Method for dosing an urea based reducing agent into a gas exhaust stream
US8752365B2 · kind B2 · utility
2Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2010 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Dec 15, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The present invention provides for a method for dosing an urea-based reducing agent into a exhaust gas stream generated from a combustion engine and addressed to an aftertreatment system, e.g. SCR or SCRT system. According to the method of the invention the gas exhaust stream is conveyed into a dosing housing which develops along a longitudinal axis. In particular the gas is conveyed by generating an annular inlet jet inclined with respect of said axis. The urea-based reducing agent is injected by generating, inside the housing, an urea-based reducing agent spray which is preferably coaxial to said axis of the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.