Fluid catalytic cracking apparatus
US4725408A · kind A · utility
6Cited by
8References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1986 |
| Grant date | Feb 16, 1988 |
| Priority date | — |
| Expiry date | Aug 19, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G11/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Apparatus for catalytic cracking of a selected portion of a hydrocarbon feedstock comprising a riser reactor and a catalyst regenerator, a regenerated catalyst cooler, and an absorber. Regenerated catalyst from the catalyst regenerator is conducted through the catalyst cooler into the absorber where it adsorbs hydrocarbon cracking feedstock and then returned to the riser reactor. A duct carries part of the hot regenerated catalyst from the catalyst regenerator directly to the riser reactor to supply heat for cracking the hydrocarbon feedstock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.