Results 241 to 250 of about 56,023 (314)

A Method for Predicting Coal-Mine Methane Outburst Volumes and Detecting Anomalies Based on a Fusion Model of Second-Order Decomposition and ETO-TSMixer. [PDF]

Sensors (Basel)
Zheng Q, Li C, Yang B, Yan Z, Qin Z.
europepmc   +1 more source

Experimental Study on the Diffusion Law of Coal-Based Solid Waste Slurry with Grouting Filling in the Gangue Voids of the Caving Zone. [PDF]

ACS Omega
Xiang H, Zhen W, Ke Y, Xiang Y, Shuxin H, Yihao S, Bin L.   +6 more
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Computer modelling of underground coal gasification

, 1985
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Underground coal gasification

AIChE Journal, 1978
AbstractUnderground coal gasification (UCG) is a method whereby the mining and conversion of coal are accomplished in a single step. Many field tests of UCG have been operated worldwide since the 1930's with varying degrees of success; based on this experience (especially in the USSR and United States), a field design which is applicable to a wide ...
D. W. Gregg, T. F. Edgar
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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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Effects of the Steam-To-Oxygen Ratio and the Equivalence Ratio on Underground Coal Gasification

Combustion Science and Technology, 2023
Underground coal gasification is a complex physico-chemical process. UCG thermodynamic equilibrium model was established and validated, and the effects of the steam-to-oxygen ratio (RH2O/O2) and the equivalence ratio (ER) on the gasification temperature ...
H. Fang, Sen Li, T. Ge, Yinan Liu, Yueyu Yu, Yuewu Liu, D. Liu, Jiu Ding, Longlong Li   +8 more
semanticscholar   +1 more source

Surface Subsidence Response to Safety Pillar Width Between Reactor Cavities in the Underground Gasification of Thin Coal Seams

Sustainability
Underground coal gasification (UCG) is a clean and automated coal technological process that has great potential. Environmental hazards such as the risk of ground surface subsidence, flooding, and water pollution are among the problems that restrict the ...
Ivan Sakhno, S. Sakhno, O. Vovna
semanticscholar   +1 more source

Experimental Study and Application of Underground Gasification Characteristics of Long Flame Coal in Xinjiang Oilfield

Journal of Physics: Conference Series
Underground coal gasification technology is an advanced technology for coal gasification directly in the coal seam. By injecting oxidants, the combustion reaction inside the coal seam is triggered to generate syngas.
Ya Li, Xiang Liu, Qin Na, Jicheng Tao, Dongmei Xu, Chao Chen, Shenghao Guo, Xingyu Yang, Jizhou Zhang, Yiniang Yan, Guanxiang Zhou   +10 more
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Aspects of co-utilization of solid waste and coal through underground gasification

IOP Conference Series: Earth and Environment
The Well-Based Underground Coal Gasification (WUCG) technology is developed to enable the co-gasification of coal with industrial and household waste directly within coal seams, allowing for efficient disposal of thermally treated solid residues in the ...
R. Dychkovskyi, V. Falshtynskyi, P. Saik, V. Lozynskyi   +3 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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