Vapor-liquid equilibrium for the binary systems tetrahydrothiophene plus toluene and tetrahydrothiophene plus o-xylene at 368.15K and 383.15K

Erlin Sapei*, Petri Uusi-Kyyny, Kari I. Keskinen, Juha-Pekka Pokki, Ville Alopaeus

*Corresponding author for this work

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Isothermal vapor-liquid equilibrium (VLE) for tetrahydrothiophene + toluene and tetrahydrothiophene + o-xylene at 368.15K and 383.15K was measured with a recirculation still. Liquid- and vapor-phase compositions were determined with gas chromatography. All systems exhibit a small positive deviation from Raoult's law and show nearly ideal behavior. All VLE measurements passed the point test used. The experimental results were correlated with the Wilson model and compared with COSMO-SAC predictive models. COSMO-SAC predictions show a slight negative deviation from Raoult's law for all systems measured. Raoult's law can be used to describe all systems studied. The activity coefficients at infinite dilution are presented. (c) 2009 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)4-8
Number of pages5
JournalFluid Phase Equilibria
Volume296
Issue number1
DOIs
Publication statusPublished - 15 Sep 2010
MoE publication typeA1 Journal article-refereed
EventColloquium in Thermophysical Properties for Scientific Research and Industry held in honor of Dominique Richon - Paris, France
Duration: 3 Sep 20094 Sep 2009

Keywords

  • Vapor pressure
  • Vapor-liquid equilibria
  • Tetrahydrothiophene
  • Toluene
  • o-Xylene
  • COSMO-SAC
  • SOLVATION MODEL
  • PREDICTION
  • PRESSURES
  • EQUATION
  • STATE

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