Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Vapor liquid equilibria for the ternary system of carbon dioxide + ethanol + ethyl acetate at elevated pressures

Cheng, C.-H.[Cheng-Hsi], Chen, Y.-P.[Yan-Ping]
Fluid Phase Equilib. 2006, 242, 2, 169-175
ABSTRACT
Vapor liquid equilibrium (VLE) data for the ternary system of carbon dioxide, ethanol and ethyl acetate were measured in this study at 303.2, 308.2, and 313.2 K, and at pressures from 4 to 7MPa. A static type phase equilibrium apparatus with visual sapphire windows was used in the experimental measurements. New VLE data for CO2 in the mixed solvent were presented. These ternary VLE data at elevated pressures were also correlated using either the modified Soave Redlich Kwong or Peng Robinson equation of state, with either the van der Waals one-fluid or Huron Vidal mixing model. Satisfactory correlation results are reported with temperature-independent binary parameters. It is observed that at 313.2K and 7MPa, ethanol can be separated from ethyl acetate into the vapor phase at all concentrations in the presence of high pressure CO2.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 C2H6O ethanol
3 C4H8O2 ethyl acetate
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
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 2
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:UFactor:2
  • 1
  • POMD
  • 3
  • Refractive index (Na D-line) ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Standard Abbe refractometry
  • 1
  • POMD
  • 3
  • Mass density, kg/m3 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • VIBTUB:UFactor:2
  • 1
  • POMD
  • 2
  • 1
  • 3
  • Mole fraction - 2 ; Gas
  • Mole fraction - 2 ; Liquid
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Gas
  • Pressure, kPa; Gas
  • Mole fraction - 1; Gas
  • Gas
  • Liquid
  • CHROM:UFactor:8
  • CHROM:UFactor:8
  • CHROM:UFactor:8
  • 60