Process for protein enrichment of dried distillers grains using a tribo-electrostatic separator device
AssigneeST Equipment & Technology LLC
InventorsNatsuki Barber, Kyle P. Flynn, Abhishek Gupta
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Abstract
A tribo-electrostatic separation process for fractionating a feed mixture derived from dried distiller's grains (DDG) or distiller's dried grains and mixed with solubles (DDGS) is disclosed.
Claims25
A process for fractionating a feed mixture derived from dried distiller's grains (DDG) or distiller's dried grains and mixed with solubles (DDGS) using a single-step tribo-electrostatic separation process, comprising:
- a. drying the DDG or DDGS feed mixture
- b. milling the DDG or DDGS feed mixture to a median particle size of 225-250 microns;
- c. supplying said milled DDG or DDGS feed mixture to a tribo-electrostatic separator;
- and
- d. simultaneously tribo-electrically charging and separating said DDG or DDGS feed mixture into at least two subfractions, with one of the subfractions having a protein composition higher than the DDG or DDGS feed mixture.
A process for fractionating a feed mixture derived from dried distiller's grains (DDG) or distiller's dried grains and mixed with solubles (DDGS) using a single-step tribo-electrostatic separation process, comprising:
- a. milling the DDG or DDGS feed mixture to a median particle size of less than 150 microns;
- b. supplying said milled DDG or DDGS feed mixture to a tribo-electrostatic separator;
- and
- c. simultaneously tribo-electrically charging and separating said DDG or DDGS feed mixture into at least two subfractions, with one of the subfractions having a protein composition higher than the DDG or DDGS feed mixture;
- and
- wherein the milled DDG or DDGS feed mixture need not be dried.
Dependencies are inferred from the claim text.