The effect of reactor configuration and technical parameters on the gross heat efficiency and "hot spot" temperature was investigated in an autothermal operation process of methanol partial oxidation based on the balance of mass and energy balance as well as kinetics of the reactor. The conversion of methanol

productivity of hydrogen and the gross heat efficiency increased with the decrease of height/diameter ratio of the reactor when the same amount of catalyst was used

so the catalyst effective index was enhanced by this means. Furthermore

for the same gross heat efficiency

a lower amount of oxygen or air was needed when the height/diameter ratio was relatively small

which lead to the decrease of "hot spot" temperature. In order to make the "hot spot" temperature even lower

a reactor with multi-inlets could be used.The "hot spot" temperature dropped greatly when oxygen was input by two inlets or more

and only trivial loss of conversion and hydrogen productivity was observed. Therefore

the principle of reactor design was obtained

and the suitable configuration of the reactor

such as radial flow reactor and inorganic reactor was proposed.