Reducing Nox Emissions In Glass Furnaces

Oxygen-Enriched Air Staging (OEAS) is a retrofit NOx control technology available for end- and cross-fired regenerative glass furnaces encompassing all segments of the glass industry. NOx reduction levels of 30-75%, depending on initial conditions, can be achieved with a limit of about 1.0kg NOx per tonne of glass for container glass furnaces. In the second of a two-part article, the author describes how using oxygen-enriched air staging can lead to significant NOx reductions in regenerative glass furnaces.