Reducing no emissions from an engine by on-demand generation of ammonia for selective catalytic reduction
US6361754B1 · kind B1 · utility
74Cited by
15References
13Claims
0Family size
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Key dates
| Filing date | Mar 27, 1997 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Mar 27, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A safe, reliable SCR system for reducing NOx emissions from an internal combustion engine hydrolyzes urea or like reagent under sufficient pressure to assure generation of ammonia, without production of solids that could foul injectors or catalysts. The heat for hydrolysis can be provided by the exhaust or an auxiliary means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.