PURPOSE: To provide an improved process for the reformation of methanol useful for a fuel cell power generator, etc., and having high efficiency, by heating a raw material superheater of a methanol reformation apparatus with a combustion exhaust gas of a liquid thermal medium heater, thereby heating the mixed raw material gas to a temperature higher than that of the liquid thermal medium.

CONSTITUTION: An organic liquid thermal medium 30 is heated at about 300°C with a heating tube 17A of a thermal medium heater 17 and circulated with a circulation pump 11. A mixed raw material 24 composed of methanol and water is introduced into a raw material evaporator 4 and indirectly heated to generate a mixed raw material gas 25. Separately, a methanol-steam catalyst layer in a reformer 6 is indirectly heated. A combustion exhaust gas 31 generated from the combustion burner 17B of the heater 17 is sent to a raw material superheater 15 through a pipe 17C and subjected to heat-exchange with the mixed raw material gas 25 to obtain a superheated mixed raw material gas 36 heated at a temperature higher than that of the liquid thermal medium 30 by 50W100°C. The obtained gas 36 is supplied to a reforming catalyst layer of the reformer 6 to recover an H2-rich reformed gas 27 of methanol.