METHOD AND SYSTEM FOR INCREASING OIL YIELD FROM A WHOLE STILLAGE BYPRODUCT PRODUCED IN A CORN DRYMILLING PROCESS
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United States of America
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Issued Date -
Nov 14, 2024
app pub date -
May 8, 2024
filing date -
May 8, 2024
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Abstract
A method for increasing oil yield from a whole stillage byproduct produced in a corn dry-milling process for making alcohol (e.g., ethanol) and/or other biofuels/biochemicals and a system therefor is disclosed. In one embodiment, the method includes separating the whole stillage byproduct into an insoluble solids portion and a thin stillage portion. Thereafter, the thin stillage portion can be separated into a water-soluble solids portion, which includes oil, and a protein portion. Oil can be recovered from the water-soluble solids portion. In one example, to break oil in water emulsions in the water-soluble solids portion and increase the oil yield, a treated portion of the recovered oil, which may be heated, may be re-introduced/recycled to the water-soluble solids portion prior to the oil recovery.
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