SO_2在放电电场中的电迁移特性研究

Study on characteristic of electric transfer of SO_2 in corona discharge electric field

研究了SO2在放电电场中形成负离子的机制和电迁移特性和规律.试验证明SO2在放电电场中具有电迁移的能力,其迁移能力随电场强度的增加、放电区长度的增加而增加;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;由电迁移产生的脱硫效率增量可达40%.

The forming mechanism of SO2 negative ion and the characteristic and rule ot SO2 electric transfer in the corona discharging electric field were studied. The experiments have showed that SO2 has moving ability in the corona discharging electric field. The ability of SO2 electric transfer will be enhanced with higher electric-field intensity and larger length of discharging area. Assistant uniform electric field after the corona discharging electric field helps to improve the effect of SO2 electric transfer. The increment of desulfurization efficiency caused by SO2 electric transfer may reach 40 %.