Production of fermentable sugars and lignin from biomass using supercritical fluids
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United States of America Patent
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Dec 8, 2020
Grant Date -
Dec 13, 2018
app pub date -
Aug 17, 2018
filing date -
Jan 19, 2010
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Abstract
Methods are disclosed for the continuous treatment of biomass comprising a pretreatment step, wherein said biomass is contacted with a first supercritical, near-critical, or sub-critical fluid to form a solid matrix and a first liquid fraction; and a hydrolysis step, wherein said solid matrix formed in said pretreatment step is contacted with a second supercritical or near-supercritical fluid to produce a second liquid fraction and an insoluble lignin-containing fraction. Also disclosed are apparatuses for the continuous conversion of biomass comprising a pretreatment reactor and a hydrolysis reactor associated with said pretreatment reactor.
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