Method and system for extraction of oil from corn
AssigneeThe Board of Trustees of the University of Illinois
InventorMunir Cheryan
Life of this patent
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Abstract
A process for removing oil from an agricultural substrate, including a dry grind corn. An ethanol solution with a concentration in the range of from about 90% to about 100% ethanol is mixed with the dry grind corn in a ratio of from about 10:1 to about 1:1 to form an extraction solution including the ethanol solution, oil, and corn solids. The extraction solution is separated into the corn solids and a filtrate, the filtrate including the ethanol solution and oil. The filtrate is membrane filtered, including nanofiltration, to restrain an oil concentrate from the filtrate and pass a permeate of the ethanol solution. The oil contained within the oil concentrate is purified.
Claims15
A process for removing oil from an agricultural substrate, including a dry grind corn, the process comprising:
- mixing an ethanol solution comprising ethanol and water with a concentration in the range of from about 90% to about 100% ethanol with the dry grind corn in a ratio of from about 10:1 to about 1:1 to form an extraction solution including the ethanol solution, oil, and corn solids;
- separating the extraction solution into the corn solids and a filtrate, the filtrate including the ethanol solution and oil;
- membrane filtering the filtrate to restrain an oil concentrate from the filtrate and passing a permeate of the ethanol solution, said membrane filtering including nanofiltration;
- and,
- purifying the oil contained within the oil concentrate.
Dependencies are inferred from the claim text.