Search results with tag "Flue gas recirculation"

1.4 Natural Gas Combustion - US EPA

www3.epa.gov

In a flue gas recirculation (FGR) system, a portion of the flue gas is recycled from the stack to the burner windbox. Upon entering the windbox, the gas is mixed with combustion air prior to being fed to the burner. The FGR system reduces NOx …

Natural, Fuel, Natural gas, Recirculation, Flue gas, Flue gas recirculation

1.3 Fuel Oil Combustion

www3.epa.gov

employed during boiler operation. Low excess air (LEA) firing, flue gas recirculation (FGR), staged combustion (SC), reduced air preheat (RAP), low NOx burners (LNBs), burning oil/water emulsions (OWE), or some combination thereof may result in NOx reductions of 5 to 60 percent. Load reduction (LR) can likewise decrease NOx production. Nitrogen ...

Fuel, Recirculation, Flue gas recirculation