| 摘要 |
A fuel cell system includes: a power generation stack (1) composed by stacking a plurality of fuel cells (10); and a hydrocarbon-oxidizing device (2) disposed on an upstream side of the power generation stack (1) in a fuel supply passage (8). The hydrocarbon-oxidizing device (2) directly and electrochemically oxidizes hydrocarbons with a carbon number of 2 or more, which are contained in fuel gas, or decomposes the hydrocarbons and electrochemically oxidizes carbon obtained by decomposing the hydrocarbons.
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