Downflow fluid catalytic cracking process and apparatus
US5344554A · kind A · utility
16Cited by
13References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1991 |
| Grant date | Sep 6, 1994 |
| Priority date | — |
| Expiry date | Oct 3, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G11/187
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a downflow fluid cracking process and apparatus. More specifically, sampling takes place of the at least partly regenerated catalyst, which must be recycled to the reactor 1 from a dense phase 17a, contained in a regenerator 17 and the stage of introducing the catalyst into the upper part 3 of the reactor 1 takes place under conditions such that the density of the thus formed gas-solid suspension is between 80 and 500 kg/m.sup.3 prior to its contacting with the charge, which is introduced by the injectors 5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.