火电厂脱硝改造技术路线及方案研究

Study on roadmap and schemes of denitration retrofit technology in thermal power plant

介绍了锅炉低氮燃烧技术及烟气脱硝技术的分类。通过技术经济分析的方法研究了火电厂脱硝改造的技术原则及应遵循的技术路线;并以锅炉低氮燃烧技术加SCR烟气脱硝技术组合改造为例进行了技术方案讨论,涉及锅炉部分的低氮燃烧改造、空预器改造以及SCR烟气脱硝部分的还原剂选择、催化剂选择、SCR入口参数等。

The low NO combustion and flue gas denitrification technology are presented. The basic rules,technical roadmap and main technical schemes are researched and determined by way of technical and economic analy- sis,which denitration retrofit should be followed. For low NO combustion plus SCR flue gas denitration combined technical roadmap,the technical program is discussed and presented,involving low - NO burner,air preheater and SCR imlet parameter.