US 11,939,539 B1
Multi-zone catalytic cracking of crude oils
Mansour Ali Al-Herz, Al-Ahsa (SA); Ali Al Jawad, Al-Qatif (SA); Qi Xu, Dhahran (SA); Aaron Akah, Dhahran (SA); and Musaed Salem Al-Ghrami, Dammam (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Jun. 9, 2023, as Appl. No. 18/332,014.
This patent is subject to a terminal disclaimer.
Int. Cl. C10G 67/14 (2006.01)
CPC C10G 67/14 (2013.01) [C10G 2300/202 (2013.01); C10G 2300/205 (2013.01); C10G 2300/301 (2013.01); C10G 2300/308 (2013.01); C10G 2300/4006 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of processing a hydrocarbon feed comprising
fractionating the hydrocarbon feed into a light stream and a heavy stream, wherein the light stream comprises hydrocarbons boiling at less than 343° C. and the heavy stream comprises hydrocarbons boiling at greater than 343° C.;
hydrotreating the heavy stream to form a hydrotreated heavy stream;
combining the light stream and the hydrotreated heavy stream to form an upgraded feed stream;
feeding the upgraded feed stream to a single Fluid Catalytic Cracking (FCC) reaction zone, thereby producing a product stream comprising light olefins
the FCC reaction zone is operated in a down-flow configuration; and
the FCC reaction zone is operated under high severity conditions.