A Modified Wong-Sandler Mixing Rule for PR Equation of State to Predict Vapor-Liquid Equilibria

化学工业与工程

Chemcial Industry and Engineering

2009, Vol. 26

Issue (3) :240-243 DOI:

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A Modified Wong-Sandler Mixing Rule for PR Equation of State to Predict Vapor-Liquid Equilibria

WU Xuan-jun,LIU Yuan(Wuhan University of Technology,Wuhan 430070,Hubei Province,China)

(Wuhan University of Technology,Wuhan 430070,Hubei Province,China

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Abstract In this paper,a new G~E mixing rule(modified WS) is proposed based on the modification of Wong-Sandler(WS) mixing rule,which is combined with Peng-Robinson(PR) equation of state for the prediction of VLE data of many binary polar systems.The results show that VLE estimation method with MWS mixing rule based on PR equation is generally better than those with WS mixing rule.MWS mixing rule can be applied widely in engineering practice.

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Received 2009-05-15; published 2009-05-15

Cite this article:

WU Xuan-jun,LIU Yuan.A Modified Wong-Sandler Mixing Rule for PR Equation of State to Predict Vapor-Liquid Equilibria[J] Chemcial Industry and Engineering, 2009,V26(3): 240-243