Manufacture of hydrocracked low pour lubricating oils
US4283272A · kind A · utility
31Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1980 |
| Grant date | Aug 11, 1981 |
| Priority date | — |
| Expiry date | Jun 12, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Hydrocracked, low pour lubricating oils of good stability are manufactured by passing a suitable hydrocarbon feed and hydrogen sequentially through a hydrocracking zone, a catalytic dewaxing zone, and a hydrotreating zone, all at high pressure and in that order, with purification of the hydrogen gas prior to passage to the dewaxing zone. By maintaining all zones at high pressure, the efficiency of the process is augmented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.