Catalyst regeneration in a catalytic reforming process
US4440667A · kind A · utility
4Cited by
4References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 7, 1983 |
| Grant date | Apr 3, 1984 |
| Priority date | — |
| Expiry date | Jan 7, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J27/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst regeneration process wherein a platinum-iridium catalyst promoted with one or more of copper, sulfurous acid or sulfuric acid, or selenium components, preferably a platinum-iridium-selenium catalyst, is contacted with naphtha and the naphtha reformed at fluidized bed or magnetically stabilized fluidized bed severities for a period of at least 0.25 hours or at cyclic severities for a period of at least about 60 hours, or at semi-regenerative severities for a period of at least about 600 hours, and the catalyst then regenerated by contact with hydrogen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.