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    • 62. 发明公开
    • VERFAHREN ZUR SPEICHERUNG VON CHEMISCHER UND ELEKTRISCHER ENERGIE ÜBER THERMODYNAMISCH REVERSIBLE KREISPROZESSE
    • 通过热力学可逆循环过程存储化学和电能的方法
    • EP3310709A1
    • 2018-04-25
    • EP16735820.9
    • 2016-06-17
    • bw-energiesysteme GmbH
    • WOLF, Bodo, M.
    • C01B3/00H01M16/00
    • C25B1/04C25B15/08H01M16/00Y02E60/324Y02E60/366
    • The invention relates to a method of storing chemical and electrical energy via thermodynamically reversible cycle processes, wherein a primary and secondary gas cycle, both composed of a gas mixture wherein the main constituents are water vapour and/or carbon dioxide and hydrogen and/or carbon monoxide, flow successively in time and independently through a bed layer of Fe- and/or Ni-containing porous shaped bodies, wherein the primary gas cycle absorbs oxygen from the bed layer with formation of water vapour and carbon dioxide, the metal oxides in the bed layer are reduced and the oxygen from the metal oxides absorbed by the gas is supplied together with the residual reduction gas to the water vapour electrolysis and is separated there as molecular oxygen from the gas mixture with supply of electrical energy and formation of hydrogen and/or carbon monoxide and supplied to a storage means, and thence is mixed in via the fuel cell or combustion chamber of a closed technical work-performing circuit in the secondary gas cycle and forms offgas with formation of water vapour and/or carbon dioxide and removal of electrical energy, and said offgas flows through the reduced metal-containing shaped bodies in the bed layer and oxidizes them again to form hydrogen and/or carbon monoxide, the circuit and hence the thermodynamically reversible cycle process is completed and the start conditions for the primary gas cycle are restored.