Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Hisanori Ishino

Masataka Ozeki

Junji Morita

Akinori Yukimasa

Yoshio Tamura

Hiroaki Fujii

Jun Yoshida

Akiko Taniyama

A solid oxide fuel cell system includes a solid oxide fuel cell that produces electricity by using a hydrogen-containing gas and an oxidant gas, an exhaust-gas path via which an exhaust gas discharged from the solid oxide fuel cell flows, a circulation path via which a coolant circulates, a first heat exchanger that is disposed on the exhaust-gas path and the circulation path and enables heat exchange between the exhaust gas and the coolant, a second path, via which condensed water produced when the exhaust gas is cooled in the first heat exchanger flows, that branches from the exhaust-gas path and is connected to the circulation path, a second tank that stores reservoir water, and a second heat exchanger that is disposed in the second tank and on the circulation path and enables heat exchange between the reservoir water and the coolant.

Solid oxide fuel cell system including heat exchanger disposed of exhaust-gas and loop circulation paths

A hydrogen generating apparatus includes a reformer generating hydrogen-containing gas through a reforming reaction, a raw material supplier supplying a raw material to the reformer, a reaction gas supplier supplying reaction gas other than the raw material to the reformer, a hydro-desulfurizer removing a sulfur compound in the raw material supplied to the reformer, a recycle flow passage through which part of the hydrogen-containing gas generated by the reformer is supplied to the hydro-desulfurizer, a closing device that closes the recycle flow passage, and a controller that, when stopping operation, closes the closing device and controls the raw material supplier and the reaction gas supplier such that the raw material and the reaction gas are supplied to the reformer, before a temperature of the reformer drops down to a temperature at which deposition of carbon from the raw material on a reformation catalyst disposed inside the reformer is suppressed.

Hydrogen generating apparatus, fuel cell system, and methods of operating them

Growing community of inventors

Kyoto, Japan

Hisanori Ishino