US 12,258,602 B2
System and method for producing a sugar stream with front end oil separation
Neal Jakel, Cedar Rapids, IA (US); and Albert Pollmeier, Cedar Rapids, IA (US)
Assigned to Fluid Quip Technologies, LLC, Springfield, OH (US)
Filed by Fluid Quip Technologies, LLC, Springfield, OH (US)
Filed on Oct. 31, 2022, as Appl. No. 18/051,032.
Application 18/051,032 is a division of application No. 15/921,783, filed on Mar. 15, 2018, granted, now 11,519,013.
Prior Publication US 2023/0079475 A1, Mar. 16, 2023
Int. Cl. C12P 19/02 (2006.01); A23L 7/104 (2016.01); A23L 29/30 (2016.01); B01D 3/14 (2006.01); B01D 37/00 (2006.01); C08L 3/02 (2006.01); C11C 1/10 (2006.01); C12C 5/00 (2006.01); C12C 11/07 (2006.01); C12M 1/00 (2006.01); C12P 19/14 (2006.01); C13K 1/06 (2006.01)
CPC C12P 19/02 (2013.01) [A23L 7/104 (2016.08); A23L 29/35 (2016.08); C08L 3/02 (2013.01); C11C 1/10 (2013.01); C12C 5/004 (2013.01); C12C 11/075 (2013.01); C12M 1/00 (2013.01); C12M 21/00 (2013.01); C12P 19/14 (2013.01); C13K 1/06 (2013.01); B01D 3/14 (2013.01); B01D 37/00 (2013.01); B01D 2257/70 (2013.01)] 10 Claims
 
1. A system for producing a sugar stream with front end oil separation, the system comprising:
a slurry tank in which ground grain particles mix with a liquid to produce a slurry including starch and free oil;
a liquefaction system that receives the slurry and provides a liquefied starch solution including the free oil, and whereat the starch converts to oligosaccharides;
an oil separation device that is situated after the liquefaction system and separates the free oil from the liquefied starch solution to yield an oil by-product;
a saccharification system that is situated after the oil separation device and that receives at least a portion of the liquefied starch solution after the free oil is separated, the saccharification system converts the oligosaccharides in a two-step conversion process to simple sugars thereby producing a saccharified stream including the simple sugars;
a first separation device that receives and separates, via microfiltration with screen openings sized from 0.1 to 100 microns, the saccharified stream into a first solids portion and a first liquid portion including the simple sugars, wherein the first liquid portion is a sugar stream having a dextrose equivalent of at least 20 DE and a total unfermentable solids fraction that is less than or equal to 30% of the total solids content, the first separation device situated prior to any sugar conversion device that receives and processes the simple sugars to produce a biochemical,
a fermentation device and a distillation device that receives the first solids portion to produce an alcohol; and
one of a carbon filtration device, an ion exchange device, or an evaporator that separately receives the sugar stream to subject the sugar stream to carbon filtration, ion exchange, or evaporation followed by a sugar conversion device that receives the sugar stream from the carbon filtration device, the ion exchange device, or the evaporator to produce the biochemical, which remains separate from the alcohol produced from the fermentation device.