NOx reduction in combustion with concentrated coal streams and oxygen injection
US6699031B2 · kind B2 · utility
26Cited by
72References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2002 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Jul 11, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/34
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
NOx formation in the combustion of solid hydrocarbonaceous fuel such as coal is reduced by obtaining, from the incoming feed stream of fuel solids and air, a stream having a ratio of fuel solids to air that is higher than that of the feed steam, and injecting the thus obtained stream and a small amount of oxygen to a burner where the fuel solids are combusted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.