WASHCOATS AND COATED SUBSTRATES FOR CATALYTIC CONVERTERS
    4.
    发明公开
    WASHCOATS AND COATED SUBSTRATES FOR CATALYTIC CONVERTERS 审中-公开
    BESCHICHTETE底座REINIGUNGSBESCHICHTUNGENFÜRKATALYTISCHE WANDLER

    公开(公告)号:EP3024571A4

    公开(公告)日:2017-04-05

    申请号:EP14829016

    申请日:2014-07-24

    申请人: SDCMATERIALS INC

    IPC分类号: B01J21/04 B01J23/40 B01J29/04

    摘要: Disclosed are, inter alia, methods of forming coated substrates for use in catalytic converters, as well as washcoat compositions and methods suitable for using in preparation of the coated substrates, and the coated substrates formed thereby, which in some cases use iron-exchanged zeolite particles that provide enhanced performance such as lower light-off temperatures and lower pollutant levels in exhaust gases. The catalytic material is prepared by a plasma-based method, yielding catalytic material with a lower tendency to migrate on support at high temperatures, and thus less prone to catalyst aging after prolonged use. Also disclosed are catalytic converters using the coated substrates, which have favorable properties as compared to catalytic converters using catalysts deposited on substrates using solution chemistry. Also disclosed are exhaust treatment systems, and vehicles, such as diesel vehicles, particularly light-duty diesel vehicles, using catalytic converters and exhaust treatment systems using the coated substrates.

    摘要翻译: 公开了形成用于催化转化器的涂覆基材的方法,以及适用于制备涂覆的基材的修补基面涂料组合物和方法以及由此形成的涂布的基材,其在一些情况下使用铁交换的沸石 提供增强性能的颗粒,例如较低的关闭温度和较低的废气中的污染物含量。 催化材料通过基于等离子体的方法制备,产生在高温下在载体上迁移的趋势较低的催化材料,因此在长时间使用后较不易于催化剂老化。 还公开了使用涂覆的基材的催化转化器,其与使用溶液化学沉积在基板上的催化剂相比,具有有利的性质。 还公开了排气处理系统和车辆,例如使用催化转化器的柴油车辆,特别是轻型柴油车辆,以及使用涂覆的基底的排气处理系统。