EU-1 zeolite catalyst and a process for the reduction of the pour point of feeds containing paraffins
US6733658B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1998 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Jun 24, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/4018
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention concerns a process for improving the pour point of a feed comprising paraffins containing more than 10 carbon atoms, in which process the feed to be treated is brought into contact with a catalyst comprising an EU-1 zeolite and at least one hydro-dehydrogenating element, at a temperature which is in the range 170° C. to 500° C., a pressure in the range 1 to 250 bar and an hourly space velocity in the range 0.05 to 100 h−1, in the presence of hydrogen in a proportion of 50 to 2000 l/l of feed. The oils obtained have good pour points and high viscosity indices (VI). The process is also applicable to gas oils and other feeds requiring a reduction of pour point. The invention also concerns an EU-1 zeolite from which a portion of elements T (Al, Ga, Fe or B) have been removed and which has an Si/T atomic ratio of at least 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.