| Abstract
| - The decomposition of carbon tetrachloride by a wire-in-tube pulsed corona reactor was tested toinvestigate the influence of the reaction agents H2 and O2 on the plasma decomposition of carbontetrachloride, as well as on the control of unwanted products. It was found that the decompositionof carbon tetrachloride was higher with 2% H2 in N2 gas and lower with 2% O2 in N2 gas,compared to the decomposition in N2 atmosphere. Cl2 and ClCN were regarded as the majorproducts from CCl4 decomposition in N2 atmosphere. HCl was the major FTIR-detected productfrom CCl4 decomposition in a 2% H2/N2 gas mixture, whereas the products CO2, CO, and COCl2were detected when carbon tetrachloride was decomposed in a 2% O2/N2 gas mixture. To preventthe production of unwanted byproducts such as ClCN and COCl2 from CCl4 decomposition, acombination of nonthermal plasma and in situ absorption by coating a layer of Ca(OH)2 on thesurface of the grounding electrode was proposed. It was demonstrated that the Ca(OH)2 sorbentin the plasma reactor played an effective role as a scavenger participating in the CCl4decomposition reaction by in situ capturing of the unwanted intermediates.
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