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    • 53. 发明申请
    • Method for Preparing a Supported Ruthenium Catalyst
    • 制备负载型钌催化剂的方法
    • US20140322622A1
    • 2014-10-30
    • US14118301
    • 2012-05-15
    • Debasish Chakraborty
    • Debasish Chakraborty
    • C01B3/08H01M8/06
    • C01B3/08B01J21/04B01J23/46B01J23/462B01J23/58B01J23/63B01J23/644B01J23/6447B01J35/00B01J35/0013B01J35/002B01J35/10B01J35/1009B01J35/1014B01J35/1019B01J35/1038B01J35/1042B01J37/02B01J37/0203B01J37/0211B01J37/0221B01J37/08C01B3/047H01M8/0606Y02E60/324Y02E60/364Y02E60/50
    • In a method of preparing a ruthenium-containing catalyst on a non-conductive metal oxide support comprises dissolving one or more ruthenium precursor compounds in an liquid organic polyol, combining the thus obtained solution with (a) nano-powder(s) of one or more metal oxides in a ratio of moles metal oxide(s) to moles ruthenium atoms in the one or more ruthenium precursor compounds of about 0:1 to about 6:1, the metal oxide nano-powder(s) having a surface area of from about 5 to about 300m2/g and a point of zero charge (PZC) of pH 5.5 or higher, agitating the thus obtained mixture, adding pre-shaped alumina sup port pellets to the agitated mixture, which is than heated at a temperature of about 50° C. to the boiling point of the organic polyol, until the reaction is finished, cooling the mixture and combining it with an aqueous solution of NaNO3 and/or KNO3, agitating the resultant mixture, separating the solvent and the solids, and drying the thus obtained solid pellets of alumina, or alumina and the metal oxide(s) of the nano-powder(s) coated with ruthenium and an additional amount Na and/or K ions. Also disclosed is the sup ported ruthenium-containing catalyst obtainable by the method and the use thereof in decomposing ammonia into nitrogen and oxygen.
    • 在非导电性金属氧化物载体上制备含钌催化剂的方法包括将一种或多种钌前体化合物溶解在液体有机多元醇中,将由此获得的溶液与(a)一种或多种纳米粉末组合, 一种或多种钌前体化合物中的金属氧化物与一种或多种钌前体化合物中钌原子摩尔数的摩尔比为大约0:1至大约6:1的金属氧化物,所述金属氧化物纳米粉末的表面积为 约5至约300m 2 / g和pH 5.5或更高的零电荷点(PZC),搅拌由此获得的混合物,向预先搅拌的混合物中加入预形状的氧化铝支撑颗粒,该混合物在温度为 约50℃至有机多元醇的沸点,直到反应完成,冷却混合物并将其与NaNO 3和/或KNO 3的水溶液混合,搅拌所得混合物,分离溶剂和固体,和 干燥由此获得的氧化铝固体颗粒, 或氧化铝和涂覆有钌的纳米粉末和额外量的Na和/或K离子的金属氧化物。 还公开了通过该方法获得的支持钌的催化剂及其在将氨分解成氮和氧的用途。
    • 58. 发明申请
    • HONEYCOMB CATALYST BODY
    • 蜂窝状催化剂体
    • US20140154146A1
    • 2014-06-05
    • US14090165
    • 2013-11-26
    • NGK INSULATORS, LTD.
    • Takashi AOKI
    • F01N3/28
    • F01N3/2828B01J35/0006B01J35/002B01J35/04B01J35/10B01J35/1076B01J37/0215C04B35/195C04B38/0006C04B38/0009C04B2111/00793C04B2111/0081C04B2235/3217C04B2235/3218C04B2235/3418C04B2235/349C04B38/0054C04B38/0074C04B38/068
    • A honeycomb catalyst body having high mechanical strength, less pressure loss, and suitable purification performance is provided, and includes a plugged honeycomb structure having porous partition walls defining cells extending from one end face to another end face, inflow side plugged portions provided at one ends of the predetermined cells, outflow side plugged portions provided at another ends of the remaining cells, and porous projecting portions projecting so as to extend from the partition walls into the cells and being formed integrally with the partition walls; and a catalyst loaded onto the projecting portions of the plugged honeycomb structure, wherein porosities of the partition walls are 40% or more and smaller than 60%, thicknesses of the projecting portions are from 30 to 140% of thicknesses of the partition walls, and a catalyst amount loaded onto the partition walls thereof is smaller than a catalyst amount loaded onto the projecting portions.
    • 提供了具有高机械强度,较低压力损失和合适的净化性能的蜂窝状催化剂体,并且包括具有多孔分隔壁的堵塞蜂窝结构体,所述蜂窝状结构体具有限定从一个端面延伸到另一个端面的孔的多孔分隔壁,设置在一端的流入侧堵塞部 设置在剩余单元的另一端的流出侧堵塞部分以及从分隔壁延伸到单元中突出并与隔壁一体形成的多孔突出部分; 以及负载在堵塞蜂窝结构体的突出部上的催化剂,其中隔壁的孔隙率为40%以上且小于60%,突出部的厚度为隔壁的厚度的30〜140%, 负载在其隔壁上的催化剂量小于装载到突出部上的催化剂量。