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.

Compounds

#	Formula	Name
1	CO2	carbon dioxide
2	C3HF7	1,1,1,2,3,3,3-heptafluoropropane

Datasets

The table above is generated from the ThermoML associated json file (link above). POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied; the numbers refer to the table of compounds on the left.
Type	Compound-#	Property	Variable	Phase	Method	#Points
POMD	1	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	3
POMD	2	Vapor or sublimation pressure, kPa ; Liquid	Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	6
POMD	1 2	Vapor or sublimation pressure, kPa ; Liquid	Mole fraction - 1; Liquid Temperature, K; Liquid	Liquid Gas	Closed cell (Static) method	64
POMD	1 2	Mole fraction - 1 ; Gas	Mole fraction - 1; Liquid Temperature, K; Gas	Gas Liquid	Chromatography	64

Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Isothermal Vapor-Liquid Equilibria for the Binary System of Carbon Dioxide (CO2) + 1,1,1,2,3,3,3-Heptafluoropropane (R-227ea)

Kim, S. A.[Seol A], Lim, J. S.[Jong Sung], Kang, j. W.[jeong Won]

ABSTRACT