Inventors:
Patrick Joseph Hirl - Minnetonka MN, US
Assignee:
Stanley Consultants, Inc. - Muscatine IA
International Classification:
C02F 3/00
C12P 1/00
C12P 7/00
C12P 7/02
C12P 7/06
US Classification:
210603, 210606, 435 41, 435132, 435155, 435161
Abstract:
The present invention is directed to a process for the production of ethanol and energy. The process includes the steps of fermenting a corn mash in an aqueous medium to produce a beer. Next, the beer is distilled to produce ethanol and a whole stillage. The whole stillage is anaerobically digested to produce a biogas and a residue. The biogas is combusted to produce electricity and steam. The electricity and steam are used during the fermentation and distillation process. The residue may further be separated into a liquid fertilizer and top soil residue.