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Van der waals mixing rules for cubic equations of state. Applications for supercritical fluid extraction modelling

โœ Scribed by T.Y. Kwak; G.A. Mansoori

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
674 KB
Volume
41
Category
Article
ISSN
0009-2509

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โœฆ Synopsis

A new concept for the development of mixing rules for cubic equations of state consistent with statistical-me&anical theory of the van der Wads mixing rules is introduced. Utility of this concept is illustrated by its application to the Redlich-Kwong (RK) and the Peng-Robinson (PR) equations of state. The resulting mixing rules for the Redlich-Kwong and the Peng-Robinson equations of state are tested through prediction of solubility of heavy solids in supercritical fluids. It is shown that the new mixing rules can pralict supercritical solubilities more accurately than the original mixing rules of the Redlich-Kwong and Peng-Robinson equations of state.

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