直流电晕放电净化羰基硫以及其产物分析

使用直流电晕放电净化羰基硫(COS),研究不同O_2浓度、不同相对湿度以及粉尘存在与否对COS处理效果和被处理后主要产物含量的影响。实验结果表明,随着O_2浓度增加,COS去除效率降低,出口气中SO_2、总硫(The totals except SO_2,记为TS′)生成率均减小,COS转化量与CO、CO_2总量保持平衡,CO、CO_2浓度降低,CO生成率降低,CO_2生成率增加。相对湿度对COS处理效果影响较小,但影响电源击穿电压,相对湿度增加,出口气中总硫生成率增加,SO_2生成率减小,出口气中CO生成率降低,而CO_2生成率增加,CO浓度降低,CO_2浓度增加。在实验过程中加入粉尘后,COS处理效果有一定提高,出口气中SO_2生成率显著减少,总硫生成率增加,出口气中CO浓度降低,生成率降低,CO_2浓度增加,生成率增加。低氧气浓度、低湿度以及粉尘存在的情况下,COS处理效果最好。

Removal of Carbonyl Sulfide by DC Corona Discharge and Analysis of the Product

The effects of different concentration of O2 ,different relative humidity and whether if the existence of dust on the concentration of the main product and removal efficiency of carbonyl sulfide (COS)were investigated through direct current corona discharge.The experiment results show that the removal efficiency of carbonyl sulfide (COS)and the production date of sulfur dio-xide (SO2 ),TS′were lower with the increase of oxygen(O2 );COS inversion quantity was equal to the gross which CO and CO2 .The concentration of CO and CO2 were decreased,the production rate of CO was decreased and CO2 was increased.Relative humidity has affected the removal efficiency of COS less,but it has impact on breakdown voltage.With the increase of relative humidity,SO2 for-mation rate was decreased and TS′formation rate was increased.The concentration of CO let up and CO2 was increased.The produc-tion rate of CO was decreased and CO2 was increased.After add dust in the experiment process,the removal efficiency of COS was increased in some extent,the production rate of SO2 significantly was decreased and TS′formation rate was in addition.The concen-tration of CO was decreased and CO2 was increased.The production rate of CO was decreased and CO2 was increased.The remaval ef-ficiency of COS was the best in the condition of low oxygen,low humidity and the exist of dust.