US 12,486,522 B2
Systems and methods for producing a sugar stream
Neal Jakel, Cedar Rapids, IA (US); John Kwik, Bellbrook, OH (US); Michael Franko, Denver, CO (US); and Andrew Whalen, Cincinnati, OH (US)
Assigned to Fluid Quip Technologies, LLC, Springfield, OH (US)
Filed by Fluid Quip Process Technologies, LLC, Springfield, OH (US)
Filed on Mar. 3, 2023, as Appl. No. 18/177,995.
Application 17/346,411 is a division of application No. 16/026,493, filed on Jul. 3, 2018, granted, now 11,034,987, issued on Jun. 15, 2021.
Application 15/230,280 is a division of application No. 15/074,417, filed on Mar. 18, 2016, granted, now 9,777,303, issued on Oct. 3, 2017.
Application 18/177,995 is a continuation of application No. 17/346,411, filed on Jun. 14, 2021, granted, now 11,597,955.
Application 16/026,493 is a continuation of application No. 15/230,280, filed on Aug. 5, 2016, granted, now 10,119,157, issued on Nov. 6, 2018.
Claims priority of provisional application 62/196,108, filed on Jul. 23, 2015.
Prior Publication US 2023/0203552 A1, Jun. 29, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C12P 19/02 (2006.01); C12M 1/00 (2006.01); C12M 1/33 (2006.01); C12P 7/06 (2006.01); C12P 7/10 (2006.01); C12P 19/14 (2006.01); C13K 1/06 (2006.01)
CPC C12P 19/02 (2013.01) [C12M 21/12 (2013.01); C12M 23/58 (2013.01); C12M 29/04 (2013.01); C12M 45/02 (2013.01); C12M 45/09 (2013.01); C12M 47/10 (2013.01); C12P 7/06 (2013.01); C12P 7/10 (2013.01); C12P 19/14 (2013.01); C13K 1/06 (2013.01); C12P 2203/00 (2013.01); Y02E 50/10 (2013.01); Y02E 50/30 (2013.01)] 14 Claims
 
1. A method for producing a sugar stream comprising:
mixing ground grain and/or grain components with a liquid to produce a slurry including starch and unfermentable components;
subjecting the slurry to liquefaction optionally followed by saccharification to reduce at least a portion of the starch to sugars and produce a stream including the sugars and unfermentable components;
directly after liquefaction or optional saccharification, separating the stream, via particle sizes with a paddle screen, into a solids portion including unfermentable components and a liquid portion including the sugars, followed by optionally separating out free oil from the liquid portion, followed by separating out residual protein from the liquid portion, via density with a centrifuge, and thereafter microfiltering the liquid portion to filter out additional insoluble components, wherein the liquid portion, after microfiltering, defines a sugar stream that remains separate from the solids portion; and
subjecting the sugar stream, which remains separate from the solids portion, to a sugar utilization process to produce a biofuel and/or biochemical.