Comparison of high-pressure CO<sub>2</sub> sorption isotherms on Eastern and Western US coals [electronic resource]

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Tác giả:

Ngôn ngữ: eng

Ký hiệu phân loại: 546.26 Physical chemistry of hydrogen

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, 2013

Mô tả vật lý: Medium: X : , digital, PDF file.

Bộ sưu tập: Metadata

ID: 268330

 Accurate estimation of carbon dioxide (CO<
 sub>
 2<
 /sub>
 ) sorption capacity of coal is important for planning the CO<
 sub>
 2<
 /sub>
  sequestration efforts. In this work, we investigated sorption and swelling behavior of several Eastern and Western US coal samples from the Central Appalachian Basin and from San Juan Basin. The CO<
 sub>
 2<
 /sub>
  sorption isotherms have been completed at 55�C for as received and dried samples. The role of mineral components in coal, the coal swelling, the effects of temperature and moisture, and the error propagation have been analyzed. Changes in void volume due to dewatering and other factors such as temporary caging of carbon dioxide molecules in coal matrix were identified among the main factors affecting accuracy of the carbon dioxide sorption isotherms. The (helium) void volume in the sample cells was measured before and after the sorption isotherm experiments and was used to build the volume-corrected data plots.
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