Catalyst systems
US6651424B1 · kind B1 · utility
13Cited by
10References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 10, 2001 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Sep 10, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A system and method for the after-treatment of exhaust gases from an internal combustion engine is provided. The system includes a first catalyst disposed downstream of the engine, through which the exhaust gases flow and which is effective to catalyze a shift reaction between carbon monoxide and water, or which is exhaust gas. The system also includes an oxygen source disposed between the first catalyst and a hydrocarbon trap, and downstream from all of those a three-way catalyst to catalytically oxidize hydrocarbons and carbon monoxide to reduce noxious emissions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.