| 低温氮吸附法测试煤中微孔隙及其意义 |
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| 引用本文： | 赵志根,唐修义.低温氮吸附法测试煤中微孔隙及其意义[J].煤田地质与勘探,2001,29(5):28-30. |
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| 作者姓名： | 赵志根 唐修义 |
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| 作者单位： | 淮南工业学院资环系, 安徽 淮南 232001 |
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| 基金项目： | 煤炭科学基金资助项目 (94地 10 714) |
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| 摘 要： | 用低温氮吸附法测试了26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。
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| 关 键 词： | 煤 低温氮吸附法 微孔隙 吸收 |
| 文章编号： | 1001-1986(2001)05-0028-02 |
| 收稿时间： | 2000-08-28 |
| 修稿时间： | 2000年8月28日 |
Study of micropore in coal by low- temperature nitrogen adsorption method and its significance |
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| ZHAO Zhi- gen,TANG Xiu- yi.Study of micropore in coal by low- temperature nitrogen adsorption method and its significance[J].Coal Geology & Exploration,2001,29(5):28-30. |
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| Authors: | ZHAO Zhi- gen TANG Xiu- yi |
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| Institution: | Huainan Institute of Technology, Huainan, 232001, China |
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| 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. |
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| Keywords: | coal low- tem perature nitrogen adsorption method micropore in coal absorption |
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