Cascade hydrodewaxing process
US4599162A · kind A · utility
55Cited by
16References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 21, 1984 |
| Grant date | Jul 8, 1986 |
| Priority date | — |
| Expiry date | Dec 21, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G45/64
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Hydrocarbon feedstocks are dewaxed in a dual catalyst cascade process by passing the waxy feedstock over a crystalline silicate zeolite catalyst having a Constraint Index between 2 and 12, and then over a different crystalline silicate zeolite catalyst having a Constraint Index no less than 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.