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41.
公开(公告)号:US4426319A
公开(公告)日:1984-01-17
申请号:US355184
申请日:1982-03-05
CPC分类号: B01D53/945 , B01J23/8906 , B01J23/894 , B01J37/024 , Y02T10/22
摘要: The exhaust gases from internal combustion engines are catalytically oxidized/reduced, to remove CO, unburned hydrocarbons and NO.sub.x therefrom, utilizing an improved stable and long-lived catalyst which comprises (1) a support substrate, e.g., a monolithic or particulate support, and (2) an active phase deposited thereon, said active phase (2) comprising (i) cerium, (ii) iron, (iii) at least one of the metals gallium and/or yttrium, (iv) at least one of the metals platinum and/or palladium, and (v) at least one of the metals iridium and/or rhodium.
摘要翻译: 来自内燃机的废气被催化氧化/还原,以利用改进的稳定且长寿命的催化剂除去CO,未燃碳氢化合物和NOx,其包括(1)支撑衬底,例如整体或颗粒状载体,以及 (2)沉积在其上的活性相,所述活性相(2)包含(i)铈,(ii)铁,(iii)金属镓和/或钇中的至少一种,(iv)至少一种金属 铂和/或钯,和(v)金属铱和/或铑中的至少一种。