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Titolo:
EVALUATION OF PTMSP MEMBRANES IN ACHIEVING ENHANCED ETHANOL REMOVAL FROM FERMENTATIONS BY PERVAPORATION
Autore:
SCHMIDT SL; MYERS MD; KELLEY SS; MCMILLAN JD; PADUKONE N;
Indirizzi:
NATL RENEWABLE ENERGY LAB,1617 COLE BLVD GOLDEN CO 80401 NATL RENEWABLE ENERGY LAB GOLDEN CO 80401
Titolo Testata:
Applied biochemistry and biotechnology
, volume: 63-5, anno: 1997,
pagine: 469 - 482
SICI:
0273-2289(1997)63-5:<469:EOPMIA>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHEMICAL MODIFICATION; RECOVERY; POLY(1-TRIMETHYLSILYL-1-PROPYNE); POLY(SUBSTITUTED-ACETYLENE); ALCOHOL;
Keywords:
PERVAPORATION; PTMSP; PDMS; ETHANOL RECOVERY; MEMBRANE SEPARATIONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
35
Recensione:
Indirizzi per estratti:
Citazione:
S.L. Schmidt et al., "EVALUATION OF PTMSP MEMBRANES IN ACHIEVING ENHANCED ETHANOL REMOVAL FROM FERMENTATIONS BY PERVAPORATION", Applied biochemistry and biotechnology, 63-5, 1997, pp. 469-482

Abstract

The use of membrane processes for the recovery of fermentation products has been gaining increased acceptance in recent years. Pervaporation has been studied in the past as a process for simultaneous fermentation and recovery of volatile products such as ethanol and butanol. However, membrane fouling and low permeate fluxes have imposed limitations on the effectiveness of the process. In this study, we characterize the performance of a substituted polyacetylene membrane, poly[(1-trimethylsilyl)-1-propyne] (PTMSP), in the recovery of ethanol from aqueousmixtures and fermentation broths. Pervaporation using PTMSP membranesshows a distinct advantage over conventional poly(dimethyl siloxane) (PDMS) membranes in ethanol removal. The flux with PTMSP is about threefold higher and the concentration factor is about twofold higher thanthe corresponding performance achieved with PDMS under similar conditions. The performance of PTMSP with fermentation broths shows a reduction in both flux and concentration factor relative to ethanol-water mixtures. However, the PTMSP membranes indicate initial promise of increased fouling resistance in operation with cell-containing fermentationbroths.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/09/20 alle ore 00:05:01