Process and apparatus for upgrading FCC product with additional reactor with catalyst recycle
US6866771B2 · kind B2 · utility
60Cited by
39References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2002 |
| Grant date | Mar 15, 2005 |
| Priority date | — |
| Expiry date | Aug 23, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2208/00327
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process and apparatus is disclosed for contacting feed with mixed catalyst in a secondary reactor that is incorporated into an FCC reactor. The mixed catalyst used in the secondary reactor is regenerated catalyst from a regenerator that regenerates spent catalyst from an FCC reactor that is mixed with spent catalyst from either the FCC reactor or the secondary reactor. The mixing of spent and regenerated catalyst reduces the catalyst temperature and tempers catalyst activity to inhibit both thermal and catalytic cracking reactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.