Patent ID: 11891578
Assignee: CHINA PETROLEUM & CHEMICAL CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 11:
12. The process according to claim 1, further comprising: introducing one or more streams of supplementary catalyst into the fast fluidized bed,
wherein the one or more streams of supplementary catalyst each independently has a carbon content of about 0-1.0 wt. %, and is each independently a regenerated catalytic cracking catalyst, a semi-regenerated catalytic cracking catalyst, or a spent catalytic cracking catalyst, and a total amount of the one or more streams of supplementary catalyst accounts for about 0-50 wt. % of a catalyst circulation rate of the reactor; and
each of the one or more streams of supplementary catalyst is independently introduced at an inlet disposed at a location within about 0-90% of a total height of the fast fluidized bed.