FUEL PROCESSING DEVICE, FUEL CELL SYSTEM PROVIDED THEREWITH, AND METHOD FOR OPERATING A FUEL PROCESSING DEVICE

摘要

A fuel processing apparatus of the present invention includes: a reformer (110); a raw material supplying unit (201) configured to supply a raw material through a raw material supplying passage (113) to the reformer (110) and block the supply of the raw material; a steam supplying unit (114) configured to supply steam through a steam supplying passage (115) to the reformer (110) and block the supply of the steam; a closing device (141) configured to block a gas passage (152) located downstream of the reformer (110); and a controller (200), and the controller (200) is configured to seal the reformer (110) by blocking the supply of the raw material from the raw material supplying unit (201) and the supply of the steam from the steam supplying unit (114) and closing the closing device (141), and carry out a pressure compensation operation by using both the supply of the steam from the steam supplying unit (114) and the supply of the raw material from the raw material unit (201) with respect to pressure decrease of the sealed reformer (110), the pressure decrease being caused by temperature decrease.