POST-PROCESSING SYSTEM OF DIESEL VEHICLE FOR REDUCING H2S
    74.
    发明申请
    POST-PROCESSING SYSTEM OF DIESEL VEHICLE FOR REDUCING H2S 审中-公开
    柴油机用于减少H2S的后处理系统

    公开(公告)号:US20160367942A1

    公开(公告)日:2016-12-22

    申请号:US14860957

    申请日:2015-09-22

    IPC分类号: B01D53/94

    摘要: The present disclosed provides a post-processing system of a diesel vehicle in which an LNT catalyst and a DPF are sequentially disposed on an exhaust gas channel of the engine. The post-processing system includes: an LNT catalyst configured to adsorb nitrogen oxide (NOx) under lean atmosphere and desorb the nitrogen oxide (NOx) under rich atmosphere, based on a window of theoretical air-fuel ratio; and a diesel particulate filter (DPF). The DPF includes a first purifier disposed at a back end of the LNT catalyst and purifying hydrocarbon (HC) and carbon monoxide (CO), and a second purifier disposed at a back end of the first purifier and purifying hydrogen sulfide (H2S).

    摘要翻译: 本公开提供了一种柴油车辆的后处理系统,其中LNT催化剂和DPF依次设置在发动机的排气通道上。 后处理系统包括:LNT催化剂,其被配置为在贫气氛下吸附氮氧化物(NOx),并且在富气氛下基于理论空燃比的窗口解吸氮氧化物(NOx); 和柴油微粒过滤器(DPF)。 DPF包括设置在LNT催化剂的后端并净化烃(HC)和一氧化碳(CO)的第一净化器和设置在第一净化器的后端并净化硫化氢(H 2 S)的第二净化器。

    CATALYTIC CONVERTER
    80.
    发明申请
    CATALYTIC CONVERTER 有权
    催化转换器

    公开(公告)号:US20160271590A1

    公开(公告)日:2016-09-22

    申请号:US15045436

    申请日:2016-02-17

    IPC分类号: B01J23/63 B01J35/00 B01J35/04

    摘要: A catalytic converter with excellent OSC performance and NO purification performance. The catalytic converter includes a substrate with a cell structure and catalyst layer. The catalyst layer includes lower and upper catalyst layers. The upper catalyst layer includes a zirconia compound support with rhodium carried thereon that contains zirconia, lanthanum oxide, and yttrium oxide; an alumina compound without rhodium carried thereon that contains alumina and lanthanum oxide; and a ceria-zirconia-based composite oxide containing ceria, zirconia, lanthanum oxide, and neodymium oxide. The lower catalyst layer includes an alumina compound support with platinum carried thereon that contains alumina and lanthanum oxide that are the same materials as those of the alumina compound of the upper catalyst layer; and a ceria-zirconia-based composite oxide without platinum carried thereon that contains ceria, zirconia, lanthanum oxide, and neodymium oxide that are the same materials as those of the ceria-zirconia-based composite oxide of the upper catalyst layer.

    摘要翻译: 具有优异OSC性能和NO净化性能的催化转化器。 催化转化器包括具有电池结构和催化剂层的衬底。 催化剂层包括下层和上层催化剂层。 上部催化剂层包括氧化锆化合物载体,其上载有铑,其含有氧化锆,氧化镧和氧化钇; 不含铑的氧化铝化合物,其含有氧化铝和氧化镧; 以及含有二氧化铈,氧化锆,氧化镧和氧化钕的二氧化铈 - 氧化锆系复合氧化物。 下部催化剂层包括氧化铝载体,其上载有铂,其上含有与上部催化剂层的氧化铝化合物相同的材料的氧化铝和氧化镧; 以及不含铂的二氧化铈 - 氧化锆系复合氧化物,其含有与上述催化剂层的二氧化铈 - 氧化锆类复合氧化物相同的材料的二氧化铈,氧化锆,氧化镧和氧化钕。