Measurement of vapor-liquid equilibria for the binary systems of propane + 1,1,1,2-tetrafluoroethane and 1,1,1-trifluoroethane + propane at various temperatures

Jong Sung Lim, Ji Young Park, Jeong Won Kang, Byung Gwon Lee

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Isothermal vapor-liquid equilibrium data for the binary systems of propane + 1,1,1,2-tetrafluoroethane (HFC-134a) and 1,1,1-trifluoroethane (HFC-143a) + propane (HC-290) were measured at 273.15, 283.15, 293.15, 303.15, 313.15 and 323.15 K, and 268.15, 278.15, 298.15, 308.15, and 318.15 K, respectively. The experiments were carried out using a circulation-type equilibrium apparatus with the measurement of temperature, pressure, and the compositions of the liquid and vapor phases. The experimental data were correlated with the Carnahan-Starling-De Santis (CSD) equation of state. Calculated results showed good agreement with experimental data for both binary systems. It was found that these two systems have very strong positive azeotrope for all the temperature ranges studied here.

Original languageEnglish
Pages (from-to)57-63
Number of pages7
JournalFluid Phase Equilibria
Volume243
Issue number1-2
DOIs
Publication statusPublished - 2006 May 10

Keywords

  • Azeotropic mixture
  • Carnahan-Starling-De Santis equation of state (CSD EOS)
  • HFC-134a
  • HFC-143a
  • Propane (R-290)
  • Vapor-liquid equilibria (VLE)

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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