Vapor-liquid equilibria for the 1,1,1,2-tetrafluoroethane (HFC-134a) + n-butane (R-600) system

Jong Sung Lim, Gimyeong Seong, Hee Kook Roh, Hun Soo Byun

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


Isothermal vapor-liquid equilibrium data for the binary mixture of 1,1,1,2-tetrafluoroethane (HFC-134a) + normal butane (R600) were measured at 273.15, 283.15, 293.15, 303.15, 313.15, and 323.15 K, respectively. The experiments were carried out using a continuous 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-Sandier (W-S) mixing rule. 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)1313-1318
Number of pages6
JournalJournal of Chemical and Engineering Data
Issue number4
Publication statusPublished - 2007 Jul
Externally publishedYes

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)


Dive into the research topics of 'Vapor-liquid equilibria for the 1,1,1,2-tetrafluoroethane (HFC-134a) + n-butane (R-600) system'. Together they form a unique fingerprint.

Cite this