Solvent extraction of oil from distillers dried grains and methods of using extraction products
AssigneeNovita Nutrition, LLC
InventorsKeith Bruinsma, Donald Endres, Steven J. Furcich
Life of this patent
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Abstract
A process for extraction of crude oil from distillers dried grain solubles and/or distillers dried grains using a solvent extraction process and producing corn distillers meal that may be used as an animal feed supplement is disclosed. The corn distillers meal may be used as a crude protein supplement for use in a livestock feed diet, poultry feed diet, aquatic feed diet or the like. The solvent extracted crude oil may be suitable for other processes, including oleochemical processing for personal care and home care products, biodiesel production, and/or renewable diesel production from hydro-treating the extracted oil to make green diesel fuel.
Claims20
A method of producing a renewable diesel fuel, the method comprising:
- providing a co-product derived from a corn mash of a dry-grind ethanol process, the co-product comprising corn distillers dried grains with solubles, corn distillers dried grains, or a combination thereof;
- solvent extracting the co-product to produce crude corn oil, the crude corn oil comprising free fatty acids in an amount no more than about 15% by weight of the crude corn oil, crude protein in an amount no more than about 1% by weight of the crude corn oil, nitrogen in an amount no more than about 0.5% by weight of the crude corn oil, and phosphorous in an amount no more than about 50 ppm;
- and
- subjecting the crude corn oil to a conversion process to produce the renewable diesel fuel.
Dependencies are inferred from the claim text.