Mobile DeNOx catalyst
US7879759B2 · kind B2 · utility
7Cited by
10References
31Claims
0Family size
Inventors
Key dates
| Filing date | Feb 16, 2009 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Aug 1, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
DeNOx catalysts for the reduction of NOx compounds and porous catalyst support materials are provided. The inventive catalysts comprise an active metal catalyst component and mixed TiO2/ZrO2 porous support particles that comprise a) a crystalline phase comprising titanium dioxide and/or a titanium/zirconium mixed oxide, b) an amorphous phase comprising zirconium, and c) a small amount of one or more metal oxide(s) or metalloid oxide(s) deposited on the amorphous outer layer. The inventive catalysts exhibit superior activity and ammonia selectivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.