Catalytic devices for converting urea to ammonia
US8071037B2 · kind B2 · utility
8Cited by
179References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2008 |
| Grant date | Dec 6, 2011 |
| Priority date | — |
| Expiry date | Jul 2, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49345
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Described are apparatuses, systems, and methods for treating exhaust. The described apparatus and systems typically include a catalytic device for converting aqueous urea to ammonia. The catalytic device may include a pyrolysis catalyst and a hydrolysis catalyst for converting aqueous urea to ammonia. The catalytic device typically includes an upstream face that is positioned at an angle relative to exhaust flow when the device is positioned in a selective catalytic reduction (SCR) system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.