Results 131 to 140 of about 714 (185)

Underground coal gasification problems

Solid Fuel Chemistry, 2009
In the 4th UCG International conference which was held in February 2009 more than 20 reports on various UCG problems were presented. Australia, Canada, the United States, the Republic of South Africa, India, China and others are among the countries that actively participate in testing of the capabilities of UCG, evaluating of the resource base, and ...
E. V. Kreinin, A. Yu. Zorya
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Underground Coal Gasification and Combustion

2018
Underground Coal Gasification (UCG) is carried out in unmined coal seams, using wells drilled from the surface and converting coal into synthesis gas. The gas can be used for power generation and synthesis of automotive fuels, fertilizers and other products.
Blinderman, Michael S., Klimenko, Alexander Y.   +1 more
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Status of Underground Coal Gasification

Mineral Processing and Extractive Metallurgy Review, 1985
Underground coal gasification appears to be one of the most attractive routes for synfuels from coal because the process can produce methanol and substitute natural gas at prices competitive with existing energy sources. The technical feasibility of underground coal gasification has been well established by small scale field tests. Cost estimates based
D. R. STEPHENS, R. W. HILL, I. Y. BORG
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An Appraisal of Underground Coal Gasification

Proceedings of Fall Meeting of the Society of Petroleum Engineers of AIME, 1973
This paper was prepared for the 48th Annual Fall Meeting of the Society of Petroleum Engineers of AIME, to be held in Las Vegas, Nev., Sept. 30-Oct. 3, 1973. Permission to copy is restricted to an abstract of not more than 300 words. Illustrations may not be copied.
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Underground Coal Gasification Research

Journal of Energy Resources Technology, 1983
Recent successful field tests of underground coal gasification, UCG, have demonstrated the potential for UCG commercialization. This paper presents results of mathematical modeling and laboratory research studies which have been conducted to improve our understanding of the complex processes involved.
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Status of Underground Coal Gasification: ABSTRACT

AAPG Bulletin, 1985
ABSTRACT Underground coal gasification appears to be one of the most attractive routes for synfuels from coal because the process can produce methanol and substitute natural gas at prices competitive with existing energy sources. The technical feasibility of underground coal gasification has been well established by small-scale field ...
D. R. Stephens, R. W. Hill, I. Y. Borg*
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Underground coal gasification: a neglected option

International Journal of Environmental Studies, 2007
The energy sector is crucial to development. Coal is the prime energy resource in the foreseeable future. There is urgent need to develop alternative energy sources, which are cleaner and able to meet the demand and supply gap of energy for development in an environmentally sustainable manner. Underground coal gasification is a neglected option.
Mrinal K. Ghose, Biswajit Paul
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Underground Coal Gasification

Science, 1974
D R, Stephens, A D, Pasternak, A, Maimoni   +2 more
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Underground coal gasification: issues in commercialisation

Proceedings of the Institution of Civil Engineers - Energy, 2014
Back in 2007, it was expected that commercial gas production from underground coal gasification (UCG) technology would be in progress within the following 5 years. This has not occurred, particularly in Australia, where at the time three commercial projects were being aggressively pursued.
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Commercial development of underground coal gasification

Proceedings of the Institution of Civil Engineers - Energy, 2007
Underground coal gasification (UCG) is a process by which coal seams at depths uneconomic for open pit mining can be converted, using drillhole access, to a gas suitable for use as a fuel for power generation or as a chemical feedstock. Its application draws on a wide range of engineering and related disciplines including chemistry, geology ...
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