Carbon tetrachloride is an ozone depleting chemical, while chloroform is not Therefore it is important for the catalytic hydrodechlorination of CCl 4 to CHCl 3 In this paper, kinetics on the catalytic hydrogenation of carbon tetrachloride to chloroform in liquid phase was studied A reaction mechanism was proposed Hydrogen molecular was activated on the surface of catalyst, the activated hydrogen atom then reacted with CCl 4 in the solution and produced CHCl 3 A definite kinetic equation could be deduced from the reaction mechanism The reaction rate constant is concerned with the intial concentration of CCl 4 in the solution, pressure, reaction temperature and the concentration of active center All these factors were investigated over Pt Pd/C catalyst and fit in with the kinetic equation The activation energy of the reaction is 86?KJ/mol according to the experimental results [WT5H1]
