钟玲文, 张慧, 员争荣, 雷崇利. 煤的比表面积孔体积及其对煤吸附能力的影响[J]. 煤田地质与勘探, 2002, 30(3): 26-29.
引用本文: 钟玲文, 张慧, 员争荣, 雷崇利. 煤的比表面积孔体积及其对煤吸附能力的影响[J]. 煤田地质与勘探, 2002, 30(3): 26-29.
shu
ZHONG Ling-wen, ZHANG Hui, YUAN Zheng-rong, LEI Chong-li. Influence of specific pore area and pore volume of coal on adsorption capacity[J]. COAL GEOLOGY & EXPLORATION, 2002, 30(3): 26-29.
Citation: ZHONG Ling-wen, ZHANG Hui, YUAN Zheng-rong, LEI Chong-li. Influence of specific pore area and pore volume of coal on adsorption capacity[J]. COAL GEOLOGY & EXPLORATION, 2002, 30(3): 26-29.
shu

煤的比表面积孔体积及其对煤吸附能力的影响

Influence of specific pore area and pore volume of coal on adsorption capacity

    摘要
  • 摘要: 在液氮温度下,通过测试煤样在气体饱和蒸气压力范围内对N2的吸附过程及吸附量,用BET和BJH理论模型计算出煤的孔体积和孔表面积。同时,对煤样进行等温吸附CH4试验。根据试验结果,探讨了煤的孔体积、孔比表面积及与孔类型的关系,及其对煤吸附能力的影响,即煤对CH4的吸附能力与总孔体积、总孔比表面积、微孔比表面积呈正相关。

     

    Abstract: At the temperature of liquid nitrogen the N2 adsorption process and adsorptive volume of coal samples are measured under the gas saturated vapour-pressure.Using BET and BJH theoretical models the pore volume and area of coal are calculated.The test of CH4 isothermal adsorption of coal samples is also calculated.Based on results it is discussed that the relationship among pore volume,total specific surface and pore type,as well as the influence on coal adsorptive capacity.

     

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