Hydrodemetallization and hydrodesulphurization catalysts, and use in a single formulation in a concatenated process
US8394262B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2009 |
| Grant date | Mar 12, 2013 |
| Priority date | — |
| Expiry date | May 4, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/4018
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention describes a catalyst comprising at least one metal from group VIB, at least two metals from group VIII termed the major promoter VIII-1 and co-promoters VIII-i, where i is in the range 2 to 5, and at least one support constituted by a porous refractory oxide, in which the elements from group VIII are present in proportions defined by the atomic ratio [VIII-1/(VIII-1+ . . . +VIII-i)], said ratio being in the range 0.5 to 0.85, as well as a process for the hydrotreatment of heavy hydrocarbon feeds, comprising at least one hydrodemetallization step and at least one hydrodesulphurization step, and employing a catalyst in accordance with the invention with an identical atomic ratio in each of the hydrodemetallization and hydrodesulphurization steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.