Device and method for removing sooty particulate from exhaust gases from combustion processes
US6680037B1 · kind B1 · utility
40Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2002 |
| Grant date | Jan 20, 2004 |
| Priority date | — |
| Expiry date | Jun 17, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A canister (1) contains a catalyst for generating NO2 and a filter (8) for trapping PM, e.g. from diesel engines. The filter is thermally isolated from the canister, and preferably is surrounded by an annular monolith comprising the NO oxidation catalyst or a SCR catalyst. The invention facilitates the combustion of PM even at low exhaust gas temperatures, in a compact device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.