New Developments In Nox Control - The Pilkington "3R" Process

There is increasing pressure from the regulatory authorities to reduce the emissions of the nitrogen oxides from glass plants by a significant amount. Exploiting its own technology, Pilkington originally developed the "3R" process for reducing these NOx emissions to below 550mg/m3 waste gas (=1.5kg/tglass) from its float glass furnaces. This process has now been demonstrated to be applicable to other types of regenerative furnaces.