16. 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 11,580 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 8/31/2016 Next Release Date: 9/30/2016 Referring

  17. 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 - = No Data Reported; -- = Not Applicable; NA =

  18. 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 271,515 284,076 296,132 282,120 268,453 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 8/31/2016 Next

  19. 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

  20. 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.

  1. 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.

  2. 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.

  3. Coal and Coal-Biomass to Liquids

    Broader source: All U.S. Department of Energy (DOE) Office 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 ...

  4. 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.

  5. By Coal Origin State

    Gasoline and Diesel Fuel Update (EIA)

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

  6. 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.

  7. 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.

  8. 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.

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

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

    2. Underground Coal Mining Productivity by State and Mining Method, 2014 (short tons produced per employee hour) Coal-Producing State, Region 1 and Mine Type Continuous 2 Conventional and Other 3 Longwall 4 Total Alabama 0.92 - 1.92 1.84 Arkansas 0.49 - - 0.49 Colorado 3.44 - 6.49 6.19 Illinois 4.43 6.73 7.60 6.16 Indiana 3.38 - - 3.38 Kentucky Total 2.69 2.93 - 2.70 Kentucky (East) 1.91 1.31 - 1.89 Kentucky (West) 3.50 3.49 - 3.50 Maryland 1.83 - - 1.83 Montana - - 10.66 10.66 New Mexico - -

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

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

    . Underground Coal Production by State and Mining Method, 2014 (thousand short tons) Coal-Producing State and Region 1 Continuous 2 Conventional and Other 3 Longwall 4 Total Alabama 435 - 12,081 12,516 Arkansas 87 - - 87 Colorado 971 10 17,142 18,123 Illinois 16,944 1,634 34,136 52,713 Indiana 18,105 - - 18,105 Kentucky Total 49,882 2,926 - 52,807 Kentucky (East) 17,989 425 - 18,414 Kentucky (West) 31,893 2,501 - 34,393 Maryland 718 - - 718 Montana - - 7,902 7,902 New Mexico - - 8,800 8,800 Ohio

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

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

    0. Average Sales Price of Coal by State, County, and Number of Mines, 2014 Coal-Producing State and County Number of Mines Sales (thousand short tons) Average Sales Price (dollars per short ton) Alabama 32 17,359 87.17 Bibb 1 w w Franklin 2 w w Jefferson 9 5,764 103.31 Shelby 2 w w Tuscaloosa 6 8,693 79.37 Walker 10 1,886 79.19 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 24,536 38.64 Delta 1 w w Gunnison 1 w w La Plata 1 w w Moffat

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

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

    3. Average Sales Price of U.S. Coal by State and Disposition, 2014 (dollars per short ton) Coal-Producing State Open Market 1 Captive 2 Total 3 Alabama 84.48 - 87.17 Alaska w - w Arizona w - w Arkansas w w w Colorado 35.68 44.28 38.64 Illinois w w 47.11 Indiana 49.61 46.73 48.41 Kansas w - w Kentucky Total 57.07 65.50 57.62 Kentucky (East) 66.69 65.50 66.97 Kentucky (West) 49.58 - 49.58 Louisiana w - w Maryland 48.59 - 50.62 Mississippi w - w Missouri w - w Montana w w 17.22 New Mexico w w w

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

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

    8. Coal Disposition by State, 2014 (thousand short tons) Coal-Producing State Open Market Sales 1 Captive Sales / Transactions 2 Exports 3 Total Alabama 5,310 - 12,049 17,359 Alaska 954 - 554 1,508 Arizona 8,182 - - 8,182 Arkansas 1 104 9 114 Colorado 10,602 11,844 2,089 24,536 Illinois 39,533 6,139 10,170 55,842 Indiana 22,946 15,470 85 38,501 Kansas 50 - - 50 Kentucky Total 71,027 206 3,293 74,525 Kentucky (East) 31,077 206 3,201 34,483 Kentucky (West) 39,950 - 92 40,043 Louisiana 2,605 - -

  14. 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.

  15. 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.

  16. EIA -Quarterly Coal Distribution

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

    - Coal Distribution Quarterly Coal Distribution Archives Release Date: August 17, 2016 Next Release Date: December 22, 2016 The Quarterly Coal Distribution Report (QCDR) provides detailed quarterly data on U.S. domestic coal distribution by coal origin, coal destination, mode of transportation and consuming sector. All data are preliminary and superseded by the final Coal Distribution - Annual Report. Year/Quarters By origin State By destination State Report Data File Report Data File 2009

  17. Coal Transportation Rate Sensitivity Analysis

    Reports and Publications (EIA)

    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.

  18. 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.

  19. 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.

  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) 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;

  1. 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

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

    Gasoline and Diesel Fuel Update (EIA)

    Foot) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 2013 1,015 1,016 1,016 1,016 1,017 1,018 1,016 1,016 1,014 1,012 1,012 1,015 2014 1,017 1,015 1,015 1,018 1,017 1,019 1,021 1,021 1,019 1,018 1,011 1,017 2015 1,021 1,023 1,023 1,025 1,022 1,020 1,023 1,022 1,019 1,029 1,014 1,015 2016 1,019 1,015 1,017 1,019 1,018 1,020

    % 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

  3. 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

  4. 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.

  5. 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.

  6. 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.

  7. 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.

  8. 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.

  9. 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.

  10. 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

  11. 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

  12. 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.

  13. 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.

  14. Arkansas Heat Content of Natural Gas Deliveries to Consumers (BTU per Cubic

    Gasoline and Diesel Fuel Update (EIA)

    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 Year-8 Year-9 2000's 30 34 31 31 22 2010's 28 21 10 13 15 - = 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 Proved Reserves as of Dec. 31 Arkansas Coalbed Methane Proved

  15. 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.

  16. Annual Coal Distribution Report

    Broader source: All U.S. Department of Energy (DOE) Office 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 ...

  17. 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...

  18. 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...

  19. 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...

  20. 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...

  1. 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...

  2. 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...

  3. 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...

  4. 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...

  5. 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...

  6. 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...

  7. 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...

  8. 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...

  9. 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...

  10. 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...

  11. 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...

  12. 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...

  13. 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...

  14. NETL: Coal Gasification Systems

    Broader source: All U.S. Department of Energy (DOE) Office 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 ...

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

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

    2014 2013 Percent Change Coal-Producing State and Region 1 Underground Surface Total Underground Surface Total Underground Surface Total Alabama 2,852 842 3,694 3,077 1,135 4,212 ...

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

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

    Union Nonunion Total Coal-Producing State and Region 1 Underground Surface Underground Surface Underground Surface Alabama 12,081 327 435 3,486 12,516 3,813 Alaska - 1,502 - - - ...

  17. 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.

  18. 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.

  19. 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

  20. 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.

  1. 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.

  2. Annual Coal Distribution

    Reports and Publications (EIA)

    2016-01-01

    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.

  3. 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.

  4. Annual Coal Distribution

    Reports and Publications (EIA)

    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.

  5. 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.

  6. 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.

  7. 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.

  8. 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.

  9. 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.

  10. 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.

  11. 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.

  12. 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.

  13. 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.

  14. 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.

  15. 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.

  16. 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.

  17. 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

  18. 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.

  19. 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.

  20. 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...

  1. 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...

  2. "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 ...

  3. 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.

  4. 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

  5. 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.

  6. 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.

  7. 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.

  8. Coal Combustion Products

    Office of Energy Efficiency and Renewable Energy (EERE)

    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.

  9. Coal Study Guide for Elementary School

    Office of Energy Efficiency and Renewable Energy (EERE)

    Focuses on the basics of coal, history of coal use, conversion of coal into electricity, and climate change concerns.

  10. 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.

  11. 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.

  12. 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)

  13. 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.

  14. 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.

  15. 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.

  16. 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.

  17. 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.

  18. 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.

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

    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, 2014 (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 6,295 63.56 10,599 91.28 16,894 80.95 Over 500 to 1,000 504 47.03 692 88.31 1,197 70.91 Over 200 to 500

  20. 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.

  1. 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.

  2. 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

  3. 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.

  4. 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.

  5. Weekly Coal Production Estimation Methodology

    Gasoline and Diesel Fuel Update (EIA)

    Weekly Coal Production Estimation Methodology Step 1 (Estimate total amount of weekly U.S. coal production) U.S. coal production for the current week is estimated using a ratio ...

  6. ,"Arkansas Coalbed Methane Proved Reserves (Billion Cubic Feet)"

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

    Coalbed Methane 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 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 Underground Storage Withdrawals (MMcf)"

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

    Gas Underground Storage 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 Underground Storage Withdrawals (MMcf)",1,"Monthly","5/2016" ,"Release Date:","8/31/2016" ,"Next Release Date:","9/30/2016" ,"Excel File

  9. ,"Arkansas Natural Gas Industrial 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 Industrial Price (Dollars per Thousand Cubic Feet)",1,"Monthly","6/2016" ,"Release Date:","8/31/2016" ,"Next Release Date:","9/30/2016" ,"Excel File

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

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

    LNG Storage 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",2014 ,"Release Date:","8/31/2016" ,"Next Release Date:","9/30/2016" ,"Excel File

  11. ,"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"

  12. ,"Arkansas Natural Gas Plant Liquids, Expected Future Production (Million Barrels)"

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

    Plant 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"

  13. ,"Arkansas Natural Gas Underground Storage Capacity (MMcf)"

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

    Capacity (MMcf)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","Arkansas Natural Gas Underground Storage Capacity (MMcf)",1,"Monthly","6/2016" ,"Release Date:","8/31/2016" ,"Next Release Date:","9/30/2016" ,"Excel File Name:","n5290ar2m.xls"

  14. ,"Arkansas Natural Gas Vehicle Fuel Consumption (MMcf)"

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

    Vehicle 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 Vehicle Fuel Consumption (MMcf)",1,"Monthly","6/2016" ,"Release Date:","8/31/2016" ,"Next Release Date:","9/30/2016" ,"Excel File

  15. ,"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:","8/31/2016" ,"Next Release Date:","9/30/2016" ,"Excel File

  16. ,"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

  17. ,"Arkansas Shale Proved Reserves (Billion Cubic Feet)"

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

    Shale 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

  18. Rail Coal Transportation Rates

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    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...

  19. Coal | Open Energy Information

    Open Energy Info (EERE)

    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...

  20. 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...

  1. Coal Market Module

    Gasoline and Diesel Fuel Update (EIA)

    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...

  2. By Coal Destination State

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    California (thousand short tons) Coal Origin State Transportation Mode Electric Power Sector Coke Plants Industrial Plants (excluding Coke) Commercial & Institutional Total...

  3. 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.

  4. 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.

  5. 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...

  6. 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...

  7. 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.

  8. COAL & POWER SYSTEMS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... stitutions * InternationalCoal Technology Export C&PS ... * Systems Integration * Plant Designs Central Power ... Boiler System - Indirect Fired Cycles - Pressurized ...

  9. WCI Case for Coal

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    ... technology: It has been calculated that if the thermal efficiency of existing coal-fired power plant worldwide were brought up to current German levels of efficiency, the ...

  10. 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.

  11. 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)

  12. 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.

  13. 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.

  14. 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.

  15. 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.

  16. 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.

  17. 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.

  18. 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.

  19. 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)

  20. 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.

  1. 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.

  2. 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.

  3. Sustainable Coal Use

    Office of Energy Efficiency and Renewable Energy (EERE)

    Coal is a vital energy resource, not only for the United States, but also for many developed and developing economies around the world. Finding ways to use coal cleanly and more efficiently at lower costs is a major R&D challenge, and an ongoing focus of activities by the DOE's Office of Fossil Energy.

  4. 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.

  5. 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.

  6. 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.

  7. 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)

  8. 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.

  9. 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.

  10. 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.

  11. 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.

  12. 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.

  13. 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.

  14. 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.

  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, 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.

  17. Chapter 4 - Coal

    Gasoline and Diesel Fuel Update (EIA)

    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. 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.

  19. DOE - Fossil Energy: Coal Mining and Transportation

    Broader source: All U.S. Department of Energy (DOE) Office 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 ...

  20. Puda Coal Inc | Open Energy Information

    Open Energy Info (EERE)

    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...

  1. Coal Gasification and Transportation Fuels Magazine

    Broader source: All U.S. Department of Energy (DOE) Office 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 ...

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  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. 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?

  9. 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.

  10. Coal Research FAQs

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    According to IEA, removing CCS from the list of options ... and storage (CCS) with coal-fired power generation at commercial ... new fossil-fueled power plants by increasing overall ...

  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. 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.

  13. 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.

  14. 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.

  15. 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.

  16. 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.

  17. Arkansas Natural Gas Delivered to Commercial Consumers for the Account of

    Gasoline and Diesel Fuel Update (EIA)

    Others (Million Cubic Feet) Delivered to Commercial Consumers for the Account of Others (Million Cubic Feet) Arkansas Natural Gas Delivered to Commercial Consumers for the Account of Others (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 1,723 1,870 1990's 1,939 2,198 2,343 2,393 1,351 1,104 1,550 1,699 2,576 2,983 2000's 3,354 4,164 6,336 5,751 5,874 8,173 8,843 9,534 13,112 14,776 2010's 17,862 19,402 24,772 26,797 27,604 - = No

  18. Arkansas Natural Gas Lease and Plant Fuel Consumption (Million Cubic Feet)

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

    and Plant Fuel Consumption (Million Cubic Feet) Arkansas Natural Gas Lease and 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 1960's 10,267 4,027 6,268 1970's 9,184 6,433 4,740 3,000 4,246 4,200 4,049 4,032 3,760 7,661 1980's 1,949 2,549 5,096 5,384 5,922 12,439 9,062 11,990 12,115 11,586 1990's 7,101 1,406 5,838 6,405 4,750 5,551 5,575 6,857 8,385 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld

  19. Arkansas Natural Gas Number of Gas and Gas Condensate Wells (Number of

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

    Elements) Gas and Gas Condensate Wells (Number of Elements) Arkansas Natural Gas Number of Gas and Gas Condensate 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 1980's 2,830 1990's 2,952 2,780 3,500 3,500 3,500 3,988 4,020 3,700 3,900 3,650 2000's 4,000 4,825 6,755 7,606 3,460 3,462 3,814 4,773 5,592 6,314 2010's 7,397 8,388 8,538 9,843 10,150 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid

  20. Arkansas Natural Gas Vehicle Fuel Price (Dollars per Thousand Cubic Feet)

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

    Vehicle Fuel Price (Dollars per Thousand Cubic Feet) Arkansas Natural Gas Vehicle Fuel 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 1990's 4.29 3.94 3.86 5.21 5.35 5.03 2000's 6.12 7.75 4.43 5.28 6.86 10.16 8.51 8.39 -- -- 2010's -- -- 9.04 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 8/31/2016 Next Release Date: 9/30/2016 Referring

  1. Arkansas Natural Gas in Underground Storage - Change in Working Gas from

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

    Same Month Previous Year (Million Cubic Feet) Million Cubic Feet) Arkansas Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 -925 -513 -486 -557 -855 -813 -453 -125 98 112 82 297 1991 -381 -716 -999 -1,230 -1,199 -1,333 -1,373 -1,840 -2,119 -2,147 -2,697 -3,134 1992 -1,855 -2,008 -2,040 -1,913 -2,046 -1,875 -1,510 -861 -426 -502 -100 73 1993 100 -170 -256 -297 -803 -1,041

  2. 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.

  3. Coal repository. Final report

    SciTech Connect (OSTI)

    Not Available

    1983-11-01

    The Coal Repository Project was initiated in 1980 by the Department of Energy/Pittsburgh Energy Technology Center to provide a centralized system for the collection of well characterized coal samples, and distribution to organizations involved in the chemical beneficiation of coal and related research. TRW Energy Development Group, together with its subcontractor Commercial Testing and Engineering Company, established the Coal Repository at the TRW Capistrano Chemical Facility, which is the location of the DOE-owned Multi-Use Fuel and Energy Processes Test Plant (MEP). Twenty tons each of three coals (Illinois No. 6, Kentucky No. 11 (West), and Pittsburgh No. 8 (from an Ohio mine)) were collected, characterized, and stored under a nitrogen atmosphere. Ten tons of each coal are 3/8-inch x 0, five tons of each are 14-mesh x 0, and five tons of each are 100-mesh x 0. Although TRW was within budget and on schedule, Department of Energy funding priorities in this area were altered such that the project was terminated prior to completion of the original scope of work. 9 figures, 3 tables.

  4. 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.

  5. 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.

  6. 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.

  7. The recycling of the coal fly ash in glass production

    SciTech Connect (OSTI)

    Erol, M.M.; Kucukbayrak, S.; Ersoy-Mericboyu, A.

    2006-09-15

    The recycling of fly ash obtained from the combustion of coal in thermal power plant has been studied. Coal fly ash was vitrified by melting at 1773 K for 5 hours without any additives. The properties of glasses produced from coal fly ash were investigated by means of Differential Thermal Analysis (DTA), X-ray Diffraction (XRD) and Scanning Electron Microscopy (SEM) techniques. DTA study indicated that there was only one endothermic peak at 1003 K corresponding to the glass transition temperature. XRD analysis showed the amorphous state of the glass sample produced from coal fly ash. SEM investigations revealed that the coal fly ash based glass sample had smooth surface. The mechanical, physical and chemical properties of the glass sample were also determined. Recycling of coal fly ash by using vitrification technique resulted to a glass material that had good mechanical, physical and chemical properties. Toxicity characteristic leaching procedure (TCLP) results showed that the heavy metals of Pb, Cr, Zn and Mn were successfully immobilized into the glass. It can be said that glass sample obtained by the recycling of coal fly ash can be taken as a non-hazardous material. Overall, results indicated that the vitrification technique is an effective way for the stabilization and recycling of coal fly ash.

  8. Development of an Advanced Fine Coal Suspension Dewatering Process

    SciTech Connect (OSTI)

    B. K. Parekh; D. P. Patil

    2008-04-30

    With the advancement in fine coal cleaning technology, recovery of fine coal (minus 28 mesh) has become an attractive route for the U.S. coal industry. The clean coal recovered using the advanced flotation technology i.e. column flotation, contains on average 20% solids and 80% water, with an average particle size of 35 microns. Fine coal slurry is usually dewatered using a vacuum dewatering technique, providing a material with about 25 to 30 percent moisture. The process developed in this project will improve dewatering of fine (0.6mm) coal slurry to less than 20 percent moisture. Thus, thermal drying of dewatered wet coal will be eliminated. This will provide significant energy savings for the coal industry along with some environmental benefits. A 1% increase in recovery of coal and producing a filter cake material of less than 20 % moisture will amount to energy savings of 1900 trillion Btu/yr/unit. In terms of the amount of coal it will be about 0.8% of the total coal being used in the USA for electric power generation. It is difficult to dewater the fine clean coal slurry to about 20% moisture level using the conventional dewatering techniques. The finer the particle, the larger the surface area and thus, it retains large amounts of moisture on the surface. The coal industry has shown some reluctance in using the advanced coal recovery techniques, because of unavailability of an economical dewatering technique which can provide a product containing less than 20% moisture. The U.S.DOE and Industry has identified the dewatering of coal fines as a high priority problem. The goal of the proposed program is to develop and evaluate a novel two stage dewatering process developed at the University of Kentucky, which involves utilization of two forces, namely, vacuum and pressure for dewatering of fine coal slurries. It has been observed that a fine coal filter cake formed under vacuum has a porous structure with water trapped in the capillaries. When this porous cake

  9. Economics of coal fines utilization

    SciTech Connect (OSTI)

    Hathi, V.; McHale, E.; Ramezan, M.; Winslow, J.

    1995-12-31

    In the twentieth century, coal has become the major fuel for electric power generation in the U.S. and most of the nonpetroleum-producing countries of the world. In 1998, the world coal-fired capacity for electric power generation was about 815 GW, consuming large quantities of coals of all ranks. Today, coal provides a third of the world`s energy requirements. In fact, coal use for power generation has grown steadily since the oil embargo in 1973 and has seen an even faster rate of growth in recent years. It has been reported that the global demand for new coal will increase by more than 1500 million tons by the year 2000. However, this increased production of coal has its drawbacks, including the concomitant production of coal waste. Reported estimates indicate that billions of tons of coal waste have already been disposed of in waste impoundments throughout the U.S. Further, in the U.S. today, about 20-25 % of each ton of mined coal is discarded by preparation plants as gob and plant tailings. It appears that the most economical near-term approach to coal waste recovery is to utilize the waste coal fines currently discarded with the refuse stream, rather than attempt to recover coal from waste impoundments that require careful prior evaluation and site preparation. A hypothetical circuit was designed to examine the economics of recovery and utilization of waste coal fines. The circuit recovers products from 100 tons per hour (tph) of coal waste feed recovering 70 tph of fine coal that can be used in coal-fired boilers. The present analysis indicates that the coal waste recovery is feasible and economical. In addition, significant environmental benefits can be expected.

  10. Appraisal of coal resources from uranium drill-hole logs, southern San Juan basin, New Mexico

    SciTech Connect (OSTI)

    Feldman, S.C.

    1984-04-01

    Geophysical logs from uranium drill holes in the Grants region are a valuable source of information on coal resources. Coal occurs in the southern San Juan basin of New Mexico in the Upper Cretaceous Gallup Sandstone, Crevasse Canyon Formation, and Menefee Formation. Uranium has been mined from the Upper Jurassic Morrison Formation that underlies the coal-bearing Cretaceous formations and is separated from them by approximately 1000 ft (300 m) of section. Permission was obtained from Santa Fe Mining, Inc., Pathfinder Mines Corp., and Ranchers Exploration and Development Corp. to examine their uranium drill logs for information on coal. Over 1400 logs spudded above the base of the Gallup formation were examined, and depth to coal, coal thickness, and coal stratigraphic horizon were determined for coal beds at least 3 ft (1 m) thick. Coal isopachs have been drawn, and depth from the surface to the first coal have been contoured for the Crevasse Canyon and Menefee Formations. Data from an earlier study, which used geophysical logs from petroleum test borings, has been incorporated. The relationship between the coal resources determined from uranium drill holes and known coal deposits and mines in the southern San Juan basin is discussed.

  11. EIA projections of coal supply and demand

    SciTech Connect (OSTI)

    Klein, D.E.

    1989-10-23

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

  12. DOE - Fossil Energy: Introduction to Coal Technology

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Introduction An Energy Lesson Cleaning Up Coal COAL is our most abundant fossil fuel. The United States has more coal than the rest of the world has oil. There is still enough coal ...

  13. DOE - Fossil Energy: Clean Coal Technology

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    2-Clean Coal Technology An Energy Lesson Cleaning Up Coal The Clean Coal Technology Program The Clean Coal Technology Program began in 1985 when the United States and Canada ...

  14. STEO November 2012 - coal supplies

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

    Despite drop in domestic coal production, U.S. coal exports to reach record high in 2012. While U.S. coal production is down 7 percent this year due in part to utilities switching to low-priced natural gas to generate electricity, American coal is still finding plenty of buyers in overseas markets. U.S. coal exports are expected to hit a record 125 million tons in 2012, the U.S. Energy Information Administration says in its new monthly short-term energy outlook. Coal exports are expected to

  15. State of Illinois 1982 annual coal, oil and gas report

    SciTech Connect (OSTI)

    Not Available

    1983-01-01

    This data compilation contains statistics from the coal industry and petroleum industry of Illinois. Data are given on the production, accidents, explosives, and mechanization of coal mines. Metal mines are only briefly described. The report from the Division of Oil and Gas contains data on oil well completions, oil wells plugged, water input wells, and salt water and waste disposal wells. The results of hearings in the division are included. The Land Reclamation Division reports data on permits and acreage affected by surface mining of coal, limestone, shale, clay, sand, and gravel. 2 figures, 76 tables.

  16. Method of extracting coal from a coal refuse pile

    DOE Patents [OSTI]

    Yavorsky, Paul M.

    1991-01-01

    A method of extracting coal from a coal refuse pile comprises soaking the coal refuse pile with an aqueous alkali solution and distributing an oxygen-containing gas throughout the coal refuse pile for a time period sufficient to effect oxidation of coal contained in the coal refuse pile. The method further comprises leaching the coal refuse pile with an aqueous alkali solution to solubilize and extract the oxidized coal as alkali salts of humic acids and collecting the resulting solution containing the alkali salts of humic acids. Calcium hydroxide may be added to the solution of alkali salts of humic acid to form precipitated humates useable as a low-ash, low-sulfur solid fuel.

  17. Coal combustion system

    DOE Patents [OSTI]

    Wilkes, Colin; Mongia, Hukam C.; Tramm, Peter C.

    1988-01-01

    In a coal combustion system suitable for a gas turbine engine, pulverized coal is transported to a rich zone combustor and burned at an equivalence ratio exceeding 1 at a temperature above the slagging temperature of the coal so that combustible hot gas and molten slag issue from the rich zone combustor. A coolant screen of water stretches across a throat of a quench stage and cools the combustible gas and molten slag to below the slagging temperature of the coal so that the slag freezes and shatters into small pellets. The pelletized slag is separated from the combustible gas in a first inertia separator. Residual ash is separated from the combustible gas in a second inertia separator. The combustible gas is mixed with secondary air in a lean zone combustor and burned at an equivalence ratio of less than 1 to produce hot gas motive at temperature above the coal slagging temperature. The motive fluid is cooled in a dilution stage to an acceptable turbine inlet temperature before being transported to the turbine.

  18. Common cause failure analysis of the rodded scram system of the Arkansas Nuclear One-Unit 1 Plant

    SciTech Connect (OSTI)

    Montague, D.F.; Campbell, D.J.; Flanagan, G.F.

    1986-10-01

    This study demonstrates the use of a formal method for common cause failure analysis in a reliability analysis of the Arkansas Nuclear One - Unit 1 rodded scram system. The scram system failure of interest is loss of capability of the system to shut the reactor down when required. The results of this analysis support the ATWS program sponsored by the US Nuclear Regulatory Commission. The methods used in this analysis support the NRC's Risk Methods Integration and Evaluation Program (RMIEP).

  19. Recent advances in the use of synchrotron radiation for the analysis of coal combustion products

    SciTech Connect (OSTI)

    Manowitz, B.

    1995-11-01

    Two major coal combustion problems are the formation and build-up of slag deposits on heat transfer surfaces and the production and control of toxic species in coal combustion emissions. The use of synchrotron radiation for the analysis of coal combustion products can play a role in the better understanding of both these phenomena. An understanding of the chemical composition of such slags under boiler operating conditions and as a function of the mineral composition of various coals is one ultimate goal of this program. The principal constituents in the ash of many coals are the oxides of Si, Al, Fe, Ca, K, S, and Na. The analytical method required must be able to determine the functional forms of all these elements both in coal and in coal ash at elevated temperatures. One unique way of conducting these analyses is by x-ray spectroscopy.

  20. 2009 Coal Age Buyers Guide

    SciTech Connect (OSTI)

    2009-07-15

    The buyers guide lists more than 1200 companies mainly based in the USA, that provide equipment and services to US coal mines and coal preparation plants. The guide is subdivided by product categories.

  1. 2008 Coal Age buyers guide

    SciTech Connect (OSTI)

    2008-07-15

    The buyers guide lists more than 1200 companies mainly based in the USA, that provide equipment and services to US coal mines and coal preparation plants. The guide is subdivided by product categories.

  2. Low-rank coal research

    SciTech Connect (OSTI)

    Weber, G. F.; Laudal, D. L.

    1989-01-01

    This work is a compilation of reports on ongoing research at the University of North Dakota. Topics include: Control Technology and Coal Preparation Research (SO{sub x}/NO{sub x} control, waste management), Advanced Research and Technology Development (turbine combustion phenomena, combustion inorganic transformation, coal/char reactivity, liquefaction reactivity of low-rank coals, gasification ash and slag characterization, fine particulate emissions), Combustion Research (fluidized bed combustion, beneficiation of low-rank coals, combustion characterization of low-rank coal fuels, diesel utilization of low-rank coals), Liquefaction Research (low-rank coal direct liquefaction), and Gasification Research (hydrogen production from low-rank coals, advanced wastewater treatment, mild gasification, color and residual COD removal from Synfuel wastewaters, Great Plains Gasification Plant, gasifier optimization).

  3. NEMS Modeling of Coal Plants

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

    Liquid Fuels Market Module Model inputs for coal plants 3 * Existing coal plants - plant specific ... FF - Cost to convert to natural gas-fired steam plant - Cost to implement heat ...

  4. Coal bed methane potential in Venezuela-The forgotten resource

    SciTech Connect (OSTI)

    Vasquez-Herrera, A.R.; Bereskin, S.R.; McLennan, J.D.

    1996-08-01

    In nations already possessing riches of hydrocarbons situated in conventional reservoirs, evaluation of coal-bearing sequences for potential gas is logically delayed or ignored. Nonetheless, Venezuelan coals have long been recognized as stratigraphically associated with oil accumulations, but because coalbed methane (CBM) is a relatively new worldwide phenomenon, CBM potential has not been widely assessed in the country. Two general areas contain vast accumulations of coal for potential CBM activity: (1) the Maracaibo basin, containing the Guasare (northwest), Lobatera-Santo Domingo (southwest) and Urumaco (northeast) districts; and (2) the Oficina basin in eastern Venezuela possessing abundant accumulations related to the Faja Petrolifera de Orinoco (Orinoco Oil Belt). In both basins, high volatile bituminous and lignitic coals of mostly Oligo-Miocene age are abundantly found. Older coals are also present especially in the Maracaibo area. Two factors represent powerful incentives for CBM exploitation: addition of known reserves for economic considerations, and aid in bringing heavy crude oil to the surface by additional gas lift and oil viscosity reduction. Other favorable factors important for CBM methodology include: (1) abundant coals lying above known conventional reservoir targets; (2).6 - 1% vitrinite reflectance measurements in the Orinoco Oil Belt; (3) many coals occurring above 1500 m; (4) documented mine explosions especially in the 1920s and 1930s; (5) a strong tectonic overprint to perhaps add shear fractures to already cleated coals; (6) individual coal thickness up to 12 m with averages in the .8 m range; and (7) gas shows while drilling coal-rich intervals.

  5. U.S. Coal Reserves

    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 & distribution Coal-fired electric power plants Transportation costs to electric power sector International All coal data reports Analysis & Projections Major Topics Most popular Consumption Environment Imports & exports Industry characteristics Prices Production Projections Recurring Reserves Stocks All

  6. NEMS Modeling of Coal Plants

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

    NEMS Modeling of Coal Plants Office of Electricity, Coal, Nuclear, and Renewable Analysis Laura Martin June 14, 2016 Washington, DC 2 EMM Structure EFD ECP EFP ELD Laura Martin Washington, DC, June 14, 2016 Electricity Load and Demand Submodule Liquid Fuels Market Module Model inputs for coal plants 3 * Existing coal plants - plant specific inputs - Fixed and variable operating and maintenance costs, annual capital additions - Retrofit costs (capital and O&M) - FGD, DSI, SCR, SNCR, CCS, FF -

  7. Sustainable development with clean coal

    SciTech Connect (OSTI)

    1997-08-01

    This paper discusses the opportunities available with clean coal technologies. Applications include new power plants, retrofitting and repowering of existing power plants, steelmaking, cement making, paper manufacturing, cogeneration facilities, and district heating plants. An appendix describes the clean coal technologies. These include coal preparation (physical cleaning, low-rank upgrading, bituminous coal preparation); combustion technologies (fluidized-bed combustion and NOx control); post-combustion cleaning (particulate control, sulfur dioxide control, nitrogen oxide control); and conversion with the integrated gasification combined cycle.

  8. Healy Clean Coal Project

    SciTech Connect (OSTI)

    1997-12-31

    The Healy Clean Coal Project, selected by the U.S. Department of Energy under Round 111 of the Clean Coal Technology Program, has been constructed and is currently in the Phase 111 Demonstration Testing. The project is owned and financed by the Alaska Industrial Development and Export Authority (AIDEA), and is cofunded by the U.S. Department of Energy. Construction was 100% completed in mid-November of 1997, with coal firing trials starting in early 1998. Demonstration testing and reporting of the results will take place in 1998, followed by commercial operation of the facility. The emission levels of nitrogen oxides (NOx), sulfur dioxide (S02), and particulate from this 50-megawatt plant are expected to be significantly lower than current standards.

  9. Hydroliquefaction of coal

    DOE Patents [OSTI]

    Sze, Morgan C.; Schindler, Harvey D.

    1982-01-01

    Coal is catalytically hydroliquefied by passing coal dispersed in a liquefaction solvent and hydrogen upwardly through a plurality of parallel expanded catalyst beds, in a single reactor, in separate streams, each having a cross-sectional flow area of no greater than 255 inches square, with each of the streams through each of the catalyst beds having a length and a liquid and gas superficial velocity to maintain an expanded catalyst bed and provide a Peclet Number of at least 3. If recycle is employed, the ratio of recycle to total feed (coal and liquefaction solvent) is no greater than 2:1, based on volume. Such conditions provide for improved selectivity to liquid product to thereby reduce hydrogen consumption. The plurality of beds are formed by partitions in the reactor.

  10. Coal Market Module - NEMS Documentation

    Reports and Publications (EIA)

    2014-01-01

    Documents the objectives and the conceptual and methodological approach used in the development of the National Energy Modeling System's (NEMS) Coal Market Module (CMM) used to develop the Annual Energy Outlook 2014 (AEO2014). This report catalogues and describes the assumptions, methodology, estimation techniques, and source code of CMM's two submodules. These are the Coal Production Submodule (CPS) and the Coal Distribution Submodule (CDS).

  11. Coal and Coal-Biomass to Liquids FAQs

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Coal and Coal-Biomass to Liquids FAQs faq-header-big.jpg BASICS Q: How are gasoline and diesel fuel made from coal? A: Gasoline and diesel fuels can be produced from coal in two distinct processes: Indirect Liquefaction and Direct Liquefaction. In Indirect Liquefaction, coal is first gasified to produce synthesis gas (syngas for short), which is a mixture containing primarily hydrogen (H2) and carbon monoxide (CO) gases. The Fischer-Tropsch (FT) synthesis is a commercial process that can be used

  12. PNNL Coal Gasification Research

    SciTech Connect (OSTI)

    Reid, Douglas J.; Cabe, James E.; Bearden, Mark D.

    2010-07-28

    This report explains the goals of PNNL in relation to coal gasification research. The long-term intent of this effort is to produce a syngas product for use by internal Pacific Northwest National Laboratory (PNNL) researchers in materials, catalysts, and instrumentation development. Future work on the project will focus on improving the reliability and performance of the gasifier, with a goal of continuous operation for 4 hours using coal feedstock. In addition, system modifications to increase operational flexibility and reliability or accommodate other fuel sources that can be used for syngas production could be useful.

  13. Clean Coal Power Initiative

    SciTech Connect (OSTI)

    Doug Bartlett; Rob James; John McDermott; Neel Parikh; Sanjay Patnaik; Camilla Podowski

    2006-03-31

    This report is the fifth quarterly Technical Progress Report submitted by NeuCo, Incorporated, under Award Identification Number, DE-FC26-04NT41768. This award is part of the Clean Coal Power Initiative (''CCPI''), the ten-year, $2B initiative to demonstrate new clean coal technologies in the field. This report is one of the required reports listed in Attachment B Federal Assistance Reporting Checklist, part of the Cooperative Agreement. The report covers the award period January 1, 2006 - March 31, 2006 and NeuCo's efforts within design, development, and deployment of on-line optimization systems during that period.

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

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

    2014 and 2013 (percent) 2014 2013 Coal-Producing State Underground Surface Total Underground Surface Total Alabama 89.95 68.96 83.98 89.38 66.73 81.78 Alaska - 50.06 50.06 - ...

  15. Process for coal liquefaction employing selective coal feed

    DOE Patents [OSTI]

    Hoover, David S.; Givens, Edwin N.

    1983-01-01

    An improved coal liquefaction process is provided whereby coal conversion is improved and yields of pentane soluble liquefaction products are increased. In this process, selected feed coal is pulverized and slurried with a process derived solvent, passed through a preheater and one or more dissolvers in the presence of hydrogen-rich gases at elevated temperatures and pressures, following which solids, including mineral ash and unconverted coal macerals, are separated from the condensed reactor effluent. The selected feed coals comprise washed coals having a substantial amount of mineral matter, preferably from about 25-75%, by weight, based upon run-of-mine coal, removed with at least 1.0% by weight of pyritic sulfur remaining and exhibiting vitrinite reflectance of less than about 0.70%.

  16. Macromolecular coal structure as revealed by novel diffusion tests

    SciTech Connect (OSTI)

    Peppas, N.A.; Olivares, J.; Drummond, R.; Lustig, S.

    1990-01-01

    The main goal of the present work was the elucidation of the mechanistic characteristics of dynamic transport of various penetrants (solvents) in thin sections of coals by examining their penetrant uptake, front swelling and stress development. An important objective of this work was the study of coal network structure in different thermodynamically compatible penetrants and the analysis of dynamic swelling in terms of present anomalous transport theories. Interferometry/polariscopy, surface image analysis and related techniques were used to quantify the stresses and solvent concentration profiles in these sections. Dynamic and equilibrium swelling behavior were correlated using the polar interaction contributions of the solvent solubility parameters. The penetrant front position was followed in thin coal sections as a function of time. The initial front velocity was calculated for various coals and penetrants. Our penetrant studies with thin coal section from the same coal sample but with different thickness show that within the range of 150 {mu}m to 1500{mu}m the transport mechanism of dimethyl formamide in the macromolecular coal network is non-Fickian. In fact, for the thickest samples the transport mechanism is predominately Case-II whereas in the thinner samples penetrant uptake may be diffusion-controlled. Studies in various penetrants such as acetone, cyclohexane, methanol, methyl ethyl ketone, toluene and methylene chloride indicated that penetrant transport is a non-Fickian phenomenon. Stresses and cracks were observed for transport of methylene chloride. 73 refs., 88 figs., 15 tabs.

  17. Pretreatment of coal during transport

    DOE Patents [OSTI]

    Johnson, Glenn E.; Neilson, Harry B.; Forney, Albert J.; Haynes, William P.

    1977-04-19

    Many available coals are "caking coals" which possess the undesirable characteristic of fusing into a solid mass when heated through their plastic temperature range (about 400.degree. C.) which temperature range is involved in many common treatment processes such as gasification, hydrogenation, carbonization and the like. Unless the caking properties are first destroyed, the coal cannot be satisfactorily used in such processes. A process is disclosed herein for decaking finely divided coal during its transport to the treating zone by propelling the coal entrained in an oyxgen-containing gas through a heated transport pipe whereby the separate transport and decaking steps of the prior art are combined into a single step.

  18. Basic geological and analytical properties of selected coal seams for coal interface detection. Information circular/1993

    SciTech Connect (OSTI)

    Maksimovic, S.; Mowrey, G.L.

    1993-01-01

    One important element of the U.S. Bureau of Mines computer-assisted mining research program is the development of a reliable coal interface detection (CID) system. Several candidate CID concepts currently being investigated by the Bureau include use of natural gamma radiation (NGR), vibration, passive infrared, video, and radar. To help establish which CID sensor technologies need to be developed for a given seam, the Bureau has collected geological and mining practices data from over 460 underground and surface mines in the United States. Also, over 500 coal and rock samples have been obtained for laboratory analyses of ash content, sulfur content, heating value, and NGR. The Bureau's findings indicate that the immediate roof strata in 81 percent of the underground mines and 93 percent of the surface mines are made up of shale, draw slate, or claystone. The immediate floor strata in 88 percent of both the underground and surface mines consist of fireclay, shale, draw slate, or claystone.

  19. Coal combustion research

    SciTech Connect (OSTI)

    Daw, C.S.

    1996-06-01

    This section describes research and development related to coal combustion being performed for the Fossil Energy Program under the direction of the Morgantown Energy Technology Center. The key activity involves the application of chaos theory for the diagnosis and control of fossil energy processes.

  20. Catalytic coal hydroliquefaction process

    DOE Patents [OSTI]

    Garg, Diwakar (Macungie, PA)

    1984-01-01

    A process is described for the liquefaction of coal in a hydrogen donor solvent in the presence of hydrogen and a co-catalyst combination of iron and a Group VI or Group VIII non-ferrous metal or compounds of the catalysts.

  1. Catalytic coal liquefaction process

    DOE Patents [OSTI]

    Garg, Diwakar (Macungie, PA); Sunder, Swaminathan (Allentown, PA)

    1986-01-01

    An improved process for catalytic solvent refining or hydroliquefaction of non-anthracitic coal at elevated temperatures under hydrogen pressure in a solvent comprises using as catalyst a mixture of a 1,2- or 1,4-quinone and an alkaline compound, selected from ammonium, alkali metal, and alkaline earth metal oxides, hydroxides or salts of weak acids.

  2. Coal Preparation Plant Simulation

    Energy Science and Technology Software Center (OSTI)

    1992-02-25

    COALPREP assesses the degree of cleaning obtained with different coal feeds for a given plant configuration and mode of operation. It allows the user to simulate coal preparation plants to determine an optimum plant configuration for a given degree of cleaning. The user can compare the performance of alternative plant configurations as well as determine the impact of various modes of operation for a proposed configuration. The devices that can be modelled include froth flotationmore » devices, washers, dewatering equipment, thermal dryers, rotary breakers, roll crushers, classifiers, screens, blenders and splitters, and gravity thickeners. The user must specify the plant configuration and operating conditions and a description of the coal feed. COALPREP then determines the flowrates within the plant and a description of each flow stream (i.e. the weight distribution, percent ash, pyritic sulfur and total sulfur, moisture, BTU content, recoveries, and specific gravity of separation). COALPREP also includes a capability for calculating the cleaning cost per ton of coal. The IBM PC version contains two auxiliary programs, DATAPREP and FORLIST. DATAPREP is an interactive preprocessor for creating and editing COALPREP input data. FORLIST converts carriage-control characters in FORTRAN output data to ASCII line-feed (X''0A'') characters.« less

  3. Coal Preparation Plant Simulation

    Energy Science and Technology Software Center (OSTI)

    1992-02-25

    COALPREP assesses the degree of cleaning obtained with different coal feeds for a given plant configuration and mode of operation. It allows the user to simulate coal preparation plants to determine an optimum plant configuration for a given degree of cleaning. The user can compare the performance of alternative plant configurations as well as determine the impact of various modes of operation for a proposed configuration. The devices that can be modelled include froth flotationmore » devices, washers, dewatering equipment, thermal dryers, rotary breakers, roll crushers, classifiers, screens, blenders and splitters, and gravity thickeners. The user must specify the plant configuration and operating conditions and a description of the coal feed. COALPREP then determines the flowrates within the plant and a description of each flow stream (i.e. the weight distribution, percent ash, pyritic sulfur and total sulfur, moisture, BTU content, recoveries, and specific gravity of separation). COALPREP also includes a capability for calculating the cleaning cost per ton of coal.« less

  4. Kinetics of coal pyrolysis

    SciTech Connect (OSTI)

    Seery, D.J.; Freihaut, J.D.; Proscia, W.M. ); Howard, J.B.; Peters, W.; Hsu, J.; Hajaligol, M.; Sarofim, A. ); Jenkins, R.; Mallin, J.; Espindola-Merin, B. ); Essenhigh, R.; Misra, M.K. )

    1989-07-01

    This report contains results of a coordinated, multi-laboratory investigation of coal devolatilization. Data is reported pertaining to the devolatilization for bituminous coals over three orders of magnitude in apparent heating rate (100 to 100,000 + {degree}C/sec), over two orders of magnitude in particle size (20 to 700 microns), final particle temperatures from 400 to 1600{degree}C, heat transfer modes ranging from convection to radiative, ambient pressure ranging from near vacuum to one atmosphere pressure. The heat transfer characteristics of the reactors are reported in detail. It is assumed the experimental results are to form the basis of a devolatilization data base. Empirical rate expressions are developed for each phase of devolatilization which, when coupled to an awareness of the heat transfer rate potential of a particular devolatilization reactor, indicate the kinetics emphasized by a particular system reactor plus coal sample. The analysis indicates the particular phase of devolatilization that will be emphasized by a particular reactor type and, thereby, the kinetic expressions appropriate to that devolatilization system. Engineering rate expressions are developed from the empirical rate expressions in the context of a fundamental understanding of coal devolatilization developed in the course of the investigation. 164 refs., 223 figs., 44 tabs.

  5. Annual Coal Distribution Tables

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

    and Foreign Distribution of U.S. Coal by State of Origin, 2001 State Region Domestic Foreign Total Alabama 14,828 4,508 19,336 Alaska 825 698 1,524 Arizona 13,143 - 13,143...

  6. Catalytic coal liquefaction process

    DOE Patents [OSTI]

    Garg, D.; Sunder, S.

    1986-12-02

    An improved process for catalytic solvent refining or hydroliquefaction of non-anthracitic coal at elevated temperatures under hydrogen pressure in a solvent comprises using as catalyst a mixture of a 1,2- or 1,4-quinone and an alkaline compound, selected from ammonium, alkali metal, and alkaline earth metal oxides, hydroxides or salts of weak acids. 1 fig.

  7. Biochemical transformation of coals

    DOE Patents [OSTI]

    Lin, M.S.; Premuzic, E.T.

    1999-03-23

    A method of biochemically transforming macromolecular compounds found in solid carbonaceous materials, such as coal is provided. The preparation of new microorganisms, metabolically weaned through challenge growth processes to biochemically transform solid carbonaceous materials at extreme temperatures, pressures, pH, salt and toxic metal concentrations is also disclosed. 7 figs.

  8. Biochemical transformation of coals

    DOE Patents [OSTI]

    Lin, Mow S. (Rocky Point, NY); Premuzic, Eugene T. (East Moriches, NY)

    1999-03-23

    A method of biochemically transforming macromolecular compounds found in solid carbonaceous materials, such as coal is provided. The preparation of new microorganisms, metabolically weaned through challenge growth processes to biochemically transform solid carbonaceous materials at extreme temperatures, pressures, pH, salt and toxic metal concentrations is also disclosed.

  9. Coal liquefaction process

    DOE Patents [OSTI]

    Maa, Peter S.

    1978-01-01

    A process for liquefying a particulate coal feed to produce useful petroleum-like liquid products which comprises contacting; in a series of two or more coal liquefaction zones, or stages, graded with respect to temperature, an admixture of a polar compound; or compounds, a hydrogen donor solvent and particulate coal, the total effluent being passed in each instance from a low temperature zone, or stage to the next succeeding higher temperature zone, or stage, of the series. The temperature within the initial zone, or stage, of the series is maintained about 70.degree. F and 750.degree. F and the temperature within the final zone, or stage, is maintained between about 750.degree. F and 950.degree. F. The residence time within the first zone, or stage, ranges, generally, from about 20 to about 150 minutes and residence time within each of the remaining zones, or stages, of the series ranges, generally, from about 10 minutes to about 70 minutes. Further steps of the process include: separating the product from the liquefaction zone into fractions inclusive of a liquid solvent fraction; hydrotreating said liquid solvent fraction in a hydrogenation zone; and recycling the hydrogenated liquid solvent mixture to said coal liquefaction zones.

  10. National Coal Quality Inventory (NACQI)

    SciTech Connect (OSTI)

    Robert Finkelman

    2005-09-30

    The U.S. Geological Survey (USGS) conducted the National Coal Quality Inventory (NaCQI) between 1999 and 2005 to address a need for quality information on coals that will be mined during the next 20-30 years. Collaboration between the USGS, State geological surveys, universities, coal burning utilities, and the coal mining industry plus funding support from the Electric Power Research Institute (EPRI) and the U.S. Department of Energy (DOE) permitted collection and submittal of coal samples for analysis. The chemical data (proximate and ultimate analyses; major, minor and trace element concentrations) for 729 samples of raw or prepared coal, coal associated shale, and coal combustion products (fly ash, hopper ash, bottom ash and gypsum) from nine coal producing States are included. In addition, the project identified a new coal reference analytical standard, to be designated CWE-1 (West Elk Mine, Gunnison County, Colorado) that is a high-volatile-B or high-volatile-A bituminous coal with low contents of ash yield and sulfur, and very low, but detectable contents of chlorine, mercury and other trace elements.

  11. Lignin-assisted coal depolymerization

    SciTech Connect (OSTI)

    Lalvani, S.B.

    1991-01-01

    Previous research has shown that addition of lignin-derived liquids to coal stirred in tetralin under mild reaction conditions (375{degree}C and 300--500 psig) results in a marked enhancement in the rate of coal depolymerization. A mathematical model was developed to study the kinetics of coal depolymerization in the presence of liquid-derived liquids. In the present study, a reaction pathway was formulated to explain the enhancement in coal depolymerization due to lignin (solid) addition. The model postulated assumes that the products of lignin obtained during thermolysis interact with the reactive moieties present in coal while simultaneous depolymerization of coal occurs. A good fit between the experimental data and the kinetic model was found. The results show that in addition to the enhancement in the rate of coal depolymerization, lignin also reacts (and enhances the extent of depolymerization of coal) with those reaction sites in coal that are not susceptible to depolymerization when coal alone is reacted in tetralin under identical reaction conditions. Additional work is being carried out to determine a thorough materials balance on the lignin-assisted coal depolymerization process. A number of liquid samples have been obtained which are being studied for their stability in various environments. 5 refs., 4 figs., 1 tab.

  12. Coal mine methane global review

    SciTech Connect (OSTI)

    2008-07-01

    This is the second edition of the Coal Mine Methane Global Overview, updated in the summer of 2008. This document contains individual, comprehensive profiles that characterize the coal and coal mine methane sectors of 33 countries - 22 methane to market partners and an additional 11 coal-producing nations. The executive summary provides summary tables that include statistics on coal reserves, coal production, methane emissions, and CMM projects activity. An International Coal Mine Methane Projects Database accompanies this overview. It contains more detailed and comprehensive information on over two hundred CMM recovery and utilization projects around the world. Project information in the database is updated regularly. This document will be updated annually. Suggestions for updates and revisions can be submitted to the Administrative Support Group and will be incorporate into the document as appropriate.

  13. The shell coal gasification process

    SciTech Connect (OSTI)

    Koenders, L.O.M.; Zuideveld, P.O.

    1995-12-01

    Future Integrated Coal Gasification Combined Cycle (ICGCC) power plants will have superior environmental performance and efficiency. The Shell Coal Gasification Process (SCGP) is a clean coal technology, which can convert a wide range of coals into clean syngas for high efficiency electricity generation in an ICGCC plant. SCGP flexibility has been demonstrated for high-rank bituminous coals to low rank lignites and petroleum coke, and the process is well suited for combined cycle power generation, resulting in efficiencies of 42 to 46% (LHV), depending on choice of coal and gas turbine efficiency. In the Netherlands, a 250 MWe coal gasification combined cycle plant based on Shell technology has been built by Demkolec, a development partnership of the Dutch Electricity Generating Board (N.V. Sep). The construction of the unit was completed end 1993 and is now followed by start-up and a 3 year demonstration period, after that the plant will be part of the Dutch electricity generating system.

  14. Coal-oil slurry preparation

    DOE Patents [OSTI]

    Tao, John C.

    1983-01-01

    A pumpable slurry of pulverized coal in a coal-derived hydrocarbon oil carrier which slurry is useful as a low-ash, low-sulfur clean fuel, is produced from a high sulfur-containing coal. The initial pulverized coal is separated by gravity differentiation into (1) a high density refuse fraction containing the major portion of non-coal mineral products and sulfur, (2) a lowest density fraction of low sulfur content and (3) a middlings fraction of intermediate sulfur and ash content. The refuse fraction (1) is gasified by partial combustion producing a crude gas product from which a hydrogen stream is separated for use in hydrogenative liquefaction of the middlings fraction (3). The lowest density fraction (2) is mixed with the liquefied coal product to provide the desired fuel slurry. Preferably there is also separately recovered from the coal liquefaction LPG and pipeline gas.

  15. Appalachian recapitalization: United Coal comes full circle

    SciTech Connect (OSTI)

    Fiscor, S.

    2006-05-15

    The article recounts the recent history of the United Coal Co. which exited from the coal business between 1992 and 1997 and has recently returned. More coal reserves have been added by its four companies Sapphire Coal, Carter Roag Coal, Pocahontas Coal and Wellmore, bringing the grand total to 222.6 Mtons. United Coal's developments and investment strategy are discussed. The company headquarters are in Bristol, Va., USA. 1 tab., 7 photos.

  16. Disposal of chemical agents and munitions stored at Pine Bluff Arsenal, Pine Bluff, Arkansas

    SciTech Connect (OSTI)

    Ensminger, J.T.; Hillsman, E.L.; Johnson, R.D.; Morrisey, J.A.; Staub, W.P.; Boston, C.R.; Hunsaker, D.B.; Leibsch, E.; Rickert, L.W.; Tolbert, V.R.; Zimmerman, G.P.

    1991-09-01

    The Pine Bluff Arsenal (PBA) near Pine Bluff, Arkansas, is one of eight continental United States (CONUS) Army installations where lethal unitary chemical agents and munitions are stored and where destruction of agents and munitions is proposed under the Chemical Stockpile Disposal Program (CSDP). The chemical agent inventory at PBA consists of approximately 12%, by weight, of the total US stockpile. The destruction of the stockpile is necessary to eliminate the risk to the public from continued storage and to dispose of obsolete and leaking munitions. In 1988 the US Army issued a Final Programmatic Environmental Impact Statement (FPEIS) for the CSDP that identified on-site disposal of agents and munitions as the environmentally preferred alternative (i.e., the alternative with the least potential to cause significant adverse impacts). The purpose of this report is to examine the proposed implementation of on-site disposal at PBA in light of more recent and more detailed data than those on which the FPEIS is based. New population data were used to compute fatalities using the same computation methods and values for all other parameters as in the FPEIS. Results indicate that all alternatives are indistinguishable when the potential health impacts to the PBA community are considered. However, risks from on-site disposal are in all cases equal to or less than risks from other alternatives. Furthermore, no unique resources with the potential to prevent or delay implementation of on-site disposal at PBA have been identified.

  17. Arkansas Natural Gas in Underground Storage (Base Gas) (Million Cubic Feet)

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

    Base Gas) (Million Cubic Feet) Arkansas Natural Gas in Underground Storage (Base Gas) (Million Cubic Feet) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1990 19,202 19,202 19,202 19,202 19,202 19,202 19,202 19,202 19,202 19,202 19,202 19,202 1991 19,202 19,202 19,202 19,202 19,202 19,202 19,202 19,202 19,202 19,202 19,202 19,202 1992 19,202 19,202 19,112 19,021 19,007 19,007 19,007 19,007 19,007 18,887 18,748 18,615 1993 18,607 18,523 18,484 18,472 18,156 17,897 17,888 17,888 17,888

  18. Arkansas Natural Gas in Underground Storage - Change in Working Gas from

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

    Same Month Previous Year (Percent) Percent) Arkansas Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Percent) Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1991 -4.4 -8.3 -11.6 -14.2 -13.7 -14.5 -14.1 -18.0 -20.2 -20.4 -25.8 -30.6 1992 -22.4 -25.3 -26.8 -25.8 -27.1 -23.8 -18.0 -10.3 -5.1 -6.0 -1.3 1.0 1993 1.6 -2.9 -4.6 -5.4 -14.6 -17.3 -27.6 -34.0 -37.6 -37.9 -42.3 -48.2 1994 -63.6 -74.6 -86.5 -87.0 -71.6 -60.3 -47.2 -35.4 -31.0 -29.2 -21.3

  19. AQUEOUS BIPHASE EXTRACTION FOR PROCESSING OF FINE COAL

    SciTech Connect (OSTI)

    K. Osseo-Asare; X. Zeng

    2002-01-01

    The objective of this research project is to develop an aqueous biphase extraction process for the treatment of fine coals. Aqueous biphase extraction is an advanced separation technology that relies on the ability of an aqueous system consisting of a water-soluble polymer and another component, e.g., another polymer, an inorganic salt, or a nonionic surfactant, to separate into two immiscible aqueous phases. The principle behind the partition of solid particles in aqueous biphase systems is the physicochemical interaction between the solid surface and the surrounding liquid solution. In order to remove sulfur and mineral matter from fine coal with aqueous biphasic extraction, it is necessary to know the partitioning behavior of coal, as well as the inorganic mineral components. Therefore, in this research emphasis was placed on the partitioning behavior of fine coal particles as well as model fine inorganic particles in aqueous biphase systems.

  20. Spin-mapping of coal structures with ESE and ENDOR

    SciTech Connect (OSTI)

    Belford, R.L.; Clarkson, R.B.

    1991-12-01

    The goals of this program include developing a system for the analysis of the chemical forms of organic sulfur in coal and for study of coal particle surfaces by multifrequency EPR spectroscopy, ENDOR, and ESE spectroscopy and Applying it to coals, to the effects of treatment upon their sulfur-containing organic components, and to related carbonaceous materials (chars and the like). The approach is to utilize the naturally-occurring unpaired electrons in the organic structures of coals as spies to provide molecular structure information, reading out the information with Electron Paramagnetic Resonance (EPR) spectroscopy. Several forms of EPR are employed: Multifrequency continuous-wave (CW) EPR, from 1 GHz to 240 GHz source frequency; electron-nuclear double resonance (ENDOR), in which NMR spectra at paramagnetic centers are obtained by EPR detection; and pulsed EPR, including ESE (Electron Spin Echo) spectroscopy.

  1. Eight Advanced Coal Projects Chosen for Further Development by DOE's University Coal Research Program

    Broader source: Energy.gov [DOE]

    DOE has selected eight new projects to further advanced coal research under the University Coal Research Program. The selected projects will improve coal conversion and use and will help propel technologies for future advanced coal power systems.

  2. Noise exposures in US coal mines

    SciTech Connect (OSTI)

    Seiler, J.P.; Valoski, M.P.; Crivaro, M.A.

    1994-05-01

    Mine Safety and Health Administration (MSHA) inspectors conduct full-shift environmental noise surveys to determine the occupational noise levels to which coal miners are exposed. These noise surveys are performed to determine compliance with the noise standard promulgated under the Federal Mine Safety and Health Act of 1977. Data from over 60,000 full-shift noise surveys conducted from fiscal year 1986 through 1992 were entered into a computer data base to facilitate analysis. This paper presents the mean and standard deviation of over 60,000 full-shift noise dose measurements for various underground and surface coal mining occupations. Additionally, it compares and contrasts the levels with historical noise exposure measurements for selected coal mining occupations that were published in the 1970`s. The findings were that the percentage of miners surveyed that were subjected to noise exposures above 100%, neglecting personal hearing protectors, were 26.5% and 21.6% for surface and underground mining, respectively. Generally, the trend is that the noise exposures for selected occupations have decreased since the 1970`s.

  3. Summary of coal export project

    SciTech Connect (OSTI)

    Not Available

    1987-01-01

    Through the international coal project and related activities, SSEB has called attention to the problems and potential of the US coal industry. The program has provided an excellent format for frank discussions on the problems facing US coal exports. Every effort must be made to promote coal and its role in the southern economy. Coal is enjoying its best years in the domestic market. While the export market is holding its own, there is increased competition in the world market from Australia, Columbia, China and, to a lesser extent, Russia. This is coming at a time when the US has enacted legislation and plans are underway to deepen ports. In addition there is concern that increased US coal and electricity imports are having a negative impact on coal production. These limiting factors suggest the US will remain the swing supplier of coal on the world market in the near future. This presents a challenge to the US coal and related industry to maintain the present market and seek new markets as well as devote research to new ways to use coal more cleanly and efficiently.

  4. Moist caustic leaching of coal

    DOE Patents [OSTI]

    Nowak, Michael A.

    1994-01-01

    A process for reducing the sulfur and ash content of coal. Particulate coal is introduced into a closed heated reaction chamber having an inert atmosphere to which is added 50 mole percent NaOH and 50 mole percent KOH moist caustic having a water content in the range of from about 15% by weight to about 35% by weight and in a caustic to coal weight ratio of about 5 to 1. The coal and moist caustic are kept at a temperature of about 300.degree. C. Then, water is added to the coal and caustic mixture to form an aqueous slurry, which is washed with water to remove caustic from the coal and to produce an aqueous caustic solution. Water is evaporated from the aqueous caustic solution until the water is in the range of from about 15% by weight to about 35% by weight and is reintroduced to the closed reaction chamber. Sufficient acid is added to the washed coal slurry to neutralize any remaining caustic present on the coal, which is thereafter dried to produce desulfurized coal having not less than about 90% by weight of the sulfur present in the coal feed removed and having an ash content of less than about 2% by weight.

  5. High pressure rotary piston coal feeder for coal gasification applications

    DOE Patents [OSTI]

    Gencsoy, Hasan T.

    1977-05-24

    The subject development is directed to an apparatus for feeding pulverized coal into a coal gasifier operating at relatively high pressures and elevated temperatures. This apparatus is a rotary piston feeder which comprises a circular casing having a coal loading opening therein diametrically opposed from a coal discharge and contains a rotatable discoid rotor having a cylinder in which a reciprocateable piston is disposed. The reciprocation of the piston within the cylinder is provided by a stationary conjugate cam arrangement whereby the pulverized coal from a coal hopper at atmospheric pressure can be introduced into the cylinder cavity and then discharged therefrom into the high-pressure gasifier without the loss of high pressure gases from within the latter.

  6. H. R. 1078: This Act may be cited as the National Coal and Extractive Energy Strategy Act of 1991, introduced in the House of Representatives, One Hundred Second Congress, First Session, February 21, 1991

    SciTech Connect (OSTI)

    Not Available

    1991-01-01

    This bill would amend the Surface Mining Control and Reclamation Act of 1977 and the Mineral Leasing Act to promote the production of coal and other extractive energy sources. Sections of the bill describe the following: coal remining; metallurgical coal development; coal bed methane developments; Federal coal leasing amendments; Federal mineral receipts management; coalfield assistance, restoration and enhancement; and Federal onshore oil and gas leasing amendments.

  7. Process for changing caking coals to noncaking coals

    DOE Patents [OSTI]

    Beeson, Justin L. (Woodridge, IL)

    1980-01-01

    Caking coals are treated in a slurry including alkaline earth metal hydroxides at moderate pressures and temperatures in air to form noncaking carbonaceous material. Hydroxides such as calcium hydroxide, magnesium hydroxide or barium hydroxide are contemplated for slurrying with the coal to interact with the agglomerating constituents. The slurry is subsequently dewatered and dried in air at atmospheric pressure to produce a nonagglomerating carbonaceous material that can be conveniently handled in various coal conversion and combustion processes.

  8. Assessment of underground coal gasification in bituminous coals: catalog of bituminous coals and site selection. Appendix A. National coal resource data system: Ecoal, Wcoal, and Bmalyt. Final report, Phase I. [Bituminous coal; by state; coal seam depth and thickness; identification

    SciTech Connect (OSTI)

    1982-01-31

    Appendix A is a catalog of the bituminous coal in 29 states of the contiguous United States which contain identified bituminous coal resources.

  9. Coal Bed Methane Primer

    SciTech Connect (OSTI)

    Dan Arthur; Bruce Langhus; Jon Seekins

    2005-05-25

    During the second half of the 1990's Coal Bed Methane (CBM) production increased dramatically nationwide to represent a significant new source of income and natural gas for many independent and established producers. Matching these soaring production rates during this period was a heightened public awareness of environmental concerns. These concerns left unexplained and under-addressed have created a significant growth in public involvement generating literally thousands of unfocused project comments for various regional NEPA efforts resulting in the delayed development of public and fee lands. The accelerating interest in CBM development coupled to the growth in public involvement has prompted the conceptualization of this project for the development of a CBM Primer. The Primer is designed to serve as a summary document, which introduces and encapsulates information pertinent to the development of Coal Bed Methane (CBM), including focused discussions of coal deposits, methane as a natural formed gas, split mineral estates, development techniques, operational issues, producing methods, applicable regulatory frameworks, land and resource management, mitigation measures, preparation of project plans, data availability, Indian Trust issues and relevant environmental technologies. An important aspect of gaining access to federal, state, tribal, or fee lands involves education of a broad array of stakeholders, including land and mineral owners, regulators, conservationists, tribal governments, special interest groups, and numerous others that could be impacted by the development of coal bed methane. Perhaps the most crucial aspect of successfully developing CBM resources is stakeholder education. Currently, an inconsistent picture of CBM exists. There is a significant lack of understanding on the parts of nearly all stakeholders, including industry, government, special interest groups, and land owners. It is envisioned the Primer would being used by a variety of

  10. COAL & POWER SYSTEMS

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    COAL & POWER SYSTEMS STRATEGIC & MULTI-YEAR PROGRAM PLANS U.S. DEPARTMENT OF ENERGY * OFFICE OF FOSSIL ENERGY GREENER, SOONER... THROUGH TECHNOLOGY INTRODUCTION .......... i-1 STRATEGIC PLAN ........ 1-1 PROGRAM PLANS Vision 21 .......................... 2-1 Central Power Systems ...... 3-1 Distributed Generation ..... 4-1 Fuels ................................ 5-1 Carbon Sequestration ....... 6-1 Advanced Research ........... 7-1 TABLE OF CONTENTS STRATEGIC & MULTI-YEAR PROGRAM

  11. Coal liquefaction and hydrogenation

    DOE Patents [OSTI]

    Schindler, Harvey D.

    1985-01-01

    The coal liquefaction process disclosed uses three stages. The first stage is a liquefaction. The second and third stages are hydrogenation stages at different temperatures and in parallel or in series. One stage is within 650.degree.-795.degree. F. and optimizes solvent production. The other stage is within 800.degree.-840.degree. F. and optimizes the C.sub.5 -850.degree. F. product.

  12. Exploration for deep coal

    SciTech Connect (OSTI)

    2008-12-15

    The most important factor in safe mining is the quality of the roof. The article explains how the Rosebud Mining Co. conducts drilling and exploration in 11 deep coal mine throughout Pennsylvania and Ohio. Rosebud uses two Atlas Copco CS10 core drilling rigs mounted on 4-wheel drive trucks. The article first appeared in Atlas Copco's in-house magazine, Deep Hole Driller. 3 photos.

  13. Coal Ash Corrosion Resistant Materials Testing

    SciTech Connect (OSTI)

    D. K. McDonald; P. L. Daniel; D. J. DeVault

    2003-08-31

    In April 1999, three identical superheater test sections were installed into the Niles Unit No.1 for the purpose of testing and ranking the coal ash corrosion resistance of candidate superheater alloys. The Niles boiler burns high sulfur coal (3% to 3.5%) that has a reasonably high alkali content, thus the constituents necessary for coal ash corrosion are present in the ash. The test sections were controlled to operate with an average surface metal temperature from approximately 1060 F to 1210 F which was well within the temperature range over which coal ash corrosion occurs. Thus, this combination of aggressive environment and high temperature was appropriate for testing the performance of candidate corrosion-resistant tube materials. Analyses of the deposit and scale confirmed that the aggressive alkali-iron-trisulfate constituent was present at the metal surface and active in tube metal wastage. The test sections were constructed so that the response of twelve different candidate tube and/or coating materials could be studied. The plan was to remove and evaluate one of the three test sections at time intervals of 1 year, 3 years, and 5 years. This would permit an assessment of performance of the candidate materials as a function of time. This report provides the results of the evaluation of Test Section C, including the samples that remained in the Test Section for the full exposure period as well as those that were removed early. The analysis of Test Section C followed much the same protocol that was employed in the assessment of Test Section A. Again, the focus was on determining and documenting the relative corrosion rates of the candidate materials. The detailed results of the investigation are included in this report as a series of twelve appendices. Each appendix is devoted to the performance of one of the candidate alloys. The table below summarizes metal loss rate for the worst case sample of each of the candidate materials for both Test Sections A and C

  14. Pulmonary retention of coal dusts

    SciTech Connect (OSTI)

    Morrow, P.E.; Gibb, F.R.; Beiter, H.; Amato, F.; Yuile, C.; Kilpper, R.W.

    1980-01-01

    The principal objectives of this study were: to determine, quantitatively, coal dust retention times in the dog lung; to test the appropriateness of a pulmonary retention model which incorporates first order rate coefficients obtained from in vitro and in vivo experiments on neutron-activated coal; to acquire a temporal description of the pulmonary disposition of the retained coal dust, and to compare the behavior of two different Pennsylvania coals in the foregoing regards. The principal findings include: retention half-times for both coals of approximately 2 years following single, hour-long exposures; a vivid association of the retained coal dust with the pulmonic lymphatics; and a general validation of the retention model.

  15. Environmental development plan: coal liquefaction

    SciTech Connect (OSTI)

    Not Available

    1980-08-01

    This Environmental Development plan (EDP) examines environmental concerns that are being evaluated for the technologies in DOE's Coal Liquefaction Program. It identifies the actions that are planned or underway to resolve these concerns while the technologies are being developed. Research is scheduled on the evaluation and mitigation of potential environmental impacts. This EDP updates the FY 1977 Coal Liquefaction Program EDP. Chapter II describes the DOE Coal Liquefaction Program and focuses on the Solvent Refined Coal (SRC), H-Coal, and Exxon donor solvent (EDS) processes because of their relatively advanced R and D stages. The major unresolved environmental concerns associated with the coal liquefaction subactivities and projects are summarized. The concerns were identified in the 1977 EDP's and research was scheduled to lead to the resolution of the concerns. Much of this research is currently underway. The status of ongoing and planned research is shown in Table 4-1.

  16. Iron catalyzed coal liquefaction process

    DOE Patents [OSTI]

    Garg, Diwakar; Givens, Edwin N.

    1983-01-01

    A process is described for the solvent refining of coal into a gas product, a liquid product and a normally solid dissolved product. Particulate coal and a unique co-catalyst system are suspended in a coal solvent and processed in a coal liquefaction reactor, preferably an ebullated bed reactor. The co-catalyst system comprises a combination of a stoichiometric excess of iron oxide and pyrite which reduce predominantly to active iron sulfide catalysts in the reaction zone. This catalyst system results in increased catalytic activity with attendant improved coal conversion and enhanced oil product distribution as well as reduced sulfide effluent. Iron oxide is used in a stoichiometric excess of that required to react with sulfur indigenous to the feed coal and that produced during reduction of the pyrite catalyst to iron sulfide.

  17. Zero emission coal

    SciTech Connect (OSTI)

    Ziock, H.; Lackner, K.

    2000-08-01

    We discuss a novel, emission-free process for producing hydrogen or electricity from coal. Even though we focus on coal, the basic design is compatible with any carbonaceous fuel. The process uses cyclical carbonation of calcium oxide to promote the production of hydrogen from carbon and water. The carbonation of the calcium oxide removes carbon dioxide from the reaction products and provides the additional energy necessary to complete hydrogen production without additional combustion of carbon. The calcination of the resulting calcium carbonate is accomplished using the high temperature waste heat from solid oxide fuel cells (SOFC), which generate electricity from hydrogen fuel. Converting waste heat back to useful chemical energy allows the process to achieve very high conversion efficiency from fuel energy to electrical energy. As the process is essentially closed-loop, the process is able to achieve zero emissions if the concentrated exhaust stream of CO{sub 2} is sequestered. Carbon dioxide disposal is accomplished by the production of magnesium carbonate from ultramafic rock. The end products of the sequestration process are stable naturally occurring minerals. Sufficient rich ultramafic deposits exist to easily handle all the world's coal.

  18. ,"Arkansas Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Associated-Dissolved Natural 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 Associated-Dissolved Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release

  19. ,"Arkansas Natural Gas Price Sold to Electric Power Consumers (Dollars per Thousand Cubic Feet)"

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

    Price Sold to Electric Power Consumers (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 Price Sold to Electric Power Consumers (Dollars per Thousand Cubic Feet)",1,"Monthly","6/2016" ,"Release Date:","8/31/2016" ,"Next Release

  20. ,"Arkansas Nonassociated Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)"

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

    Nonassociated Natural 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 Nonassociated Natural Gas, Wet After Lease Separation, Proved Reserves (Billion Cubic Feet)",1,"Annual",2014 ,"Release Date:","11/19/2015"