Controlling NOx Emissions From Steam Generators

The information presented is directed to those individuals concerned with reducing nitrogen oxides (NO _x ) emissions from gas, oil, or coal fired utility steam generators. First, this paper presents NO _x emission data obtained in the testing of tangentially fired utility boilers; second, it relates these data to the general body of information developed by other investigators in the areas of theoretical analysis and bench scale and full scale testing; and finally, it discusses current design practice in relation to NO _x emission control and the continuing R&D effort required to assure acceptable control technology.