Exhaust gas purifying catalyst and process for purification of exhaust gas
US7393804B2 · kind B2 · utility
2Cited by
1References
19Claims
0Family size
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Key dates
| Filing date | Nov 18, 2003 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | May 24, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An exhaust gas purifying catalyst has a catalytic component including copper, ZSM-5, and β zeolite. This exhaust gas purifying catalyst reduces nitrogen oxides even from low temperature range and exhibits durability even under a thermal load of high temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.