boiler combustion flue gas generation post-flow

Boiler Combustion | CleanBoiler.org

Many times water or steam injection is used in conjunction with other NOx control methods such as burner modifications or flue gas recirculation. Flue Gas Recirculation. Flue gas recirculation or FGR is the most effective method of reducing NOx emission from industrial boilers with inputs below 100 MMBtu/hr. FGR entails recirculating a portion of relatively cool exhaust gases back into the combustion

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