VOCs Decomposition Using Multiple Catalysis in Non-thermal Plasma Processing

摘要

A series of experiments were performed for toluene removal from a gaseous influent at normal temperature and atmospheric pressure by adsorption & non-thermal plasma strength & nano-catalysis technology. Non-thermal plasma was generated by dielectric barrier discharge. Sorbent & nano-catalyst were called combined catalyst which included MnO_2/γ-Al_2O_3 and nano-Ba_(0.8)Sr_(0.2)Zr_(0.1)Ti_(0.9)O_3 catalyst. MnO_2/γ-Al_2O_3 has an advantage for ozone removal, while nano- Ba_(0.8)Sr_(0.2)Zr_(0.1)Ti_(0.9)O_3 is a kind of good material for improving energy utilize rate. The results showed the synergistic technology resulted in greater enhancement of toluene removal efficiency and energy efficiency and a better inhibition for O_3 formation in the gas exhaust. Based on data analysis of FT-IR, the experiment discussed decomposition mechanism and reaction process of toluene. The results showed that synergic effect could control byproducts effectively.