先进再燃添加剂脱硝增效机理及其研究进展  

The Synergistic Mechanism and Recent Study of Advanced Reburning Additive on NOx Removal

作　　者：高攀[1] 路春美[1] 

机构地区：[1]山东大学能源与动力工程学院,山东济南250061

出　　处：《锅炉技术》2007年第5期68-72,共5页Boiler Technology

基　　金：山东省自然科学基金资助项目(Z2006F04)

摘　　要：先进再燃是在再燃基础上将氨基助剂喷入富燃料再燃区的一种脱硝技术,可实现85%以上的脱硝效率,而成本不到选择性催化还原技术的1/2,具有很好的技术优势。加入添加剂可以较大幅度地提高先进再燃脱硝效率,介绍了碱金属盐、含铁化合物、含氧有机化合物、醋酸盐4类先进再燃添加剂;分析了其脱硝增效机理并比较了不同添加剂的脱硝效果,可为先进再燃脱硝技术的试验研究和实际应用提供参考。Advanced reburning（AR） can reach 85% efficiency of NOx removal by inject ammonia or urea into reburning zone. AR has great technology advantage because its h NOx removal efficiency and low cost which is almost half of SCR. Additive can improve ing igh rate of NOx reduction greatly. Four different kinds of additives, alkali metals-containing, iron, oxygenated compounds, CMA/CM, have been introduced and the different synergistic mechanism have been discussed. All of these can be supplied references for experiment study and actual adhibition of AR.

关 键 词：先进再燃 添加剂 脱硝机理 增效机理 

分 类 号：TK16[动力工程及工程热物理—热能工程]