Hydroprocessing catalyst and phosphorous and citric acid containing impregnating solution
US4879265A · kind A · utility
20Cited by
7References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 10, 1988 |
| Grant date | Nov 7, 1989 |
| Priority date | — |
| Expiry date | May 10, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G49/04
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A hydrocarbon hydroprocessing catalyst containing a Group VIB metal and a phosphorus component on a porous refractory oxide is prepared by impregnating support particles with a solution containing (1) phosphorus, and (2) citric acid in a mole ratio to Group VIB metal components of less than 1 to 1, followed by drying and calcining. The catalyst is useful for promoting a number of hydrocarbon hydroprocessing reactions, particularly those involving hydrogenative desulfurization, demetallization and most particularly, denitrogenation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.