摘要
循环流化床因其低温燃烧和分段燃烧特点,能有效控制NOx的排放量。随着环保法规对电厂排放要求越来越严格,循环流化床锅炉采取措施进一步降低氮氧化物的排放是很有必要的。文中以某电厂300MW循环流化床锅炉为例,针对当前煤电市场的变化,燃用煤种为非设计煤种,导致部分时段氮氧化物的排放浓度超标的实际情况,在CFB锅炉上进行了SNCR脱硝技术研究,实践证明,通过脱硝改造和运行优化,可以有效地降低氮氧化物的排放浓度,并获得可观的环境效益和经济效益。
Circulating fluidized bed(CFB) can effectively control the emission of NOx due to its characteristics of low temperature combustion and sectional combustion. With the stricter and stricter requirements of environmental protection regulations on power plant emissions,it is necessary for CFB boilers to take measures to further reduce the emission of nitrogen oxides. Taking a 300 MW circulating fluidized bed boiler in a power plant as an example,in view of the current changes in the coal and electricity market,the non-designed types of coal used in circulating fluidized bed boilers cause the emission concentration of nitrogen oxides to exceed the standard in some periods of time. The research of SNCR denitrification technology on CFB boilers has been carried out. Practice has proved that the denitrification transformation and operation are excellent. It can effectively reduce the emission concentration of nitrogen oxides and obtain considerable environmental and economic benefits.
作者
葛如明
GE Ru-ming(Shanxi Shuozhou Shanxi Pingshuo Coal Gangue Power Generation Co.,Ltd.,Shuozhou 036800,Shanxi Province,China)
出处
《应用能源技术》
2019年第8期35-37,共3页
Applied Energy Technology
关键词
NOx
环保
流化床
运行优化
效益
NOx
Environmental Protection
Fluidized Bed
Operation Optimization and Benefit
