摘要
以离子交换法制备的In系催化剂为基础,通过载体的筛选,离子交换时间、溶液浓度以及煅烧温度的优化,得到高催化活性的In/H-Beta催化剂。并采用FT-IR、NH 3-TPD、H 2-TPR、XPS、BET等表征技术对In系催化剂进行表征,从催化剂的骨架结构、表面酸性及氧化还原性等性质分析催化剂的活性。结果表明,载体为Beta、离子交换时间为8 h、离子交换液浓度为0.033 M、煅烧温度为500℃制备的In/H-Beta催化活性最好,560℃时NO x的去除率最大约92%。
Based on the in catalyst prepared by ion exchange method,the In/H-Beta catalyst with high catalytic activity was obtained through the selection of support,the optimization of ion exchange time,the concentration of solution and the calcination temperature.FT-IR,NH 3-TPD,H 2-TPR,XPS,BET and other techniques were used to characterize the in catalyst.The activity of the catalyst was analyzed from the framework structure,surface acidity and redox properties of the catalyst.The results showed that when the carrier is Beta,ion exchange time of 8 h,the concentration of ion exchange solution is 0.033 M,the calcination temperature is 500℃,the catalytic activity of In/H-Beta is the best,and the removal rate of NO x is about 92%at 560℃.
作者
朱泳吉
朱荣淑
张改革
ZHU Yong-ji;ZHU Rong-shu;ZHANG Gai-ge(Shenzhen Key Laboratory of Organic Pollution Prevention and Control,Environmental Science and Engineering Research Center,Harbin Institute of Technology(Shenzhen),Shenzhen 518055,China;International Joint Research Center for Persistent Toxic Substances,Harbin Institute of Technology(Shenzhen),Shenzhen 518055,China).)
出处
《环境生态学》
2019年第2期47-52,共6页
Environmental Ecology
基金
深圳市知识创新计划项目“垃圾焚烧发电烟气脱硝CH_4-SCR催化剂研究”(JCYJ20180507183621817)
