Removal of Carbon Tetrachloride From Air Stream by A Corona Torch Plasma Reactor

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Abstract
Non-thermal plasma technologies offer an innovative approach to the problem of decomposing various volatile organic compounds (VOCs) in the paint and semiconductor industries. We focussed our attention on corona torch plasma reactors to study the decomposition destruction efficiency for carbon tetrachloride at 400 to 8600 ppm level in dry air. The effects of gas flow rate, concentration and reactor operating conditions on the decomposition and analysis of reactant conversion of carbon tetrachloride were investigated. Experimental results show that the destruction efficiencies of carbon tetrachloride depend nonmonotonically on discharge power or applied voltage and increase with decreasing gas flow rate. No significant O3, NO x , N2O and CO are observed as the by-products of discharge in air. CO2, H2O, Cl2 and HCl are observed to be the final products of carbon tetrachloride destruction.