A proposal for parametrizing the Sanchez-Lacombe equation of state

被引：35

作者：

Gauter, K ^{[1
]}

Heidemann, RA ^{[1
]}

机构：

[1] Univ Calgary, Dept Chem & Petr Engn, Calgary, AB T2N 1N4, Canada

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2000年 / 39卷 / 04期

关键词：

D O I：

10.1021/ie990800m

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

It is shown that the three pure-component parameters in the Sanchez-Lacombe equation of state can be determined from the critical temperature, critical pressure, and acentric factor. Vapor pressures from the equation have accuracy comparable to that obtained with the original Soave-Redlich-Kwong equation and Peng-Robinson equation, even without introducing any temperature dependence in the parameters. If temperature dependence is added to the Sanchez-Lacombe epsilon energy parameter, the accuracy in the vapor pressures can be improved.

引用

页码：1115 / 1117

页数：3

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