A hydrogen generation apparatus according to the present invention includes: a first desulfurizer (1); a second desulfurizer (2); a reformer (3) configured to generate a hydrogen-containing reformed gas from a raw material gas from which sulfur has been re...

When a hydrogen producing apparatus is stopped, the flow rates of a hydrocarbon-type fuel feedstock, water and an oxygen-containing oxidant gas are decreased respectively. A random decrease of the flow rates, however, invites a rapid increase in the temper...