HYDROGEN PRODUCTION SYSTEM

PROBLEM TO BE SOLVED: To provide a hydrogen production system in which the stopping time of a dehydrogenation reactor at the time of the system stopping can be shortened.SOLUTION: Provided is a hydrogen production system 1 for decomposing a supplied organic hydride into hydrogen and a dehydrogenated material by a dehydrogenation reactor 10 and purifying hydrogen from a dehydrogenated reaction product containing the hydrogen and the dehydrogenated material by a hydrogen purifier 30, including a heating-medium boiler 21 for heating the heating medium supplied to the dehydrogenation reactor 10, and a stop controller SC for circulating a non-heated heating medium not heated by the heating medium boiler 21 into the dehydrogenation reactor 10 while continuing the supply of the organic hydride to the dehydrogenation reactor 10 at the time of the system stopping.SELECTED DRAWING: Figure 3 【課題】装置停止時における脱水素反応器の停止時間を短くすることができる水素製造装置を提供すること。【解決手段】供給される有機ハイドライドを脱水素反応器１０によって水素と脱水素物質とに分解し、水素精製器３０によって前記水素および前記脱水素物質を含んでなる脱水素反応物から水素を精製する水素製造装置１であって、脱水素反応器１０に供給される熱媒体を加熱する熱媒ボイラ２１と、装置停止時に、前記有機ハイドライドの脱水素反応器１０への供給を継続しつつ、熱媒ボイラ２１によって加熱されない無加熱熱媒体を脱水素反応器１０内に循環させる停止制御部ＳＣと、を備える。【選択図】図３