Mechanism and Kinetics Analysis of NO/SO_2/N_2/O_2 Dissociation Reactions in Non-Thermal Plasma

摘要

The kinetics mechanism of the dissociation reactions in a NO/SO_2/N_2/O_2 system was investigated in consideration of energetic electrons' impacts on a non-thermal plasma.A model was derived from the Boltzmann equation and molecule collision theory to predict the dissociation reaction rate coefficients.Upon comparison with available literature,the model was confirmed to be acceptably accurate in general.Several reaction rate coefficients of the NO/SO_2/N_2/O_2 dissociation system were derived according to the Arrhenius formula.The activation energies of each plasma reaction were calculated by quantum chemistry methods.The relation between the dissociation reaction rate coefficient and electron temperature was established to describe the importance of each reaction and to predict relevant processes of gaseous chemical reactions.The sensitivity of the mechanism of NO/SO_2/N_2/O_2 dissociation reaction in a non-thermal plasma was also analysed.