Selectively sulfided acidic multimetallic catalytic composite
US4178268A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1978 |
| Grant date | Dec 11, 1979 |
| Priority date | — |
| Expiry date | Jan 25, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J27/08
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Hydrocarbons are converted by contacting them at hydrocarbon conversion conditions with a selective sulfided acidic multimetallic catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a sulfided rhenium component and a halogen component with a porous carrier material formed from Ziegler alumina. The platinum group component, sulfided rhenium component and halogen component are present in the multimetallic catalytic composite in an amount, calculated on an elemental basis, corresponding to about 0.01 to about 2 wt. % platinum group metal, about 0.01 to about 2 wt. % rhenium, about 0.1 to about 3.5 wt. % halogen and sulfur in an amount at least sufficient to provide an atomic ratio of sulfur to rhenium of at least about 0.5:1. These metallic components are, moreover, relatively uniformly dispersed throughout the Ziegler alumina carrier material in carefully controlled oxidation state such that substantially all of the platinum group metal is present therein in the elemental metallic state and a substantial portion of the rhenium present therein is maintained in a sulfided state. A key feature of the hydrocarbon conversion proce…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.