Catalytic dewaxing of light and heavy oils in dual parallel reactors
US4810357A · kind A · utility
60Cited by
13References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 16, 1988 |
| Grant date | Mar 7, 1989 |
| Priority date | — |
| Expiry date | Mar 16, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G65/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Relatively heavy or relatively light lube chargestocks are dewaxed in two parallel, separate reactors. The reactor used for dewaxing the relatively light chargestocks contains a crystalline aluminosilicate zeolite exemplified natural or synthetic ferrierite, ZSM-22, ZSM-23 and ZSM-35 zeolites and/or mixtures thereof. The reactor used for dewaxing the relatively heavy chargestocks contains a crystalline aluminosilicate zeolite exemplified by ZSM-5, ZSM-11 zeolites, ZSM-5/ZSM-11 intermediates and/or mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.