Process for removing nitrogen oxides using ammonia as a reductant and sulfated metallic catalysts
US4107272A · kind A · utility
29Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1977 |
| Grant date | Aug 15, 1978 |
| Priority date | — |
| Expiry date | Jan 25, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/8628
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Nitrogen oxides are removed from flue gas evolving from stationary sources and containing the nitrogen oxides through reduction of nitrogen oxides to nitrogen by passing the flue gas over a catalyst of metal compounds containing oxysulfur compounds in the presence of an ammonia gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.