▎ 摘　　要

NOVELTY - Membrane reactor includes reaction region, permeate region, reinforcement insert, and composite membrane arranged at boundary of reaction region and permeate region, where the reaction region comprises a bed filled with a catalyst for dehydrogenation reaction, the dehydrogenation catalyst includes ruthenium carried on metal-doped porous support, and a dopant metal of the metal-doped porous support is one or more of sodium, potassium, rubidium, cesium or lanthanum, and the composite membrane comprises a support layer including a metal with a body-centered-cubic (BCC) crystal structure, and a catalyst layer including palladium or its alloy formed onto the support layer, the metal with BCC crystal structure includes one or more of vanadium, niobium or tantalum, and surface of support layer is in contact with reaction region and surface of catalyst layer is in contact with permeate region, and ammonia supplied to reaction region, is converted into hydrogen by dehydrogenation reaction. USE - Membrane reactor used in hydrogen fuel cell system for processing ammonia (all claimed). ADVANTAGE - The membrane reactor has excellent hydrogen selectivity, and requires no separate ammonia purification device when applied to the fuel cell system, which makes the process simple. The membrane reactor has higher operating pressure than ammonia dehydrogenation reaction which is performed at conventional atmospheric pressure (1 bar), so that it can have high hydrogen conversion although volume of the reactor is small. The membrane reactor has excellent durability without any hydrogen embrittlement problem of the hydrogen membrane even at low operating temperature. DETAILED DESCRIPTION - A membrane reactor includes a reaction region, a permeate region, a reinforcement insert, and a composite membrane arranged at a boundary of the reaction region and permeate region, where the reaction region comprises a bed filled with a catalyst for dehydrogenation reaction, the dehydrogenation catalyst includes ruthenium carried on a metal-doped porous support, and a dopant metal of the metal-doped porous support which is one or more of sodium, potassium, rubidium, cesium or lanthanum, and the composite membrane comprises a support layer including a metal with BCC crystal structure, and a catalyst layer including palladium or its alloy formed onto the support layer, the metal with BCC crystal structure includes one or more of vanadium, niobium or tantalum, and a surface of the support layer is in contact with the reaction region and a surface of the catalyst layer is in contact with the permeate region, and ammonia is supplied to the reaction region, the ammonia is converted into hydrogen by dehydrogenation reaction in the presence of the catalyst, the hydrogen permeates the composite membrane and is emitted from the membrane reactor through permeate region, the reinforcement insert is disposed at an end of the composite membrane to prevent material failure by embrittlement, and the membrane reactor overlaps a portion of the reinforcement insert and the reinforcement insert is a sealing portion which seals the composite membrane. INDEPENDENT CLAIMS are included for: (1) a hydrogen fuel cell system, which includes the membrane reactor, and a hydrogen fuel cell, where hydrogen emitted from the membrane reactor is directly supplied to the fuel cell; and (2) method for processing ammonia, which involves: (a) flowing ammonia into the reactor. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the hydrogen fuel cell system.