Process for regenerating spent heavy hydrocarbon hydroprocessing catalyst
US4997799A · kind A · utility
3Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1990 |
| Grant date | Mar 5, 1991 |
| Priority date | — |
| Expiry date | Jun 20, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S502/521
- 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.