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US 7,612,220 B2Granted
Carbon dioxide extraction of corn germ oil from corn germ
AssigneeMOR Technology, LLC
InventorsKenneth E. DeLine, Daniel L. Claycamp, Daniel Fetherston, Rodger T. Marentis
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Abstract
Supercritical carbon dioxide extraction of corn germ oil from corn germ utilizing extraction conditions adapted to a dry corn fractionation ethanol production process.
Claims13
A method of extracting an amount of corn oil from an amount of corn germ, comprising the steps of:
- a. locating an amount of corn germ in an extraction vessel;
- b. fluidicly engaging an amount of supercritical carbon dioxide with said amount of corn germ located in said extraction vessel, wherein said amount of supercritical carbon dioxide engaged with said amount of corn germ has a temperature maintained in a range of about 85° C. and about 120° C., and wherein said amount of supercritical carbon dioxide has a pressure maintained in a range of about 8500 psi and about 12,000 psi, and wherein said amount of supercritical carbon dioxide to said amount of corn germ has a ratio in a range of about 2 to about 6 to 1 (wt/wt);
- and
- c. extracting an amount of corn oil from said amount of corn germ with said amount of supercritical carbon dioxide said amount of corn oil comprising between about 18 weight percent to about 30 weight percent of said amount of corn germ.
1 more element
A method of extracting an amount of corn oil from an amount of corn germ, comprising the steps of:
- a. providing said amount of corn germ;
- b. fluidicly engaging an amount of supercritical carbon dioxide with said amount of corn germ at a ratio of not greater than about 5.0 to 1 (wt/wt);
- c. extracting said amount of corn oil from said amount of corn germ said amount of corn oil comprising between about 20 weight percent to about 30 weight percent of said amount of corn germ.
Dependencies are inferred from the claim text.