Thermodynamics Research Center / ThermoML | Fluid Phase Equilibria

Solubility of carbon dioxide in pentaerythritol tetraoctanoate

Fedele, L.[Laura], Pernechele, F.[Francesco], Bobbo, S.[Sergio], Scattolini, M.[Mauro], Stryjek, R.[Roman]
Fluid Phase Equilib. 2009, 277, 1, 55-60
ABSTRACT
In this paper, solubility measurements of CO2 in pure pentaerythritol tetraoctanoate (PEC8) between 273 and 343K are presented. The experimentswere performed according to the static, synthetic method. The data are represented using the Peng Robinson equation of state with the Huron Vidal mixing rules and the UNIQUAC equation for the excess Gibbs Energy (gE) at infinite pressure. This system shows immiscibility in liquid phase, with lower critical end point (LCEP) at T=268+-0.1K and xCO2 = 0.98 +- 0.001 and upper critical end point (UCEP) at the critical point of pure CO2.
Compounds
# Formula Name
1 CO2 carbon dioxide
2 C37H68O8 pentaerythritol tetraoctanoate
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 ; Liquid
  • Temperature, K; Liquid
  • Mole fraction - 1; Liquid
  • Liquid
  • Gas
  • Closed cell (Static) method
  • 56