Abstract
Chlorinated hydrocarbons have been widely utilized due to their excellent physical properties and stability as solvents, coolants, propellants or raw materials etc. One of major problems in disposing of them is safe destruction or collection of recyclable components. One of most feasible methods for waste chlorinated organics is thermal treatment. In this study, experimental and theoretical analyses have been tried to investigate several fundamental operating parameters including temperature, residence time and background conditions like existence of oxygen. Vinyl chloride and trichloroethylene (TCE) were tested to observe their reaction mechanism. Vinyl chloride started to decompose at 725 dgC, and 99 % of initial amount was decomposed at 830 ‡C, 1 sec in pyrolytic environment, produing C2H2 and HC1 mainly and C2HC1, C2H4, H4as byproducts depending on experimental conditions. TCE, on the other hand, produced C2C12, C2C14, HC1 at pyrolytic conditions and CO and CO4 additionally through COC1 radical reactions at oxidative conditions. The supply of oxygen lowered the destruction temperature of TCE and C2C14 could be considered as an indirect indicator of TCE decomposition.
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Dong, JI., Yoon, KD. Thermal decomposition mechanism of chlorinated volatile organics at pyrolytic and oxidative conditions. Korean J. Chem. Eng. 16, 501–504 (1999). https://doi.org/10.1007/BF02698275
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DOI: https://doi.org/10.1007/BF02698275