Particulate filter containing a nickel-copper catalyst
US9630146B2 · kind B2 · utility
3Cited by
24References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2013 |
| Grant date | Apr 25, 2017 |
| Priority date | — |
| Expiry date | May 4, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A particulate filter for use in a vehicle engine exhaust is provided which includes a catalyst containing a mixture of nickel and copper. The catalyst is impregnated into the filter substrate, which is non-reactive with nickel and copper. When used in a vehicle exhaust gas treatment system, the catalyst on the filter improves soot burn-off at low temperatures, provides improved efficiency in reducing CO and NOx emissions over the use of conventional three-way-catalyst washcoats, and provides enhanced oxygen storage capacity (OSC) and water-gas-shift (WGS) functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.