Olefin isomerisation process using metallic catalysts impregnated with organic sulphur-containing compounds before loading into the reactor
US5569806A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1994 |
| Grant date | Oct 29, 1996 |
| Priority date | — |
| Expiry date | Jul 29, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G45/62
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention concerns a process for the isomerisation of less substituted olefins to more substituted external olefins and/or internal olefins in the absence of diolefins, in the presence of a palladium based catalyst deposited on a support. Before loading it into the reactor, said catalyst is treated with at least one sulphur-containing compound which is dissolved in a solvent then activated in a neutral or reducing atmosphere between 20.degree. C. and 300.degree. C., 1 and 50 bars and with a VVH of 50 to 600 h.sup.-1. The catalyst, containing 0.05% to 10% by weight of sulphur, is brought into contact with the feedstock and hydrogen between 20.degree. C. and 200.degree. C., 1 and 50 bars, a VVH of 0.5 to 10 h.sup.-1 and a H.sub.2 /olefin molar ratio of 0.01 to 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.