吸附
超临界流体
状态方程
热力学
材料科学
二进制数
相(物质)
化学
物理化学
物理
数学
有机化学
算术
作者
Ramkumar Subramanian,Carl T. Lira
出处
期刊:The Kluwer international series in engineering and computer science
日期:1996-01-01
卷期号:: 873-880
被引量:3
标识
DOI:10.1007/978-1-4613-1375-5_109
摘要
We present an engineering model to describe physical adsorption of pure gases and binary mixtures from sub- to supercritical conditions on flat walls, slits and pores using a single temperature-independent parameter for fluid-solid interactions. The fluid-solid potential is superimposed on the Peng-Robinson equation of state, and the configurational energy integral in the inhomogeneous fluid phase is simplified with a local density approximation. This model is capable of quantitative fits over wide pressure and temperature ranges. Model predictions for physical adsorption of pure gases on flat walls are compared with experimental surface excess, amount adsorbed and composition data.
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