Minimization Of Nox Emissions With Improved Oxy-Fuel Combustion: Controlled Pulsated Combustion

Oxy-fuel combustion has been recognized as an effective method for reduction of NOx emissions. Reduction in NOx beyond that realized with oxy-fuel combustion may be desired because of nitrogen coming from sources other than the combustion air, such as an uncontrolled influx of noncombustion air in older melters, an unusually high nitrogen content in natural gas supply, nitrogen contained in a noncryogenic oxygen supply, nitre in batch, or when optimized NOx reduction will provide emissions credits of use elsewhere. Air Liquide has worked to improve on the emissions reductions realized by oxy-fuel combustion.