摘要
通过等体积浸渍法合成一系列M-MnO_(x)/γ-Al_(2)O_(3)催化剂(M=Ce、Co、Cr、Fe),用于低温催化臭氧共同氧化NO和邻二甲苯(o-C_(8)H_(10))的研究,试验发现,Fe/Mn催化剂表现出最高的催化氧化活性,最佳的温度区间为60~100℃;在NO与邻二甲苯共同存在时,臭氧优先将NO氧化为NO_(2),之后NO_(2)深度氧化与邻二甲苯初步氧化同时进行,最后多余的臭氧将邻二甲苯初步氧化生成的小分子有机物氧化为CO与CO_(2);催化剂对不同初始污染物浓度适应性良好,研究结果可为臭氧一体化脱除烟气污染物的工业化推广应用提供依据。
A series of M-MnO_(x)/γ-Al_(2)O_(3) catalysts(M=Ce,Co,Cr,Fe)were synthesized by isometric impregnation,which is used to NO and o-xylene(o-C_(8)H_(10))catalytic oxidation with ozone at low temperature.Fe/Mn catalyst shows the highest catalytic oxidation activity and the best temperature range is 60~80℃.It is found that when NO and o-xylene co-exist,ozone oxidizes NO to NO_(2) preferentially,then the deep oxidation of NO_(2) and the preliminary oxida-tion of o-xylene are carried out at the same time,and finally,the excess ozone oxidizes the small molecular organics generated by the preliminary oxidation of o-xylene to CO and CO_(2).In addition,the catalyst adapts well to different initial pollutant concentrations and has great significance for industrial promotion.
作者
陈李春
刘佩希
朱燕群
何勇
唐海荣
王智化
CHEN Li-chun;LIU Pei-xi;ZHU Yan-qun;HE Yong;TANG Hai-rong;WANG Zhi-hua(State Key Laborctory of Clean Energy Utilization,Zhejiang University,Hangzhou 310027,China)
出处
《能源工程》
2022年第4期43-47,共5页
Energy Engineering
基金
国家自然科学基金资助项目(52125605)
中央高校基本科研业务费专项资金资助(2021FZZX001-11)。
