Patent ID: 9698440
Date: 2017-07-04
CPC Classifications: H01M,Y02E

Claim:
1. A fuel cell module comprising: a fuel cell stack including a plurality of stacked fuel cells configured to generate electrical energy by electrochemical reactions of a fuel gas and an oxygen-containing gas; a reformer configured to perform at least partial oxidation reforming or steam reforming of a raw fuel chiefly containing hydrocarbon to produce the fuel gas supplied to the fuel cell stack; and a hydrodesulfurizer configured to remove a sulfur component contained in the raw fuel, wherein the fuel gas is supplied to the fuel cell stack through a fuel gas supply channel, and the reformer and the hydrodesulfurizer are provided for the fuel gas supply channel; and the fuel gas is discharged from the fuel cell stack as a fuel exhaust gas into a fuel exhaust gas channel, and a recycling channel is connected to the fuel exhaust gas channel and is configured to circulate some of the fuel exhaust gas to return to a position of the fuel gas supply channel, the position provided upstream of the reformer and the hydrodesulfurizer, wherein an ejector is provided at a merging section of the recycling channel and the fuel gas supply channel, and is configured to control a flow rate of the fuel exhaust gas flowing through the recycling channel by negative pressure resulting from supply of the raw fuel to the reformer or the hydrodesulfurizer.