Low pressure hydrocracking of refractory feed
US4257872A · kind A · utility
28Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1979 |
| Grant date | Mar 24, 1981 |
| Priority date | — |
| Expiry date | Oct 22, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J29/70
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides a process for low pressure catalytic hydrocracking of refractory hydrocarbon charge stocks, such as coker gas oil or shale oil to products of reduced pour points by catalytic hydrotreating and cascading the hydrotreater effluent through a hydrocracking zone, containing a catalyst which is characterized by an alkali metal substantilly non-acidic crystalline zeolite having an alpha activity of less than about 10, a silica/alumina ratio of at least about 12 and a constraint index of approximately 1 to 12.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.