A 0D kinetic model for the microwave discharge in liquid<i>n</i>-heptane including carbonaceous particles production

Abstract

A 0D model of time dependent processes, occurring in a gas bubble created by a microwave discharge in liquid n-heptane, is presented. The model includes both the description of gas-phase processes and formation of solid carbon-containing particles at atmospheric pressure. Two mechanisms of generation of solid particles are considered. The first one relates to the 'linear PAH growth model' and the second to 'planar PAH growth model'. Both of them describe simultaneous processes of the initial n-heptane pyrolysis and nucleation, surface growth and coagulation of soot particles. The results of calculations are compared with known experimental results. It is concluded that the second model describes the results of the experiments better.