This work investigated the removal of toluene using cyclic adsorption/oxidation operation in a fixed-bed dielectric barrier discharge (DBD) plasma-catalytic reactor containing Pd/ZSM-5 catalyst. The modification of ZSM-5 with Pd catalyst (2 wt %) substantially improved the adsorption capability for toluene. The catalyst adsorbing toluene was readily regenerated during the plasma-catalytic oxidation step. The synergistic effect of the catalyst promoted the toluene oxidation process as well as improved the selectivity towards CO₂. As a method of reducing the energy in generating plasma, two cases (when the ground electrode was exposed to the external air and when the ground electrode was immersed in insulating oil) were compared. No micro-discharge occurred outside the ground electrode surface after oil jacketing, which prevented NO_x and ozone from forming, improved energy efficiency, and promoted CO₂ selectivity to 91%. The energy consumption with the oil insulation was 14.5 J/L, while that without it was 58.0 J/L. The catalyst was characterized using X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS).

这项工作研究了在含有Pd / ZSM-5催化剂的固定床介质阻挡放电（DBD）等离子体催化反应器中使用循环吸附/氧化操作去除甲苯的方法。用Pd催化剂（2 wt％）对ZSM-5进行改性，大大提高了对甲苯的吸附能力。在等离子体催化氧化步骤中，催化剂吸附的甲苯易于再生。催化剂的协同作用促进了甲苯的氧化过程，并提高了对CO ₂的选择性。。作为减少产生等离子体的能量的方法，比较了两种情况（接地电极暴露于外部空气时和接地电极浸入绝缘油中时）。没有微放电发生外油护套之后接地电极的表面，这防止NO _X和从成形，改进的能量效率的臭氧，促进了CO ₂选择性为91％。隔油层的能耗为14.5 J / L，不加油的能耗为58.0 J / L。使用X射线衍射（XRD），能量色散X射线光谱法（EDS），扫描电子显微镜（SEM）和X射线光电子能谱（XPS）对催化剂进行了表征。