Catalytic/non-catalytic combination process for nitrogen oxides reduction
US5139754A · kind A · utility
27Cited by
8References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1990 |
| Grant date | Aug 18, 1992 |
| Priority date | — |
| Expiry date | Dec 12, 2010 |
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 combusiton effluent is presented. The process involves introducing a nitrogenous treatment agent into the effluent under conditions effective to create a treated effluent having reduced nitrogen oxides concentration such that ammonia is present in the treated effluent; and then contacting the treated effluent under conditions effective to reduce the nitrogen oxides in the effluent with a nitrogen oxides reducing catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.