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CLC number: O642.4; TQ013.1

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Received: 2005-04-09

Revision Accepted: 2005-07-17

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Journal of Zhejiang University SCIENCE A 2005 Vol.6 No.100 P.17~22


Extension of LCVM-type mixing rule to three-parameter equations of state for vapor-liquid equilibria of mixtures

Author(s):  HAN Xiao-hong, CHEN Guang-ming, WANG Qin, CUI Xiao-long

Affiliation(s):  Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   hanxh@163.com, gmchen@zju.edu.cn

Key Words:  Vapor-liquid equilibrium (VLE), Equation of state (EOS), Mixing rule, Activity coefficient model

HAN Xiao-hong, CHEN Guang-ming, WANG Qin, CUI Xiao-long. Extension of LCVM-type mixing rule to three-parameter equations of state for vapor-liquid equilibria of mixtures[J]. Journal of Zhejiang University Science A, 2005, 6(100): 17~22.

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%T Extension of LCVM-type mixing rule to three-parameter equations of state for vapor-liquid equilibria of mixtures
%A HAN Xiao-hong
%A CHEN Guang-ming
%A CUI Xiao-long
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%D 2005
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T1 - Extension of LCVM-type mixing rule to three-parameter equations of state for vapor-liquid equilibria of mixtures
A1 - HAN Xiao-hong
A1 - CHEN Guang-ming
A1 - WANG Qin
A1 - CUI Xiao-long
J0 - Journal of Zhejiang University Science A
VL - 6
IS - 100
SP - 17
EP - 22
%@ 1673-565X
Y1 - 2005
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2005.AS0017

In this paper, the LCVM mixing rule is extended to the multi-parameter equations of state by combining infinite-pressure and zero-pressure mixing rule models. The new LCVM-type mixing rule, coupled with Patel-Teja equation of state (EOS) is applied for vapor-liquid equilibria of different polar and non-polar systems in which the NRTL activity coefficient model is used to calculate the excess Gibbs free energy. The tested results agree well with existing experimental data within a wide range of temperatures and pressures. In comparison with the Van der Waals mixing rule, the new mixing rule gives much better correlations for the vapor-liquid equilibria of non-polar and polar systems.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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