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TitleSupercritical CO2 extraction of 1-butanol and acetone from aqueous solutions using a hollow-fiber membrane contactor
Publication TypeJournal Article
Year of Publication2014
AuthorsMoreno, T., Tallon S.J., and Catchpole O.J.
JournalChemical Engineering and Technology
Pagination1861 - 1872
Date Published2014
ISSN09307516 (ISSN)
KeywordsAcetone, Acetone-butanol-ethanol fermentation, Biobutanol, Carbon dioxide, Extraction, Hollow fiber membrane contactors, Mass transfer, Mass transfer resistances, Membrane contactor, Pressure conditions, Solutions, Solvent-to-feed ratios, Supercritical CO
AbstractPorocritical extraction was applied to the separation of 1-butanol and acetone from aqueous solutions modeling a typical acetone-butanol-ethanol (ABE) fermentation broth. The efficiency of two lab-scale hollow-fiber membrane contactors of different was studied under various flow rates, solvent-to-feed ratios, and pressure conditions. Global and individual, i.e., tube side, membrane, and shell side mass transfer coefficients were determined. The main contribution to mass transfer resistance was found in the shell side in all cases, and experimentally determined shell side mass transfer coefficients were compared to values predicted by existing correlations. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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