Pilot scale study on medium/low temperature SCR denitration technology for industrial flue gas

2019 3rd International Workshop on Renewable Energy and Development

能源学;生态环境科学

Xiao, Xiang^1 ; Fang, Ping^1 ; Huang, Jianhang^1 ; Wu, Haiwen^1 ; Tang, Zhixiong^1 ; Cen, Chaoping^1

South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou

510655, China^1

关键词: Ammonia concentrations;    Ammonia nitrogen;    Application prospect;    Industrial flue gas;    Low temperature SCR;    NOx removal efficiency;    Pilot-scale equipment;    Pilot-scale study;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/267/2/022035/pdf
DOI  :  10.1088/1755-1315/267/2/022035

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Based on laboratory research, the titanium-based honeycomb molding catalysts with MnOx/CeO2/V2O5 as the main active material were prepared, and a pilot scale study on medium/low temperature SCR denitration technology for ceramic kiln flue gas was carried out on a 5000 m3/h pilot scale equipment. The influences of flue gas flow, ammonia-nitrogen molar ratio and ammonia concentration on denitration efficiency were investigated. The result showed that the medium-low temperature SCR denitration technology had an excellent NOx removal efficiency. Under the conditions of the flue gas flow was 3000 m3/h, the ammonia-nitrogen molar ratio was 1.2:1, and the ammonia concentration was 25%, the NOx removal efficiency coulld reach 86%, and NOx emission concentration and ammonia escape amount were less than 40 mg/m3 and 1 mg/m3 in the flue gas, respectively. The technology can achieve deep reduction of NOx in ceramic kiln flue gas, and has a good application prospect.