Patent ID: 7521031
Filing Date: 2009-04-21
Classification: B01D,F01N,Y02T

Abstract:
1. A method for treating exhaust gas using a first plasma reactor and a second plasma reactor that are operationally connected in series along an exhaust gas line, the method comprising: a first step of adsorbing target components including NO introducing a nitrogen gas with an oxygen concentration of 10 vol % or less and a purity of 90 vol % or more into the adsorbent, and applying first nonthermal plasma of the nitrogen gas to the adsorbent by generating an electric discharge, thus causing desorption of the target components and regeneration of the adsorbent; and a second step of reducing NO wherein the first step is performed in the first plasma reactor, and the second step is performed in the second plasma reactor, the second plasma reactor following or being integrated with the first plasma reactor.