Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Phase behavior of the poly(vinyl pyrrolidone) + dichloromethane + supercritical carbon dioxide system

Shin, M. S.[Moon Sam], Lee, J. H.[Ju Ho], Kim, H.[Hwayong]
Fluid Phase Equilib. 2008, 272, 1-2, 42-46
ABSTRACT
The use of supercritical fluids has been developed in a wide range of techniques and processes including drug, cosmetics, and food industry. The bubble points of dichloromethane + supercritical carbon dioxide (CO2) system were measured at temperature from 303.2 to 328.2K and the cloud points of poly(vinyl pyrrolidone) (PVP) + dichloromethane + supercritical CO2 system were measured at temperature ranging from 313.13 to 363.33K and pressure up to 25.5MPa. Phase behavior of experimental data could be correlated satisfactorily with the quasi-chemical nonrandom lattice fluid (QLF) equation of state by introducing temperature-dependent binary interaction parameters.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 CH2Cl2 dichloromethane
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 - 1; Liquid
  • Temperature, K; Liquid
  • Liquid
  • Gas
  • CCELL:UFactor:12
  • 24