Integrated apparatus for removing pollutants from a fluid stream in a lean-burn environment with heat recovery
US6935105B1 · kind B1 · utility
42Cited by
5References
45Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 4, 1999 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | Nov 4, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus and method to treat fluid streams, and in particular emissions from lean-burn engines such as diesel engines, are disclosed, which use multiple catalysts chosen to remove hydrocarbons, carbon monoxide, particulate matter, and oxides of nitrogen. The apparatus and method also provide for heat exchange between the inlet and outlet exhaust streams to sustain the catalyzed reactions, by placing the catalysts in the temperature zones where their operation is enhanced, and they also allow for regeneration of a filter used to trap particulate matter in the streams.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.