Hydroprocessing of petroleum fractions with a dual catalyst system
US5871635A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1996 |
| Grant date | Feb 16, 1999 |
| Priority date | — |
| Expiry date | Dec 3, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G47/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Hydrocarbonaceous feedstocks admixed with a flow-through catalyst and hydrogen are hydroprocessed in a hydroprocessing reactor containing a captive hydroprocessing catalyst. The flow-through catalyst is continually withdrawn with the hydroprocessed feed from the hydroprocessing reactor. The flow-through catalyst may be an FCC, hydrocracking, isomerization or ring-opening catalyst. In a preferred embodiment, the captive hydroprocessing catalyst contains Co, Ni and/or Mo on an alumina base and the flow-through catalyst is an FCC zeolitic catalyst which is withdrawn with the hydroprocessed feed from the hydroprocessing reactor and then sent to an FCC unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.