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[1]梁冰,贾立锋,孙维吉,等.粒状煤和块状煤等温吸附CH4试验研[J].中国安全生产科学技术,2017,13(3):53-57.[doi:10.11731/j.issn.1673-193x.2017.03.008]
　LIANG Bing,JIA Lifeng,SUN Weiji,et al.Experimental study on isothermal adsorption of methane by granular coal and lump coal[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(3):53-57.[doi:10.11731/j.issn.1673-193x.2017.03.008]
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粒状煤和块状煤等温吸附CH4试验研
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
13
期数:
2017年3期
页码:
53-57
栏目:
现代职业安全卫生管理与技术
出版日期:
2017-03-31

文章信息/Info

Title:
Experimental study on isothermal adsorption of methane by granular coal and lump coal
文章编号:
1673-193X(2017)-03-0053-05
作者:
梁冰1; 贾立锋2; 孙维吉1; 董擎1
1. 辽宁工程技术大学 力学与工程学院，辽宁 阜新 123000；2. 辽宁工程技术大学 矿业学院，辽宁 阜新 123000
Author(s):
LIANG Bing1;  JIA Lifeng2;  SUN Weiji1;  DONG Qing
1. School of Mechanics and Engineering, Liaoning Technical University, Fuxin Liaoning 123000, China;2. School of Mining, Liaoning Technical University, Fuxin Liaoning 123000, China
关键词:
粒状煤;  块状煤;  吸附特性;  变形特性;  瓦斯吸附
Keywords:
granular coal;  lump coal;  adsorption characteristics;  deformation characteristics;  methane adsorption
分类号:
X936;TD712
DOI:
10.11731/j.issn.1673-193x.2017.03.008
文献标志码:
A
摘要:
为探究不同尺寸煤样吸附瓦斯特性的差异，以漳村矿3#煤为研究对象，利用自主研制的多功能煤吸附/解吸瓦斯参数测定试验装置，开展粒状煤和块状煤的等温吸附试验，测定不同吸附压力下的吸附量和变形量。试验结果表明：在相同的吸附平衡压力下，吸附量随煤样粒径的增大而减小；粒状煤吸附瓦斯的能力大于块状煤，原因是粒状煤的有效比表面比块状煤大，增加的微孔吸附瓦斯使得煤吸附瓦斯量增加。块状煤的变形量随吸附平衡压力而增大，但增加量逐渐减小。经讨论分析可知：煤体吸附膨胀变形是煤基质吸附膨胀和气体压力压缩共同作用的结果；粒状煤测定的吸附常数应用到煤层数值模拟中会引起一定的误差。
Abstract:
To explore the difference in methane adsorption characteristics of coal samples with different sizes, taking 3# coal of Zhangcun coal mine as the research object, the isothermal adsorption experiments of granular coal and lump coal were carried out by using the self-developed multifunctional measurement test device on gas adsorption/desorption parameters of coal, and the adsorption quantity and deformation amount under different adsorption pressures were measured. The results showed that the adsorption quantity decreases with the increasing particle size of coal sample under the same adsorption equilibrium pressure. The gas adsorption capacity of granular coal is larger than that of lump coal, which is due to the larger effective specific surface area of granular coal than that of lump coal, and the increasing micropore gas adsorption make the gas adsorption quantity of coal increase. The deformation amount of lump coal increases with the increasing adsorption equilibrium pressure, but the increment decreases gradually. The adsorption swelling and deformation of coal body is the results of combined effect by the adsorption swelling of coal matrix and gas pressure compression. The application of measured adsorption constants of granular coal in the numerical simulation of coal seam will cause a certain error.

参考文献/References:

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备注/Memo

备注/Memo:
国家自然科学基金青年科学基金项目(51304111)； 国家重点发展计划项目（2016YFC0600704, 2016YFC0801404）
更新日期/Last Update: 2017-03-30