Patent ID: 11939539
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 17:
18. 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;
the FCC reaction zone is operated under high severity condition;
the hydrocarbon feed is a whole crude oil;
the light stream comprises at least 99 wt. % of hydrocarbons boiling at less than 343° C., based on the total weight of hydrocarbons in the light stream;
the light stream comprises at least 99 wt. % of all hydrocarbons initially in the hydrocarbon feed which boil at less than 343° C.;
the heavy stream comprises at least 99 wt. % of hydrocarbons boiling at greater than 343° C., based on the total weight of hydrocarbons in the heavy stream;
the heavy stream comprises at least 99 wt. % of all hydrocarbons initially in the hydrocarbon feed which boil at greater than 343° C.; and
hydrotreating the heavy stream comprises contacting the heavy stream with a hydro-demetallization catalyst, a hydro-desulfurization catalyst, and a hydro-dearomatization catalyst in the presence of hydrogen.