Modeling of heterogeneous systems in a plasma jet reactor

Abstract

AbstractA theoretical model of the behavior of a plasma jet reactor (5 000 K to 12 000 K) considering a three‐dimensional, nonisothermal, turbulent, compressible, swirling, confined flow is developed. Single particle trajectories are predicted by solving the equations of motion for the axial, radial, and tangential directions. Calculations are carried out for both argon and nitrogen gases. The model is then extended to a multiparticle system on the basis of a feed particle size distribution, concentration distribution, and loading ratio.The calculations are applied to a study of the decomposition of molybdenum disulfide particles into molybdenum metal and elemental sulfur. Results are presented in terms of the effects on the particle history (trajectory, temperature, and conversion) of the following variables: particle size, nozzle exit temperature and velocity, injection velocity, location and angle of injection, swirl velocity, and ambient temperature conditions.