Analysis of the Pulsed Plasma Reactor Impedance For DeSOx and DeNOx

ArticleinJapanese Journal of Applied Physics 40(2B):1108-1113 · February 2001with10 Reads
Impact Factor: 1.13 · DOI: 10.1143/JJAP.40.1108


    In this study, the impedance characteristics of the wire-plate pulsed
    plasma reactor for deSOx and deNOx were
    investigated. The experiments were carried out with a small size reactor
    (15 Nm3/h) and a prototype reactor (2000 Nm3/h,
    0.5 MW) using a rotary spark gap switch and magnetic pulse compression
    (MPC) modulator, respectively. The impedance characteristics of the
    reactor were mainly varied by varying the charge voltage, wire length
    and wire-plate distance. With increasing charge voltage and wire length,
    the reactor impedance was decreased. From these experiments, the best
    condition for the impedance matching between the pulse generator and the
    reactor was achieved. In addition, we performed an analysis of the
    nonlinear reactor impedance on the basis of results of the experiment
    and electromagnetic transients program (EMTP) study. From these, we
    found that even though the electric equivalent circuit of the reactor
    may be described by a nonlinear resistance in parallel with a varying
    capacitance, the reactor impedance could be approximately analyzed using
    the equivalent resistance value of the flat zone and the reactor’s
    initial capacitance.