Numerical simulation of hydrogen production from rich combustion of methane in built-in porous media Swiss-roll reactor

To understand the working features of hydrogen production from methane super-adiabatic combustion in the built-in porous media Swiss-roll reactor,the computational fluid dynamics and detailed chemical reaction mechanism GRI1.2 were combined to simulate the reaction process of hydrogen production in the reactor.The effects of equivalence ratio and premixed gas velocity on the maximum temperature of burning zone,the components of synthesis gas and methane conversion efficiency were studied and compared with the experimental results.The results show that CH4 combustion temperature inside the porous media is much higher than the adiabatic combustion temperature,and the hydrogen production on the condition of superadiabatic combustion is realized.Within the scope of this research,methane-hydrogen conversion efficiency increase with the increase of equivalence ratio and premixed gas velocity.Numerical results agree well with the experimental results.