Process for improving the pour point, and a catalyst based on at least one MTT, Ton or Fer zeolite
US6235960A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 12, 1999 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | May 12, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/42
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for improving the pour point of a feed comprising paraffins containing more than 10 carbon atoms, in which the feed to be treated is brought into contact with a catalyst comprising at least one zeolite with structure type MTT, TON or FER or any possible combination of these three, at least one hydro-dehydrogenating element selected from elements from group VIB and group VIII of the periodic table, at least one deposited promoter element (boron, silicon, phosphorous), optionally at least one group VIIA element, optionally at least one group VIIB element, at a temperature in the range 170.degree. C. to 500.degree. C., a pressure in the range 1 to 250 bars and at an hourly space velocity in the range 0.05 to 100 h.sup.-1, in the presence of hydrogen in an amount 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 in pour point. The invention also relates to a catalyst containing silicon and to its use for converting hydrocarbon-containing feeds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.