Patent ID: 11866397
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A process for upgrading a hydrocarbon feed to produce light olefins, the process comprising:
contacting the hydrocarbon feed with steam in the presence of a cracking catalyst in a steam catalytic cracking reactor at reaction conditions sufficient to cause at least a portion of the hydrocarbons in the hydrocarbon feed to undergo one or more cracking reactions to produce a steam catalytic cracking effluent comprising ethylene, propylene, or both, wherein the process is capable of being transitioned between an ethylene-selective mode and a propylene-selective mode;
determining whether to produce ethylene or propylene;
when producing ethylene, then operating the process in ethylene-selective mode comprises producing more ethylene than propylene; or
when producing propylene, then operating the process in propylene-selective mode comprises producing more propylene than ethylene.