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    • 1. 发明授权
    • Molded catalyst for catalytic gas reactions
    • 用于催化气体反应的成型催化剂
    • US4755500A
    • 1988-07-05
    • US947415
    • 1986-12-24
    • Kazunobu AbeToshikatsu Umaba
    • Kazunobu AbeToshikatsu Umaba
    • B01J35/04B01D53/86B01D53/94B01J33/00B01J35/00C04B38/00B01J32/00
    • B01D53/8628B01J35/00C04B38/0006Y10S423/13Y10S423/15
    • A molded catalyst for fitting into a reactor vessel having an inlet and an outlet for a reactant gas, the catalyst having openings therethrough parallel to the direction of a reactant gas which is introduced into the reactor vessel from the inlet, the catalyst comprising: a wear-resistant front portion facing the inlet of the reactor vessel, and the remaining portion of the catalyst made so wear-susceptible as to have either:(a) a wearability of 2-10% in a shaking abrasion test wherein grinding particles having an average particle size of 1000 .mu.m and a Mohs scale of 9 are placed in the openings of the catalyst in an amount of 50% by volume based on the total volume of the openings, and the catalyst is shaken for three hours with an amplitude of 77 mm and a frequency of 320 per minute; or(b) a wearability of 7.5-35% in an air abrasion test wherein an air which contains silica particles having an average particle size of 40 .mu.m in amounts of 70 g/m.sup.3 is passed through in a reactor vessel including a rectangular parallelepipedic catalyst of 45 mm wide, 45 mm thick and 100 mm long so fitted thereinto that the catalyst extends longitudinally in the direction of the flow of the air for 30 min. at a superficial velocity of 40 m/sec. at the front portion of the catalyst.
    • 一种用于装配到具有反应物气体的入口和出口的反应器容器中的模制催化剂,所述催化剂具有平行于从入口引入反应器容器的反应气体的方向的开口,所述催化剂包括: 面向反应器容器的入口的耐电阻前部分,并且催化剂的剩余部分使其易磨损,具有:(a)在振动磨损试验中的耐磨性为2-10%,其中研磨颗粒具有平均值 基于开口的总体积,将催化剂的开口中的粒径为1000μm,Mohs为9的Mohs量以50体积%的量放置在催化剂的开口中,并将催化剂以77的振幅振荡3小时 mm,每分钟320次; 或(b)在空气磨损试验中的耐磨性为7.5-35%,其中含有平均粒度为40μm的二氧化硅颗粒的量为70g / m 3的空气在包括长方体的反应器容器中通过 45mm宽,45mm厚和100mm长的催化剂安装在其中,催化剂在空气流动方向上纵向延伸30分钟。 以40m / sec的表观速度。 在催化剂的前部。