Hybrid process for nitrogen oxides reduction
US5047219A · kind A · utility
22Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 1989 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | Aug 18, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention presented is a process for reducing the nitrogen oxides concentration in the effluent from the combustion of a carbonaceous fuel. The inventive process comprises introducing into the effluent an oxygenated treatment agent which includes an oxygenated hydrocarbon under conditions effective to oxidize nitric oxide in the effluent to nitrogen dioxide and to produce ammonia; and contacting the effluent with an aqueous absorbing solution having a component capable of causing nitrogen dioxide to be absorbed into the solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.