Non-thermal plasma generation by using back corona discharge on catalyst

Abstract

This paper discusses a novel plasma catalysis generation method based on back-corona discharge along porous catalyst bed reactor. The reactor consists of a high-voltage needle electrode, one floated mesh electrode, one catalyst bed and one grounded mesh electrode. Typical plasma current density is 11.88 μA/cm 2 . It can be used for ozone generation and volatile organic compounds decomposition. By using a home-made AgMnO x /Al 2 O 3 -1 catalyst, 90% of toluene is removed at the specific plasma energy density of 123 J/L. At the same time, aerosol byproducts are collected and then decomposed on the catalyst bed. Moreover, the catalyst is regenerated because of the back-corona discharge.