SUPPORTED METAL CATALYST AND METHOD OF SYNTHESIZING AMMONIA USING THE SAME
    4.
    发明申请
    SUPPORTED METAL CATALYST AND METHOD OF SYNTHESIZING AMMONIA USING THE SAME 审中-公开
    支持的金属催化剂和使用它合成氨的方法

    公开(公告)号:US20160361712A1

    公开(公告)日:2016-12-15

    申请号:US15121702

    申请日:2015-02-12

    Abstract: 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 M3N2 (M is the same as above), or a metal carbide selected from the group consisting of Y2C, Sc2C, Gd2C, Tb2C, Dy2C, Ho2C and Er2C. 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.

    Abstract translation: 提供了一种催化剂,其用于使用含有氢气和氮气的气体作为原料连续合成氨,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 。 二维电子电极或其前体是以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≤8,0≤z≤4的范围,其中x为整数,y和z不限于整数)或M3N2(M与上述相同) 或选自Y2C,Sc2C,Gd2C,Tb2C,Dy2C,Ho2C和Er2C的金属碳化物。 这些催化剂用于使氮气与作为原料的氢气在催化剂上连续反应,其中反应在反应温度等于或高于100℃的优选条件下在氨合成反应体系中进行。 等于或低于600℃,反应压力等于或高于10kPa并低于20MPa。

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