Results 221 to 230 of about 12,501 (249)

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
openaire   +2 more sources

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
openaire   +3 more sources

Economics of Underground Coal Gasification

1981
As with other coal utilisation processes, economics will be decisive in determining the degree of exploitation of a technically feasible operation. In the case of Underground Coal Gasification (UCG) there are several important economic questions: (1) How does UCG compare with other methods of exploiting coal resources?
J. Gibson, L. Grainger
openaire   +2 more sources

An Integrated Model for Underground Coal Gasification

SPE Annual Technical Conference and Exhibition, 1994
Abstract Underground coal gasification receives renewed interest in both Western and Eastern Europe because of the vast amounts of otherwise unminable coal deposits that occur on the European continent. A field test is currently being carried out in Spain. Other countries in Europe show interest in this method of utilizing
E.N.J. Biezen, Johannes Molenaar, Johannes Bruining   +2 more
openaire   +2 more sources

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.
openaire   +2 more sources

The Underground Gasification of Sub-Bituminous Coals

Proceedings of SPE Rocky Mountain Regional Meeting, 1974
This paper was prepared for the Rocky Mountain Regional Meeting of the Society of Petroleum Engineers of AIME, to be held in Billings, Mont., May 15–16, 1974. Permission to copy is restricted to an abstract of not more than 300 words. Illustrations may not be copied.
John F. Evers, James W. Jennings
openaire   +2 more sources

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 Kanti Ghose, Biswajit Paul
openaire   +2 more sources

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.
openaire   +2 more sources

Environmental concerns of underground coal gasification

Renewable and Sustainable Energy Reviews, 2014
Abstract Underground Coal Gasification is the conversion of solid Coal to gas in-situ by heating the coal and injecting oxidants air/oxygen to cause the gasification by partial combustion instead of complete combustion of coal. UCG is the promising technology having a lot of health, safety and environmental advantages over the conventional mining ...
Muhammad Shamim Bhatti, Muhammad Imran, Dileep Kumar, Naresh Kumar, Abdul Qayyum, Ahmad Saeed   +5 more
openaire   +2 more sources

Review of Underground Coal Gasification Technologies

2016 3rd International Conference on Green Technology and Sustainable Development (GTSD), 2016
In the wake of increasing challenges of high prices of oil and gas and uncertainties about political stability in many oil and gas producing countries, coal becomes more and more important in the coming years for its vast reserves and wide distribution all over the world.
Nguyen Thi Hoang Anh, Hoang Ngoc Dong, Nguyen Le Hong Son   +2 more
openaire   +2 more sources