Patent ID: 11939539
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 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.