Monolithic or honeycomb-type catalyst
    1.
    发明授权
    Monolithic or honeycomb-type catalyst 失效
    单片或蜂窝型催化剂

    公开(公告)号:US5043311A

    公开(公告)日:1991-08-27

    申请号:US510266

    申请日:1990-04-19

    摘要: A monolithic or honeycomb-catalyst, in particular for purifying the exhaust gases of internal-combustion engines, composed of an inert ceramic or metallic support traversed by parallel flow channels, a layer disposed thereon and composed of catalysis-promoting metal oxide and a catalytically active component supported by the metal oxide, wherein the concentration of the catalysis-promoting metal oxide increases from the periphery to the central axis of the support. Alternatively, the catalysis-promoting metal oxide is essentially equally distributed between central axis and periphery of the support, but concentration of catalytically active component increases from the central axis to the periphery of the support.

    摘要翻译: 一种整体或蜂窝催化剂,特别是用于净化由平行流动通道穿过的惰性陶瓷或金属支撑体构成的内燃机废气,其上设置有由催化促进金属氧化物组成的催化活性物质 由金属氧化物负载的组分,其中催化促进金属氧化物的浓度从载体的周边增加到中心轴线。 或者,催化促进金属氧化物基本上均匀地分布在载体的中心轴和周边之间,但是催化活性组分的浓度从载体的中心轴向周边增加。