Decomposition of 1,2-dichlorobenzene by using plasma catalytic process

The decomposition study of gas -phase 1,2-dichlorobenzene (o-DCB) by using plasma catalytic process was performed. The effect of support materials on the removal efficiency of o-DCB was examined to choose the best support material for catalyst. Experimental results showed that TiO₂ played an important role in enhancing the removal efficiency of o-DCB remarkably. So, various kinds of metal oxide catalysts supported by TiO₂ were prepared and introduced to the plasma reaction zone. The used catalysts were 5 wt% (MnO₂, V₂O₅, Fe₂O₃, CuO, NiO, Cr₂O₃, Co₃O₄)/TiO₂. 5 wt% MnO₂/TiO₂ catalyst showed the highest catalytic activity to enhance the removal efficiency of o-DCB. The maximum removal efficiency was 91.7% and enhanced by 37% compared to non catalytic plasma process. The main plasma products were CO and CO₂, but small amounts of byproducts were also identified by GC-mass analysis.