Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

New high pressure vapor-liquid equilibrium data and density predictions for carbon dioxide + ethyl acetate system

Sima, S.[Sergiu], Feroiu, V.[Viorel], Geana, D.[Dan]
Fluid Phase Equilib. 2012, 325, 45-52
ABSTRACT
Vapor-liquid equilibria (VLE) data at (323.2, 333.2, 343.2, 353.2 and 363.2) K and pressures between 0.85 and 10.9 MPa for the carbon dioxide + ethyl acetate system are reported. The experimental method used in this work was a static analytical method with liquid phase sampling using a rapid on-line sampler injector (ROLSITM) coupled to a gas chromatograph (GC) for analysis. Measured VLE data and literature data for carbon dioxide + ethyl acetate system were modeled with a general cubic equation of state (GEOS) using classical van der Waals (two parameters conventional mixing rule - 2PCMR) mixing rules. A single set of interaction parameters was used to represent the VLE data, the critical line of the system and the mixture densities in a wide range of temperatures, pressures and compositions. The calculation results were compared to the new data reported in this work, and to available literature data. The results show a satisfactory agreement between the model and the experimental data.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 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
  • 1
  • 2
  • Vapor or sublimation pressure, kPa ; Gas
  • Mole fraction - 1; Liquid
  • Temperature, K; Gas
  • Gas
  • Liquid
  • Closed cell (Static) method
  • 41
  • POMD
  • 1
  • 2
  • Mole fraction - 1 ; Gas
  • Mole fraction - 1; Liquid
  • Temperature, K; Gas
  • Gas
  • Liquid
  • Chromatography
  • 12