Thermodynamics Research Center / ThermoML | Journal of Chemical Thermodynamics

Phase behaviour of the pseudo-ternary system carbon dioxide + ethanol + fish oil at high pressures

Melgosa, R.[Rodrigo], Sanz, M. T.[Ma Teresa], Solaesa, A. G.[Angela G.], Beltran, S.[Sagrario]
J. Chem. Thermodyn. 2017, 115, 106-113
ABSTRACT
This work provides experimental fluid phase equilibrium data of the pseudo-ternary mixture CO2 + ethanol + fish oil, a system of interest in pharmaceutical and food-industry applications such as the production of omega-3-enriched lipid derivatives at mild, non-oxidative conditions. Experimental tie-lines were obtained by means of an analytical isothermal method with recirculation of the vapour phase. Measurements were carried out in the temperature range 323.15 K 343.15 K and at pressures from 10 MPa to 30 MPa. The Peng-Robinson equation of state coupled with the conventional van der Waals mixing rules with two adjustable parameters was used for experimental data correlation.
Compounds
# Formula Name
1 C2H6O ethanol
2 CO2 carbon dioxide
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
  • 1
  • Vapor or sublimation pressure, kPa ; Liquid
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 18
  • POMD
  • 2
  • 1
  • Mole fraction - 2 ; Gas
  • Mole fraction - 2; Liquid
  • Temperature, K; Liquid
  • Gas
  • Liquid
  • volumetric method
  • 18