Numerical Analysis on Phenomena in a Biogas Dry Reforming Reactor to Supply H₂ for SOFC

Abstract

The objective of this research is to clarify the characteristics of biogas dry reforming to produce H₂. 3D Numerical simulation was performed using COMSOL multiphysics. The effect of initial temperature and inlet gas molar ratio on the characteristics of biogas dry reforming, i.e. the distribution of gas molar concentration, temperature, gas velocity, and pressure in the reactor was investigated. As a result, the highest H₂ production concentration was observed in the case of CH₄ : CO₂ = 1 : 1, which is the ideal stoichiometric condition for the dry reforming reaction. Therefore, it is the most optimum inlet gas molar ratio for the dry reforming process.