Cellulose-solvent-based lignocellulose fractionation with modest reaction conditions and reagent cycling
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United States of America Patent
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May 30, 2017
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Jul 10, 2014
app pub date -
Mar 19, 2014
filing date -
Mar 29, 2006
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Abstract
Embodiments of the present invention overcome the well-known recalcitrance of lignocellulosic biomass in an economically viable manner. A process and system are provided for the efficient fractionation of lignocellulosic biomass into cellulose, hemicellulose sugars, lignin, and acetic acid. The cellulose thus obtained is highly amorphous and can be readily converted into glucose using known methods. Fermentable hemicellulose sugars, low-molecular-weight lignin, and purified acetic acid are also major products of the process and system. The modest process conditions and low solvent/solid ratios of some embodiments of the invention imply relatively low capital and processing costs.
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