Regeneration of cracking catalyst in two successive zones
US4388218A · kind A · utility
34Cited by
15References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 22, 1981 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | Sep 22, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G11/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Process and apparatus suitable for the regeneration of catalytic cracking catalyst particles and for the heating and partial conversion of coke particles from a coking process are described. The particles are heated in two successive zones, for example formed by two fluidized beds, conditions being controlled so that (1) only partial regeneration of catalyst particles or conversion of coke particles occurs in the first zone, and (2) there is no major evolution of heat from either zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.