SELECTIVE CATALYTIC REDUCTION OF NO WITH HYDROCARBONS OVER Pt/AlPO₄ AND Pt/Al₂O₃: COMPARISON OF PROPENE WITH PROPANE AS A REDUCTANT

Abstract

The catalytic activity of Pt (0.5 wt%)/AlPO₄ for C₃H₆-NO-O₂ was clearly higher than that of Pt (0.5 wt%)/Al₂O₃ in terms of maximum NO conversion and temperature giving the maximum NO conversion, but the former's activity for C₃H₈-NO-O₂ was much lower than the latter's. The feature that Pt (0.5 wt%)/AlPO₄ is much less active for C₃H₈-NO-O₂ was also observed in case of Pt (0.5 wt%)/SiO₂, indicating that the surface and catalytic properties of both supports are partly similar each other.