Experimental Study on the Effect of Particulate and NH3 on NOx Removal Efficiency by Non-thermal Plasma Technology

The experiment of NOx removal by non‐thermal plasma based on dielectric barrier discharge (DBD) was conducted and mainly focused on the influence of particle and NH3 on NOx removal efficiency. The results indicated the particle has negative effect on the de‐NOx process. However, the presence of NH3 has the ability to enhance the NOx removal since firstly, it can generate more radicals facilitating NO transforming to NO2; secondly, the product of the reaction, NH4NO3, can completely consolidate NO which prevents NO2 from reconverting to NO in high temperature circumstance.