Microstructure and its influence on CH4 adsorption behavior of deep coal

doi:10.1088/1674-1056/23/2/028201

中国物理B ›› 2014, Vol. 23 ›› Issue (2): 28201-028201.doi: 10.1088/1674-1056/23/2/028201

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇下一篇

Microstructure and its influence on CH₄ adsorption behavior of deep coal

冯艳艳, 江成发, 刘代俊, 储伟

Department of Chemical Engineering, Sichuan University, Chengdu 610065, China

收稿日期:2013-03-27 修回日期:2013-05-23 出版日期:2013-12-12 发布日期:2013-12-12
基金资助:
Project supported by the National Basic Research Program of China (Grant No. 2011CB201202).

Microstructure and its influence on CH₄ adsorption behavior of deep coal

Feng Yan-Yan (冯艳艳), Jiang Cheng-Fa (江成发), Liu Dai-Jun (刘代俊), Chu Wei (储伟)

Department of Chemical Engineering, Sichuan University, Chengdu 610065, China

Received:2013-03-27 Revised:2013-05-23 Online:2013-12-12 Published:2013-12-12
Contact: Liu Dai-Jun, Chu Wei E-mail:liudj721@163.com;chuwei1965scu@163.com
About author:82.80.Dx; 68.43.-h
Supported by:
Project supported by the National Basic Research Program of China (Grant No. 2011CB201202).

摘要/Abstract

摘要： In this paper we investigate the influence of microstructure on the CH₄ adsorption behavior of deep coal. The coal microstructure is characterized by N₂ adsorption at 77 K, scanning electron microscopy (SEM), Raman spectroscopy, and Fourier transform infrared spectroscopy (FT-IR). The CH₄ adsorptions are measured at 298 K at pressures up to 5.0 MPa by the the volumetric method and fitted by the Langmuir model. The results show that the Langmuir model fits well with the experimental data, and there is a positive correlation with surface area, pore volume, I_D/I_G, and CH₄ adsorption capacity. The burial depth also affects the methane adsorption capacity of the samples.

关键词: CH₄ adsorption, deep coal, pore structure, surface morphology

Abstract: In this paper we investigate the influence of microstructure on the CH₄ adsorption behavior of deep coal. The coal microstructure is characterized by N₂ adsorption at 77 K, scanning electron microscopy (SEM), Raman spectroscopy, and Fourier transform infrared spectroscopy (FT-IR). The CH₄ adsorptions are measured at 298 K at pressures up to 5.0 MPa by the the volumetric method and fitted by the Langmuir model. The results show that the Langmuir model fits well with the experimental data, and there is a positive correlation with surface area, pore volume, I_D/I_G, and CH₄ adsorption capacity. The burial depth also affects the methane adsorption capacity of the samples.

Key words: CH₄ adsorption, deep coal, pore structure, surface morphology

中图分类号: (Analytical methods involving electronic spectroscopy)

82.80.Dx

68.43.-h (Chemisorption/physisorption: adsorbates on surfaces)

冯艳艳, 江成发, 刘代俊, 储伟. Microstructure and its influence on CH₄ adsorption behavior of deep coal[J]. 中国物理B, 2014, 23(2): 28201-028201.

Feng Yan-Yan (冯艳艳), Jiang Cheng-Fa (江成发), Liu Dai-Jun (刘代俊), Chu Wei (储伟). Microstructure and its influence on CH₄ adsorption behavior of deep coal[J]. Chin. Phys. B, 2014, 23(2): 28201-028201.

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Microstructure and its influence on CH₄ adsorption behavior of deep coal

Microstructure and its influence on CH₄ adsorption behavior of deep coal

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