The global kinetics of dehydrochlorination of tetrachloroethane was studied. The kinetics experimental data was obtained at the temperature range from 180 ℃ to 220 ℃. The nonlinear curve fitting method was adopted to deal the experimental data. The kinetic equation was established. The calculated values with the experimental values were compared

the relative error all less than 8%. This showed that the kinetic equation could preferably describe the dehydrochlorination reaction and had a favorable extrapolation. To further understand the reaction mechanism of the foundation.