Experimental study on simultaneous desulfurization and denitrification with ammonia in WFGD system combined with plasma oxidation of NO

被引：1
作者：
Zhang, Jubing [1 ,2 ]
Zhou, Ying [3 ]
Zhong, Zhaoping [2 ]
Jiang, Xiaoxiang [1 ]
Piao, Guilin [1 ]
机构：
[1] Engineering Laboratory for Energy System Process Conversion and Emission Control Technology of Jiangsu Province, Nanjing Normal University, Nanjing
[2] Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing
[3] Nanjing Yuanheng Environmental Research Institute Co., Ltd, Nanjing
来源：
Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition) | 2014年 / 44卷 / 06期
关键词：
NO oxidation; Plasmas; Simultaneous desulfurization and denitrification; Wet ammonia desulfurization;
D O I：
10.3969/j.issn.1001-0505.2014.06.018
中图分类号：
学科分类号：
摘要：
To increase the NOx removal efficiency in simultaneous desulfurization and denitrification of flue gas, the plasma oxidation technology was applied to the wet flue gas desulfurization (WFGD) process. The testing apparatus for simultaneous desulfurization and denitrification with ammonia in WFGD system combined with plasma oxidation of NO was established. The effects of liquid-gas ratio, ammonia concentration, flue gas flow rate, flue gas temperature, NO initial concentration and SO2 initial concentration on the removal efficiency of SO2 and NOx were investigated. The results show that higher liquid-gas ratio, higher ammonia concentration, lower gas flow rate, lower flue gas temperature, lower NO initial concentration and lower SO2 initial concentration contribute to higher NOx removal efficiency, while the SO2 removal efficiency remains almost the same under corresponding experimental parameters. The removal efficiency of SO2 and NOx reach 99.6% and 69.4%, respectively, under the following conditions: liquid-gas ratio of 10 L/m3; ammonia concentration of 4 mol/L; flue gas flow rate of 10 m3/h; flue gas temperature of 85℃; NO initial concentration of 3.5×10-4; SO2 initial concentration of 1.0×10-3. ©, 2014, Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition). All right reserved.
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页码：1194 / 1199
页数：5
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