NO/sub x/ dissociation phenomena using catalyst and plasma treatment device

New approaches for dissociating NO/sub x/ directly are tested from various aspects which are classified basically as catalyst effect, plasma effect and their mixing effects(not the same stage) at atmospheric pressure. However, there may be some problems about the conversion rate, the selectivity of catalyst, the power efficiency of plasma, the thermal stability and the endurance life when considering applying these technologies to production. We propose a new device which is named catalyst and plasma treatment (CAPT). This is in order to solve the above problems in the case of NOx, COx, SOx and so on. The CAPT device may have the possibility of direct dissociation in the above toxic gaseous species which may react under both catalyst and plasma effects at the same stage by applying fundamentally the reed switch configuration.