不同母体制备的金属离子交换ZSM-5分子筛上C_3H_6选择催化还原NO反应的研究

Selective catalytic reduction of nitrogen monoxide with propene on metal ion-exchanged ZSM-5 zeolites

研究了由钠型及氢型ＺＳＭ－５母体制备的金属离子交换分子筛在过量氧存在下丙烯选择催化还原ＮＯ的反应。发现反应活性及活性温度范围取决于分子筛母体与金属离子的种类。在各种金属离子交换分子筛催化剂中，钴离子交换ＣｏＨ－ＺＳＭ－５具有最高的活性，且随钴离子交换度的增加反应活性亦随之增加。

he selective catalytic reduction of nitrogen monoxide with propene in the presence of oxygen has been studied over various metal ion-exchanged ZSM-5 zeolites. It was found that the catalytic properties were changed obviously with the type of parent zeolite, and metal ion. Among the samples tested, CoH-ZSM-5 showed the highest activity, and the activity were increased with the degree of ion exchanged. 