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Steam explosion lignins; their extraction, structure and potential as feedstock for biodiesel and chemicals
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Wood Chemistry and Pulp Technology.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology, Wood Chemistry and Pulp Technology.
2009 (English)In: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 100, no 9, 2556-2561 p.Article in journal (Refereed) Published
Abstract [en]

In the present study, a steam explosion wood pre-treatment process, optimized earlier with respect to ethanol production, has been applied to both softwoods (Picea abies and Pinus sylvestris) and hardwoods (Betula verrucosa and Populus tremula). The alkaline extractable lignins have then been isolated to investigate lignin separation efficiency and lignin structure and to evaluate their potential for producing value-added products, such as biodiesel components or chemicals, in terms of the purity, molecular size, functional groups, beta-O-4' inter-unit linkage content, and degradability in a subsequent processing treatment. The mechanism of lignin modification and possible improvements to the steam explosion pre-treatment process are discussed.

Place, publisher, year, edition, pages
2009. Vol. 100, no 9, 2556-2561 p.
Keyword [en]
Lignin, Steam explosion, SO2-impregnation, Degradability, Thioacidolysis, assisted biomass fractionation, lignocellulosics, degradation, ethanol, wood
Identifiers
URN: urn:nbn:se:kth:diva-18232DOI: 10.1016/j.biortech.2008.12.004ISI: 000264041200015Scopus ID: 2-s2.0-59649112133OAI: oai:DiVA.org:kth-18232DiVA: diva2:336278
Note
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2011-01-12Bibliographically approved

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