Patent ID: 7074603
Filing Date: 2006-07-11
Classification: B01D,C07C,C12P,Y02E,Y02P

Abstract:
1. A process for the production of ethanol from corn, comprising: a. conducting a yeast fermentation in a corn preparation to produce ethanol; b. distilling the ethanol from the yeast fermentation to produce a bottoms fraction; c. hydrolyzing the bottoms fraction; d. separating the hydrolyzed bottoms fraction into a solids fraction and a liquid hydrolyzate; e. culturing a homofermentative microorganism in the liquid hydrolyzate to produce acetate, acetic acid or mixtures thereof; f. chemically converting the acetate, acetic acid or mixtures thereof to an ester of acetic acid; and g. hydrogenating said acetic acid ester to said ethanol.