Experimental analysis of the pore structure and fractal characteristics of different metamorphic coal based on mercury intrusion-nitrogen adsorption porosimetry

被引：158

作者：

Han, Weibo ^{[1
,2
,3
]}

Zhou, Gang ^{[1
,2
,3
,4
]}

Gao, Danhong ^{[1
,2
,3
]}

Zhang, Zhixue ^{[5
]}

Wei, Zunyi ^{[6
]}

Wang, Hetang ^{[7
]}

Yang, Houqin ^{[8
]}

机构：

[1] Shandong Univ Sci & Technol, Coll Min & Safety Engn, Qingdao 266590, Peoples R China

[2] Shandong Univ Sci & Technol, State Key Lab Min Disaster Prevent & Control Cofo, Qingdao 266590, Peoples R China

[3] Shandong Univ Sci & Technol, Minist Sci & Technol, Qingdao 266590, Peoples R China

[4] CSIRO, Energy Flagship, POB 883, Brisbane, Qld 4069, Australia

[5] Shandong Energy Feicheng Min Grp, Prod Technol Dept, Feicheng 271608, Peoples R China

[6] Shandong Energy Zaozhuang Min Grp, Environm Protect Technol Ctr, Zaozhuang 277899, Peoples R China

[7] China Univ Min & Technol, Sch Safety Engn, Xuzhou 221116, Jiangsu, Peoples R China

[8] Qiwu Coal Mine Shandong Energy Zaozhuang Min Grp, Weishan 277606, Peoples R China

来源：

POWDER TECHNOLOGY | 2020年 / 362卷 / 362期

基金：

中国国家自然科学基金;

关键词：

Mercury intrusion porosimetry; N-2; adsorption; Pore structure; Pore size distribution; Fractal dimensions; DUST SUPPRESSION; RESPIRABLE DUST; CH4; ADSORPTION; DEFORMED COALS; GAS-ADSORPTION; N-2; SHALE; DIMENSION; AGGLOMERATION; MICROSCOPY;

D O I：

10.1016/j.powtec.2019.11.092

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The pore structure of different metamorphic coal was analyzed by mercury intrusion porosimetry and N-2 adsorption. Combined with the fractal dimension models of the Frenkel-Halsey-Hill and Menger, the pore size range of the experiment was spliced reasonably. A new pore classification scheme is put forward by fractal dimensions, revealing the pore structure and fractal characteristics of different metamorphic coal. The results suggest that pores exhibit piecewise fractal characteristics. A new pore classification scheme is put forward by piecewise fractal dimensions: I(0-2.0 nm, corresponding to D-1); II (2.0-50 nm, corresponding to D-2); III (50-2000 nm, corresponding to D-3): IV (2000-20,000 nm, corresponding to D-4); V (>20,000 nm, corresponding to D-5). It is not inconsistent with the international union of pure and applied chemistry for pore classification, which shows that the new pore classification scheme is reliable. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：386 / 398

页数：13

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