Feasibility Study on Application of Seawater Flue Gas Desulfurization (SWFGD) in Ultra-low Emission (ULE)

2018 International Conference on Civil, Architecture and Disaster Prevention

土木建筑工程

Yao, Che^1^2^4 ; Li, Tao^1^2^4 ; Yanhua, Zhou^3 ; Hong, Zhang^2^4 ; Yanming, Zhou^2^4

Hunan Province Key Laboratory of High Efficient and Clean Thermal Power Technology, Changsha, Hunan

410007, China^1

Huan Xiangdian Test and Research Institute. CO. LTD., Changsha, Hunan

410004, China^2

State Grid Hunan Electric Power Co.Ltd. Construction Company (Consulting Company), Changsha, Hunan

410004, China^3

State Grid Hunan Electric Power Corporation Research Institute, Changsha, Hunan

410007, China^4

关键词: Coal-fired power plant;    Concentration levels;    Environmental requirement;    Feasibility studies;    Flue gas desulfurization;    Gas-liquid mass transfer;    Nozzle atomizations;    Performance enhancements;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/218/1/012151/pdf
DOI  :  10.1088/1755-1315/218/1/012151

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

As an economical and energy-saving environmental protection technology, seawater desulfurization technology is widely used in environmental protection facilities of coal-fired power plants. With the introduction of the ULE management, the traditional seawater desulfurization technology can no longer meet the increasingly stringent environmental requirements. Based on the theory of gas-liquid mass transfer and nozzle atomization size distribution analysis, this paper investigates the effect and limitation of desulfurization performance enhancement by adding spray layer. The research results show that the design efficiency of the fifth layer spray is only 31.94%, and the export SO2 is only reduced to 98mg/m3. The concentration level is far from the ULE standard (35mg/m3), and the spray layer does not fully meet the requirements of ULE standards. Therefore, further considerations need to be taken from other ways of increasing efficiency.