Reaction kinetics analysis of the dechlorination process of PCBs by sodium dispersion process

The observation experiments of the dechlorination process of PCB with sodium dispersion (SD) single particle have been carried out using a laboratory scale reactor. The dechlorination reaction occurred near the surface of the particle. The particle diameter of SD particle became smaller and the layer of product became thick with the progress of the reaction. The dechlorination reaction can be expressed by the shrinking core model (SCM). The experiment of PCBs with dense SD particles was carried out, and the formulation of the reaction rate was developed. The experiment of PCBs and dense SD particles was carried out, and the formulation of the reaction rate was developed. The temperature of the feasible reactor was simulated during dechlorination process. The calculation results from the formulation excellently correspond to the experiment values. The temperature of the feasible reactor was simulated during dechlorination process. The simulation results showed the maximum temperature of the feasible reactor rose with the decrease of the diameter of the SD particles. The SD particles diameter of about 10μm that can be made technologically easily was considered to be an optimum condition.