Process for reducing nitrogen oxides without generating nitrous oxide
US4997631A · kind A · utility
20Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1990 |
| Grant date | Mar 5, 1991 |
| Priority date | — |
| Expiry date | Mar 7, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is presented for the reduction of nitrogen oxides in the effluent from the combustion of a carbonaceous fuel while reducing the generation of nitrous oxide. The process comprises introducing a treatment agent comprising ammonium carbamate into the effluent in an amount effective to substantially avoid the presence of nitrous oxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.