Iyo nitrogen oxide mune gasi rekupopotera remugungwa injini jenareta gasi rinoumbwa neoxidation yenitrogen muhumburumbira pakupisa kwakanyanya, iyo inonyanya kuumbwa nenitric oxide uye nitrogen dioxide.Green Valley kuchengetedza kwezvakatipoteredza yakagadzira seti ye "grvnes" SCR denitration system yekurapwa kwenitrogen oxides mumarara gasi anoburitswa nemajenareta emugungwa mushure memakore ekutsvaga kunorwadza.Mushure mekugadzirwa kwakakosha, iyo sisitimu inogona kuramba ichiona kushanda kwepamusoro-soro pasi pemamiriro ekusagadzikana kwekupisa tembiricha uye gasi mhando;Zvikamu zvakakosha zvinogona kumirisana nekusachena kwakajairwa mugasi remarara uye kuve nechokwadi chekushanda kwakagadzikana kwenguva refu kwehurongwa.