Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Measurement of vapor liquid equilibria for the binary systems of propane + 1,1,1,2-tetrafluoroethane and 1,1,1-trifluoroethane + propane at various temperatures

Lim, J. S.[Jong Sung], Park, J. -Y.[Ji-Young], Kang, j. W.[jeong Won], Lee, B. G.[Byung Gwon]
Fluid Phase Equilib. 2006, 243, 1-2, 57-63
ABSTRACT
Isothermal vapor liquid equilibrium data for the binary systems of propane + 1,1,1,2-tetrafluoroethane (HFC-134a) and 1,1,1-trifluoroethane (HFC-143a) + propane (HC-290) were measured at 273.15, 283.15, 293.15, 303.15, 313.15 and 323.15 K, and 268.15, 278.15, 298.15, 308.15, and 318.15 K, respectively. The experiments were carried out using a circulation-type equilibrium apparatus with the measurement of temperature, pressure, and the compositions of the liquid and vapor phases. The experimental data were correlated with the Carnahan Starling De Santis (CSD) equation of state. Calculated results showed good agreement with experimental data for both binary systems. It was found that these two systems have very strong positive azeotrope for all the temperature ranges studied here.
Compounds
# Formula Name
1 C2H2F4 1,1,1,2-tetrafluoroethane
2 C2H3F3 1,1,1-trifluoroethane
3 C3H8 propane
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 Constraint Phase Method #Points
  • POMD
  • 1
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • EBULLIO:UFactor:64
  • 6
  • POMD
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • EBULLIO:UFactor:64
  • 6
  • POMD
  • 3
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • EBULLIO:UFactor:64
  • 13
  • POMD
  • 3
  • 1
  • Vapor or sublimation pressure, kPa ; Gas
  • Mole fraction - 3; Gas
  • Temperature, K; Gas
  • Gas
  • Liquid
  • EBULLIO:UFactor:8
  • 66
  • POMD
  • 3
  • 1
  • Mole fraction - 3 ; Liquid
  • Mole fraction - 3; Gas
  • Temperature, K; Gas
  • Liquid
  • Gas
  • CHROM:UFactor:8
  • 66
  • POMD
  • 3
  • 2
  • Vapor or sublimation pressure, kPa ; Gas
  • Mole fraction - 2; Gas
  • Temperature, K; Gas
  • Gas
  • Liquid
  • EBULLIO:UFactor:8
  • 42
  • POMD
  • 3
  • 2
  • Mole fraction - 2 ; Liquid
  • Mole fraction - 2; Gas
  • Temperature, K; Gas
  • Liquid
  • Gas
  • CHROM:UFactor:4
  • 42