NOVELTY - The dehydrogenation device (4) has a laminate of a catalyst layer (40) and a supply-and-removal layer (50). The catalyst layer comprises a dehydrogenation catalyst. The supply-and-removal layer has an emission route (55) for emitting hydrogen and the dehydrogenated material produced by the supply route (54) which supplies an organic compound to the catalyst layer.    USE - For carrying out dehydrogenation endothermic reaction of organic compounds, and producing hydrogen and dehydrogenated material, such as acetone, and using produced hydrogen as fuel for fuel cell.    ADVANTAGE - The dehydrogenation device is small and powerful, and has a large processing capacity. The hydrogenation reaction of the dehydrogenated material and returning to the original organic compound is prevented, which increases the conversion ratio and enables efficient production of hydrogen. The dehydrogenation catalyst is maintained at a suitable temperature for hydrogenation endothermic reaction. The thermoelectric conversion efficiency is improved by making the dehydrogenation device and a fuel cell into a closed circuit, which also saves energy. The structure of supply-and-removal layer is made simple. The organic compound is uniformly supplied to the dehydrogenation catalyst in a liquid-film state, and the produced hydrogen and dehydrogenated material are emitted quickly.    DETAILED DESCRIPTION - The dehydrogenation device (4) carries out dehydrogenation endothermic reaction of an organic compound in the presence of heat from a dehydrogenation catalyst and a heat source, and produces hydrogen and a dehydrogenated material. The device has a laminate of a catalyst layer (40) and a supply-and-removal layer (50). The catalyst layer comprises a dehydrogenation catalyst. The supply-and-removal layer has an emission route (55) for emitting hydrogen and the dehydrogenated material produced by the supply route (54) which supplies the organic compound to the catalyst layer.    DESCRIPTION OF DRAWING(S) - The figure shows the model sectional drawing of the dehydrogenation device. (Drawing includes non-English language text).    dehydrogenation device (4)    catalyst layer (40)    supply-and-removal layer (50)    supply route (54)    emission route (55)