REDUCTION OF NITROGEN(I) OXIDE WITH CARBON MONOXIDE AND C3-C4 ALKANES ON Fe-CONTAINING ZEOLITE CATALYSTS

It is shown that in the presence of reducing agents . light alkanes (C3-C4) or carbon monoxide . the temperature for the elimination of nitrogen(I) oxide over iron-containing zeolite catalysts of various structural types (Y, M, pentasil) is reduced by 70-150 °C. In the presence of excess oxygen (SCR process conditions) a greater conversion of N2O(90-94%) is achieved at even lower temperatures (up to 50-150 °C less) with the use of hydrocarbons, and the activity of the catalysts correlates with the presence of strongly acidic B centers on their surfaces.