Highly efficient hybrid process for nitrogen oxides reduction
US5286467A · kind A · utility
26Cited by
16References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 1992 |
| Grant date | Feb 15, 1994 |
| Priority date | — |
| Expiry date | Jul 1, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/56
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for reducing nitrogen oxides in a combustion effluent is presented. The process involves introducing a nitrogenous treatment agent other than ammonia into the effluent to create a treated effluent having reduced nitrogen oxides concentration such that ammonia is present in the treated effluent; introducing a source of ammonia into the effluent; and contacting the treated effluent with a nitrogen oxides reducing catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.