Decomposition and Purification of NOx

摘要

Nitrogen oxide (NOx) is an air pollutant, and is increasingly subject to tougher emission controls around the world. A range of technologies have beeing developed for purifying NOx, principally encompassing exhaust gas treatment equipment for diesel vehicles.rnNOx is a collective term for nitrogen oxides such as nitric oxide (NO) and nitrogen dioxide (NO_2). Controls on NOx emissions are being strengthened globally, since NOx is an air pollutant that causes photochemical smog and acid rain.rnAs was explained on page 27, exhaust gas from diesel engines contains NOx and PM, and is the major source of NOx. To purify these pollutants, a broad array of purification technologies are being developed in addition to the methods described above.