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OwnerSarabjit S. Randhava, Richard L. Kao +2inventors
InventorsSarabjit S. Randhava, Richard L. Kao, Steven G. Calderone, Ajaib S. Randhava
Estimating the term…
A corn oil extraction process is disclosed. The process includes the recovery of corn oil and other co-products, including but not limited to steam, electric power and chemicals, from an ethanol production process and in particular, a process that involves dry corn milling methods. The process involves extraction of oil from milled corn and residues from the fermentation step, including thick stillage, distillers wet grain, distillers dry grain and distillers dry grains with solubles, by the application of an alkyl acetate, phase separation and recovery of the separated matter. A process of drying wet co-product using ethanol and carbon dioxide from the production facility is also disclosed.
A process for extracting corn oil from corn in an ethanol production process, the process comprising obtaining a corn-based product from the ethanol production process, application of an alkyl acetate solvent to the corn-based product to extract oil so as to produce an extraction solution of at least corn-based product solids, oil, solvent and water, separating the extraction solution into a first phase containing solvent and oil and a second phase containing at least one of water and solids, separating the first phase from the second phase and removing the solvent from the oil.
A process for production of co-products from an ethanol production facility comprising placing corn in a hammermill to produce a milled corn, transferring the milled corn into an extractor and blending the milled corn with an alkyl acetate solvent mixture to form a combined mixture for extracting an oil, separating the oil from the deoiled milled corn, removing the solvent mixture from the oil and deoiled milled corn and recycling the solvent mixture back into the extractor and transferring the deoiled milled corn to a fermentor to produce ethanol.
A process for production of co-products from an ethanol production facility comprising obtaining thick stillage from an ethanol fermentation unit, placing the thick stillage in a mixing unit with an alkyl acetate solvent mixture and blending to form a combined mixture for extracting an oil, allowing the combined mixture to settle into a first phase containing the solvent mixture and oil and a second phase containing deoiled thick stillage and water, separating the first phase and distilling the first phase to separate the oil from the solvent mixture and recycle the solvent mixture to the mixing unit, placing the second phase in a reboiler desorption unit to remove unseparated solvent for recycling, filtering the second phase containing deoiled thick stillage to produce deoiled distillers wet grains and deoiled thin stillage, concentrating the deoiled thin stillage to produce a retentate syrup and drying the combined syrup and deoiled distillers wet grains to produce oil free distillers dry grains with solubles.
A process for production of co-products from an ethanol production facility comprising obtaining distillers wet grain from a post fermentation process flow system, blending the distillers wet grain with an alkyl acetate solvent mixture to form a combined mixture for extracting an oil, allowing the combined mixture to settle into a first phase containing the solvent mixture and oil and a second phase containing deoiled distillers wet grain and water, separating the first phase and distilling the first phase to separate oil from the solvent mixture and recycle the solvent mixture, placing the second phase into a reboiler desorption unit to remove unseparated solvent for recycling, removing additional water content from the second phase and placing the deoiled, dewatered second phase into a combustion/boiler unit for the production of energy.
A process for production of co-products from an ethanol production facility comprising obtaining distillers dry grains with solubles from a post fermentation process flow system, blending the distillers dry grains with solubles with an alkyl acetate solvent mixture to form a combined mixture for extracting an oil, separating the oil from the solvent mixture and recycling the solvent mixture, removing the solvent remaining in the deoiled dry grains with solubles to produce oil free distillers dry grains with solubles and recycling the solvent remaining.
A process for drying a wet solid co-product containing an amount of moisture from an ethanol production process comprising obtaining an ethanol stream from the production process, converting the ethanol into an azeotrope, applying the ethanol azeotrope to the wet solid co-product to remove moisture and form an ethanol rich solid co-product, applying a stream of hot carbon dioxide gas from the ethanol production process to the ethanol rich solid co-product so as to remove ethanol from the solid co-product and form an ethanol-carbon dioxide stream, condensing the ethanol from the ethanol/carbon dioxide stream and recycling the carbon dioxide back into the production process, thereby leaving a dried solid co-product.
A system for removing oil from corn products prior to fermentation in an ethanol production facility comprising a hammermill for reducing whole corn to a milled corn and producing an output stream of milled corn;
A system for removing oil from a corn product post fermentation in an ethanol production facility comprising an extractor containing a solvent and in operable communication with a fermentor, wherein the extractor is capable of receipt of an output thick stillage stream from the fermentor and forming a solvent mixture;
A system for removing oil from a corn product post fermentation in an ethanol production facility comprising an extractor containing a solvent and in operable communication with a fermentor, wherein the extractor is capable of receipt of an output distillers wet grain stream from centrifuging of a thick stillage from the fermentor and forming a solvent mixture;
A system for removing oil from a corn product post fermentation in an ethanol production facility comprising an extractor containing a solvent and in operable communication with a fermentor, wherein the extractor is capable of receipt of an output distillers dried grains with solubles stream from the ethanol production facility and forming a solvent mixture;
Dependencies are inferred from the claim text.