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In relation to this article, we declare that there is no conflict of interest.
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Received December 3, 2003
Accepted March 10, 2004
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Thermodynamic Modeling of Vapor-Liquid Equilibria and Excess Properties of the Binary Systems Containing Diethers and n-Alkanes by Cubic Equation of State

Department of Chemical Engineering, Faculty of Technology and Metallurgy, University of Belgrade, 11120 Belgrade, Karnegijeva 4, Serbia and Montenegro, Korea
Korean Journal of Chemical Engineering, July 2004, 21(4), 858-866(9), 10.1007/BF02705531
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Abstract

A comparison of the performances of two different approaches of cubic equations of state models, based on a classical van der Waals and mixing rules incorporating the GE equation, was carried out for correlation of Vapor-Liquid Equilibria (VLE), HE and cPE data alone, and simultaneous correlation of VLE+HE, VLE+cPE, HE+cPE and VLE+HE+cPE data for the diethers (1,4-dioxane or 1,3-dioxolane) with n-alkane systems. For all calculations the Peng-Robinson-Stryjek-Vera cubic equation of state (PRSV CEOS) was used. A family of mixing rules for the PRSV CEOS based on the Modified van der Waals one-fluid mixing rule (MvdW1) and two well-known CEOS/GE mixing rules (MHV1 and MHV2), was considered. The NRTL equation, as the GE model with linear or reciprocal temperature dependent parameters, was incorporated in the CEOS/GE models. The results obtained by the CEOS/GE models exhibit significant improvement in comparison to the MvdW1 models.

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