SORBENT AND PROCESS FOR REMOVING FERMENTATION INHIBITORS
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United States of America Patent
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Issued Date -
Nov 12, 2015
app pub date -
May 9, 2014
filing date -
Nov 29, 2010
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Abandoned
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Abstract
The invention pertains to, for example, an improved sorbent and process for removing fermentation inhibitors such as furfural and/or HMF in microbial processes utilizing fermentable sugars obtained from biomass including, for example, in the production of bioalcohols. The sorbent is capable of separating one or more inhibitors from monosaccharides and is characterized by: (1) a Ksugar partition coefficient of less than about 5 and (2) one or more of the following characteristics: (a) a furfural sorption capacity of at least about 200 mg/g sorbent at a furfural solution concentration of 2.5 grams per liter of water; (b) an Mt/M∞ of at least about 0.9 at 7.5 sec1/2; and (c) a Kfurfural partition coefficient of greater than about 3000.
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