Recovery of 2,3-butanediol from water by a solvent extraction and pervaporation separation scheme

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DOIResolve DOI: http://doi.org/10.1016/j.memsci.2008.12.033
AuthorSearch for: ; Search for:
TypeArticle
Journal titleJournal of Membrane Science
Volume329
Issue1-2
Pages160168; # of pages: 9
SubjectPervaporation; Solvent extraction; Integrated process
AbstractAn integrated separation scheme based on solvent extraction and pervaporation was proposed to recover 2,3-buthanediol from a synthetic fermentation broth. The selected extracting solvent 1-butanol was found to be more suitable than others. Polydimethylsiloxane membrane was employed to further enrich the 2,3-butanediol in the organic phase consisting of 2,3-butanediol, 1-butanol and water. Of the three species, water was found to be the most permeable in the membrane followed by 1-butanol, implying that concentration and purification of 2,3-butanediol as membrane retentate could be achieved by using the polydimethylsiloxane membrane alone. Two membrane batch operations, i.e., dehydration, and removal of 1-butanol using chitosan and polydimethylsiloxane composite membranes, respectively, were conducted to demonstrate the capability of the selected membranes for producing 2,3-butanediol with purities higher than 98 wt.%. And numerical simulation showed the viability of the membrane in continuous operation for the recovery of 2,3-buatendiol.
Publication date
PublisherElsevier
LanguageEnglish
AffiliationNRC Institute for Chemical Process and Environmental Technology (ICPET-ITPCE); National Research Council Canada
Access conditionavailable
unlimited
public
Peer reviewedYes
NRC number50987
NPARC number8934187
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Record identifierf6cbc2f7-a877-41bf-917c-5c89c9a60951
Record created2009-10-02
Record modified2016-05-09
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