Non-thermal plasma technology, which is advanced in the field of exhaust treating, has special advantages when it is used to treat gas pollutant. The dielectric barrier discharge （DBD） plasma technology was applied to remove NO. from automobile exhaust in this paper. The treating of the simulated exhaust consisting of N2 and NO by non-thermal plasma was studied via experiment. The influence of the discharge voltage, the resident time of the simulated exhaust in the DBD reactor and the initial concentration of NO were detected in the course of NO. removal. Then the possible reaction approaches of NO, removal from automobile exhaust by non-thermal plasma were analyzed, from which the main reactions in the simulated exhaust were selected. The kinetics model was set up, in which the kinetics figure was consistent with the experiment data. Thus the reaction mechanism can be proved to be reasonable.
dielectric barrier discharge （DBD）