Xylene production processes employing rhenium-containing catalysts
US7566810B2 · kind B2 · utility
4Cited by
25References
20Claims
0Family size
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Key dates
| Filing date | Aug 23, 2007 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | Nov 7, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Processes for making xylene employ catalysts containing rhenium and a molecular sieve component comprising an acidic MFI molecular sieve having a Si/Al2 molar ratio of less than about 80 and mordenite to provide a transalkylation product with a low content of benzene co-boilers. The invention encompasses the use of sulfided catalyst embodiments in xylene production processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.