电晕放电自由基簇射反应器中臭氧的生成

FORMATION OF OZONE IN THE REACTOR FILLED WITH RADICAL SHOWER OF CORONA DISCHARGE

从电极气条件变化着手,对放电过程以及NO脱除过程中自由基簇射反应器内臭氧的生成进行了较为深入的分析。研究结果表明:(1)在相同的放电功率下,当电极气为氧气时产生的臭氧最多,通入空气时其次,而不通电极气时最少;(2)随着电极气湿度的增加,臭氧的产生量逐渐减少;(3)电极气流量的增加提高了臭氧的产生量,但考虑经济性,电极气流量有一最佳值;(4)在NOx脱除过程中,自由基簇射反应器内臭氧浓度大大减少,且随着烟气中NO浓度的增加,臭氧浓度逐渐减少,认为其主要原因是臭氧和氧自由基参与了NO的氧化过程。

Starting with variation of additive gas condition around the electrodes, the formation of ozone in reactor filled with redical shower during the process of discharge and the process of NO, removal has been deeply analysed. Results of study show that as follows: (l)under conditions of same discharge power, the ozone formation to be maximum with oxygen as additive gas, to come second as passage of air, and to be minimum without additive gas; (2) along with increasing the humidity of additive gas, the ozone formation to be gradually decreased; (3)the increase of additive gas can enhance ozone formation, but it is believed from economic behavior that an optimal value of the additive gas may exist; C4)during the process of NOx removal, the ozone concentration in reactor filled with radical shower to be greatly reduced, and along with increase of the NO concentration in flue gas, ozone concentration to be gradually decreased, it is believed that the main cause to be participation of ozone and radical of oxygen into the oxidation process of NO,.