Patent ID: 8685582

Claim:
A fuel cell system comprising: a fuel cell; an air conveyor configured to convey a cathode process air flow to the fuel cell; a heat exchanger having a first chamber configured to receive the cathode process air flow from the air conveyor and at least one of anode exhaust gas and anode supply gas, wherein the first chamber has an outlet coupled to an inlet of the fuel cell cathode, and a second chamber configured to receive cathode exhaust gas, wherein the first and second chambers of the heat exchanger are arranged so that the first chamber transfers heat to the cathode exhaust gas passing through the second chamber; and a region with catalytically active material is arranged in a flow direction of the process air flow before or in a region of the heat exchanger, wherein the region with the catalytically active material is arranged so that at least one of the anode exhaust gas and the anode supply gas is fed to it.