| CeO_x/AC催化剂NH_3选择性催化还原NO |
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| 引用本文： | 周愉千,刘超,宋鹏,郭家秀,尹华强,楚英豪.CeO_x/AC催化剂NH_3选择性催化还原NO[J].环境污染治理技术与设备,2012(8):2720-2724. |
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| 作者姓名： | 周愉千 刘超 宋鹏 郭家秀 尹华强 楚英豪 |
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| 作者单位： | [1]四川大学建筑与环境学院,成都,610065 [2]四川大学国家烟气脱硫工程技术研究中心,成都610065 |
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| 基金项目： | 国家自然科学基金资助项目（50808127） |
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| 摘 要： | 以用不同浓度的HNO3预处理后的椰壳活性炭为载体,负载铈制备SCR催化剂。利用比表面积分析仪（BET）、X射线衍射（XRD）、扫描电镜（SEM）和催化剂活性实验,探讨了不同变量如金属离子的分布、焙烧温度和载体属性对催化活性的影响。结果表明,HNO3处理后,经500℃焙烧金属铈负载量为7%的催化剂表现出优良的催化性能。在90℃时,NO转化率在90%以上,随温度升高,达到接近100%的NO转化率。
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| 关 键 词： | CeOx 选择性催化还原（SCR） 活性炭 |
CeOx/AC catalysts for selective catalytic reduction of NO by NH3 |
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| Zhou Yuqianl Liu Chao,Song Peng,Guo Jiaxiu,Yin Huaqlang,Chu Yinghao.CeOx/AC catalysts for selective catalytic reduction of NO by NH3[J].Techniques and Equipment for Environmental Pollution Control,2012(8):2720-2724. |
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| Authors: | Zhou Yuqianl Liu Chao Song Peng Guo Jiaxiu Yin Huaqlang Chu Yinghao |
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| Institution: | 1 2 (1. College of Architecture and Environment, Siehuan University, Chengdu 610065, China; 2. National Engineering Technology Research Center for Flue Gas Desulfurization, Siehuan University, Chengdu 610065, China) |
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| Abstract: | Coconut shell activated carbon pretreated by different concentrations of HNO3 was used as sup- port and loaded with metal cerium to obtain SCR catalysts. The specific surface area measurement （BET） , X-ray diffraction （XRD） , scanning electron microscope （SEM） and catalytic activity experiments were carried out to study the effect of different variables such as metal dispersion, calcination temperature and support properties. The results show that catalysts pretreated by nitric acid , calcinated at 500~C and loaded with 7% of the metal cerium exhibit excellent catalytic performance. The NO conversion rate of catalyst reaches over 90% at 90%, and nearly gets to 100% when the temperature gradually increases. |
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| Keywords: | CeOx seletive catalytic reduction（SCR） activated carbon |
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