Patent ID: 8476047
Filing Date: 2013-07-02
Classification: A23K,B01D,C07C,C11B,C12F,C12M,C12N,C12P,Y02E,Y02W

Abstract:
1. A method for producing a product alcohol comprising (a) providing biomass comprising fermentable sugars, oil, and undissolved solids; (b) liquefying the biomass to produce a feedstock slurry; (c) separating an amount of oil from the feedstock slurry; (d) hydrolyzing a portion of the remaining oil in the feedstock slurry of step (c) whereby the hydrolyzed oil forms an extractant; (e) combining the feedstock slurry and extractant of step (d) with a fermentation broth; and (f) fermenting the carbon source of the feedstock slurry to produce a product alcohol whereby the product alcohol is removed from the fermentation broth by partitioning into the extractant; wherein the partition coefficient of the extractant for the product alcohol is greater than the partition coefficient of the oil for the product alcohol.