A kinetic scheme of radical chain reactions in autocatalytic pyrolysis of ethane was studied using a sensitivity analysis method, bringing in the experimental data. In the gas-phase kinetic experiments, ethane pyrolysis was carried out in laboratory reactors with the reaction mixture heated by CO 2 laser irradiation. It was shown that the scheme with autocatalytic routes includes as few steps as possible and adequately describes the ethane pyrolysis with high ethylene yield at 900-1,150 K. Admissible variation ranges of preexponential factors and activation energies for the kinetic model of the reactions were found using the Monte Carlo statistical method. Reducibility of the scheme was examined by means of the Sobol's variance based strategy applied for the sensitivity analysis evaluation.
The purpose of this study was to develop a kinetic model for the Cp 2-ZrCl 2 -catalyzed hydroalumination of olefins with organoaluminum compounds HAlBu 2 i , AlBu 3 i , ClAlBu 2 i (Bu = C 4 H 9 , Cp = C 5 H 5 ). Experimental data were taken from previous investigations in which the catalytic reaction was carried out with various olefins and different initial amounts of the catalyst in the temperature range from 0 to 40°C. A mathematical model of the process was developed taking into account the material balance. The rate constants and activation energies for process steps were determined by solving the inverse problem of chemical kinetics. The kinetic patterns of the catalytic hydroalumination of olefins with organoaluminum compounds were studied in terms of the constructed reaction model.
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