ZHAO Zhi- gen;TANG Xiu- yi (Huainan Institute of Technology;

• 1:Huainan
• 2:2 32 0 0 1
• 3:China)

Abstract：

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.

Key Words： coal;low- tem perature nitrogen adsorption method;micropore in coal;absorption

Abstract:

Keywords:

Foundation: 煤炭科学基金资助项目 (94地 10 714)

Author: ZHAO Zhi- gen;TANG Xiu- yi (Huainan Institute of Technology;

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