Process for the preparation of a presulfided and sulfided catalyst
US5017535A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1990 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Jun 20, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G45/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a process for the ex situ presulfidation of hydrotreating catalysts employing organic sulfur compounds with a boiling point exceeding 100.degree. C. and satisfying the formula EQU X--R.sup.1 (S--R.sup.2).sub.p S--R.sup.3 --Y (I) wherein p=0, 1 or 2, PA0 R.sup.1, R.sup.2, and R.sup.3 may be the same or different and represent alkylene groups having 1-4 carbon atoms, PA0 X and Y may be the same or different and have the meaning of --H, --OH, --OR.sup.4 4 or --C(O)OR.sup.5, wherein PA0 R.sup.4 has the meaning of an alkyl group or acyl group with 1-3 carbon atoms, and PA0 R.sup.5 has the meaning of --H, an ammonium group or an alkyl group with 1-3 carbon atoms. Also disclosed is a process for activating the thus presulfided catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.