US 11,970,664 B2
Methods and systems for enhancing processing of hydrocarbons in a fluid catalytic cracking unit using a renewable additive
Nikolas A. Larsen, Findlay, OH (US); Jeffrey A. Sexton, Findlay, OH (US); and Ray Brooks, Findlay, OH (US)
Assigned to MARATHON PETROLEUM COMPANY LP, Findlay, OH (US)
Filed by MARATHON PETROLEUM COMPANY LP, Findlay, OH (US)
Filed on May 8, 2023, as Appl. No. 18/144,298.
Application 18/144,298 is a continuation of application No. 18/045,314, filed on Oct. 10, 2022, granted, now 11,692,141.
Claims priority of provisional application 63/262,342, filed on Oct. 10, 2021.
Prior Publication US 2023/0272290 A1, Aug. 31, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C10G 11/18 (2006.01); B01J 8/18 (2006.01); B01J 8/24 (2006.01); B01J 38/02 (2006.01)
CPC C10G 11/182 (2013.01) [B01J 8/1809 (2013.01); B01J 8/1836 (2013.01); B01J 8/24 (2013.01); B01J 38/02 (2013.01); C10G 11/187 (2013.01); B01J 2208/00017 (2013.01); C10G 2300/1011 (2013.01); C10G 2300/202 (2013.01); C10G 2300/4006 (2013.01); C10G 2300/4081 (2013.01); C10G 2300/708 (2013.01)] 29 Claims
OG exemplary drawing
 
1. A system for processing a gas oil in a fluid catalytic cracking (FCC) unit, the system comprising:
a reactor having (i) a reactor inlet, (ii) an FCC reaction zone operable to crack a gas oil stream received via the reactor inlet in presence of steam and an FCC catalyst, thereby to form a plurality of FCC products and coked FCC catalyst when in operation, (iii) a separation zone to separate the plurality of FCC products from the coked FCC catalyst, (iii) a first outlet to remove the plurality of FCC products from the reactor, and (iv) a second outlet;
a regenerator in fluid communication with the second outlet of the reactor, the regenerator having a first regenerator inlet to receive at least oxygen, a second regenerator inlet in fluid communication with a biomass-derived pyrolysis oil, a first regenerator outlet in fluid communication with the reactor to supply a regenerated FCC catalyst to the reactor, and a second regenerator outlet positioned to discharge a flue gas from the regenerator, the regenerator being operable to oxidize coke on the coked FCC catalyst and the biomass-derived pyrolysis oil, thereby to produce the regenerated FCC catalyst and the flue gas; and
a controller configured to adjust an amount of the biomass-derived pyrolysis oil supplied to the regenerator based on an indication of a temperature within the system, thereby to maintain sufficient temperatures within the system to crack the gas oil stream in the FCC reaction zone and to oxidize the coke in the regenerator.