Experimental studies on AC dielectric barrier corona discharge reactors for NO/sub x//SO/sub x/ decompositions

Summary form only given. The interest in the AC dielectric barrier corona discharge (DBCD) is growing rapidly because of their successful application to the decomposition of air pollutants such as NO/sub x//SO/sub x/. DBCD has a configuration of inserted dielectric barrier between highly non-uniform metal electrodes in the form of either cylinder-wire or pins-plate arrangement. Geometrical configuration of DBCD is of great importance for optimal design of flue gas purification reactors. In this work, two types of DBCD reactors, cylinder-wire and pins-plate, are designed and experimented, and their decomposition efficiencies of NO/sub x/ and SO/sub x/ are compared. The powered electrodes of either tungsten wire or pins having a radius of curvature of 1 mm are fixed at 20 mm away from dielectric barriers of pyrex tube or acryl plate with a thickness of 2 mm. Stainless steel tube and plate of 100 mm in length are used as a grounded electrode of both type reactors, respectively.