Study on methane adsorption characteristics of anthracite in deep coal seam
In order to study the deep coal bed methane adsorption characteristics of anthracite, using high temperature and high pressure of coal adsorption test to simulate the deep coal seam environment, we measured soft and hard anthracite coal at different temperatures(40 ℃, 70 ℃, 110 ℃) of the gas adsorpt...
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Published in | Mei kuang an quan Vol. 52; no. 6; pp. 28 - 33 |
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Main Authors | , , , , |
Format | Journal Article |
Language | Chinese |
Published |
Editorial Office of Safety in Coal Mines
01.06.2021
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Subjects | |
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Abstract | In order to study the deep coal bed methane adsorption characteristics of anthracite, using high temperature and high pressure of coal adsorption test to simulate the deep coal seam environment, we measured soft and hard anthracite coal at different temperatures(40 ℃, 70 ℃, 110 ℃) of the gas adsorption constant, calculated the adsorption potential characteristic curve of the soft and hard coal under different conditions by adsorption potential theory, and analyzed methane adsorption characteristics of the deep coal seam under high temperature and high pressure; we tested the pore structure parameters of soft and hard anthracite before and after the high temperature and high pressure adsorption test based on mercury injection method, and studied the influence of the change of pore structures of soft and hard anthracite in the deep coal seam at different temperature on methane adsorption. The results show that the structure of porous of soft anthracite is more developed than that of hard coal. The adsorption ch |
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AbstractList | In order to study the deep coal bed methane adsorption characteristics of anthracite, using high temperature and high pressure of coal adsorption test to simulate the deep coal seam environment, we measured soft and hard anthracite coal at different temperatures(40 ℃, 70 ℃, 110 ℃) of the gas adsorption constant, calculated the adsorption potential characteristic curve of the soft and hard coal under different conditions by adsorption potential theory, and analyzed methane adsorption characteristics of the deep coal seam under high temperature and high pressure; we tested the pore structure parameters of soft and hard anthracite before and after the high temperature and high pressure adsorption test based on mercury injection method, and studied the influence of the change of pore structures of soft and hard anthracite in the deep coal seam at different temperature on methane adsorption. The results show that the structure of porous of soft anthracite is more developed than that of hard coal. The adsorption ch |
Author | DAI Juhua WANG Zhaofeng WANG Qiao ZHANG Kangjia WANG Lingling |
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SubjectTerms | adsorption anthracite coal deep coal seam mercury intrusion method pore structure |
Title | Study on methane adsorption characteristics of anthracite in deep coal seam |
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