Theory for multicomponent adsorption equilibrium: Multispace adsorption model

被引:27
作者
Gusev, V
OBrien, JA
Jensen, CRC
Seaton, NA
机构
[1] YALE UNIV,DEPT CHEM ENGN,NEW HAVEN,CT 06520
[2] UNIV CAMBRIDGE,DEPT CHEM ENGN,CAMBRIDGE CB2 3RA,ENGLAND
关键词
D O I
10.1002/aic.690421009
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A new theory for the prediction of multicomponent adsorption equilibrium in non-crystalline porous solids is presented: the multispace adsorption model (MSAM). This theory allows for the inherent nonuniformity of the adsorbed phase by describing separately the adsorption in ''spaces'' close to, and far from, the adsorbent surface. The inputs to the calculation are the pure-species adsorption isotherms and a single parameter characteristic of the adsorbent that can be obtained from very limited mixture data. We evaluate the theory by predicting multicomponent adsorption for a range of carbon adsorbents, making use of our own experimental results and literature data. The MSAM gives quantitative predictions for all the systems studied.
引用
收藏
页码:2773 / 2783
页数:11
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