CPC C11B 13/00 (2013.01) [A23K 10/38 (2016.05); A23K 50/00 (2016.05); A23L 7/198 (2016.08); B02C 9/04 (2013.01); B04B 3/04 (2013.01); B04B 5/10 (2013.01); C12F 3/10 (2013.01); A23V 2002/00 (2013.01); B04B 2001/205 (2013.01); Y02P 60/87 (2015.11); Y02W 30/74 (2015.05)] | 23 Claims |
1. A method for recovering oil from a whole stillage byproduct comprising:
separating a whole stillage byproduct, via particle size, into a first insoluble solids portion, which includes fiber, and a first liquid portion, which includes free oil and protein;
thereafter, separating the first insoluble solids portion, via particle size, into a second liquid portion and a second insoluble solids portion, which includes the fiber, followed by dewatering the second insoluble solids portion, via weight, to produce a dewatered insoluble solids portion defining a wet cake, which includes the fiber;
combining the first and second liquid portions together to define a combined liquid portion, which includes the free oil and protein;
separating the combined liquid portion, via weight, into a lighter water soluble solids portion, which includes the free oil, and a heavier solids portion, which includes the protein; and
thereafter, separating the free oil from the water soluble solids portion, via weight, to provide an oil portion.
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