Patent ID: 11866662
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A method of processing a hydrocarbon feed comprising
fractionating the hydrocarbon feed into a light stream, a middle stream, and a residue stream, wherein the light stream comprises hydrocarbons boiling at less than 200° C., the middle stream comprises hydrocarbons boiling from 200° C. to 540° C., and the residue stream comprises hydrocarbons boiling at greater than 540° C.;
hydrotreating the residue stream to form a hydrotreated residue stream; and
feeding the light stream, middle stream, and the hydrotreated residue stream to a single Fluid Catalytic Cracking (FCC) reaction zone, thereby producing a product stream comprising light olefins; wherein
the light stream and the hydrotreated residue streams are exposed to more severe FCC cracking conditions than the middle stream, within the same FCC reaction zone;
the single FCC reaction zone is operated in a down-flow configuration; and
the single FCC reaction zone is operated under high severity conditions.