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Integrated experimental and technoeconomic evaluation of two-stage Cu-catalyzed alkaline–oxidative pretreatment of hybrid poplar
DOE Great Lakes Bioenergy Research Center, Michigan State University East Lansing.
DOE Great Lakes Bioenergy Research Center, Michigan State University, East Lansing.
DOE Great Lakes Bioenergy Research Center, Michigan State University, East Lansing.
DOE Great Lakes Bioenergy Research Center, Michigan State University, East Lansing.
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2018 (English)In: Biotechnology for Biofuels, ISSN 1754-6834, E-ISSN 1754-6834, Vol. 11, no 1, article id 143Article in journal (Refereed) Published
Abstract [en]

When applied to recalcitrant lignocellulosic feedstocks, multi-stage pretreatments can provide more processing flexibility to optimize or balance process outcomes such as increasing delignification, preserving hemicellulose, and maximizing enzymatic hydrolysis yields. We previously reported that adding an alkaline pre-extraction step to a copper-catalyzed alkaline hydrogen peroxide (Cu-AHP) pretreatment process resulted in improved sugar yields, but the process still utilized relatively high chemical inputs (catalyst and H2O2) and enzyme loadings. We hypothesized that by increasing the temperature of the alkaline pre-extraction step in water or ethanol, we could reduce the inputs required during Cu-AHP pretreatment and enzymatic hydrolysis without significant loss in sugar yield. We also performed technoeconomic analysis to determine if ethanol or water was the more cost-effective solvent during alkaline pre-extraction and if the expense associated with increasing the temperature was economically justified.

Place, publisher, year, edition, pages
Springer, 2018. Vol. 11, no 1, article id 143
National Category
Bioprocess Technology
Research subject
Biochemical Process Engineering
Identifiers
URN: urn:nbn:se:ltu:diva-68774DOI: 10.1186/s13068-018-1124-xISI: 000433135800002Scopus ID: 2-s2.0-85047532790OAI: oai:DiVA.org:ltu-68774DiVA, id: diva2:1206613
Note

Validerad;2018;Nivå 2;2018-05-17 (andbra)

Available from: 2018-05-17 Created: 2018-05-17 Last updated: 2018-06-14Bibliographically approved

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