Hydrotreating catalyst sulphiding agent and its use for in situ and ex situ presulphidation
US9353054B2 · kind B2 · utility
1Cited by
19References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2010 |
| Grant date | May 31, 2016 |
| Priority date | — |
| Expiry date | Aug 18, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/80
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention relates to a sulphiding agent for a hydrotreating catalyst which makes possible faster sulphiding of the catalyst but which also makes possible to very significantly limit solid deposits, in particular of sulphur.The sulphiding agent according to the invention is essentially composed of diethyl disulphide (DEDS) or dipropyl disulphide(s) (DPDS) or dibutyl disulphide(s) (DBDS) and can be employed in “in situ” and “ex situ” presulphidation processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.