Catalytic cracking process
US4345992A · kind A · utility
23Cited by
9References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1980 |
| Grant date | Aug 24, 1982 |
| Priority date | — |
| Expiry date | Oct 27, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/521
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In a cracking process wherein used catalyst is regenerated, contacted with reducing gas to counter effects of contaminating metals, and recycled to the cracking zone, the improvement comprising using a gas seal to assure that a major portion of the unconsumed reducing gas is also passed into the cracking zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.