The experimental investigation on the decomposition of hexane in gliding arc discharge
滑动弧放电等离子体裂解正己烷实验研究

The hexane decomposition efficiency with a novel type of non-thermal plasma engendered by gliding arc gas discharge is investigated, and the main decomposition products are analyzed. The effects of supply voltage, hexane initial concentration, electrode material, and reactor structure parameters on decomposition rate of hexane are studied. The results show that hexane can be decomposed effectively with this method, while the maximum removal efficiency of hexane is up to 96% with the air as carrier gas. The main decomposition products in the air are CO2 , CO, NO2 and H2O. The conversion rate of hexane increases with enhancing supply voltage. Increasing the initial concentration of hexane in the gas mixture will decrease the decomposition rate, but increase the absolute treating capacity. The decomposition rate is lower when using the iron as the electrode material, compared with the aluminum and cuprum under the same energy consumption. The ratio of the shortest distance and nozzle diameter will do effect of the decomposition, the maximal decomposition rate can be obtained through optimizing ratio of these two parameters.