Hydrotreating catalysts comprising a mixture of a sulfide of a promoter metal, amorphous sulfide of trivalent chromium and microcrystalline molybdenum or tungsten sulfide
US4824820A · kind A · utility
22Cited by
8References
12Claims
0Family size
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Key dates
| Filing date | Sep 24, 1987 |
| Grant date | Apr 25, 1989 |
| Priority date | — |
| Expiry date | Sep 24, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G49/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A composition of matter comprising a mixture of (i) a sulfide of at least one promoter metal selected from the group consisting of Ni, Co, Mn, Cu, Zn and mixture thereof and mixtures thereof with Fe, (ii) an amorphous sulfide of trivalent chromium and (iii) microcrystallites of metal sulfide of a metal selected from the group consisting of molybdenum, tungsten and mixture thereof. These compositions have been found to be useful hydrotreating catalysts having nitrogen removal activity superior to that of commercial catalysts such as cobalt-molybdate on alumina.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.