15
Thermal Nitrogen Oxide (NOx) Control
Joseph Colannino
Colannino Associates, Oceanside, California
15.1 Device Type
The control of nitrogen oxides (NOx) using thermal methods encompasses a variety of devices. This chapter focuses on NOx and its control using combustion modifications, post-combustion thermal and catalytic methods, and combinations thereof.
15.2 Typical Applications and Uses: Combustion Sources
Various combustion sources produce NOx. Boilers use a burner to combust the fuel and release heat. The heat boils water and generates steam. Larger boilers usually contain the water and steam inside tubes (water-tube boilers) surrounding a firebox. Some smaller boilers have a combustion tunnel surrounded by water (fire-tube ...
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