Multi-catalyst selection for chlorided reforming catalyst
US7410565B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 17, 2004 |
| Grant date | Aug 12, 2008 |
| Priority date | — |
| Expiry date | Jul 5, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G35/085
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The chloride retention of an alumina catalyst over the course of operation and regeneration can be controlled and stabilized by incorporating a small amount of a component selected from the group including phosphorus, boron, titanium, silicon, and zirconium. Steam treatments have been used to simulate commercial hydrothermal stability and a small amount of the stabilizer component has been discovered which balances chloride retention. Moreover, in a multi-catalyst hydrocarbon conversion process, such as the two-step reforming of naphtha, it has been discovered that proper selection of a catalyst having lower chloride retention in combination with another catalyst having higher chloride retention results in a process with increased yield and/or higher octane gasoline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.