The invention relates to a device for generating a hydrogen-rich gas from a liquid, hydrogen-containing fuel using a reforming reaction, having feed lines for supplying starting materials and having discharge lines for discharging the reformate, having at least one component for evaporating liquid starting materials, having at least one component for reforming, having at least one component for the catalytic generation of thermal energy, and having at least one component for reducing the carbon monoxide fraction in the reformate, in which device at least two of the components are arranged on a common plate, which comprises a porous layer formed by pressing catalyst material, the reaction starting materials flowing over and/or through the layer.