Studies Of Gas Discharge And Photocatalytic Method Decontaminating Methylbenzene And Cyclohexane In The Exhaust Gas

This paper tries to combine gas discharge with photocatalytic method for decomposing the harmful air of Methylbenzene and cyclohexane jointly.The gas discharge-photocatalytic reacrtor (GD-PR)consists of a gas discharge reactor(GDR) filled with porcelain beads that are coated nanometer titanium dioxide.The experiment shows that the GD-PR has ability to decrease Methylbenzene and cyclohexane remarkably, with decomposing rate of 90%. The method have the feature of low energy utilization, and not second contaminate.The paper analyses the effect element of manufactute the TiO₂ filming, and acquire the photocatolyst films are prepared by Sol-Gel method in the experiment and the mix proportion of the raw maerial making TiO₂ is decided reasonably. Talk about the main elements to effects the decomposing rate. By means of test we ascertain by measuring all kinds of decomposing rate of Methylbenzene and cyclohexane in differently composition and operational condition, calculate the generation rate of CO, CO₂ in same operation situation,and give the optimum composition and operational condition of GD-PR. The dissertation reasearch the reason to cause the photocatalyst lose its active in the long-term usage process, but it is easy to rebirth in this experiment.Finally, we compare different electrode energy comsumption of GD-PR, which improved that the energy consumption of GD-PR of passed improved is the 1/3 of old GD-PR of erergy consumption. At the same time, we find that N₂ of air take part in the reaction, and the NO_X has formed in the outlet of GD-PR, when the tension reached 23kV or the electric field strength reach 9kV/cm above.