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Enhancement of ethanol production from spruce wood chips by ionic liquid pretreatment
University of Borås, School of Engineering. (Biotechnology)ORCID iD: 0000-0003-4887-2433
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2013 (English)In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 102, 163-169 p.Article in journal (Refereed) Published
Sustainable development
The content falls within the scope of Sustainable Development
Abstract [en]

Pretreatment with three green cellulose solvents, N-methylmorpholine-N-oxide (NMMO), 1-ethyl-3-methylimidazolium acetate ([EMIM][OAc]), and 1-butyl-3-methylimidazolium acetate ([BMIM][OAc]) were used for improvement of ethanol production. Spruce chips and powder were pretreated at 120 °C for 1, 3, and 15 h. In order to investigate the efficiency of the pretreatments, the pretreated materials were subjected to enzymatic hydrolysis at 45 °C for 72 h, followed by fermentation with Saccharomyces cerevisiae at 32 °C for 24 h. The best results were obtained from 15 h pretreatment with [EMIM][OAc]. The ethanol yield from the untreated spruce chips and powder were 2.7% and 9.7% of the maximum theoretical yield, respectively, whereas pretreatment of these materials with [EMIM][OAc] improved the ethanol yield to 66.8% and 81.5%, respectively.

Place, publisher, year, edition, pages
Elsevier , 2013. Vol. 102, 163-169 p.
Keyword [en]
Resource Recovery
National Category
Industrial Biotechnology
Research subject
Resource Recovery
Identifiers
URN: urn:nbn:se:hb:diva-1398DOI: 10.1016/j.apenergy.2012.05.060ISI: 000314190800019Local ID: 2320/11678OAI: oai:DiVA.org:hb-1398DiVA: diva2:869453
Available from: 2015-11-13 Created: 2015-11-13 Last updated: 2016-07-14Bibliographically approved

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CiteExportLink to record
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