Patent ID: 9070915
Filing Date: 2015-06-30
Classification: C01B,H01M,Y02E

Abstract:
1. A hydrogen generator comprising: a hydro-desulfurizer configured to remove sulfur compounds from a raw material; a reformer configured to generate hydrogen-containing gas with use of the raw material that has passed through the hydro-desulfurizer; a raw material supply device configured to supply the raw material to the reformer; a recycle flow passage configured to supply a portion of the hydrogen-containing gas discharged from the reformer, to the raw material before the raw material flows into the hydro-desulfurizer; an on-off valve provided in said recycle flow passage; a pressure detector located at a position upstream of the on-off valve in the recycle flow passage; and an abnormality detector configured to detect an abnormal clogging in the recycle flow passage based on a pressure detected by the pressure detector, in a state in which the raw material supply device is supplying the raw material to the reformer, with the on-off valve closed.