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    • 8. 发明公开
    • SUPPORT METAL CATALYST AND METHOD FOR SYNTHESIZING AMMONIA USING SAME CATALYST
    • VERFAHREN ZUR SYNTHETISIERUNG VON AMMONIAK MITHILFE DES KATALYSATORSTRÄGERMETALLKATALYSATOR
    • EP3156126A1
    • 2017-04-19
    • EP15755657.2
    • 2015-02-12
    • Japan Science and Technology AgencyTokyo Institute of Technology
    • HOSONO HideoHARA MichikazuKITANO MasaakiYOKOYAMA ToshiharuINOUE YasunoriKAMBARA Shinji
    • B01J27/24B01J27/22C01B21/06C01B32/90C01C1/04
    • B01J27/24B01J23/462B01J23/745B01J23/75B01J27/22B01J35/0006B01J35/1009C01B21/0612C01C1/0411C01P2006/12Y02P20/52
    • A catalyst is provided which is used for continuously synthesizing ammonia using a gas containing hydrogen and nitrogen as a raw material, wherein a transition metal which exhibits catalytic activity is supported by a support, and the support is a two-dimensional electride or a precursor thereof. The two-dimensional electride or the precursor thereof is a metal nitride represented by MxNyHz (M represents one or two or more of Group II metals selected from the group consisting of Mg, Ca, Sr and Ba, and x, y and z are in ranges of 1 ≤ x ≤ 11, 1 ≤ y ≤ 8, and 0 ≤ z ≤ 4 respectively, in which x is an integer, and y and z are not limited to an integer) or M 3 N 2 (M is the same as above), or a metal carbide selected from the group consisting of Y 2 C, Sc 2 C, Gd 2 C, Tb 2 C, Dy 2 C, Ho 2 C and Er 2 C. These catalysts are used for continuously reacting nitrogen with hydrogen, which are raw materials, on the catalyst, wherein the reaction is performed in an ammonia synthesis reaction system under the preferable conditions of a reaction temperature which is equal to or higher than 100°C and equal to or lower than 600°C, and a reaction pressure which is equal to or higher than 10 kPa and lower than 20 MPa.
    • 提供了一种催化剂,其用于使用含有氢和氮作为原料的气体连续合成氨,其中具有催化活性的过渡金属由载体负载,并且载体是二维电子或其前体 。 二维电子或其前体是以M x N y H z表示的金属氮化物(M表示选自Mg,Ca,Sr和Ba的第II族金属中的一种或两种以上,x,y和z在 分别为1‰¤x‰¤11,1‰¤y‰¤8和0‰¤z‰4,其中x为整数,y和z不限于整数)或M 3 N 2(M与上述相同),或选自Y 2 C,Sc 2 C,Gd 2 C,Tb 2 C,Dy 2 C,Ho 2 C和Er 2 C的金属碳化物。这些催化剂 用于将氮气与作为原料的氢气连续反应在催化剂上,其中反应在氨合成反应体系中在优选的条件下进行,反应温度等于或高于100℃等于 或低于600℃,反应压力等于或高于10kPa并低于20MPa。