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复合金属氧化物选择性催化还原NO_x的研究
Research on mixed metal oxide catalyst for NO_x removing
【摘要】 用浸渍法制备了催化剂Cu-Ag-Co-O/堇青石和Cu-Ag-Co-O/SiO2/堇青石,考察了温度、空速等对催化剂活性的影响,并对其进行了BET、XRD、XPS、SEM等表征。催化结果表明,催化剂活性随铜负载量的增加而增加,随空速的增加而降低,随比表面积的增大而增大。
【Abstract】 The mixed metal oxide catalysts of Cu-Ag-Co-O/ corderite and Cu-Ag-Co-O/ silicon dioxide / corderite were prepared by impregnation method.Effects of temperature and space velocity were investigated.The samples were characterized by BET,XRD,XPS and SEM techniques.The results showed that activity of the catalysts increased with copper loadings but decreased with GHSV.
【关键词】 堇青石蜂窝陶瓷;
选择性催化还原;
NO;
复合金属氧化物;
【Key words】 corderite honeycomb; selective catalytic reduction; nitric oxide; mixed metal oxide;
【Key words】 corderite honeycomb; selective catalytic reduction; nitric oxide; mixed metal oxide;
【基金】 哈尔滨工程大学校内基础研究基金资助项目(HEUF04065)
- 【文献出处】 化学工程师 ,Chemical Engineer , 编辑部邮箱 ,2007年01期
- 【分类号】X511
- 【被引频次】7
- 【下载频次】171