Patent ID: 11866659
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 370° C., and the heavy stream comprises hydrocarbons boiling at greater than greater than 370° C.;
hydrotreating the heavy stream to form a hydrotreated heavy stream;
feeding the light stream to a first Fluid Catalytic Cracking (FCC) reaction zone, thereby producing a light product stream comprising light olefins; and
feeding the hydrotreated heavy stream to a second Fluid Catalytic Cracking (FCC) reaction zone, thereby producing a heavy product stream comprising light olefins; wherein
the first FCC reaction zone operates under more severe operating conditions than the second FCC reaction zone.