Computational Fluid Dynamics Simulation: Hydrogen Production from Biogas Autothermal in Monolithic Catalyst Reactor

This research aims to find out the characteristic of autothermal biogas on catalyst monolithic reactor especially the influence of inlet gas temperature and H2O/C ratio. Monolithic catalyst has dimension 45 mm × 45 mm × 225 mm with cell density 600 cpsi. The research with Computational Fluid Dynamics (CFD) simulation involved four reactions: oxidation, steam reforming, water gas shift, and decomposition. This result elucidated that the higher inlet gas temperature, the higher methane conversion, hydrogen concentration, and carbon monoxide including the lowering H2/CO ratio. In addition, this research resulted that the higher H2O/C ratio, the higher is the hydrogen concentration with the lowering carbon monoxide concentration involving the increase of H2/CO ratio.