Study on pore structure and adsorption characteristics of soft and hard coal with different metamorphic degree

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成果类型：

期刊论文

作者：

Wang, Qiao;Luo, Qiong;Chen, Yong;Wang, Zhaofeng;Lu, Yi;...

通讯作者：

Chen, Y

作者机构：

[Wang, Qiao; Lu, Yi; Ma, Hongyu; Chen, Yong; Luo, Qiong; Luo, Yafei] Hunan Univ Sci & Technol, Sch Resource & Environm & Safety Engn, 2 Taoyuan Rd, Xiangtan 411201, Hunan, Peoples R China.

[Wang, Zhaofeng; Wang, Qiao] Henan Polytech Univ, State Key Lab Cultivat Base Gas Geol & Gas Control, Jiaozuo, Peoples R China.

[Wang, Qiao] Anhui Univ Sci & Technol, Engn Technol Res Ctr Safe & Efficient Coal Min, Huainan, Peoples R China.

[Wu, Kuan] Hunan City Univ, Coll Civil Engn, Yiyang, Peoples R China.

通讯机构：

[Chen, Y ] H

Hunan Univ Sci & Technol, Sch Resource & Environm & Safety Engn, 2 Taoyuan Rd, Xiangtan 411201, Hunan, Peoples R China.

语种：

英文

关键词：

Mercury injection method;low-temperature nitrogen adsorption method;methane adsorption;soft/hard coal;pore structure;fractal dimension

期刊：

International Journal of Coal Preparation and Utilization

ISSN：

1939-2699

年：

2025

DOI：

10.1080/19392699.2025.2507700

基金类别：

State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Henan Polytechnic University [W2024B01]; Engineering Technology Research Centre for Safe and Efficient Coal Mining, Anhui University of Science and Technology [SECM2402]; Scientific research project of Hunan Provincial Department of Education [24B0443]; National Natural Science Youth Foundation of China [52304214]

机构署名：

本校为其他机构

院系归属：

土木工程学院

摘要：

Gas adsorption characteristics of coal seams are primarily controlled by the pore structure of coal. To clarify the pore structure and adsorption characteristics of soft and hard coal, this paper experimentally studied Jiulishan anthracite, Shanxi Xinyuan lean coal, and Panbei gas-fat coal. Combined with FHH, Langmuir, and Polanyi theories, pore structures and adsorption properties of soft/hard coals with varying metamorphism were analyzed. Results show that hard coal exhibited more developed macropores but fewer micro/mesopores than soft coal....

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Study on pore structure and adsorption characteristics of soft and hard coal with different metamorphic degree

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