METHOD FOR PRETREATMENT OF CELLULOSE FOR FERMENTATION IN AN AQUEOUS ENVIRONMENT
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United States of America Patent
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Issued Date -
Jun 13, 2013
app pub date -
Dec 5, 2012
filing date -
Dec 7, 2011
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Abandoned
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Abstract
A method for pretreating cellulose for fermentation in an aqueous environment comprises the steps of: grinding a biomass to reduce its particle size, adding water to the ground biomass to create a slurry, soaking the slurry, heating the slurry at a first pressure greater than atmospheric pressure, reducing the pressure of the slurry, reducing the temperature of the slurry, determining whether the enzymes used require preliminary enzymatic hydrolysis, and performing preliminary enzymatic hydrolysis on the slurry if the enzymes used require preliminary enzymatic hydrolysis.
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