Effect of Protein on Flux and Selectivity in Pervaporation of Ethanol from a Dilute Solution

The separation of ethanol from a 2% w/w ethanol-water mixture by pervaporation through a thin polydimethyl-siloxane (PDMS) membrane sheet was studied with and without a dissolved vegetable protein in the feed solution. Total flux and ethanol selectivity were measured at different feed temperatures (...

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Bibliographic Details
Published in:Separation science and technology 2003-01, Vol.38 (12-13), p.3239-3247
Main Authors: Aroujalian, Abdolreza, Belkacemi, Khaled, Davids, Stephen J., Turcotte, Ginette, Pouliot, Yves
Format: Article
Language:English
Subjects:
Ethanol-water mixture
Flux
Pervaporation
Protein
Selectivity
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Summary:The separation of ethanol from a 2% w/w ethanol-water mixture by pervaporation through a thin polydimethyl-siloxane (PDMS) membrane sheet was studied with and without a dissolved vegetable protein in the feed solution. Total flux and ethanol selectivity were measured at different feed temperatures (40, 50, and 60°C) and permeate-side pressures (1, 10, 20, and 40 mm Hg). An analysis of variance was done to detect effects and interactions. Protein at 10 g/L did not foul the membrane under the conditions used and had no significant effect on flux or selectivity. The effects of protein and temperature on ethanol selectivity interacted slightly.
ISSN:0149-6395
1520-5754
DOI:10.1081/SS-120022596