Reaction Kinetics and Catalysis Letters, Vol.81, No.2, 265-272, 2004
Two-stage catalytic system of Sn/Al2O3 and Pt/Al2O3 for no reduction by propene in lean conditions
The Pt/Al2O3, Sn/Al2O3 catalysts were prepared by the single sol-gel method. The two-stage Sn/Al2O3 and Pt/Al2O3 catalyst in series for NO reduction with propene were investigated. The coexistence of water vapor enhanced the activity at medium temperature of 300-400degreesC, and the NO conversion was above 50% at 225 to 500degreesC even in the presence of water vapor and SO2.