Method of the purification of the exhaust gas from a lean-burn engine using a catalyst
US6555081B2 · kind B2 · utility
15Cited by
54References
16Claims
0Family size
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Inventors
Key dates
| Filing date | Oct 14, 1999 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Oct 14, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst for purifying the exhaust gas from a lean-burn engine, which includes a refractory inorganic oxide carrying platinum thereon, a cerium-containing oxide carrying palladium thereon, and an alkali metal compound and/or an alkaline earth metal compound, and a method for the production of the catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.