Solubility prediction of low volatile solutes in supercritical carbon dioxide in the absence of saturation pressure data

Masturah Markom, Teoh Wen Hui

Research output: Contribution to journalArticle

Abstract

Saturation pressure parameter is one of the most important properties in thermodynamic studies. Besides experimental measurements, many correlations and equations have been developed to determine saturation pressure for range of components. However, most of them require critical properties of the components, which are unavailable for most of heavy and low volatile components. In this paper, a technique was suggested to estimate the saturation pressure of low volatile components dissolved in supercritical carbon dioxide. The Dilute Solution Theory (DST) model was applied to two compound groups, namely the arenes (aromatic compounds) and the vegetable oils, by fitting two common adjustable parameters for each group. The saturation pressure for each compound was calculated using a newly developed equation. It was found that the estimated saturation pressures at each temperature studied were in good agreement with the values calculated by Antoine equation or by data extrapolation from literature.

Original languageEnglish
Pages (from-to)170-175
Number of pages6
JournalJournal of Supercritical Fluids
Volume40
Issue number2
DOIs
Publication statusPublished - Mar 2007

Fingerprint

Carbon Dioxide
carbon dioxide
Carbon dioxide
solutes
solubility
Solubility
saturation
predictions
vegetables
Plant Oils
aromatic compounds
Aromatic compounds
Vegetable oils
Extrapolation
extrapolation
oils
Thermodynamics
thermodynamics
estimates
Temperature

Keywords

  • Heavy organics
  • Modelling
  • Saturation pressure
  • Supercritical fluid extraction
  • Vegetable oils

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Materials Science (miscellaneous)
  • Physics and Astronomy (miscellaneous)

Cite this

Solubility prediction of low volatile solutes in supercritical carbon dioxide in the absence of saturation pressure data. / Markom, Masturah; Hui, Teoh Wen.

In: Journal of Supercritical Fluids, Vol. 40, No. 2, 03.2007, p. 170-175.

Research output: Contribution to journalArticle

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