Process for the presulphurization of hydrocarbon treatment catalysts
US5397756A · kind A · utility
13Cited by
4References
13Claims
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Key dates
| Filing date | Apr 1, 1993 |
| Grant date | Mar 14, 1995 |
| Priority date | — |
| Expiry date | Apr 1, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J37/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
For the impregnation into the pores of a hydrocarbon treatment catalyst of a sulfurizing agent chosen from element sulfur and organic polysulfides with the aid of a solvent, the impregnation process totally or partially comprises a constituent of the olefin or olefin fraction type, e.g., of the vegetable oil type, or a similar constituent. The use of such a constituent makes it possible to significantly reduce the exothermal effect which occurs during presulfurization, compared with the exothermal effects obtained without using such a constituent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.