ZPGM Catalyst Systems and Methods of Making Same
    59.
    发明申请
    ZPGM Catalyst Systems and Methods of Making Same 审中-公开
    ZPGM催化剂体系及其制备方法

    公开(公告)号:US20140271390A1

    公开(公告)日:2014-09-18

    申请号:US13849185

    申请日:2013-03-22

    申请人: Zahra Nazarpoor

    发明人: Zahra Nazarpoor

    摘要: Described are ZPGM catalyst systems which are free of any platinum group metals for reducing emissions of carbon monoxide, nitrogen oxides, and hydrocarbons in exhaust streams. ZPGM catalyst systems may include a substrate, a washcoat, and an overcoat. Both manganese and copper may be provided as catalysts, with copper in the overcoat and manganese preferably in the washcoat. The manganese can also be provided in the overcoat, but when in the overcoat should be stabilized for greatest effectiveness. A carrier material oxide may be included in both washcoat and overcoat. It has been discovered that the ZPGM catalyst systems are effective even without OSM in washcoat and the ZPGM catalysts within washcoat and overcoat may be best prepared by co-milling an aqueous slurry that includes manganese with alumina for the washcoat and copper and cerium salts with alumina and an OSM, for overcoat prior to overcoating and heat treating. Disclosed ZPGM TWC systems in catalytic converters may be employed to decrease the pollution caused by exhaust from various sources, such as automobiles, utility plants, processing and manufacturing plants, airplanes, trains, all-terrain vehicles, boats, mining equipment, and other engine-equipped machines.

    摘要翻译: 描述了ZPGM催化剂体系,它们不含任何铂族金属,用于减少废气流中的一氧化碳,氮氧化物和碳氢化合物的排放。 ZPGM催化剂体系可以包括底物,修补基面涂层和外涂层。 可以提供锰和铜两者作为催化剂,在外涂层中具有铜,优选在修补基面涂层中提供锰。 也可以在外涂层中提供锰,但是当外罩应当稳定以获得最大的效果时。 载体材料氧化物可以包括在修补基面涂层和外涂层中。 已经发现,ZPGM催化剂体系即使没有OSM在修补基面涂层中也是有效的,并且修补基面涂层和外涂层中的ZPGM催化剂可以通过将包含锰的含水浆料与氧化铝共混研磨以用于修补基面涂层和铜和铈与氧化铝 和OSM,用于外涂和热处理之前的外涂层。 可以使用公知的催化转化器中的ZPGM TWC系统来减少来自诸如汽车,公用设施,加工和制造工厂,飞机,火车,全地形车辆,船舶,采矿设备和其他发动机的各种来源的废气所引起的污染 装备机器。