Method for presulfiding hydrodesulfurization catalysts
US4111796A · kind A · utility
15Cited by
9References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 2, 1976 |
| Grant date | Sep 5, 1978 |
| Priority date | — |
| Expiry date | Apr 2, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J37/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An improved method for presulfiding a hydrodesulfurization catalyst which comprises continuously contacting the catalyst with a sulfiding treating agent at a relatively low temperature and pressure and only until the total amount of sulfur in the treating agent contacting the catalyst is no more than 55 percent of the amount of sulfur required to sulfide the supported metals on the catalyst to their completely sulfided forms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.