유전체장벽방전을 이용한 촉매공정의 질소산화물 저감성능 향상 = Improvement in Catalytic NOx Reduction by Using Dielectric Barrier Discharge

다국어 초록 (Multilingual Abstract)

The ozone produced by a dielectric barrier discharge device was injected into the exhaust gas to oxidize a part of NO to NO₂, and then the exhaust gas containing the mixture of NO and NO₂ was further treated in a catalytic reactor where both NO and NO₂ were reduced to N₂ in the presence of ammonia as the reducing agent. The NO₂ content in the mixture of NO and NO₂ was changed by the amount of ozone added to the exhaust gas. The experiments were primarily concerned with the effect of reaction temperature on the catalytic NO_x reduction at various NO₂ contents. The increase in the NO₂ content by the ozone injection remarkably improved the performance of the catalytic NO_x reduction, especially at low temperatures.