Thermodynamic equilibrium of adsorbed phases

被引：6
作者：
Cabral, VF [1 ]
Alfradique, MF [1 ]
Tavares, FW [1 ]
Castier, M [1 ]
机构：
[1] Fed Univ Rio De Janeiro, Escola Quim, BR-21949900 Rio De Janeiro, Brazil
来源：
FLUID PHASE EQUILIBRIA | 2005年 / 233卷 / 01期
关键词：
adsorption; phase equilibrium; equations of state; lattice models;
D O I：
10.1016/j.fluid.2005.04.013
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The types of phase equilibrium behavior for adsorbed binary mixtures that can be predicted by an equation of state (EOS) based on the lattice gas theory are investigated. The equilibrium conditions were obtained by solving the isofugacity equations between adsorbed phases. It is observed that the investigated EOS can predict complex behavior for adsorbed phases such as the existence of azeotropes, and retrograde and double retrograde phase transition phenomena, that are analogous to those found in bulk phase equilibrium. Furthermore, it was possible to find systems that presented phase equilibrium between two dense adsorbed phases, analogously to liquid-liquid equilibrium for bulk phases. Experimental data would be necessary to confirm the types of adsorbed phase behavior predicted by the calculations presented. (c) 2005 Elsevier B.V. All rights reserved.
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页码：66 / 72
页数：7
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