Results 121 to 130 of about 4,442 (238)

Coal liquefaction process research quarterly report, October-December 1979

, 1980
This quarterly report summarizes the activities of Sandia's continuing program in coal liquefaction process research. The overall objectives are to: (1) provide a fundamental understanding of the chemistry of coal liquefaction; (2) determine the role of ...
Granoff, B., Thomas, M.G., Stohl, F.V., Curlee, R.M., Bickel, T.C.   +4 more
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Analysis of Seepage Failure and Fluidization Mechanisms in Gas-Containing Tectonic Coal Outbursts

Applied Sciences
This study investigates the mechanisms of gas-containing tectonic coal outbursts by modeling tectonic coal and gas as analogous to soil and pore water.
Yan Xie, Feng Bi, Deyi Gao
doaj   +1 more source

Coal liquefaction. Quarterly report, January--March 1977

, 1977
Current ERDA work in coal liquefaction is aimed at improved process configurations for both catalytic and non-catalytic processes to provide more attractive processing economics and lower capital investment.

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FINANCIAL ANALYSIS ON DEVELOPMENT OF COAL LIQUEFACTION PLANT IN INDONESIA USING BROWN COAL LIQUEFACTION (BCL) TECHNOLOGY

, 2017
Financial analysis of Mulia coal liquefaction plant has been conducted in the year 2002 and up dated in the year 2007. However, the increase of coal price, currently, has promoted coal companies to export their coal rather than to allocate it as raw ...
HUDA, MIFTAHUL, DAULAY, BUKIN, Agustina, Granit, Ningrum, NINING S.   +3 more
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Droplets Evaporation Characteristics of Diesel from Direct and Indirect Coal Liquefaction and Their Blends

Shanghai Jiaotong Daxue xuebao
To study the evaporation characteristics of diesel from direct coal liquefaction (DDCL), diesel from indirect coal liquefaction (DICL), and their blended fuel droplets at different ambient temperatures (500, 600 and 700 ℃), a droplet evaporation test ...
SHEN Yukun, WANG Jigang, QIAO Xinqi
doaj   +1 more source

Solvent Tailoring in Coal Liquefaction. Quarterly Report, July-September 1983

, 1983
A series of twenty-three aromatic compounds were ranked for their donor solvent efficacy for the dissolution of Western Kentucky No. 9/14 coal. The transfer of hydrogen from the solvent to the coal fragments, as measured by coal conversion, was examined ...
Williams, D. C., Guin, J. A., Tarrer, A. R., Curtis, C. W.   +3 more
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Preconversion processing of bituminous coals: New directions to improved direct catalytic coal liquefaction. [High temperature soaking coal in coal liquids prior to liquefaction]

, 1992
Soaking coal in coal liquids at 300-400[degrees]C (high-tenperature soaking) has been studied for coal dissolution prior to liquefaction in the previous task. Two high-volatile bituminous coals, Illinois No. 6 and Pittsburgh No. 8, were examined in three

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Comparative analysis of covalent bond cleavage and free radical behavior during the heating process in direct coal liquefaction of Naomaohu and Shangwan coals

Fuel Processing Technology
The cleavage of covalent bonds and the generation of radicals play a crucial role in product distribution during direct coal liquefaction (DCL). This paper systematically investigates the mechanisms of covalent bond cleavage and the behavior of free ...
Huina Xu, Xiaodong Zhou, Ning Zhen, Xuelong Yin, Ting Liu, Yakun Tang, Jingmei Liu, Lang Liu, Fengyun Ma   +8 more
doaj   +1 more source

Experience in feeding coal into a liquefaction process development unit

, 1977
A system for preparing coal slurry and feeding it into a high pressure liquefaction plant is described. The system was developed to provide supporting research and development for the Bureau of Mines coal liquefaction pilot plant.
Friedman, S., Mazzocco, N. J., Akhtar, S., Yavorsky, P. M.   +3 more
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Novel separation techniques in coal liquefaction processes

, 1985
In a recent evaluation of developments in coal liquefaction technology, the removal of inorganic constituents during coal liquefaction has proven to be difficult.
Sarkar, Sukumar
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