Patent ID: 8916304
Filing Date: 2014-12-23
Classification: C01B,H01M,Y02E,Y02P

Abstract:
1. A hydrogen generator comprising: a reformer configured to generate a hydrogen-containing gas by a reforming reaction using a raw material; a combustor configured to heat the reformer; an air supplying device configured to supply combustion air to the combustor; a first heat exchanger configured to recover heat from a flue gas discharged from the combustor; a first heat medium passage through which a first liquid heat medium flows, the first liquid heat medium receiving the heat recovered from the flue gas in the first heat exchanger; a first pump configured to cause the first liquid heat medium in the first heat medium passage to flow; a heat accumulator configured to store the heat recovered by the first liquid heat medium; and a controller including a computer and a memory storing a program, wherein the program, when executed by the computer, causes the controller to cause the first pump to cause the first liquid heat medium to flow in a cooling step of cooling down at least the reformer by the air supplied from the air supplying device in a state where the combustor is not carrying out combustion when the hydrogen generator stops.