Catalytic process for manufacture of lubricating oils
US4292166A · kind A · utility
27Cited by
7References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1980 |
| Grant date | Sep 29, 1981 |
| Priority date | — |
| Expiry date | Jul 7, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method is disclosed for converting an asphalt-free heavy hydrocarbon oil to high V.I. low pour point lube base stock and naphtha. The heavy oil is first catalytically dewaxed with a catalyst such as Ni-ZSM-5 and the dewaxed oil is then hydrocracked, or hydroconverted with a large pore zeolite catalyst such as dealuminized Y or ZSM-20 associated with palladium. The V.I. is controlled by the severity of the hydroconversion step.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.