Method for NO.sub.x reduction by upper furnace injection of solutions of fixed nitrogen in water
US6030204A · kind A · utility
19Cited by
11References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 9, 1998 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Mar 9, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/56
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a method of reducing NO.sub.x a water-fixed nitrogen solution is injected into a furnace near the exit from the furnace where the temperatures exceed 2000.degree. F. and combustion is occurring. Preferably the solution is injected through a combination of atomizing nozzles and spray jets into a region of the furnace which does not exceed 2700.degree. F. A calcium compound to react with sulfur dioxide may also be added.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.