CH2CL2 DECOMPOSITION BY USING A RADIOFREQUENCY PLASMA SYSTEM

In this study, a radio-frequency plasma system was used to decompose a dichloromethane (CH2Cl2) containing gas. Analyses of the reactants an d final products were conducted by using Fourier Transform Infrared Sp ectroscopy. Then, the effects of plasma operation-parameters, includin g the gas flow rate, the feeding CH2Cl2 concentration, the equivalence ratio phi (=stoichiometric O-2 needed/actual O-2 used) and the input power wattage, for CH2Cl2 decomposition and for the fraction of total carbon input converted into CO2 and CO were investigated. Mole fractio n profiles for each experimental condition were determined for the rea ctants (CH2Cl2 and O-2) and for CO, CO2, H2O, HCl, CHCl3, CCl4, COCl2, C2HCl3 and C2Cl4. In addition, the possible reaction pathways were bu ilt up and discussed.