Upgrading shale oil
US4153540A · kind A · utility
36Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 1977 |
| Grant date | May 8, 1979 |
| Priority date | — |
| Expiry date | May 4, 1997 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B3/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Liquid products from retorting oil shale are upgraded to a total liquid suited to pipeline transport and containing increased amounts of the premium products gasoline through distillate fuel by hydrotreating to convert sulfur, oxygen, nitrogen and metal constituents and cascading the hydrotreater effluent through a hydrocracking reactor containing a catalyst which is characterized by a crystalline zeolite having a silica/alumina ratio greater than 12 and a constraint index of 1 to 12, for example zeolite ZSM-5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.