Solubility measurements and analysis of binary, ternary and quaternary systems of palm olein, squalene and oleic acid in supercritical carbon dioxide

N. Al-Darmaki, T. Lu, B. Al-Duri, J. B. Harris, T. L.F. Favre, K. Bhaggan, R. C.D. Santos

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Through the application of a dynamic method, the solubility of three lipid components with different volatilities and polarities was measured in supercritical carbon dioxide (SC-CO2). Binary systems of CO 2/squalene (SQ), CO2/oleic acid (OA) and CO 2/pseudo-component palm olein (PO) were measured at temperatures of 313, 333 and 353 K, and at a pressure range of 10-30 MPa. A ternary system of CO2/SQ/PO and a quaternary system of CO2/SQ/PO/OA were also investigated at 313 K and pressures of 10-25 MPa. Comparison of the ternary system with the binary system showed a decrease in the solubility of SQ, with a corresponding rise in the solubility of PO. In the quaternary system, the presence of OA decreased the selectivity of SQ. The data were correlated using Chrastil's equation in order to examine the general trend of solubility behaviour.

Original languageEnglish
Pages (from-to)189-195
Number of pages7
JournalSeparation and Purification Technology
Volume83
Issue number1
DOIs
Publication statusPublished - Nov 15 2011
Externally publishedYes

Keywords

  • Oleic acid
  • Palm olein
  • Selectivity
  • Solubility
  • Squalene
  • Supercritical carbon dioxide

ASJC Scopus subject areas

  • Analytical Chemistry
  • Filtration and Separation

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