Measurement of VLE data for propane+1,1-difluoroethane at various temperatures from 268.15 to 333.15 K

Gimyeong Seong, Ah Ram Kim, Ki Pung Yoo, Jong Sung Lim

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

Isothermal vapor-liquid equilibrium data for the binary systems of propane (R-290) (1)+1,1-difluoroethane (HFC-152a) (2) were measured at eight temperatures of (268.15, 273.15, 283.15, 293.15, 303.15, 313.15, 323.15 and 333.15 K), respectively. The experiments were performed with a circulation-type equilibrium apparatus to measure temperature, pressure, and the compositions of the liquid and vapor phases. The experimental data were correlated with the Peng-Robinson equation of state (PR-EoS) using the Wong-Sandler mixing rules and the Carnahan-Starling-DeSantis equation of state (CSD EoS). Calculated results showed good agreement with experimental data. It was found that this system has very strong positive azeotropes for all the temperature ranges studied here.

Original languageEnglish
Pages (from-to)206-213
Number of pages8
JournalKorean Journal of Chemical Engineering
Volume26
Issue number1
DOIs
Publication statusPublished - 2009 Jan
Externally publishedYes

Keywords

  • Carnahan-Staring- DeSantis Equation of State (CSD EoS)
  • HFC-152a
  • Peng-Robinson Equation of State (PR EoS)
  • Propane (R-290)
  • Vapor-liquid Equilibria (VLE)

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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