Vapor adsorption on microporous adsorbents

被引：34
|
作者：
Aranovich, GL [1 ]
Donohue, MD [1 ]
机构：
[1] Johns Hopkins Univ, Dept Chem Engn, Baltimore, MD 21218 USA
来源：
CARBON | 2000年 / 38卷 / 05期
关键词：
activated carbon; adsorption; modeling; phase equilibria; microporosity;
D O I：
10.1016/S0008-6223(99)00157-8
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：
A new equation describing the adsorption of vapors on microporous adsorbents is presented. This equation is based on the Ono-Kondo model for adsorption in slit-like pores. Results are compared with experimental data For nitrogen on activated carbon over the range of pressures from 0.3 Pa to 0.133 MPa. It is shown that this new equation has several advantages over the widely used Dubinin-Radushkevich (DR) isotherm. In particular, this new equation gives the correct limit of Henry's law at low concentrations and is more general than the DR equation because it is applicable to gases at supercritical conditions. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：701 / 708
页数：8
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