Process for improving the stability of catalysts for the catalytic hydrotreatment of petroleum cuts
US4363719A · kind A · utility
6Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1981 |
| Grant date | Dec 14, 1982 |
| Priority date | — |
| Expiry date | Apr 28, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a process to improve the stability of a catalyst to be used for lowering the cloud or turbidity point and the filterability limit temperature of gas-oils. The catalyst is formed of a composite system constituting 5 to 90% of a hydrodesulfuration type catalyst A and 95 to 10% of a hydroconversion type catalyst B, these two catalysts being either mixed or superposed, in which case catalyst A forms the top of the catalytic bed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.