ACTIVITY OF ALUMINUM PHOSPHATE FOR SELECTIVE CATALYTIC REDUCTION OF NITROGEN MONOXIDE WITH PROPENE OR PROPANE

抄録

The activity of AlPO₄ for C₃H₆-SCR-NO, C₃H₆-SCR-NO, and several related reactions were investigated and discussed by comparison with those of alumina and silica. The activity of AlPO₄ for C₃H₈-SCR-NO and C₃H₈-SCR-NO was lower than that of Al₂O₃, and silica was inactive. The activity differences between AlPO₄ and Al₂O₃ can be mainly ascribed to those for NO oxidation to NO₂. Over both AlPO₄ and Al₂O₃, the maximum NO conversion in C₃H₆-SCR-NO was located at lower temperature side than that in C₃H₈-SCR-NO. These results can be ascribed to activity differences for the oxidation of C₃H₆ and C₃H₈ with both O₂ and NO.