PRETREATMENT METHOD AND AIRTIGHTNESS TESTING METHOD FOR FUEL REFORMING APPARATUS, OPERATION PRETREATMENT METHOD FOR FUEL CELL POWER GENERATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To suppress the generation of ammonia causing the deterioration of the performance of a fuel cell by removing nitrogen remaining in a fuel reforming apparatus after reducing a catalyst.

SOLUTION: A pretreatment method for the fuel reforming apparatus 2 equipped with a reformer 11 and a carbon monoxide converter 12 includes a reduction process for supplying a reducing gas into the fuel reforming apparatus 2 and a purge process for purging a gas remaining in the fuel reforming apparatus 2 by supplying a purge gas containing neither of nitrogen and oxygen to the fuel reforming apparatus 2 after the reduction process. Further, it is possible to perform a cleaning process using nitrogen gas after the reduction process and before the purge process.

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