High pressure isothermal vapor-liquid equilibria of carbon dioxide+1,1-difluoroethane

Jeong Won Kang, Ah Ram Kim, Jong Sung Lim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Vapor-liquid equilibrium data for the binary mixture of carbon dioxide (CO 2)+1,1-difluoroethane (HFC-152a) were measured at five evenly spaced temperatures of (273. 15, 283. 15, 293. 15, 303. 15 and 313. 15) K by using a circulation-type equilibrium apparatus in which both vapor and liquid phases were recirculated. The experimental data were correlated with the Peng-Robinson equation of state (PR-EoS) using the Wong-Sandler mixing rules combined with the NRTL excess Gibbs free energy model and the Carnahan-Starling-DeSantis equation of state (CSD EoS). Almost all the calculated values with these two models showed good agreement with the experimental data.

Original languageEnglish
Pages (from-to)261-266
Number of pages6
JournalKorean Journal of Chemical Engineering
Volume27
Issue number1
DOIs
Publication statusPublished - 2010 Jan 1
Externally publishedYes

Fingerprint

Equations of state
Carbon Dioxide
Phase equilibria
Carbon dioxide
Gibbs free energy
Carbon Monoxide
Binary mixtures
Vapors
Liquids
Temperature
1,1-difluoroethane

Keywords

  • Carbon Dioxide (CO )
  • Carnahan-Staring-DeSantis Equation of State (CSD EoS)
  • HFC-152a
  • Peng-Robinson Equation of State (PR EoS)
  • Vapor-liquid Equilibria (VLE)

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

High pressure isothermal vapor-liquid equilibria of carbon dioxide+1,1-difluoroethane. / Kang, Jeong Won; Kim, Ah Ram; Lim, Jong Sung.

In: Korean Journal of Chemical Engineering, Vol. 27, No. 1, 01.01.2010, p. 261-266.

Research output: Contribution to journalArticle

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