中国电力2012，Vol.45Issue(1)：45-49,68,6.
不同运行时间烟气脱硝催化剂性能对比分析
Comparative analysis of de-NOx catalysts with different operation-time
摘要
Abstract
The de-NO, catalysts with different operation-time were adopted. The comparative analysis on properties of the catalysts was made. The test and the analysis of SCR with different catalysts of 10 080,25 145,30 288 and 40 368 h were carried out. The results show that the last two ones, 30 288 (C3) and 40 368 h (C4), have unsatisfactory denitration rate which is lower than 60 % after 30 000 hours operation. Their performances cannot meet designed demand of the power plant. Moreover, the techniques of XRD, SEM, BET, FT-IR, IC and ICP-MS were used to characterize the objectives with different operation-time. The results indicate that the aggregations cannot be found remarkably, and the crystal form of carrier maintains the anatase style. However, the data from SEM show that the active compound on the surface of the catalyst runs off along with the operation-time, which is consistent with the analysis obtained from FT-IR. In the meantime, the channels and mesopores of catalysts are influenced badly with the long operation-time. Besides, there are also some water-soluble ions and trace heavy metals deposited on the surface of the catalysts.关键词
燃煤电厂/烟气脱硝/选择性催化还原(SCR)/催化剂Key words
coal fired power plant/ flue gas denitrification/ selective catalyst reduction (SCR)/ catalyst分类
资源环境引用本文复制引用
商雪松,陈进生,胡恭任..不同运行时间烟气脱硝催化剂性能对比分析[J].中国电力,2012,45(1):45-49,68,6.基金项目
国家科技支撑计划资助项目(2008BAC32B03) （2008BAC32B03）
福建省面上基金资助项目(2011J01060) （2011J01060）
