| abstract |
FIELD: water and air purification technology. n SUBSTANCE: invention relates to catalysts, articles and methods of cleaning exhaust gas formed during combustion. Disclosed is a method of reducing content of emissions of N 2 O in exhaust gas, involving contacting exhaust gas, containing NH 3 and inlet NO concentration, with SCR catalyst composition containing fine-porous zeolite having ratio of silicon dioxide to aluminum oxide (SAR), ranging from about 3 to about 15, and containing approximately 1–5 wt % exchange transition metal. n EFFECT: invention is oriented to improvement of ambient air quality, in particular to improvement of environmental characteristics of exhaust gases generated by power plants, gas turbines, internal combustion engines operating on lean mixture. n 16 cl, 2 dwg, 1 ex |