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

Solubilities and Adsorption Equilibria of beta-Carotene in Supercritical and Near-Critical Fluids

Chuang, M.-H.[Meng-Han], Johannsen, M.[Monika]
J. Chem. Eng. Data 2011, 56, 5, 1770-1777
ABSTRACT
A systematic investigation of solubility and adsorption equilibria of ss-carotene in carbon dioxide and propane, respectively, at elevated pressures was carried out. Investigated at (303, 313, and 323) K and over a pressure range from (3.2 to 13.4) MPa, the solubility of ss-carotene in propane was in the range of (110 to 450) mg*kg-1 propane and approximately 2 orders of magnitude higher than that in supercritical carbon dioxide. Adsorption equilibria of ss-carotene in carbon dioxide with a modifier and in propane were studied on nonpolar chromatographic adsorbents. Concerning adsorption equilibria of ss-carotene in carbon dioxide with 2-propanol as a modifier, the loading decreases with increasing modifier content and increasing pressure. Regarding the adsorption equilibrium of ss-carotene in propane, the loading achieved is much lower than in carbon dioxide due to the higher solubility of ss-carotene in propane.
Compounds
# Formula Name
1 C40H56 .beta.-carotene
2 C3H8 propane
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
  • Mole fraction - 1 ; Liquid
  • Temperature, K; Liquid
  • Pressure, kPa; Liquid
  • Liquid
  • Gas
  • Chromatography
  • 22