废烟气脱硝催化剂资源回用载体的品质及特性研究  

Research on the Quality and Characteristics of Carriers for Resource Reuse of Waste Flue Gas Denitration Catalyst

作　　者：华晨飞 朱林[1,2] 姚杰 庄柯 HUA Chenfei;ZHU Lin;YAO Jie;ZHUANG Ke(Jiangsu Atmospheric Environment and Equipment Technology Collaborative Innovation Center,Nanjing University of Information Science&Technology,Nanjing 210044,China;Guodian Science and Technology Research Institute Co.,Ltd.,Nanjing 210031,China;Guodian Environmental Protection Research Institute Co.,Ltd.,Nanjing 210031,China;Jiangsu Engineering Research Center for Denitration Catalyst Innovation and Information Service,Nanjing 210000,China)

机构地区：[1]南京信息工程大学江苏省大气环境与装备技术协同创新中心,江苏南京210044 [2]国电科学技术研究院有限公司,江苏南京210031 [3]国电环境保护研究院有限公司,江苏南京210031 [4]江苏省脱硝催化剂创新与信息化技术服务工程研究中心,江苏南京210000

出　　处：《中国电力》2021年第2期197-204,共8页Electric Power

基　　金：国家重点研发计划资助项目(大气污染成因与控制技术研究,2016YFC0208102)。

摘　　要：选取3种资源回用钛基载体和1种新鲜钛基载体,采用激光粒度分析仪、X射线荧光(XRF)光谱分析仪、电感耦合等离子(ICP)光谱发生仪、BET测试法、压汞仪等方式进行检测分析,研究回用钛基载体与新鲜钛基载体的差异。进一步以这些回用钛基载体及新鲜钛基载体为原料,通过活性组分负载与挤出成型的方式制备得到成品催化剂,并对成品催化剂的主要成分与微量元素含量、比表面积、机械强度、脱硝效率和活性进行检测。结果显示,与新鲜钛基载体相比,资源回用钛基载体的粒径分布较差,比表面积较低,比孔容低,含有更高的有毒元素,对相应的催化剂成品造成影响,最终导致催化剂脱硝效率和活性较低。In this study, three resource-recycled titanium-based carriers and one fresh titanium-based carrier were selected and analyzed to study the differences between these two types of carriers by virtue of laser particle size analyzer, X-ray fluorescence(XRF) analyzer, inductive coupled plasma(ICP) emission spectrometer, BET testing method and mercury intrusion porosimeter, etc.Furthermore, the above four carriers were used as raw materials to prepare finished catalyst products through active component loading and extrusion molding. Then the main components and trace element contents, specific surface area, mechanical strength,denitration efficiency and activity were tested respectively in the finished catalysts. The results show that, compared with fresh titanium-based carriers, the resource-recycled titanium-based carriers have more uneven particle size distribution, smaller specific surface area, less specific pore volume, and higher contents of toxic elements, which will affect the qualities of the corresponding finished catalysts, and eventually result in low denitration efficiency and activity.

关 键 词：SCR脱硝 催化剂 脱硝效率 活性 资源回用 钛基载体 

分 类 号：X773[环境科学与工程—环境工程]