Time dependence of NOx removal rate by a corona radical shower system

被引:33
作者
Ohkubo, T [1 ]
Kanazawa, S [1 ]
Nomoto, Y [1 ]
Chang, JS [1 ]
Adachi, T [1 ]
机构
[1] MCMASTER UNIV,DEPT ENGN PHYS,HAMILTON,ON L8S 4M1,CANADA
关键词
D O I
10.1109/28.536866
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this paper, the effects of flue gas how rate and seed gas on the dynamics of corona discharge current-voltage characteristics and NOx removal characteristics are experimentally investigated for a corona radical shower system. The corona discharge current-voltage characteristics have two operating modes which have a significant influence on NOx removal characteristics, where the threshold value of the treatment gas to seed gas flow rate ratio is about 8. The hysteresis of corona current-voltage characteristics is observed in this system. For longer operational time, corona current and NOx removal rate significantly changes with time. When the operation of the apparatus starts at relatively low applied voltage, the corona current under constant applied voltage increases with time to reach a maximum value, then decreasing with time to reach a steady state. At this condition, high NOx removal efficiency can be achieved.
引用
收藏
页码:1058 / 1062
页数:5
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