| 中梁山矿区煤的孔隙特征及其对吸附性的影响 |
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| 引用本文： | 胡广青,姜波,吴胡.中梁山矿区煤的孔隙特征及其对吸附性的影响[J].中国煤炭地质,2011(5):8-12. |
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| 作者姓名： | 胡广青 姜波 吴胡 |
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| 作者单位： | 中国矿业大学资源与地球科学学院,煤层气资源与成藏过程教育部重点实验室,江苏徐州221116 |
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| 摘 要： | 为了研究中梁山矿区煤的孔隙性、吸附性特征,选取8组煤样分别进行煤镜质组反射率测试、压汞实验和高压等温吸附实验分析。研究表明：（1）大孔和微孔对煤总孔容的控制明显,过渡孔和中孔影响小,微孔对煤比表面积的贡献最大;（2）煤中孔隙以开放孔为主,并具有相当数量的半封闭孔,孔隙连通性总体较好;（3）在中低煤级阶段,一般煤的孔隙度、孔容和比表面积均随变质程度的增大而减小;（4）煤的最大吸附量与总孔容、总比表面积呈正相关性。
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| 关 键 词： | 中梁山矿区 煤变质程度 孔隙性 吸附性 |
Pore Characteristics of Coal and Its Impact on Adsorptivity in Zhongliangshan Mining Area |
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| Hu Guangqing,Jiang Bo and Wu Hu.Pore Characteristics of Coal and Its Impact on Adsorptivity in Zhongliangshan Mining Area[J].Coal Geology of China,2011(5):8-12. |
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| Authors: | Hu Guangqing Jiang Bo and Wu Hu |
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| Institution: | 1.School of Resource and Earth Science,CUMT,Key Laboratory of CBM Resource and Reservoir Formation Course,Ministry of Education,Xuzhou,Jiangsu 221116;2.Hubei Bureau of Coal Geological Exploration,Wuhan,Hubei 430070) |
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| Abstract: | To study coal porosity and adsorptivity of coal in the Zhongliangshan mining area,a series of tests were carried out using 8 coal sample groups.These tests include： vitrinite reflectance test,mercury intrusion test and high-pressure adsorption isotherm test.The research shows：（1）Macropores and micropores play a leading role in total volume;transitional pore and mesopore has little effect on total volume;micropores play a leading role in total specific surface;（2）Coal contains a lot of open pore and some semi-enclosed pore,and the pore connectivity is good;（3）In the stage of mid-low ranks,generally the coal porosity,pore volume and specific surface decrease with increasing of metamorphism;（4）The maximum adsorption capacity of coal has positive correlation with total pore volume and total specific surface. |
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| Keywords: | Zhongliangshan mining area degree of coal metamorphism porosity adsorptivity |
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