Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Isothermal vapor-liquid equilibrium data for the carbon dioxide (R744) + decafluorobutane (R610) system at temperatures from 263 to 353K

Valtz, A.[Alain], Courtial, X.[Xavier], Johansson, E.[Erik], Coquelet, C.[Christophe], Ramjugernath, D.[Deresh]
Fluid Phase Equilib. 2011, 304, 1-2, 44-51
ABSTRACT
Isothermal vapor-liquid equilibrium data are presented for the carbon dioxide (CO2) + decafluorobutane (C4F10) system. Measurements were performed for seven isotherms (three isotherms below and four above the critical temperature of CO2) ranging from 263.15 to 352.98 K, with pressure ranging from 0.0727 to 6.8628 MPa. The measurements were undertaken using a static-analytic type apparatus, with sampling of the equilibrium phases via pneumatic capillary samplers (ROLSITM, Armine s patent). The apparatus, as well as the samplers was developed in the CEP/TEP laboratory. The maximum uncertainties in the measurements were within +-0.02 K, +-0.0006MPa and +-2.5% (relative) for temperature, pressure, and equilibrium phase mole fractions, respectively. The full set of isothermal vapor-liquid equilibrium data were correlated with the Peng-Robinson equation of state, incorporating the Mathias-Copeman alpha function, with the Wong-Sandler mixing rule utilizing the NRTL activity coefficient model. These measurements have also been compared to results obtained from molecular simulation using the Gibbs ensemble Monte Carlo method.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 C4F10 decafluorobutane
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
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 30
  • POMD
  • 1
  • 2
  • Critical pressure, kPa ; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Extrapolated vapor pressure
  • 4
  • POMD
  • 1
  • 2
  • Critical temperature, K ; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • Gas
  • Obtained by fitting data
  • 4
  • POMD
  • 1
  • 2
  • Vapor or sublimation pressure, kPa ; Liquid
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 83
  • POMD
  • 1
  • 2
  • Mole fraction - 1 ; Gas
  • Mole fraction - 1; Liquid
  • Temperature, K; Liquid
  • Gas
  • Liquid
  • Chromatography
  • 83