赵志根,唐修义
ZHAO Zhi- gen;TANG Xiu- yi (Huainan Institute of Technology;

• 1:淮南工业学院资环系
• 2:淮南工业学院资环系 安徽淮南232001
• 3:安徽淮南232001

摘要(Abstract)：

用低温氮吸附法测试了 2 6个煤样的微孔隙 ,并对结果作了分析 ,得出以下认识 :低温氮吸附法测出的最小孔的直径只有 0 .6nm,有利于更深入地了解煤的微孔隙特征 ;超微孔比微小孔所占比表面积大得多 ,占主要地位 ;煤层中吸收状态的甲烷应引起重视 ,游离、吸附状态的甲烷比通常认为的要少
L ow- temperature nitrogen adsorption method(L INAM) is used to detect the micropores of2 6 coal sam ples,and the experimental results are analysed in this paper.The detectable minimal pore by L INAM is 0 .6 nm in diam eter,which benefits the research on micropore in coal.The pore between0 .6 and10 nm in diameter is with more specific surface area than the pore between 10 and 10 0 nm in diameter,so the former plays a more important role than the latter.More attention should be paid to the absorbed methane,and the contents of free methane and adsorbed methane are fewer than the contents usually understood.

关键词(KeyWords)： 煤;低温氮吸附法;微孔隙;吸收
coal;low- tem perature nitrogen adsorption method;micropore in coal;absorption

Abstract:

Keywords:

基金项目(Foundation): 煤炭科学基金资助项目 (94地 10 714)

作者(Authors): 赵志根,唐修义
ZHAO Zhi- gen;TANG Xiu- yi (Huainan Institute of Technology;

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