Thermodynamics Research Center / ThermoML | Journal of Chemical and Engineering Data

Binary Diffusion Coefficients and Retention Factors for Long-Chain Triglycerides in Supercritical Carbon Dioxide by the Chromatographic Impulse Response Method

Kong, C. Y.[Chang Yi], Withanage, N. R. W.[Nirosha R. W.], Funazukuri, T.[Toshitaka], Kagei, S.[Seiichiro]
J. Chem. Eng. Data 2005, 50, 5, 1635-1640
ABSTRACT
Infinite dilution binary diffusion coefficients D12 and retention factors k have been measured in supercritical carbon dioxide for the long-chain triglyceride triarachidonin at 313.2 K at (10 to 30) MPa, and trierucin and trinervonin both at 308.2 K to 323.2 K over the pressure range from (9 to 30) MPa by the chromatographic impulse response method. It was found that the D12 predictive correlations proposed previously, D12/T as a function of viscosity and the Schmidt number correlations, were valid for such long-chain triglycerides having molecular weights near or over 1000. Furthermore, partial molar volumes of the solutes were determined from the relationships between k and CO2 density.
Compounds
# Formula Name
1 C63H98O6 1,2,3-tri-(cis,cis,cis,cis)-5,8,11,14-eicosatetraenoyl
2 C69H128O6 trierucin
3 C75H140O6 1,2,3-tri-[cis-15-tetracosenoyl]-glycerol
4 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
  • 4
  • 1
  • Binary diffusion coefficient, m2/s ; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Mole fraction - 1; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • chromatographic impulse response method
  • 27
  • POMD
  • 4
  • 2
  • Binary diffusion coefficient, m2/s ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Mole fraction - 2; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • chromatographic impulse response method
  • 101
  • POMD
  • 4
  • 3
  • Binary diffusion coefficient, m2/s ; Fluid (supercritical or subcritical phases)
  • Temperature, K; Fluid (supercritical or subcritical phases)
  • Pressure, kPa; Fluid (supercritical or subcritical phases)
  • Mole fraction - 3; Fluid (supercritical or subcritical phases)
  • Fluid (supercritical or subcritical phases)
  • chromatographic impulse response method
  • 38