【作者】 邢英； 尹召花； 王忠卫； 于青；

【Author】 Ying Xing;Zhaohua Yin;ZhongWeiWang;Qing Yu;College of Material Science and Technology,Shandong University of Science and Technology;

【机构】 山东科技大学材料科学与工程学院；

【摘要】 NOx是一种形成酸雨、腐蚀建筑物、危害人体健康的大气污染物。氢气选择催化还原(H2-SCR)是消除氮氧化物的有效方法。本文采用浸渍法以ZSM-5为载体制备了一系列负载单金属Pd以及Pd-M双金属的催化剂。在富氧条件下,以H2为还原剂,研究NOx还原反应活性。结果显示,Pd/ZSM-5在低温下没有活性,在Pd/ZSM-5中添加某些第二金属有助于提高低温反应活性。更多还原

【Abstract】 NOx are the main air pollutants,which result in acid rain,corrosion buildings,harm human health.Selective catalytic reduction of NOx by Hydrogen(H2-SCR) is the most effectiveway of nitrogen oxides abatement.In this paper,a series of single palladium and bi-metal catalysts were incorporated into ZSM-5 zeolite through impregnation,and their performances in H2-SCR were studied under excess oxygen.Results showed that Pd/ZSM-5 had no activity at low temperature,while the addition of second metal could significantly enhanced the activity.更多还原