Process for regenerating spent heavy hydrocarbon hydroprocessing catalyst
US5071538A · kind A · utility
5Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 1990 |
| Grant date | Dec 10, 1991 |
| Priority date | — |
| Expiry date | Oct 15, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G49/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a spent hydroprocessing catalyst regeneration process wherein the catalyst is subjected to an initial partial decoking step, followed by the addition of at least one rare earth metal, and then subjected to a final decoking step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.