SO2 and CO gas removal and discharge characteristics of a nonthermal plasma reactor in a crossed dc magnetic field

Discharge and SO2 and CO gas removal characteristics of a wire-to-cylinder- type nonthermal plasma reactor in a crossed de magnetic held have been inve stigated. The experiment has been emphasized on the applying of a crossed m agnetic field, which would induce the cyclotron and drift motions of electr ons making the residual time longer in the air-gap space. It also enhances the energy of electrons and the electrophysicochemical actions to remove po llutant gases effectively. It is found that the corona onset voltage and th e breakdown voltage were decreased with increasing the crossed magnetic hel d. As a result, a higher ozone generation of 20%-30% can be obtained with d e corona discharges in the de current-induced magnetic held. Also, a very h igh removal efficiency of almost 100% for the initially fed SO2 gas of 120 ppm and CO gas of 1000 ppm was achieved at 900 G of the magnetic flux densi ty.