Representation of excess enthalpies by the PRSV equation of state with the modified Huron-Vidal first order and Wong-Sandler mixing rules

被引：20

作者：

Ohta, T

机构：

来源：

FLUID PHASE EQUILIBRIA | 1997年 / 129卷 / 1-2期

关键词：

method of calculation; application; equation of state; excess; enthalpy; Gibbs energy;

D O I：

10.1016/S0378-3812(96)03175-5

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Excess enthalples H-E for various kinds of binary systems at low and high pressures are well represented by the PRSV equation of state with the modified Huron-Vidal first order (MHV1) and Wong-Sandler (WS) mixing rules. The NRTL and modified UNIQUAC excess. Gibbs free energy G(E) models with linearly temperature-dependent parameters are used for the two mixing rules, introducing the parameters determined from low-pressure vapor-liquid and liquid-liquid equilibria. Good predictions are obtained for strongly non-ideal ternary systems. Simultaneous representation of vapor-liquid equilibria and H-E data is also made for four binary systems using the present equation of state/G(E) models. (C) 1997 Elsevier Science B.V.

引用

页码：89 / 103

页数：15

共 45 条

[1] COMPUTATIONAL METHODS FOR HIGH-PRESSURE PHASE-EQUILIBRIA AND OTHER FLUID-PHASE PROPERTIES USING A PARTITION-FUNCTION .2. MIXTURES [J].