Patent ID: 8758722

Claim:
A method for producing hydrogen for storage and transportation by an organic chemical hydride method, comprising: producing a hydrogenated aromatic compound by hydrogenating an aromatic compound in the presence of a hydrogenation catalyst; separating and purifying the hydrogenated aromatic compound from a reaction mixture; storing and/or transporting the resultant hydrogenated aromatic compound as a carrier of hydrogen for storage and transportation; dehydrogenating the hydrogenated aromatic compound in the presence of a dehydrogenation catalyst, thereby producing hydrogen; and wherein: the hydrogenation of the aromatic compound uses a reaction gas produced by a reforming reaction and a shift reaction which adjusts a hydrogen concentration from 30 to 70 vol %; and in the hydrogenation process, a methanation reaction of remaining carbon monoxide in the reaction gas is carried out simultaneously with the hydrogenation reaction of the aromatic compound.