Nitrogen oxide control in the flue gases of 16-ton steam coal-fired boilers
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To reduce nitrogen oxides in flue gas, the furnace ammonia injection method is used; however, the amount of ammonia water required is quite high. When the amount of ammonia water is reduced, the nitrogen oxide levels exceed the allowed limits. I’m not sure whether the location of ammonia injection is incorrect – is there any room for improvement?
Where did you spray it? . . How high is the temperature at the injection site