Flexible method for producing oil bases and distillates by hydroisomerization-conversion on a weakly dispersed catalyst followed by a catalyctic dewaxing
US7371315B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2001 |
| Grant date | May 13, 2008 |
| Priority date | — |
| Expiry date | Oct 2, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G65/043
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process for production of very high-quality base oils, and simultaneous production of high-quality middle distillates, comprises the successive stages of hydroisomerization and catalytic dewaxing. The hydroisomerization takes place in the presence of a catalyst containing at least one noble metal deposited on an amorphous acid support, the metal dispersion being less than 20%. The support is preferably an amorphous silica-alumina. The catalytic dewaxing takes place in the presence of a catalyst containing at least one hydrodehydrogenating element (Group VIII) and at least one molecular sieve chosen from ZBM-30, EU-2, and EU-11.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.