Reforming with multimetallic catalysts
US4166046A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1978 |
| Grant date | Aug 28, 1979 |
| Priority date | — |
| Expiry date | Jan 30, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J27/0573
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst composition, and process, useful in reforming a hydrocarbon feed at reforming conditions without excessive hydrogenolysis, a phenomenon which is normally particularly acute during the startup of a reactor. The catalyst is constituted of a composite which includes a Group VIII noble metal hydrogenation-dehydrogenation component, notably platinum, iridium, and selenium. Hydrogenolysis is suppressed, and significantly greater yields of higher octane C.sub.5 + liquid product are obtained by contact of the selenium promoted iridium-containing catalyst with oxygen prior to contact of the catalyst with a hydrocarbon fraction at reforming conditions. Suitably, the oxygen pretreatment is conducted by contact of the catalyst with an oxygen containing gas at elevated temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.