Isothermal vapor-liquid equilibria for the binary system of carbon dioxide (CO2) + 1,1,1,2,3,3,3-Heptafluoropropane (R-227ea)

Seol A. Kim; Jong Sung Lim; Jeong Won Kang

doi:10.1021/je100583z

Isothermal vapor-liquid equilibria for the binary system of carbon dioxide (CO₂) + 1,1,1,2,3,3,3-Heptafluoropropane (R-227ea)

Seol A. Kim, Jong Sung Lim, Jeong Won Kang

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

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.

Original language	English
Pages (from-to)	4999-5003
Number of pages	5
Journal	Journal of Chemical and Engineering Data
Volume	55
Issue number	11
DOIs	https://doi.org/10.1021/je100583z
Publication status	Published - 2010 Nov 11

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

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10.1021/je100583z

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title = "Isothermal vapor-liquid equilibria for the binary system of carbon dioxide (CO2) + 1,1,1,2,3,3,3-Heptafluoropropane (R-227ea)",

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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AU - Kim, Seol A.

AU - Lim, Jong Sung

AU - Kang, Jeong Won

PY - 2010/11/11

Y1 - 2010/11/11

N2 - 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.

AB - 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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Isothermal vapor-liquid equilibria for the binary system of carbon dioxide (CO₂) + 1,1,1,2,3,3,3-Heptafluoropropane (R-227ea)

Abstract

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