Effects of adsorbate-adsorbate interaction in the description of adsorption isotherm of hydrocarbons in micro-mesoporous carbonaceous materials

被引：39

作者：

Do, DD ^{[1
]}

Do, HD ^{[1
]}

机构：

[1] Univ Queensland, Dept Chem Engn, St Lucia, Qld 4072, Australia

来源：

APPLIED SURFACE SCIENCE | 2002年 / 196卷 / 1-4期

关键词：

activated carbon; pore size distribution; pore filling; multi-layering adsorption; adsorbate-adsorbate interaction;

D O I：

10.1016/S0169-4332(02)00041-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, we present a model accounting for the adsorbate-adsorbate interaction in the adsorbed phase in the description of adsorption of pure vapors on carbonaceous materials. The details of the adsorbate-adsorbate interaction of a particular species are obtained from the analysis of its adsorption data on non-porous carbon black. The predictability of the model is tested against the adsorption isotherm data for benzene, toluene, n-pentane, n-hexane, carbon tetrachloride, methanol and ethanol on microporous activated carbon. It was found that the model prediction for non-polar adsorbates are satisfactory while it under-predicts for polar adsorbates, which is attributed to their additional interaction with functional groups. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：13 / 29

页数：17

共 22 条

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