Numerical investigation of the optimal operative conditions for the dry reforming reaction in a fixed-bed reactor: role of the carbon deposition and gasification reactions

Abstract

The effect of the reaction parameters on the catalytic activity and the carbon deposition over 33 % Ni/Al2O3 catalyst was investigated. The kinetics of the CO2 reforming of methane was considered in the temperature range 450–650°C at atmospheric pressure with a 1:1:8 mixture of CH4, CO2 and N2. The reactor model for the dry reforming of methane used the Richardson and Paripatyadar kinetics and the Snoeck et al. kinetics for the coke deposition and the gasification reactions. The results led to the conclusion of the influence of CH4/CO2 ratio and temperature on the conversion/yield.