热力发电Issue(7)：157-160,4.DOI:10.3969/j.issn.1002-3364.2014.07.157
SC R脱硝系统喷氨优化及最大脱硝效率试验研究
Performance optimization and maximum denitration efficiency analysis for SCR-DeNOx power plants
方朝君 1金理鹏 1宋玉宝 1赵俊武 1王乐乐1
作者信息
- 1. 西安热工研究院有限公司苏州分公司，江苏 苏州 215011
- 折叠
摘要
Abstract
Reason analysis for nonuniform ammonia spraying in SCR system of domestic power plants at present was carried out.By optimization and regulation for ammonia-inj ection-grid (AIG)of the SCR systems in two power units,the maximum denitration efficiency which can en-sure the qualified ammonia escaping value was obtained.The experimental results show that:after the AIG was optimized,with the denitration efficiency of 50%,the relative standard deviation of NOx concentration at outlet of side A and side B of the reactor decreased from 31.59% and 40. 44% to 9.25% and 8.97%,respectively;with the denitration efficiency of 74.3%,the relative standard deviation of NOx concentration at outlet of side A and side B of the reactor can still reach 9.89% and 10.75%.Experiment about the maximum denitration efficiency was performed after the catalyst was put into service for 16 000 hours.The results show that,under 600MW load con-dition,the maximum denitration efficiency dropped from 87% to 75%,by about 12%.关键词
选择性催化还原/最大脱硝效率/氨逃逸/喷氨优化/N Ox 浓度Key words
selective catalytic reduction/the maximum denitration efficiency/ammonia slip/AIG optimization/NOx concentration分类
资源环境引用本文复制引用
方朝君,金理鹏,宋玉宝,赵俊武,王乐乐..SC R脱硝系统喷氨优化及最大脱硝效率试验研究[J].热力发电,2014,(7):157-160,4.
