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

Claim 13:
14. The process of claim 13, wherein:
the steam catalytic cracking reactor comprises a preheating zone and a reaction zone downstream of the preheating zone, wherein the preheating zone comprises an inert carrier and the reaction zone comprises the cracking catalyst; and
transitioning the steam catalytic cracking reactor to the high-throughput propylene-selective mode comprises adjusting a loading volume of the cracking catalyst in the reaction zone so that a height to diameter ratio of the reaction zone in the steam catalytic cracking reactor is from 4.5 to 8, and adjusting the inert carrier pre-heating loaded volume to the cracking catalyst loading volume ranges from 0.1 to 6.