Catalyst for exhaust gas purification, production method therefor, and method for purification of exhaust gas using the catalyst
US7923407B2 · kind B2 · utility
12Cited by
10References
9Claims
0Family size
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Key dates
| Filing date | Mar 14, 2007 |
| Grant date | Apr 12, 2011 |
| Priority date | — |
| Expiry date | Oct 5, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
It is an object of the present invention to provide a catalyst for the exhaust gas purification having excellent ignition performance and NOx purification performance. The present invention provides a catalyst for the exhaust gas purification which comprises a catalytically active component (I) having palladium and barium supported on a refractory inorganic oxide (A); and a catalytically active component (II) having at least either of rhodium and platinum on a refractory inorganic oxide (B), a method for the production thereof, and a method for purifying an exhaust gas using such a catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.