Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Measurements of isothermal (vapour + liquid) equilibria data for {1,1,2,2-Tetrafluoroethane (R134) + trans-1,3,3,3-tetrafluoropropene (R1234ze (E))} at T = (258.150 to 288.150) K

Dong, X.[Xueqiang], Guo, H.[Hao], Gong, M.[Maoqiong], Yang, Z.[Zhi], Wu, J.[Jianfeng]
J. Chem. Thermodyn. 2013, 60, 25-28
ABSTRACT
The isothermal VLE values for the system of {1,1,2,2-Tetrafluoroethane (R134) + trans-1,3,3,3-tetrafluoropropene (R1234ze (E))} at four temperatures from (258.150 to 288.150) K were measured in this work with an apparatus based on the static analytic method. The correlation of VLE results was carried out by means of the Peng Robinson equation of state and the Huron Vidal mixing rules involving the NRTL activity coefficient model. Good consistency is found between the experimental and calculated values by this model at each experimental point. The average absolute relative deviations of pressure are between 0.09% and 0.28%, while the average absolute deviations of vapour phase mole fraction lay between 0.0020 and 0.0028. The results show that an azeotropic behaviour was observed for the binary system.
Compounds
# Formula Name
1 C2H2F4 1,1,2,2-tetrafluoroethane
2 C3H2F4 trans-1,3,3,3-tetrafluoropropene
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
  • Closed cell (Static) method
  • 2
  • POMD
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 4
  • POMD
  • 1
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 40
  • POMD
  • 1
  • 2
  • Mole fraction - 1 ; Gas
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Gas
  • Liquid
  • Chromatography
  • 40
  • POMD
  • 1
  • 2
  • Azeotropic composition: mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • By X=Y
  • 4
  • POMD
  • 1
  • 2
  • Azeotropic pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • By X=Y
  • 4