Catalysis-assisted plasma technology for carbon tetrachloride destruction

Single-stage, catalysis-assisted plasma technology is a new concept developed to decompose carbon tetrachloride (CCl4), one of the greenhouse gases, and to reduce the reaction byproducts at the same time. A laboratory-scale plasma reactor used a packed-bed reactor with 1-mm spherical BaTiO3 pellets. The configuration employed a unique one-stage catalysis/plasma process in which the BaTiO3 pellets were coated or impregnated by active catalysts such as Co, Cu, Cr, Ni, and V. The power supply used for these experiments was either a 50-Hz neon transformer or an 18-kHz inverter neon transformer, Enhancement of the CCl4 destruction and the conversion of by-product CO to CO2 were demonstrated using Ni catalyst in the one-stage plasma reactor.