摘要
SCR装置催化剂出口NOx的浓度偏差会明显影响催化剂的寿命并增加锅炉引风机的电耗,甚至影响机组的可用率。介绍了火电厂SCR装置运行优化的注意事项。实践表明,通过对喷氨系统的优化调节,可以明显改善出口的NOx分布、并降低氨的逃逸。在SCR装置优化设计的前提下,应通过运行优化,控制出口NOx的相对标准偏差在20%以内。
The catalyst service life will decrease and induced fans power consumption will increase because of NOx content deviation for SCR reactor. The necessity and method of optimization operation for power plant SCR system are introduced. With a 600 MW unit SCR system as examples, the optimization operation test is introduced. And matters need attention during optimization operation is also introduced. NOx content deviation and NH3 escapement will decrease by optimization operation for SCR system. And NOx content deviation should below 20 %.
出处
《锅炉技术》
北大核心
2008年第5期60-63,共4页
Boiler Technology
关键词
火电厂
SCR
运行
优化
power plant
SCR
operation
optimization
