PURPOSE: In starting the apparatus in producing hydrogen by decomposition reaction of methanol and water as raw materials to prepare an apparatus into a steady state in a short time, by utilizing heat quantity of a combustion waste gas from a heating furnace for supplying heat of reaction for heating the raw material.
CONSTITUTION: Methanol 1 and pure water 2 are introduced into an evaporation superheater 4, heated by a heating medium from a heating medium heating furnace 15, further introduced into a superheater 20 and heated by utilizing the heat quantity of combustion waste gas from the heating medium heating furnace 15. The heated methanol 1 and pure water 2 are then introduced into a reactor 6 filled with a catalyst and heated with the heating medium from the heating medium heating furnace 15 to cause decomposition reaction and form hydrogen gas or a mixed gas of hydrogen and carbon monoxide. The resultant formed gas is then introduced into a raw material preheater 3 to preheat the raw materials and the gas is passed through a cooler 8, etc., and taken out. Thereby the apparatus can be started in a short time by installation of the superheater 20 even in starting when the raw materials cannot be preheated with the raw material preheater 3.
MURAKAMI MITSUHARU
TAMAI MAMORU
MAKINO SHIGEO
MIYAIRI YOSHIO
Next Patent: HIGH-PURITY HYDROGEN GAS PURIFICATION APPARATUS