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Economics of Germ Preseparation for Dry‐Grind Ethanol Facilities
Author(s) -
Singh V.,
Eckhoff S. R.
Publication year - 1997
Publication title -
cereal chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.558
H-Index - 100
eISSN - 1943-3638
pISSN - 0009-0352
DOI - 10.1094/cchem.1997.74.4.462
Subject(s) - grind , germ , chemistry , coproduct , ethanol , ethanol fuel , fermentation , wet milling , germ theory of disease , food science , process (computing) , pulp and paper industry , wheat germ , microbiology and biotechnology , biochemistry , mathematics , organic chemistry , engineering , biology , mechanical engineering , mathematical analysis , grinding , computer science , pure mathematics , operating system
A detailed economic analysis of a 914 tonnes/day (36,000 bu/day) “Quick Germ” ethanol process was performed. The Quick Germ ethanol process is a combination of a dry‐grind and a wet‐milling ethanol process. The Quick Germ ethanol process increases the coproduct value in the dry‐grind ethanol process by recovering germ before fermentation. Germ is recovered using the conventional wet‐milling degermination process. Economic assessment of the Quick Germ process proved profitable. The savings achieved by recovering germ as a coproduct and by increasing the fermentor capacity due to removal of nonfermentables from the corn mash will reduce the manufacturing cost of ethanol by 2.69 ¢/L (10.19 ¢/gal or $0.265/bu) when compared to the conventional dry‐grind ethanol process.