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    • 9. 发明公开
    • HYDROGEN GENERATION CATALYST AND METHOD FOR PRODUCING HYDROGEN
    • VERFAHREN ZUR ERZEUGUNG VON WASSERSTOFF WASSERSTOFFERZEUGUNGSKATALYSATOR
    • EP2898946A1
    • 2015-07-29
    • EP13839735.1
    • 2013-08-20
    • Tokyo Institute of Technology
    • HOSONO, HideoHAYASHI, FumitakaYOKOYAMA, ToshiharuTODA, YoshitakeHARA, MichikazuKITANO, Masaaki
    • B01J23/58B01J23/78B01J35/10B01J37/02B01J37/04B01J37/08B01J37/16C01B3/00C01B3/04
    • [Problem] To provide a metal-supporting catalyst for decomposing ammonia into hydrogen and nitrogen, said catalyst showing a high performance, having a low cost and being advantageous from the viewpoint of resources, and an efficient method for producing hydrogen using the catalyst.
      [Solution] A hydrogen generation catalyst for catalytically decomposing ammonia gas to generate hydrogen, characterized in that the hydrogen generation catalyst comprises, as a support, a mayenite type compound having oxygen ions enclosed therein or a mayenite type compound having 10 15 cm -3 or more of conduction electrons or hydrogen anions enclosed therein, and metal grains for decomposing ammonia are supported on the surface of the support. Hydrogen is produced by continuously supplying 0.1-100 vol% of ammonia gas to a catalyst layer that comprises the aforesaid catalyst, and reacting the same at a reaction pressure of 0.01-1.0 MPa, at a reaction temperature of 300-800°C and at a weight hourly space velocity (WHSV) of 500/mlg -1 h -1 or higher.
    • 为了提供用于将氨分解成氢和氮的金属负载催化剂,所述催化剂显示出高性能,低成本且从资源方面是有利的,以及使用催化剂生产氢的有效方法。 [解决方案]一种用于催化分解氨气以产生氢气的氢生成催化剂,其特征在于,所述氢产生催化剂包含作为载体的含有氧离子的钙铝石型化合物或具有10 15 cm -3的钙铝石型化合物或 封闭在其中的更多的传导电子或氢阴离子,用于分解氨的金属颗粒被支撑在载体的表面上。 通过向包含上述催化剂的催化剂层连续供给0.1〜100体积%的氨气,在反应温度为300〜800℃,反应温度为300〜800℃,反应温度为300〜800℃, 重量小时空速(WHSV)为500 / mlg -1 h -1或更高。