Ten years with the CPA (Cubic-Plus-Association) equation of state. Part 2. Cross-associating and multicomponent systems

被引:214
作者
Kontogeorgis, Georgios M. [1 ]
Michelsen, Michael L. [1 ]
Folas, Georgios K. [1 ]
Derawi, Samer [1 ]
von Solms, Nicolas [1 ]
Stenby, Erling H. [1 ]
机构
[1] Tech Univ Denmark, Ctr Phase Equilibria & Separat Proc IVC SEP, Dept Chem Engn, DK-2800 Lyngby, Denmark
关键词
D O I
10.1021/ie051306n
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
In this second article of the review on the applications of the CPA (Cubic-Plus-Association) equation of state, the focus is placed on cross-associating systems. Various such mixtures are investigated, including (i) systems with two self-associating compounds ( e. g., water-alcohol systems or glycols, mixtures with organic acids, or two alcohols) but also binaries with only one self-associating substance, where solvation is expected (e.g., CO2 or styrene with water). The method of accounting for cross-association ( combining rules) and the association scheme of alcohols are investigated. Finally, the manuscript concludes with a summary of current capabilities and limitations of CPA and a list of future challenges.
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页码:4869 / 4878
页数:10
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