NOx Formation. Thermal NOx is a byproduct of the combustion process that is formed by industrial boilers and process heaters when burning natural gas (and other fuel gases with no bound nitrogen), where high flame temperatures cause nitrogen molecules from the combustion air to combine with oxygen to form nitric oxide.
Being an inert gas, Nitrogen protects against corrosion of inner walls of boiler tubes, condensers, and wetted parts within Power Plant applications by displacing oxygen and other residual molecules. In the past, high-pressure bottles as well as bulk liquid tanks have been the primary source for Nitrogen, but new technology has come into play.
In industrial boilers, NOx is primarily formed in two ways; thermal NOx and fuel NOx: Thermal NOx is formed when nitrogen and oxygen in the combustion air combine with one another at the high temperatures in a flame. Thermal NOx makes up the majority of NOx formed during the combustion of gases and light oils.
Boiler Combustion | CleanBoiler.org
Ultra Low NOx Boilers - Industrial Boiler & Mechanical
Custom manufacturer and turnkey systems integrator of industrial low nitrogen oxide (NOx) emission boilers. Capabilities include installation, designing, preventative maintenance, engineering and fabrication. Additional services such as repairing and retrofitting are offered. 24 hours emergency services are available. cUL® listed.
-------f ABSTRACT Industrial boiler data were analyzed to quantify the NOX measurements in terms of a single independent variable—fuel nitrogen content. The analyses showed that, in general, there was a high degree of correlation between NO and fuel nitrogen.
Jan 09, 2013 · Low-NOx Burners for Industrial Boilers Operators of industrial-size centralized hot-water- and steam-generating facilities on college, hospital, and government campuses are under increasing pressure to restrict nitrogen-oxide (NOx) emissions, as state environmental agencies enforce federal law intended to decrease respiratory-related health concerns.