Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Isothermal vapor-liquid equilibrium data for the ethylene + 1,1,2,3,3,3-hexafluoro-1-propene binary system between 258 and 308 K at pressures up to 4.56 MPa

Subramoney, S. C.[Shalendra Clinton], Courtial, X.[Xavier], Naidoo, P.[Paramespri], Coquelet, C.[Christophe], Richon, D.[Dominique], Ramjugernatha, D.[Deresh]
Fluid Phase Equilib. 2013, 353, 7-14
ABSTRACT
Isothermal vapor-liquid equilibrium data are reported for ethylene + 1,1,2,3,3,3-hexafluoro-1-propenemixtures at six temperatures in the 258.35 307.38 K range, and pressures up to 4.56 MPa. The experi-mental data were measured using an apparatus based on the static-analytic method equipped with amovable ROLSITMcapillary sampler for repeatable and reliable equilibrium phase sampling and handling.The isothermal P x y data are well correlated with a model comprised of the Peng Robinson equation ofstate containing the Mathias Copeman alpha function, Wong Sandler mixing rule, and NRTL local com-position model. The combined model is termed PR-MC-WS-NRTL . The studied system does not exhibitazeotropic behavior nor liquid liquid immiscibility over the range of investigated temperatures. Mixturecritical points are calculated from the experimental vapor liquid equilibrium data via the extended scal-ing laws and the PR-MC-WS-NRTL model, and are found to be in good agreement with the experimentalisothermal phase envelopes.
Compounds
# Formula Name
1 C2H4 ethene
2 C3F6 hexafluoropropene
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
  • 11
  • POMD
  • 1
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 46
  • POMD
  • 1
  • 2
  • Mole fraction - 1 ; Gas
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Gas
  • Liquid
  • Chromatography
  • 46