Oxidation catalyst and exhaust-gas purification system using the same
US8034311B2 · kind B2 · utility
13Cited by
30References
8Claims
0Family size
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Key dates
| Filing date | Feb 17, 2010 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Feb 17, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An oxidation catalyst that efficiently promotes oxidation of NO to NO2 even in a low temperature range, and an exhaust-gas purification system and method that efficiently removes exhaust-gas components even in a low temperature range are provided. This invention provides an oxidation catalyst comprising platinum and palladium as catalytically active components, which promotes oxidation of nitrogen monoxide to nitrogen dioxide, wherein the oxidation catalyst comprises 1 to 55 parts by weight of the palladium relative to 100 parts by weight of the platinum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.