Adsorption Characteristics of Coals Pyrolyzed at Slow Heating Rates [electronic resource]

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Tác giả:

Ngôn ngữ: eng

Ký hiệu phân loại: 546 Inorganic chemistry

Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Office of the Assistant Secretary of Energy for Fossil Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2017

Mô tả vật lý: Size: p. 1803-1810 : , digital, PDF file.

Bộ sưu tập: Metadata

ID: 268082

 Underground coal pyrolysis is a process similar to in situ oil shale production wherein heat is applied to deep coal formations to produce light hydrocarbons. Like enhanced coal bed methane, the injection of CO<
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  post thermal treatment can improve hydrocarbon recovery and serves as a means of carbon sequestration. Little information exists pertaining to coals pyrolyzed to temperatures expected with this process. This work examines the development of meso- and micropores and their influence on methane and carbon dioxide adsorption and permeability on a thermally treated Utah bituminous coal. Residual tars were found to affect the pore size distributions in pyrolyzed coals. Generally, with increasing treatment temperature, there are more meso- and micropores. A correlation was established between the prevalence of mesopores in pyrolyzed coals and adsorption and, to a lesser extent, permeability. Finally, the treatment temperature of this particular coal is directly related to the amount of CO<
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  said coal can store and how the plume of injected CO<
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  moves through the formation.
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