煤的吸附特征及煤中孔隙的分布规律  

Adsorption Characteristic of Coal and Distribution Rules of Pore of Coal

作　　者：张占存[1] 

机构地区：[1]煤炭科学研究总院抚顺分院,辽宁抚顺113122

出　　处：《煤矿安全》2006年第9期1-3,共3页Safety in Coal Mines

基　　金：煤炭科学研究总院青年创新基金资助项目(2005QN14)

摘　　要：采用低温氮吸附法实测煤的吸附等温线,对煤的吸附特征进行了总结,并分析了其形成原因;通过实测煤样的累计孔容及孔径分布,指出煤中孔是从小孔(分子级孔)至大孔的连续、完整的孔系统,而<50A°的微孔在其中占有主导地位。Mensurated the adsorption isotherm of coal by low- temperature, nitrogen adsorption method, the paper summarizes the adsorption characteristic of coal and analyzes its reason which comes into being. Based on determining the accumulative pore volume and the aperture distribution, it is pointed out that the apertures of coal are continuous and complete aperture gap system which comprised from micropore（ molecule grade） to macropore in coal and the micropores which the aperture are less than 50 Aare possessed of predominant position.

关 键 词：吸附 孔隙结构 孔容 

分 类 号：TD712[矿业工程—矿井通风与安全]