In‐situ  extraction and purification of ethanol using commercial oleic acid | Zendy

Jassal D. S. | Zendy; Zhang Z. | Zendy; Hill G. A. | Zendy

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In‐situ extraction and purification of ethanol using commercial oleic acid

Author(s) -

Jassal D. S.,

Zhang Z.,

Hill G. A.

Publication year - 1994

Publication title -

the canadian journal of chemical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.404

H-Index - 67

eISSN - 1939-019X

pISSN - 0008-4034

DOI - 10.1002/cjce.5450720508

Subject(s) - ethanol , oleic acid , industrial fermentation , extraction (chemistry) , chemistry , chromatography , alcohol , distillation , volume (thermodynamics) , fermentation , biochemistry , physics , quantum mechanics

The flash process for the removal of ethanol from commercial oleic acid has been experimentally studied and modelled using a modified Redlich‐Kwong‐Soave equation of state (RKAES) and the ASPEN process simulator. Using feed ethanol and water concentrations spanning the range of expected liquid‐liquid extraction concentrations, it was found that 93.6% by weight of ethanol in the distillate was obtained consuming only 2 MJoules of energy per kilogram of ethanol recovered. The RKAES model was found to reasonably predict the ethanol recovery and purity with errors under 5%. Commercial oleic acid was found to be completely non‐inhibitory towards the growth of Saccharomyces cerevisiae cells when used for in‐situ extraction at a concentration of 50% of the total fermenter volume.

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