Vapor-liquid equilibria of isopropyl alcohol plus propylene at high pressures : experimental measurement and modeling with the CPA EoS

S Keshtkari, R. Haghbakhsh, S. Raeissi, L.J. Florusse, C.J. Peters

    Research output: Contribution to journalArticleAcademicpeer-review

    12 Citations (Scopus)

    Abstract

    The high pressure vapor-liquid equilibria of binary mixtures of propylene and isopropyl alcohol were measured experimentally within a temperature range of 315-440 K and pressures up to 6 MPa, using a synthetic method. The experimental data were modeled using the cubic plus association (CPA) equation of state (EoS) by once considering and once not considering solvation between the inert and polar molecules in the mixture. Results indicated that taking salvation into account did not make a huge improvement in the accuracy of CPA for this particular system. In addition, the Soave-Redlich-Kwong (SRK) EoS, representing the widely-used engineering EoS family, was also compared to the CPA. Results showed that both the CPA and SRK perform well for this system in the pressure and temperature range investigated, however, the values of binary interaction coefficients required by SRI( to approach the experimental data are much greater than for CPA. (C) 2013 Elsevier B.V. All rights reserved.
    Original languageEnglish
    Pages (from-to)182-189
    JournalJournal of Supercritical Fluids
    Volume84
    DOIs
    Publication statusPublished - 2013

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