Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Isothermal vapor-liquid equilibrium data for the trifluoromethane (R23) + 2,3,3,3-tetrafluoroprop-1-ene (R1234yf) system at temperatures from 254 to 348 K

Madani, H.[Hakim], Valtz, A.[Alain], Zhang, F.[Fan], Abbadi, J. E.[Jamal El], Houriez, C.[Celine], Paricaud, P.[Patrice], Coquelet, C.[Christophe]
Fluid Phase Equilib. 2016, 415, 158-165
ABSTRACT
In this study, we present new experimental data of vapor-liquid equilibrium for the binary system trifluoromethane (R23) + 2,3,3,3-tetrafluoropropene (R1234yf), measured at 254.10, 273.43, 293.24, 303.17, 318.08, 332.97, and 348.40 K and at pressure ranging from 0.1568 to 4.3553 MPa. A static-analytic - type apparatus is used to do the measurements, with sampling of the equilibrium phases via capillary sampler (ROLSI ). We used two different methods to model the obtained isothermal P-x-y data: 1) the Peng-Robison cubic equation of state, incorporating the Mathias-Copeman alpha function, combined with the NRTL excess free energy model and Wong-Sandler mixing rules, and 2) the PC-SAFT equation of state. Both models show a very good agreement with the experimental data.
Compounds
# Formula Name
1 C3H2F4 2,3,3,3-tetrafluoro-1-propene
2 CHF3 trifluoromethane
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
  • 7
  • POMD
  • 2
  • 1
  • Vapor or sublimation pressure, kPa ; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 74
  • POMD
  • 2
  • 1
  • Mole fraction - 2 ; Gas
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Gas
  • Liquid
  • Chromatography
  • 74
  • POMD
  • 2
  • 1
  • Critical temperature, K ; Liquid
  • Mole fraction - 2; Liquid
  • Liquid
  • Gas
  • scaling laws
  • 4
  • POMD
  • 2
  • 1
  • Critical pressure, kPa ; Liquid
  • Mole fraction - 2; Liquid
  • Liquid
  • Gas
  • scaling laws
  • 4