Catalytic reforming process
US4588495A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1985 |
| Grant date | May 13, 1986 |
| Priority date | — |
| Expiry date | Feb 22, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G59/02
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In a catalytic reforming process wherein a charge is circulated successively through a first catalyst bed and then at least one further catalyst bed, the improvement wherein the catalyst of the first bed comprises a carrier of alumina base and, by weight in proportion to the carrier, 0.05-0.6% of platinum, 0.005-3% of rhenium and 0.1-15% of at least one halogen and wherein each catalyst of the other beds contains a carrier of alumina base and, by weight with respect to the carrier, 0.05-0.6% of platinum, 0.05-3% of at least one metal promoter selected from the group consisting of tin, thallium and indium and 0.1-15% of at least one halogen, the proportion by weight of the catalyst containing platinum and rhenium ranging from 8 to 40% with respect to the total catalyst mass used in all the catalyst beds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.