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Issue 4, 2012
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Soaking of pine wood chips with ionic liquids for reduced energy input during grinding

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Abstract

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.

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

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Publication details

The article was received on 06 Jun 2011, accepted on 18 Jan 2012 and first published on 27 Feb 2012


Article type: Paper
DOI: 10.1039/C2GC15663F
Citation: Green Chem., 2012,14, 1079-1085
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    Soaking of pine wood chips with ionic liquids for reduced energy input during grinding

    A. Brandt, J. K. Erickson, J. P. Hallett, R. J. Murphy, A. Potthast, M. J. Ray, T. Rosenau, M. Schrems and T. Welton, Green Chem., 2012, 14, 1079
    DOI: 10.1039/C2GC15663F

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