放电电场对SO_2气相传质过程的影响

The Influence of Electric Field with Discharge on the Gas Transfer Process of SO_2

研究了SO2在放电电场中的气相传质过程。通过模拟试验,研究了外加电压、放电区长度、放电空间大小等与放电电场相关的参数对SO2电迁移和脱硫效率的影响。试验结果表明:放电电场对SO2传质过程具有促进作用,这种促进作用和系统脱硫效率随电压升高、放电区长度和单位能耗增加、放电空间减小而增加。放电电场之后的辅助匀强电场有助于改善SO2的电迁移效果。系统脱硫效率可达95%以上,由放电电场促进SO2传质而引起的脱硫效率增量接近50%。

The gas transfer process of SO2 in the corona discharging electric field is studied. The simulated experiment were conducted to research the main factors affecting the electric transfer of SO2 and the desulfurization efficiency such as applied voltage, length and high of discharging area, etc.. The experimental results indicate that corona discharge can facilitate the gas transfer process of SO2. The facilitation and the desulfurization efficiency go up with the increase of applied voltage, length of discharging area and unit energy consumption. Assistant uniform electric field below the corona discharging electric field helps to improve the effect of SO2 electric transfer. The desulfurization efficiency may be over 95% and the increase of the desulfurization efficiency caused by corona discharge is nearly 50% under the test condition.