Initial Characteristics of Gas Desorption in High-Rank Soft and Hard Coals and the Causes of the Differences

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成果类型：

期刊论文

作者：

Wu, Kuan;Li, Shouyi;Zhang, Huijie;You, Bo;Ma, Heyi;...

通讯作者：

Wu, K

作者机构：

[Wu, Kuan; Li, Shouyi; Wang, Feifei] Hunan City Univ, Sch Civil Engn, Yiyang 413000, Peoples R China.

[Zhang, Huijie] China Coal Res Inst, Mine Safety Technol Branch, Beijing 100013, Peoples R China.

[Li, Bo; You, Bo; Chen, Yong] Hunan Univ Sci & Technol, Coll Resources Environm & Safety Engn, Xiangtan 411100, Peoples R China.

[Ma, Heyi] Hunan Coal Sci Res Inst Co Ltd, Changsha 410000, Peoples R China.

[Chen, Yong] China Coal Sci & Ind Grp Co LTD, Chongqing Res Inst, Chongqing 400037, Peoples R China.

通讯机构：

[Wu, K ] H

Hunan City Univ, Sch Civil Engn, Yiyang 413000, Peoples R China.

语种：

英文

期刊：

ACS OMEGA

ISSN：

2470-1343

年：

2025

卷：

期：

页码：

33208-33219

DOI：

10.1021/acsomega.5c03116

基金类别：

National Natural Science Foundation of China [52074107, 52274196, 52474215]; National Natural Science Foundation of China [2025JJ70386]; Hunan Province Natural Science Foundation Regional Joint Fund Project [S202511527003]; Undergraduate Innovation and Entrepreneurship Training Program of Hunan Province [2024JJ6110]; Hunan Provincial Natural Science Foundation [W2024B01]; State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Henan Polytechnic University

机构署名：

本校为第一且通讯机构

院系归属：

土木工程学院

摘要：

To study the initial characteristics of gas desorption in high-rank soft and hard coals, a purpose-built constant-temperature gas desorption device was used to conduct gas desorption experiments on three groups of collected high-rank soft and hard coal samples. The results show that the gas desorption index (K (1)) of drill cuttings from soft and hard coals follows a power function relationship with the adsorption equilibrium pressure. Under the same adsorption equilibrium pressure, the gas desorption index (K (1)) of drill cuttings from soft coal is 1.39-2.66 times that of hard coal. When the...

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Initial Characteristics of Gas Desorption in High-Rank Soft and Hard Coals and the Causes of the Differences

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