Air pollution control of oxides of nitrogen

摘要

Apparatus for removing nitrogen oxides from a gaseous mixture containing the same as well as oxygen comprising a vessel containing a knitted wire mesh packing material of stainless steel containing at least 8% Ni and having a diameter of from 0.003 to 0.015 inches, means for countercurrent washing said knitted wire mesh, means to introduce said gaseous mixture and means to mantain a residence time of 3.5 to 15 seconds.