Exhaust Gas Cleaning by Plasma Jet : 1st Report, Designing of Plasma Generator and Formation of Nitrogen Oxide in Presence of Oxygen

Abstract

The possibility of removing the pollutants by arc plasma injection from dirty gas containing higher concentration of NO_x, SO_x, HCl and dust emitted from a municipal refuse incinerator has been studied in this paper. A low-power arc plasma generator is designed and operated continuously on a argon gas with high stability. The air is injected from a capillary into a argon plasma jet and the formation of NO_x is measured in order to assess the generation of specific radicals in a plasma wake. The optimum injection point for the generating radicals are discussed and the formation of NO_x in the presence of oxygen for a practical system are also evaluated.