US 12,215,304 B2
Integrated ethanol and pretreatment facility
Scott D. Kohl, Maize, KS (US); Rana K. Mohamed, Austin, TX (US); and Wade Gossett, Buda, TX (US)
Assigned to CHEMTOR, LP, Lockhart, TX (US)
Filed by CHEMTOR, LP, Lockhart, TX (US)
Filed on Apr. 24, 2023, as Appl. No. 18/305,805.
Application 18/305,805 is a continuation of application No. PCT/US2021/071962, filed on Oct. 21, 2021.
Claims priority of provisional application 63/104,354, filed on Oct. 22, 2020.
Prior Publication US 2023/0357678 A1, Nov. 9, 2023
Int. Cl. C12F 3/06 (2006.01); C07C 29/74 (2006.01); C07C 31/08 (2006.01); C10G 3/00 (2006.01)
CPC C12F 3/06 (2013.01) [C10G 3/60 (2013.01); C10G 2300/1014 (2013.01); C10G 2300/1055 (2013.01); C10G 2400/04 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for co-production of ethanol and pretreatment of a diesel feedstock, comprising:
distilling an ethanol-containing beer within a distillation apparatus of an ethanol plant using grain as a feedstock;
producing ethanol and a crude vegetable oil product in the ethanol plant;
directing the crude vegetable oil product from the ethanol plant to a pretreatment plant comprising a fiber reactor comprising a conduit having a plurality of fibers disposed therein;
in the pretreatment plant, purifying the crude vegetable oil product by contacting the crude vegetable oil product with an aqueous extractant solution within the fiber reactor to produce a purified oil and wastewater, wherein the aqueous extractant solution consists of water or purified water; and
recycling the wastewater from the pretreatment plant to the ethanol plant;
wherein purifying the crude vegetable oil removes 70% or more of impurities.