Systems and methods for control of engine NOx emissions using liquid and dry reductant sources
US9771850B2 · kind B2 · utility
13Cited by
14References
20Claims
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Key dates
| Filing date | Aug 8, 2016 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Aug 8, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Reductant delivery systems are disclosed that include a dry reductant source and a liquid reductant source which are operable to selectively provide gaseous reductant and liquid reductant to an exhaust aftertreatment system for treatment and reduction of NOx emissions. The gaseous reductant is provided to the exhaust aftertreatment system for treatment of NOx emissions under a first temperature condition associated with the exhaust system and the liquid reductant for treatment of NOx emissions under a second temperature condition associated with the exhaust system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.