张惠,方和良,李伟,谭天恩,郑小明

• 1:浙江大学环境与资源学院环境工程研究所
• 2:浙江大学催化研究所
• 3:浙江大学环境与资源学院环境工程研究所
• 4:浙江大学环境与资源学院环境工程研究所

摘要(Abstract)：

采用高比表面积、抗硫、抗湿的新型USY分子筛为载体制备MnOx催化剂,考察了以CH4为还原剂,在不同Mn含量MnOx催化剂上,选择性催化还原NOx的性能和有关影响因素。研究表明:5%(wt.)的Mn/H-USY具有最高的NO选择性还原活性,在500℃时NOx达最大转化率20.8%;分段填装Mn/H-USY和Ni/H-USY催化剂可显著拓宽活性温度范围,促进NO转化率(最高转化率可达24.4%),降低N2O生成量。本实验中使用傅立叶红外分析仪进行在线检测反应物与产物浓度。

关键词(KeyWords)： 氮氧化物;甲烷;选择催化还原(SCR);极稳定Y型沸石(USY)

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(20476095)。

作者(Author): 张惠,方和良,李伟,谭天恩,郑小明

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