Method for obtaining ultra-low NOx emissions from gas turbines operating at high turbine inlet temperatures
US7765810B2 · kind B2 · utility
78Cited by
8References
3Claims
0Family size
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Inventor
Key dates
| Filing date | Nov 15, 2005 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | Feb 12, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E20/16
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A method of lowered NOx combustion is taught wherein the kinetic rate of NOx formation is reduced for a given combustion temperature in a gas turbine combustor. A supply of fuel is provided along with a supply of ambient air in sufficient quantity to form a fuel/air mixture having an equivalence ratio greater than about 0.55 when mixed with the fuel. The fuel/air mixture is mixed with a supply of cooled combustion gases in sufficient quantity such that the oxygen content of the resulting air mixture is less than about 18 percent. The resulting air mixture is then passed into the combustor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.