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K. M. Kassim
School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia 14300 Nibong Tebal, Penang, MALAYSIA
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry

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Phase Equilibrium Study in Supercritical Fluid Extraction of Ethanol to Octane Mixture Using CO2 R. Davarnejad; K. M. Kassim; A. Zainal; Suhairi A. Sata
ASEAN Journal of Chemical Engineering Vol 7, No 1 & 2 (2007)
Publisher : Department of Chemical Engineering, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (148.673 KB) | DOI: 10.22146/ajche.50135

Abstract

Solubility data was measured for carbon dioxide with ethanol and octane using a phase equilibrium loading re-circulating high-pressure type apparatus at a pressure up to 100.75 bar and a temperature of 348.15K for ethanol and octane mixture involved with 25% ethanol and 75% octane. Experimental data was compared with the calculated regular solution theory data. A procedure is employed to each phase by applying activity coefficient expressions based on regular solution theory. Calculations along these lines are described and the physical bases for applying this method under the relevant conditions are discussed. The regular solution theory approach has been found to be encouraging for the prediction of phase equilibria solubilities though the interaction parameters must be regarded as pressure dependent.
Co-Authors A. Zainal R. Davarnejad Suhairi A. Sata