摘要
为了探讨大型循环流化床(CFB)锅炉增设脱硝设备的必要性和可行性,针对不同煤质的现场实测数据进行分析,可知大型CFB锅炉在不增加脱硝设备的情况下,NOx排放水平可以达到国家环保要求。为了达到超低水平NOx排放,通过理论分析,结合工程实践,认为CFB锅炉不适宜采用选择性催化还原法(SCR)脱硝技术,而在分离器区域采用选择性非催化还原(SNCR)脱硝技术可以实现。
For discussing the necessity and feasibility of adding the denitrification equipment on the large scale Circulating Fluidized Bed （CFB） boiler, the operation data were analysed for the CFB boiler fired different coal, and the NOx emission can meet the requirements of environmental protec- tion without the denitrification equipment. In the case of the very low NOx emission is required, based on the theoretical anlysis and project practice,the Selected Catalystic Reduction（SCR） deni- trification technology is not considered to be suitable for the CFB boiler, but Selected Non - Catalys- tic Reduction（SNCR） technology at cyclone area can realize effective denitrification in CFB boiler.
出处
《锅炉制造》
2010年第2期39-41,45,共4页
Boiler Manufacturing
关键词
循环流化床锅炉
选择性催化还原
选择性非催化还原
脱硝系统
circulating fluidized bed boiler
selected catalystic reduction
selected non - catalystic reduction
denitrification system
