火电厂SCR脱硝催化剂技术研究进展
|
摘要
选择性催化还原(SCR)法是目前火电厂处理烟气中NOx的主要方法。本文对SCR技术及脱硝催化剂进行了综述,重点介绍了SCR脱硝工艺的影响因素、SCR在火电机组实际运行中的问题及解决策略、SCR催化剂的失活及处理方案。
At present,selective catalytic reduction( SCR) is the main method of De-NOx in a thermal power plant. In this paper,the SCR technology and De-NOx catalysts are reviewed,then the influencing factors of the SCR De-NOx process,the problems and solving strategies of SCR in the actual operation of thermal power plant,the deactivation of SCR catalyst and treatment program are introduced.
At present,selective catalytic reduction( SCR) is the main method of De-NOx in a thermal power plant. In this paper,the SCR technology and De-NOx catalysts are reviewed,then the influencing factors of the SCR De-NOx process,the problems and solving strategies of SCR in the actual operation of thermal power plant,the deactivation of SCR catalyst and treatment program are introduced.
引文
[1]李春雨.SCR脱硝催化剂研究及产业现状分析[J].能源与环境,2014(1):60-64.
[2]Busca G,Lietti L,Ramis G,et al.Chemical and mechanistic aspects of the selective catalytic reduction of NOxby ammonia over oxide catalysts:A review[J].Applied Catalysis B:Environmental,1998,18(1/2):1-36.
[3]张汝松,李志国,张雷.选择性催化还原脱硝催化剂生产技术[J].工业催化,2011,19(8):7-10.
[4]Xu H D,Wang Y,Gao Y,et al.Catalytic performance of acidic zirconium-based composite oxides monolithic catalyst on selective catalytic reduction of NOxwith NH3[J].Chemical Engineering Journal,2014,240:62-73.
[5]Madia G,Elsener M,Koebel M,et al.Thermal stability of vanadia-tungsta-titania catalysts in the SCR process[J].Applied Catalysis B:Environmental,2002,39:181-190.
[6]Reiche M A,Burgi T,Baiker A,et al.Vanadia and tungsta grafted on Ti O2:influence of the grafting sequence on structural and chemical properties[J].Applied Catalysts A:General,2000,198(1/2):155-169.
[7]邓涛,陈冬林,黎莺,等.钒钛基系列氨法SCR催化剂失活机理探析及其预防方法[J].能源与环境,2012(1):36-42.
[8]茅国庆,孟令航,庄亚洲,等.平板式脱硝催化剂应用于燃煤电厂的优势[J].电力建设,2013,34(2):87-90.
[9]阮东亮,盘思伟,韦正乐,等.砷对商业V2O5-WO3/Ti O2催化剂脱硝性能的影响[J].化工进展,2014,33(4):925-946.
[10]Wu X D,Yu W C,Si Z C,et al.Chemical deactivation of V2O5-WO3/Ti O2SCR catalyst by combined effect of potassium and chloride[J].Sci Eng,2013,7(3):420-427.
[11]Zheng Y J,Jensen A D,Johnsson J E.Deactivation of V2O5-WO3-Ti O2SCR catalyst at a biomass-fired combined heat and power plant[J].Applied Catalysis B:Environmental,2005,60(3/4):253-264.
[12]云端,宋蔷,姚强.V2O5-WO3/Ti O2SCR催化剂的失活机理及分析[J].煤炭转化,2009,32(1):91-96.
[13]王春兰,宋浩,韩东琴.SCR脱硝催化剂再生技术的发展及应用[J].技术与工程应用,2014(4):22-25.
[14]刘红辉,刘伟,黄锐,等.燃煤电厂SCR脱硝催化剂失活及其再生性能研究[J].中国电力,2014,47(4):139-143.
[2]Busca G,Lietti L,Ramis G,et al.Chemical and mechanistic aspects of the selective catalytic reduction of NOxby ammonia over oxide catalysts:A review[J].Applied Catalysis B:Environmental,1998,18(1/2):1-36.
[3]张汝松,李志国,张雷.选择性催化还原脱硝催化剂生产技术[J].工业催化,2011,19(8):7-10.
[4]Xu H D,Wang Y,Gao Y,et al.Catalytic performance of acidic zirconium-based composite oxides monolithic catalyst on selective catalytic reduction of NOxwith NH3[J].Chemical Engineering Journal,2014,240:62-73.
[5]Madia G,Elsener M,Koebel M,et al.Thermal stability of vanadia-tungsta-titania catalysts in the SCR process[J].Applied Catalysis B:Environmental,2002,39:181-190.
[6]Reiche M A,Burgi T,Baiker A,et al.Vanadia and tungsta grafted on Ti O2:influence of the grafting sequence on structural and chemical properties[J].Applied Catalysts A:General,2000,198(1/2):155-169.
[7]邓涛,陈冬林,黎莺,等.钒钛基系列氨法SCR催化剂失活机理探析及其预防方法[J].能源与环境,2012(1):36-42.
[8]茅国庆,孟令航,庄亚洲,等.平板式脱硝催化剂应用于燃煤电厂的优势[J].电力建设,2013,34(2):87-90.
[9]阮东亮,盘思伟,韦正乐,等.砷对商业V2O5-WO3/Ti O2催化剂脱硝性能的影响[J].化工进展,2014,33(4):925-946.
[10]Wu X D,Yu W C,Si Z C,et al.Chemical deactivation of V2O5-WO3/Ti O2SCR catalyst by combined effect of potassium and chloride[J].Sci Eng,2013,7(3):420-427.
[11]Zheng Y J,Jensen A D,Johnsson J E.Deactivation of V2O5-WO3-Ti O2SCR catalyst at a biomass-fired combined heat and power plant[J].Applied Catalysis B:Environmental,2005,60(3/4):253-264.
[12]云端,宋蔷,姚强.V2O5-WO3/Ti O2SCR催化剂的失活机理及分析[J].煤炭转化,2009,32(1):91-96.
[13]王春兰,宋浩,韩东琴.SCR脱硝催化剂再生技术的发展及应用[J].技术与工程应用,2014(4):22-25.
[14]刘红辉,刘伟,黄锐,等.燃煤电厂SCR脱硝催化剂失活及其再生性能研究[J].中国电力,2014,47(4):139-143.