Soaking of pine wood chips with ionic liquids for reduced energy input during grinding

Ionic liquids are of great interest as potential solvents/catalysts for the production of fuels and chemicals from lignocellulosic biomass. Attention has focused particularly on the pretreatment of lignocellulose to make the cellulose more accessible to enzymatic hydrolysis. Any biomass processing r...

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Bibliographic Details
Published in:Green chemistry : an international journal and green chemistry resource : GC 2012-01, Vol.14 (4), p.1079-1085
Main Authors: BRANDT, Agnieszka, ERICKSON, James K, HALLETT, Jason P, MURPHY, Richard J, POTTHAST, Antje, RAY, Michael J, ROSENAU, Thomas, SCHREMS, Michael, WELTON, Tom
Format: Article
Language:English
Subjects:
Applied sciences
Biomass
Catalysis
Catalysts: preparations and properties
Chemistry
Energy
Exact sciences and technology
General and physical chemistry
Natural energy
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:Ionic liquids are of great interest as potential solvents/catalysts for the production of fuels and chemicals from lignocellulosic biomass. Attention has focused particularly on the pretreatment of lignocellulose to make the cellulose more accessible to enzymatic hydrolysis. Any biomass processing requires a reduction in the size of the harvested biomass by chipping and/or grinding to make it more amenable to chemical and biological treatments. This paper demonstrates that significant energy savings can be achieved in the grinding of pine wood chips when the ionic liquid is added before the grinding operation. We show that this is due to the lubricating properties of the ionic liquids and not to physico-chemical modifications of the biomass. A brief impregnation of the chipped biomass results in higher savings than a longer treatment.
ISSN:1463-9262
1463-9270
DOI:10.1039/c2gc15663f