Zeolite promoted silver based catalyst for NOx storage
US9597635B2 · kind B2 · utility
9Cited by
1References
18Claims
0Family size
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Key dates
| Filing date | Dec 4, 2014 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Apr 1, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An aftertreatment system utilizes chemical reactions to treat an exhaust gas flow. A device for use within an aftertreatment system includes a silver-based NOx storage catalyst and a zeolite. The silver-based NOx storage catalyst and the zeolite store NOx through a low temperature startup period of operation. In one embodiment, the zeolite includes a barium Y zeolite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.