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Isothermal Vapor-Liquid Equilibria for the Binary System of Carbon Dioxide (CO2)+1,1,1,2,3,3,3-Heptafluoropropane (R-227ea)
- Authors
- Kim, Seol A.; Lim, Jong Sung; Kang, Jeong Won
- Issue Date
- 11월-2010
- Publisher
- AMER CHEMICAL SOC
- Citation
- JOURNAL OF CHEMICAL AND ENGINEERING DATA, v.55, no.11, pp.4999 - 5003
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF CHEMICAL AND ENGINEERING DATA
- Volume
- 55
- Number
- 11
- Start Page
- 4999
- End Page
- 5003
- ISSN
- 0021-9568
- Abstract
- Isothermal vapor liquid equilibrium (VLE) data for the binary mixture of carbon dioxide (CO2) + 1,1,1,2,3,3,3-heptafluoropropane (HFC-227ea) were measured at six evenly spaced temperatures of (278.15, 288.15, 298.15, 308.15, 318.15, and 328.15) K. The data in the two-phase region were measured by using a circulation-type equilibrium apparatus in which both vapor and liquid phases are continuously recirculated. The experimental data were correlated with the Peng-Robinson equation of state (PR-EoS) using the Wong-Sandler (W-S) mixing rules combined with the nonrandom two-liquid (NRTL) excess Gibbs free energy model. The calculated values with the PR-EoS using the W-S mixing rules show good agreement with the experimental data.
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