Effect of yeast fermentation by-products on poly[1-(trimethylsilyl)-1-propyne] pervaporative performance

The pervaporation recovery of ethanol from yeast fermentation broth was investigated using poly[1-(trimethylsilyl)-1-propyne]. The deterioration of membrane performance in the presence of fermentation broth was observed. The fouled membrane was characterized by gas permeation and density measurement...

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Bibliographic Details
Published in:Journal of membrane science 2003-04, Vol.214 (2), p.229-238
Main Authors: Fadeev, A.G., Kelley, S.S., McMillan, J.D., Selinskaya, Ya.A., Khotimsky, V.S., Volkov, V.V.
Format: Article
Language:English
Subjects:
Fermentation
Fouling
Pervaporation
Poly[1-(trimethylsilyl)-1-propyne]
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Summary:The pervaporation recovery of ethanol from yeast fermentation broth was investigated using poly[1-(trimethylsilyl)-1-propyne]. The deterioration of membrane performance in the presence of fermentation broth was observed. The fouled membrane was characterized by gas permeation and density measurements, and sorption of pure components of the fermentation broth in PTMSP was studied to clarify the fouling mechanism. It was concluded that properties of the membrane deteriorate due to internal contamination of the PTMSP free volume with non-volatile by-products of the fermentation. The PTMSP film did not show appreciable deterioration of membrane properties in the pervaporation of aqueous solution of organic compounds with high volatility.
ISSN:0376-7388
1873-3123
DOI:10.1016/S0376-7388(02)00550-1