Pretreatment process of lignocellulosic biomass
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United States of America Patent
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Jun 23, 2020
Grant Date -
Aug 24, 2017
app pub date -
Oct 1, 2015
filing date -
Oct 1, 2014
priority date (Note) -
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Abstract
The present invention relates to a pretreatment process of lignocellulosic biomass, comprising contacting lignocellulosic biomass with pretreatment solution in a temperature ranging from an ambient temperature to 100° C. and a pressure of at least 20 bars, wherein the pretreatment solution comprising water, water-miscible organic solvent and alkali having a concentration of 5 to 15% w/v if the alkali is solid or 5 to 15% v/v if the alkali is liquid. Said pretreatment process operates in mild condition or at low temperature to be specified with the removing of lignin but not destroying cellulose and increasing desired sugar yield.
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