Application and Effect Evaluation of AIG Optimization Adjustment Strategy for SCR Denitrification System After Ultra-low Emission Transformation of Coal-fired Units

2019 2nd International Conference of Green Buildings and Environmental Management

生态环境科学

Yu, Honghai^1 ; Zhou, Na^2 ; Wang, Zhi^2 ; Li, Chao^1 ; He, Fengyuan^1 ; Qu, Litao^1 ; Wang, Dexin^1 ; Qi, Xiaohui^1 ; Du, Jia^1

Huadian Power Science Research Institute Co., Ltd., Shenyang

110180, China^1

Shenyang Environmental Technology Evaluation Center, Shenyang

110169, China^2

关键词: Ammonia slip;    Coal fired units;    Coal-fired power plant;    Denitrification reactors;    Effect evaluation;    Optimization strategy;    Relative standard deviations;    SCR denitrifications;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/310/3/032052/pdf
DOI  :  10.1088/1755-1315/310/3/032052

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In order to solve the typical problems that occurred after the ultra-low emission reform of coal-fired power plants, the AIG optimization strategy was used to study the denitration system of a 600MW unit. The research shows that the uniformity of NOx concentration at the outlet of the denitrification reactor is significantly improved, and the relative standard deviation is reduced to less than 15%, which eliminates the local high concentration of ammonia slip. The deviation of NOx monitoring data from the denitration reactor outlet and the desulfurization outlet was significantly improved. The AIG optimization adjustment strategy can be used as an effective means to mitigate and solve the typical problems of denitration systems after ultra-low emission retrofit.