Fuel cell module

摘要

A fuel cell module includes a fuel cell stack, a reformer, and an exhaust gas combustor. The fuel cell stack has an oxygen-containing exhaust gas channel and a fuel exhaust gas channel at one end in a stacking direction of fuel cells. An exhaust gas combustor connected to the oxygen-containing exhaust gas channel and the fuel exhaust gas channel are provided at the one end of the fuel cell stack in the stacking direction. A reformer is provided around the exhaust gas combustor.

主权项

1. A fuel cell module comprising:
a flat plate stack type fuel cell stack formed by stacking a plurality of flat plate type fuel cells configured to perform power generation by electrochemical reactions of a fuel gas and an oxygen-containing gas; a reformer configured to reform a raw fuel chiefly containing hydrocarbon to produce the fuel gas supplied to the fuel cell stack; and an exhaust gas combustor configured to combust the fuel gas discharged from the fuel cell stack as a fuel exhaust gas and the oxygen-containing gas discharged from the fuel cell stack as an oxygen-containing exhaust gas to produce a combustion gas, and configured to supply the combustion gas to the reformer, wherein the fuel cell stack has an exhaust gas outlet configured to discharge the fuel exhaust gas and the oxygen-containing exhaust gas at one end in a stacking direction of the fuel cells, and the exhaust gas combustor connected to the exhaust gas outlet is provided at the one end of the fuel cell stack in the stacking direction; the reformer is provided around the exhaust gas combustor and is provided separately from the exhaust gas combustor; reforming catalyst fills the reformer, and the reformer has a raw fuel flow channel as a passage of the raw fuel; a combustion gas flow channel connected to the exhaust gas combustor is provided in an outer area of the reformer for allowing the combustion gas to flow along the outer area of the reformer; and the raw fuel flow channel and the combustion gas flow channel are provided adjacent to and in parallel to each other.