Patent ID: 11866661
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 and a heavy stream, wherein the light stream comprises hydrocarbons boiling at less than 371° C. and the heavy stream comprises hydrocarbons boiling at greater than 371° C.;
hydrotreating the heavy stream to form a hydrotreated heavy stream;
feeding the light stream and the hydrotreated heavy stream to a single Fluid Catalytic Cracking (FCC) reaction zone, thereby producing a product stream comprising light olefins; wherein
the light stream is exposed to more severe FCC cracking conditions than the hydrotreated heavy 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.