FCC Reactor with a downflow reactor riser
US4385985A · kind A · utility
60Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1981 |
| Grant date | May 31, 1983 |
| Priority date | — |
| Expiry date | Apr 14, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G11/182
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A fluid catalytic cracking (FCC) process and apparatus using a riser and a reactor for cracking of petroleum feeds in the presence of a catalyst and a regenerator for regenerating the spent catalyst are improved by providing a downflow riser. The downflow riser assures uniform distribution of the catalyst throughout the feed, decreases contact time of the catalyst with the feed and decreases the amount of coke made in the process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.