Vai trò của oxi trong phản ứng khử chọn lọc NOx bằng C3H6 trên xúc tác Cu/ZSM-5

Abstract

The role of oxygen in selective reduction of NO_x by C₃H₆ in the presence of oxygen over Cu/ZSM-5 catalyst was investigated by the temperature programmed surface reaction (TPSR). It was found that oxygen enhances the oxidation of NO by C₃H₆ to NO₂, but also consumes C₃H₆ as an oxidative agent causing a decrease in the decomposition of NO_x. The present results allow demonstrating the reaction mechanism of selective reduction of NO_x by C₃H₆ in real conditions.