Liquid purification or separation – Processes – Treatment by living organism
Reexamination Certificate
2006-11-21
2009-10-20
Lankford, L Blaine (Department: 1651)
Liquid purification or separation
Processes
Treatment by living organism
C210S606000, C435S041000, C435S132000, C435S155000, C435S161000
Reexamination Certificate
active
07604743
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.
REFERENCES:
patent: 6299774 (2001-10-01), Ainsworth et al.
U. Tegtmeier “Process Design for Energy Saving Ethanol Production” Biotechnology Letters vol. 7 No. 2 129-134 (1985).
Superiorpeat.com “Peat Moss” http://www.superiorpeat.com/products.htm, copyright 2003.
Answers.com “Biogas” http://www.answers.com/topic/biogas accessed Jul. 24, 2009.
Hanrath James P.
Lankford L Blaine
Sacharoff Adam K.
Stanley Consultants, Inc.
Underdahl Thane
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