利用直流电晕放电法脱除H₂S气体，并对电极形状、电极间距、温度和气氛进行了考察，结合不同输入能量比（specific input energy，SIE）条件下H₂S的转化率、总能量产率等进行综合分析。结果表明，电晕区较为均匀的圆钢型电极和较小的电极间距有利于H₂S气体转化反应的进行；电压相同时，温度越高H₂S的转化率越高，但是SIE相同时，温度越高H₂S的转化率反而越低，所以电晕放电脱除H₂S气体时温度的选择应根据实际需求而定；即使较高浓度的CO的存在，也不影响H₂S的转化，输入能量较高时微量的CO转化为CO₂。

It is an essential process in many industries to remove hydrogen sulfide gas by DC corona discharge.The effect of electrode shape,electrode spacing,temperature and atmospheric conditions on the conversion rate and total energy yield of H₂S are investigated.In conclusion,round steel electrode with a more uniform corona area and smaller electrode spacing are favorable for the H₂S conversion by corona discharge.Hydrogen sulfide conversion efficiency increases with temperature in the same voltage,however,the conversion efficiency decreases as the temperature increases in the same specific input energy (SIE).So,the reaction temperature must be determined by actual needs.Even if there is a higher concentration of CO,it does not affect the conversion efficiency of H₂S.Some CO can be converted into CO₂ with a higher SIE.

刘万波(1995-),女,本科生,主要从事大气污染及控制的研究,liuwanbo333@163.com