A modified UNIFAC (Dortmund) model. 4. Revision and extension

被引：175

作者：

Gmehling, J ^{[1
]}

Wittig, R ^{[1
]}

Lohmann, J ^{[1
]}

Joh, R ^{[1
]}

机构：

[1] Carl von Ossietzky Univ Oldenburg, Lehrstuhl Tech Chem FB9, D-26111 Oldenburg, Germany

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2002年 / 41卷 / 06期

关键词：

D O I：

10.1021/ie0108043

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The group contribution method modified UNIFAC (Dortmund) has become very popular because of its large range of applicability and the reliable results predicted for vapor-liquid equilibria, solid-liquid equilibria, activity coefficients at infinite dilution, azeotropic data, and excess enthalpies over a wide temperature range. However, in a few cases, especially at high and low temperatures, poor results are obtained. To overcome this problem, the modified UNIFAC (Dortmund) parameters have been refitted to an extended database, Additionally, new groups for different amides, used as selective solvents, have been introduced. Altogether, 43 new or revised pairs of group interaction parameters for modified UNIFAC (Dortmund) are given.

引用

页码：1678 / 1688

页数：11

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