| CeO2-CoO／ACF低温SCR烟气脱氮性能的研究 |
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| 引用本文： | 马倩,胡将军,李闯,张秋勉,陈熙.CeO2-CoO／ACF低温SCR烟气脱氮性能的研究[J].环境污染治理技术与设备,2010(4):899-903. |
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| 作者姓名： | 马倩 胡将军 李闯 张秋勉 陈熙 |
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| 作者单位： | [1]武汉大学资源与环境科学学院环境工程系,武汉430079 [2]武汉市环境卫生设计研究院,武汉430070 |
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| 摘 要： | 活性炭纤维（ACF）经硝酸处理后采用浸渍法制备了CeO2-CoO／ACF复合催化剂，测试了其在以氨气为还原剂的低温SCR过程中的催化活性，同时研究了金属氧化物浸渍顺序及负载量、催化剂煅烧温度、空速比（SV）、NH，／NO（摩尔比）、O2含量等因素对NO转化效率的影响。研究发现，负载量为10％的CeO2-CoO／ACF复合催化剂经煅烧后在120—240℃时具有很高的催化活性，并且在N0初始浓度为1000mg／m3、空速比（SV）为6000h～、NH3／NO为1．05、O：体积分数在3．0％时具有较高的NO转化效率。
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| 关 键 词： | 低温选择性催化还原CeO2一CoO／ACF NO转化率 |
Research on de-NO by low-temperature SCR based on CeO2-CoO/ACF |
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| MaQian Hu,Jiangjun Li Chuang Zhang Qiumian Chen Xi.Research on de-NO by low-temperature SCR based on CeO2-CoO/ACF[J].Techniques and Equipment for Environmental Pollution Control,2010(4):899-903. |
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| Authors: | MaQian Hu Jiangjun Li Chuang Zhang Qiumian Chen Xi |
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| Institution: | MaQian Hu Jiangjun Li Chuang Zhang Qiumian Chen Xi( Department of Environmental Engineering, School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China 2. Wuhan Environmental Sanitary Science Research and Design Institute, Wuhan 430070,China) |
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| Abstract: | The catalyst of CeO2-CoO/ACF was prepared by impregnating activated carbon fiber pretreated with concentrated nitric acid with metal salts. The activity of CeO2-CoO/ACF was studied at low temperature （120-240 ℃ ） selective catalytic reduction （SCR） of NO by ammonia. The influences of different soakage sequences and loadage, calcining temperature, space velocity, NH3/NO and the concentrations of 02 on the NO conversion were studied too. It was found that the catalyst of CeO2-CoO/ACF with the loadage of 10% showed higher NO conversion under the conditions of temperature 120 ~ 240 ℃, NO 1 000 mg/m3, space velocity 6 000 h^-1 ,NH3/NO 1.05 and O2 3.0%. |
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| Keywords: | low-temperaure selective catalytic reduction（SCR） CeO2-CoO/ACF NO conversion |
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