Structure and composition characteristics of deformed high-rank coals in the south of Qinshui basin and their influence on CBM adsorption/desorption

doi:10.7523/j.issn.2095-6134.2014.01.015

Abstract

Abstract:

Based on maceral determination, R_o test, ultimate-proximate analysis, LND, TEM, and adsorption/desorption test, composition and adsorption/desorption characteristics of deformed high-rank coals in the south of Qinshui basin were systematically studied. Results show that, 1) macro-and micro-pore fractures of high-rank coals change with the deformation degree; 2) chemical compositions of deformed high-rank coals show remarkably differences; and 3) the adsorption/desorption of deformed high-rank coals shows intimate relations with the physical and chemical compositions.

Key words: deformed high-rank coal, structure, composition, adsorption/desorption, south Qinshui basin

CLC Number:

TD712

ZHANG Wenjing, JU Yiwen, KONG Xiangwen, HOU Quanlin, WEI Mingming, LI Xiaoshi, YU Liye. Structure and composition characteristics of deformed high-rank coals in the south of Qinshui basin and their influence on CBM adsorption/desorption[J]. , 2014, 31(1): 98-107.

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