A method for obtaining ultra-low nox - emissions of with high turbine inlet temperatures operating gas turbines

摘要

A method for reduced no.sub.x - combustion, and the kinetic rate of a nox - formation in the case of a given combustion temperature is reduced, comprising the steps of:a. providing a supply of fuel to a gas turbine burner (14);example, obtain a supply of ambient air in a sufficient amount to form a fuel - / air mixture with an equivalent ratio greater than about 0,55, if it is mixed with the fuel;c. obtain a supply of cooled combustion gases in an amount sufficient that, when they are mixed with the air, the oxygen content of the resulting air mixture is less than 18 percent;that mixing of the air with the cooled combustion gases; ande. feeding of the air mixture to the burner (14).