Non-catalytic method for reducing the concentration of NO in combustion effluents by injection of ammonia at temperatures from about 975 degrees K. to 1300 degrees K.
US4636370A · kind A · utility
16Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1985 |
| Grant date | Jan 13, 1987 |
| Priority date | — |
| Expiry date | Mar 22, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/56
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is a method for non-catalytically reducing the concentration of NO in combustion effluents by the injection of ammonia into an effluent stream where the stream is at a temperature from about 975.degree. K. to 1300.degree. K. More particularly, the amount of NH.sub.3 and its point of injection are determined by the solution of a set of simultaneous equations derived from the kinetic model disclosed herein. Particular benefits of the present invention occur when ammonia is injected into a cooling zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.