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    • 2. 发明授权
    • Fuel gas production system for fuel cells
    • 燃料电池燃气生产系统
    • US06656617B2
    • 2003-12-02
    • US09758387
    • 2001-01-12
    • Satoshi AoyamaHiromichi SatoToshihide NakataSatoshi Iguchi
    • Satoshi AoyamaHiromichi SatoToshihide NakataSatoshi Iguchi
    • H01M804
    • H01M8/2483C01B3/384C01B3/48C01B3/505C01B2203/0233C01B2203/0283C01B2203/041C01B2203/044C01B2203/047C01B2203/066C01B2203/1076H01M8/0258H01M8/0267H01M8/04223H01M8/04225H01M8/04268H01M8/0631H01M8/0662H01M8/0668H01M8/0687
    • The technique of the present invention enhances the separation efficiency and the production efficiency of hydrogen in a hydrogen production system for fuel cells, while reducing the size of the whole fuel gas production system. In the fuel gas production system of the present invention, a hydrocarbon compound is subjected to multi-step chemical processes including a reforming reaction, a shift reaction, and a CO oxidation to give a hydrogen-rich fuel gas. Gaseous hydrogen produced through the reforming reaction is separated by a hydrogen separation membrane having selective permeability to hydrogen. The residual gas after the separation of hydrogen has a low hydrogen partial pressure and undergoes the shift reaction at the accelerated rate. The hydrogen-rich processed gas obtained through the shift reaction and the CO oxidation joins with the separated hydrogen and is supplied to fuel cells. A purge gas for carrying out the hydrogen is introduced into a separation unit of hydrogen, in order to lower the hydrogen partial pressure and thereby enhance the separation efficiency of hydrogen. The residual gas after the separation of hydrogen undergoes combustion and is subsequently used as the purge gas
    • 本发明的技术提高了燃料电池的氢生产系统中的氢的分离效率和生产效率,同时减小了整个燃料气体生产系统的尺寸。 在本发明的燃料气体生产系统中,烃化合物进行包括重整反应,转移反应和CO氧化在内的多步化学处理,得到富氢燃料气体。 通过重整反应产生的气态氢气通过对氢具有选择性渗透性的氢分离膜分离。 氢分离后的残留气体具有低的氢分压,并以加速速率进行转化反应。 通过转移反应和CO氧化获得的富氢处理气体与分离的氢气连接并供应到燃料电池。 用于进行氢气的吹扫气体被引入到氢的分离单元中,以便降低氢气分压,从而提高氢的分离效率。 氢气分离后的残余气体经历燃烧,随后用作净化气体