Systems and methods for stillage fractionation

The system of claim 1, wherein the second separator is configured to separate at least 1.33 pounds of oil from the whole stillage generated from processing a bushel of corn for ethanol.

• The system of claim 1, wherein the evaporator is further configured to condense the clarified stillage to at least 60% solids.
• The system of claim 1, wherein the second dryer is further configured to dry the protein paste to generate the high protein animal feed product with at least 45% protein.
• The system of claim 1, wherein the second separator is further configured to separate oil with at least 97% fat.
• The system of claim 7, wherein the second separator is further configured to separate oil with less than 1% w/w moisture content and less than 1% w/w insolubles.
• The system of claim 7, wherein the second separator is further configured to separate oil with less than 5% w/w free fatty acid content.
• The system of claim 1, wherein the three phase separator is a disk nozzle centrifuge, and wherein the first separator is a screening centrifuge.
• A method for fractionating stillage comprising:
• separating whole stillage to a solid portion and a thin stillage liquid portion, wherein the solid portion includes a high fiber wet cake;
• separating the whole stillage into a clarified stillage, an oil emulsion, and a protein paste;
• drying the high fiber wet cake to generate a high fiber animal feed product;
• drying the protein paste to generate a high protein animal feed product;
• condensing the clarified stillage to generate a syrup;
• and
• separating oil from the oil emulsion.
• The method of claim 11, further comprising adjusting pH of the oil emulsion prior to separating the oil.
• The method of claim 12, wherein the adjusting comprises adjusting pH of the oil emulsion to about 8.0 to about 8.5.
• The method of claim 11, wherein at least around 1.33 pounds of oil is separated from the whole stillage generated from processing a bushel of corn for ethanol.
• The method of claim 11, further comprising combining at least some portion of the protein paste with the high fiber wet cake.
• The method of claim 11, wherein the condensing comprises condensing the syrup to at least about 60% solids.
• The method of claim 11, wherein the high protein animal feed product comprises at least about 45% protein.

A high solid syrup product, comprising:

• between about 30% and about 40% moisture;
• greater than about 10% protein;
• less than about 1% fiber;
• between about 6% and about 10% fat;
• and
• between about 5% to about 7% ash.