Protection of catalysts by deposition of a protective layer
US6294498A · kind A · utility
29Cited by
8References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 1998 |
| Grant date | Sep 25, 2001 |
| Priority date | — |
| Expiry date | Aug 11, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G49/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Process for passivation of a heterogenous catalyst of refining reactions or hydrocarbon hydroconversion reactions, characterized in that the external surface of the particles of said heterogeneous catalyst is coated with a protective layer that is made of a particularly inert material which can be eliminated in the reaction zone under the conditions of the reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.