Abstract: There is disclosed a fuel cell assembly comprising at least one horizontally arranged fuel cell stack that has numerous fuel cells, each comprising an anode, a cathode and an electrolyte situated between the anode and the cathode; combustible gas supply means for supplying combustible gas to the anodes of the fuel cells; anode gas withdrawal means for withdrawing the anode exhaust gas from the anodes; cathode gas supply means for supplying cathode gas to the cathodes of the fuel cells; cathode gas withdrawal means for withdrawing the cathode exhaust gas from the fuel cells; and recirculation means for recirculating at least one part of the anode exhaust gas and/or the cathode exhaust gas to cathodes of the fuel cells.

Abstract: There is disclosed a fuel cell assembly comprising at least one horizontally arranged fuel cell stack that has numerous fuel cells, each comprising an anode, a cathode and an electrolyte situated between the anode and the cathode; combustible gas supply means for supplying combustible gas to the anodes of the fuel cells; anode gas withdrawal means for withdrawing the anode exhaust gas from the anodes; cathode gas supply means for supplying cathode gas to the cathodes of the fuel cells; cathode gas withdrawal means for withdrawing the cathode exhaust gas from the fuel cells; and recirculation means for recirculating at least one part of the anode exhaust gas and/or the cathode exhaust gas to cathodes of the fuel cells.

Abstract: There is disclosed a fuel cell assembly comprising: at least one horizontally arranged fuel cell stack that has numerous fuel cells, each comprising an anode, a cathode and an electrolyte situated between the anode and the cathode; combustible gas supply means for supplying combustible gas to the anodes of the fuel cells; anode gas withdrawal means for withdrawing the anode exhaust gas from the anodes; cathode gas supply means for supplying cathode gas to the cathodes of the fuel cells; cathode gas withdrawal means for withdrawing the cathode exhaust gas from the fuel cells; and recirculation means for recirculating at least one part of the anode exhaust gas and/or the cathode exhaust gas to cathodes of the fuel cells. The fuel cell assembly according to the invention is characterised in that the assembly consists of modular sub-assemblies that are independent of one another and that communicate with one another via standardised interfaces.

Abstract: There is disclosed a fuel cell assembly comprising at least one horizontally arranged fuel cell stack that has numerous fuel cells, each comprising an anode, a cathode and an electrolyte situated between the anode and the cathode; combustible gas supply means for supplying combustible gas to the anodes of the fuel cells; anode gas withdrawal means for withdrawing the anode exhaust gas from the anodes; cathode gas supply means for supplying cathode gas to the cathodes of the fuel cells; cathode gas withdrawal means for withdrawing the cathode exhaust gas from the fuel cells; and recirculation means for recirculating at least one part of the anode exhaust gas and/or the cathode exhaust gas to cathodes of the fuel cells.

Abstract: A fuel cell arrangement having fuel cells situated in the form of a fuel cell stack, which each contain an anode and a cathode and an electrolyte matrix situated between them, having an anode intake, which is provided on one side of the fuel cell stack, for the supply of fresh combustion gas to the anodes and an anode outlet for the discharge of consumed combustion gas from the anodes, the combustion gas being guided inside the fuel cells in a predetermined main flow direction past the anodes, having reformer units for converting a fuel supplied to the reformer units at a fuel inlet into reformer fuel, which is discharged from the reformer units at a reformer fuel outlet, the reformer units being situated between adjacent fuel cells in thermal contact therewith, and the reformer fuel outlet of the reformer units opening on the side of the fuel cell stack, on which the anode intake of the fuel cells is located, and having a fuel discharge system for distributing the fuel to be reformed to the individual reform

Abstract: A method is described for providing standby gas for a fuel cell arrangement, and the corresponding fuel cell arrangement itself is described. According to the invention, it is provided that a combustible gas is mixed with air or another oxygen-containing gas to form a first mixture and is guided through a first catalyst device (7, 8), the standby gas being obtained while converting the oxygen fraction of the first gas mixture to carbon dioxide and water vapor and while converting constituents of water vapor and higher hydrocarbons contained in the gas mixture to methane and hydrogen. The combustible gas is preferably mixed with air or another oxygen-containing gas to form a first mixture (5) and is guided at a defined first temperature through a first catalyst (7), a second gas mixture being obtained while converting the oxygen fraction of the first gas mixture to carbon dioxide and water vapor.