Study of radiation-catalytic activity of aluminosilicate systems in the processes of hydrogen production from methane and methane-steam mixture

The kinetics of H2 accumulation during the radiation-thermocatalytic decomposition of CH4+ 2H2O and 2CH4+H2O mixtures at T=300÷773 K (Ptot=1-12 atm) on the surface of aluminosilicate was studied. Doubling the relative concentration of methane in the reaction medium at T=773 K causes an increase in the yield of G(H2) from 1.2 to 2.3 molecule/100 eV. Based on the results obtained on the heterogeneous radiolysis of methane and the CH4+H2O mixture, the following conclusions can be drawn that the efficiency of energy transfer in the Al–Si + CH4 system is less than in the Al–Si + H2O system, and the radiation-chemical yield of molecular hydrogen at heterogeneous radiolysis of methane in the presence of amorphous aluminosilicate at PCH4≈1 atm, T=300÷773 K does not depend on temperature.