BOKU - Universität für Bodenkultur Wien - Forschungsinformationssystem
Gewählte Publikation:
Schrems, M; Brandt, A; Welton, T; Liebner, F; Rosenau, T; Potthast, A.
(2011):
Ionic liquids as media for biomass processing: opportunities and restrictions
HOLZFORSCHUNG. HOLZFORSCHUNG; 65: 527-533.
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- Abstract:
- The present study provides insight into the dissolution behavior of renewable materials in ionic liquids. Beech, spruce and rye straw were dissolved in 1-ethyl-3-methylimidazolium acetate as the ionic liquid of choice, which is currently one of the most frequently used cation-anion combinations among ionic liquids for biomaterial processing. The dissolution was followed by selective precipitation of cellulose, hemicelluloses, and lignin. The obtained lignin was analyzed with Curie-point pyrolysis gas chromatography/mass spectrometry (Cu-Py-GC/MS) and the separated cellulose/hemicellulose fractions with gel permeation chromatography (GPC). Time dependence of the dissolution process was studied on rye straw, eucalyptus kraft pulp and beech sulfite pulp. The results show a changing dissolution profile over time, which is due to progressing degradation of the cellulose in the ionic liquid.
- Autor*innen der BOKU Wien:
- Liebner Falk
- Potthast Antje
- Rosenau Thomas
- Schrems Michael
- Find related publications in this database (Keywords)
- cellulose
- cellulose degradation
- Curie-point pyrolysis gas chromatography/mass spectrometry (Cu-Py-GC/MS)
- fractionation
- ionic liquids (ILs)
- lignin
- molecular weight distribution (MWD)
- renewable materials
- size-exclusion chromatography (SEC)
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