Hydrogen generator, method of shutting down operation of hydrogen generator, and fuel cell system

A hydrogen generator of the invention includes: a reformer for generating a hydrogen-rich gas from a feed gas and water by a reaction using a reforming catalyst body and sending it out from an outlet port; a material feed system for feeding the feed gas to the reformer; a burner for supplying, to th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	UKAI KUNIHIRO, MAENISHI AKIRA, MUKAI YUJI, TAMURA YOSHIO, ASOU TOMONORI
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CARBURETTING AIR OR OTHER GASES CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF ELECTRICITY FUELS INORGANIC CHEMISTRY LUBRICANTS METALLURGY NON-METALLIC ELEMENTS PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROMSOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES TECHNICAL GASES CONTAINING CARBON MONOXIDE THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A hydrogen generator of the invention includes: a reformer for generating a hydrogen-rich gas from a feed gas and water by a reaction using a reforming catalyst body and sending it out from an outlet port; a material feed system for feeding the feed gas to the reformer; a burner for supplying, to the reforming catalyst body, heat generated by mixing a fuel gas with air and burning it; and an air supply system for supplying air to the burner; wherein, when purging an interior of the reformer using the feed gas in shutting down the hydrogen generator, an amount of the air supplied is increased to put out a flame of the burner, and a purge gas sent out from the outlet port by the purging is mixed and diluted with the air in the burner and is discharged outside.