Abstract
AbstractThe development and validation of a novel kinetic model for the chlorination of 1,2‐dichloroethane to ultimately hexachloroethane catalyzed by blue light are presented. A factor (Xm) related to the chlorination depth was introduced into the kinetics model, and the results showed that the dynamic features of the photo‐chlorination are better predicted by the modified model than by the conventional one. Furthermore, to enhance the selectivity towards tetrachloroethane and pentachloroethane, a novel reactive distillation with side‐reactor configuration (SRC) for the photo‐chlorination process was proposed. In order to demonstrate the technical feasibility of the process, semi‐batch SRC experiments on the laboratory scale were carried out. Up to 96.5 wt % of tetrachloroethane and pentachloroethane with molar ratios varying from 7 to 0.7 over time were obtained in the bottom product.
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