US 12,454,650 B2
Method for manufacture of a biomass-based diesel from feedstock including olefin oligomers
Ramin Abhari, Bixby, OK (US); and Martin Haverly, Ames, IA (US)
Assigned to Renewable Energy Group, Inc., Ames, IA (US)
Filed by Renewable Energy Group, Inc, Ames, IA (US)
Filed on Oct. 2, 2023, as Appl. No. 18/479,421.
Claims priority of provisional application 63/378,193, filed on Oct. 3, 2022.
Prior Publication US 2024/0124784 A1, Apr. 18, 2024
Int. Cl. C10G 50/00 (2006.01); C10G 3/00 (2006.01)
CPC C10G 3/50 (2013.01) [C10G 50/00 (2013.01); C10G 2300/1011 (2013.01); C10G 2300/304 (2013.01); C10G 2300/307 (2013.01); C10G 2400/04 (2013.01); C10G 2400/08 (2013.01)] 14 Claims
OG exemplary drawing
 
8. A method for producing a renewable diesel fuel, comprising the steps of;
a. combining a lipid with a hydrocarbon liquid to provide a combined feed;
b. subjecting the combined feed to hydrodeoxygenation and hydrogenation in a hydrodeoxygenation reactor to provide a reactor effluent comprising hydrocarbons, said hydrocarbons including a propane coproduct;
c. separating a C9-C24 hydrocarbon fraction from the reactor effluent;
d. subjecting the propane coproduct to dehydrogenation to produce a vapor stream having propylene and hydrogen; and
e. oligomerizing the propylene to produce iso-olefins;
wherein the C9-C24 hydrocarbon fraction has a derived cetane number of 49 or higher and the hydrocarbon liquid comprises the iso-olefins.