Abstract: A process with which a liquid fuel is evaporated completely in two stages is provided. In the first stage, the fuel is mixed with a hot primary medium and partly evaporated. In the second stage, the already evaporated fuel fraction is partly oxidized, which provides the heat for the complete evaporation of the fuel fractions which are yet to be evaporated. A fuel-air mixture for a reformer can be obtained with an advantageous embodiment of the process, in which the fuel is mixed homogeneously with oxidizing agent in the inventive evaporation. For the performance of the process, a mixing chamber is provided.

Abstract: A process with which a liquid fuel is evaporated completely in two stages is provided. In the first stage, the fuel is mixed with a hot primary medium and partly evaporated. In the second stage, the already evaporated fuel fraction is partly oxidized, which provides the heat for the complete evaporation of the fuel fractions which are yet to be evaporated. A fuel-air mixture for a reformer can be obtained with an advantageous embodiment of the process, in which the fuel is mixed homogeneously with oxidizing agent in the inventive evaporation. For the performance of the process, a mixing chamber is provided.

Abstract: The invention relates to a device for producing a product gas which is rich in hydrogen, comprising a reformer part which comprises an inlet for a fuel/oxidation agent mixture, an inlet for a water/carrier gas mixture, a catalytic surface and a first heat exchanger. Said device also comprises a combustion part which comprises an inlet for an anode residual gas from a fuel cell, an inlet for an oxidation agent, a catalytic surface and a second and a third heat exchanger. The reformer part and the combustion part are connected via lines which are used to guide a water vapour/catrier gas mixture and for directing the reformat. According to the inventive method for producing a product gas which is rich in hydrogen, a first mixing chamber guides a water vapour/carrier gas mixture via a line and a fuel/oxidation agent mixture via a nozzle. The fuelwater vapour/oxidation agent/carrier gas mixture is catalytically converted into a product gas which is rich in hydrogen in exothermic and endothermic reactions.