A novel design of electrodes system for gas treatment integrating ceramic filter and SPCP (surface corona discharge induced plasma chemical process) method

A novel configuration of electrodes system for non-thermal plasma gas treatment was proposed, in which surface corona discharge induced plasma chemical process (SPCP) and a ceramic filter were integrated. The system was characterized by a very simple configuration and a high contact efficiency between gas and discharge plasma. A feasibility of the newly developed apparatus was studied for NOX and soot treatment. NOX as gaseous pollutant was decomposed effectively. Soot suspended in gas as particulate pollutant was captured on the ceramic filter and disappeared with the surface corona discharge treatment on the filter surface. Furthermore, soot and NOX were treated simultaneously. Because soot is removed by oxidization and NOX by reduction, therefore, there is a possibility that they are treated simultaneously and complementarily.