Abstract. The catalytic activity of Rh/CeO2–ZrO2 for NO reduction by C3H6 under stoichiometric conditions was found to depend strongly on the Ce/Zr composition. Rh/CeO2–ZrO2 with a Ce/Zr molar ratio of 50/50 (Rh/CZ-50/50) had the greatest activity; Ce/Zr = 74/26 (Rh/CZ-74/26), the least. The Rh/CZ-50/50 also showed specifically high intrinsic activity expressed in terms of turnover freq…
Abstract. A new concept of a novel ‘‘dual bed’’ configuration of NH3 and CO-SCR catalytic system (NH3-CO-SCR), comprising Cu/Beta as top catalyst bed for NH3-SCR andWO3/Ir/SiO2 as bottom catalyst bed for CO-SCR, is described in this article. The combined catalytic system provides high NO reduction efficiency, in a broad temperature range (160–600 oC). The NO conversion over the co…