Process for activation of a catalyst in the presence of thionic and nitrogenous compounds
US6329314A · kind A · utility
8Cited by
3References
9Claims
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Key dates
| Filing date | May 5, 1999 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | May 5, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G47/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for activation of a hydroconversion catalyst, whereby said catalyst contains at least one metal or element of group VIII, at least one acid element and optionally at least one metal or element of group VI according to which a light petroleum fraction, at least one thionic compound and at least one nitrogenous compound are injected in said catalyst. This process is carried out such that the QS sulfur amount that is injected before the temperature of the catalyst reaches 250.degree. C. is at least equal to half the QS.sub.O sulfur amount that is necessary for complete sulfurization of the catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.