Activated carbon will typically have a loading capacity of 0.3 lbs of VOC per pound of carbon at 100 ppm and 0.15 lbs of VOC per pound of carbon at 5 ppm. At higher flowrates, carbon adsorption-incineration combinations may be needed. NOx Emissions Nitrogen oxides are products of all conventional combustion processes. They are also a target of many environmental regulations, with good reason. Ammonia is used due to its tendency to react only with the contaminants and not with the oxygen in the gas stream.
Ammonia is injected by means of compressed gas or steam carriers.
However, this process does not use a catalyst to aid the reaction. Rather, tightly controlled temperatures are used to steer the reactions. Below the optimum temperature range, ammonia does not fully react and can be released in the flue gas. Feature Articles For Your Information ChE in Everyday Life ChE in Medicine Alternative Energy Proc. This site is maintained by Christopher M. A. Haslego,BSChE, an Alumnus of West Virginia University.