US 12,152,202 B2
FCC processing with reduced CO2 emissions
Colin Lee Beswick, Lebanon, NJ (US); Bing Du, Annandale, NJ (US); Daniel J. Garcia, Annandale, NJ (US); Hyung Rae Kim, Basking Ridge, NJ (US); Prateek Mehta, Annandale, NJ (US); Arun K. Sharma, Hellertown, PA (US); Xiaochun Xu, Annandale, NJ (US); Masaaki Sugita, Woodlands, TX (US); William J. Knaeble, Annandale, NJ (US); and Zhiyan Wang, Woodlands, TX (US)
Assigned to EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY, Spring, TX (US); and Petrochemical Research Institute, Lanzhou (CN)
Filed by EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY, Annandale, NJ (US); and Petrochemical Research Institute, Lanzhou (CN)
Filed on Dec. 29, 2022, as Appl. No. 18/091,127.
Prior Publication US 2024/0218264 A1, Jul. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C10G 11/00 (2006.01); C10G 11/18 (2006.01)
CPC C10G 11/182 (2013.01) [C10G 11/187 (2013.01); C10G 2300/1011 (2013.01); C10G 2300/1074 (2013.01); C10G 2300/202 (2013.01); C10G 2300/4006 (2013.01); C10G 2300/4043 (2013.01); C10G 2300/708 (2013.01); C10G 2400/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for operating a fluid catalytic cracking reaction system, comprising:
exposing a hydrocarbonaceous feed to a catalyst in a reactor under fluid catalytic cracking conditions comprising a temperature of 535° C. or less and 20 wt % to 65 wt % conversion of compounds with boiling points of more than 221° C. to compounds with boiling points of 221° C. or less, to form one or more liquid products and coke associated with the catalyst, the one or more liquid products comprising 25 wt % or more of a diesel boiling range fraction relative to a weight of the hydrocarbonaceous feed;
passing at least a portion of the catalyst and the associated coke into a regenerator;
passing a supplemental fuel into the regenerator, a vessel associated with the regenerator, or a combination thereof, a ratio of an adjusted weight of a low carbon intensity fraction of the supplemental fuel to a weight of the associated coke being 0.01 or more;
combusting, in the regenerator, the vessel associated with the regenerator, or the combination thereof, at least a portion of the associated coke and at least a portion of the supplemental fuel to form at least heated catalyst and CO2; and
passing at least a portion of the heated catalyst into the reactor.