Comparison of two-type corona plasma energization techniques: ultra-short and DC/AC power sources

This paper discusses some critical issues when developing industrial corona plasma systems. Based on streamer generation and interaction between power sources and reactors, the power conditions for streamer corona plasma generation can be basically divided into two groups, namely ultra-short and high-frequency oscillation DC/AC sources. Today, single- and multiple-switch circuit topologies become available to scale the ultra-short pulsed-power system up. DC/AC sources are being introduced into the market. With regard to processing conditions and costs of the power sources, this paper presents their advantages and drawbacks. In order to develop very large scale plasma systems, a new energization technique to integrate the power source and the reactor has been developed for energization of multiple reactors. Today, various options are available for industrial plasma applications, and the data available would be sufficient enough to carry out commercial-scale designs for both odour emission control and exhaust gas cleaning.