| 对几种活性炭比表面和孔径分布的测试 |
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| 引用本文： | 李身扬,于淑华,张建春.对几种活性炭比表面和孔径分布的测试[J].石油化工,1985(1). |
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| 作者姓名： | 李身扬 于淑华 张建春 |
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| 作者单位： | 北京化工学院化学工程系，北京化工学院化学工程系，北京化工学院化学工程系 |
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| 摘 要： | 采用流动色谱法,在液氮温度下测定不同原料来源和不同外型的几种活性炭的吸附等温线。用一点法、B.E.T三参数法,层厚法,孔模型法计算其比表面。采用圆筒孔等效模型计算孔径分布。研究结果表明:几种活性炭均系比表面大(>1000m~2/g)和微孔发达的物质。根据D-R方程计算微孔体积V_0和特征吸附能E等。
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Study of specific surface and pore size distribution of several kinds of activated carbon |
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| Abstract: | This paper concerns the measurement of adsorption isotherm of several kinds of activated carbon made from different raw materials and of different shape. The measurement was done by means of flow chromatography at the temperature of liquid nitrogen. One point method, B. E. T. three parameters method, layer thickness method and pore model method were used to obtain the specific surface area. The pore size distribution was obtained by using cylinder pore equivalent mcdel calculation. The results indicated that all the activated carbon studied had large specific area(>1000m~2/g)and were micropore-rich materials. Micropore volume V_0 and characteristic adsorption energy were calculated with the aid of D-R equation. |
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