On-board vehicle ammonia and hydrogen generation

    公开(公告)号:US10961890B2

    公开(公告)日:2021-03-30

    申请号:US16590715

    申请日:2019-10-02

    Abstract: An on-board vehicle reservoir containing an ammonia/organic solvent solution may be associated with a phase separator configured to isolate ammonia from the solution. The ammonia may be introduced into an exhaust gas stream of an internal combustion engine to function as a catalytic reductant. Ammonia may be employed to generate hydrogen via catalytic decomposition of ammonia, and the hydrogen may be introduced into an exhaust gas stream to aid catalytic reactions such as catalytic oxidation of carbon monoxide (CO) and/or hydrocarbon (HC) and/or reduction of nitrogen oxides (NO); for instance during a cold-start period.

    ON-BOARD VEHICLE AMMONIA AND HYDROGEN GENERATION

    公开(公告)号:US20200032689A1

    公开(公告)日:2020-01-30

    申请号:US16590715

    申请日:2019-10-02

    Abstract: An on-board vehicle reservoir containing an ammonia/organic solvent solution may be associated with a phase separator configured to isolate ammonia from the solution. The ammonia may be introduced into an exhaust gas stream of an internal combustion engine to function as a catalytic reductant. Ammonia may be employed to generate hydrogen via catalytic decomposition of ammonia, and the hydrogen may be introduced into an exhaust gas stream to aid catalytic reactions such as catalytic oxidation of carbon monoxide (CO) and/or hydrocarbon (HC) and/or reduction of nitrogen oxides (NO); for instance during a cold-start period.

    Catalytic articles, systems and methods for the oxidation of nitric oxide
    27.
    发明授权
    Catalytic articles, systems and methods for the oxidation of nitric oxide 有权
    催化制品,氧化一氧化氮的系统和方法

    公开(公告)号:US08679434B1

    公开(公告)日:2014-03-25

    申请号:US13751864

    申请日:2013-01-28

    Abstract: Described is a catalytic article for the treatment of lean burn engine exhaust gas. The catalytic article comprises a honeycomb substrate having disposed thereon a washcoat containing one or more calcined platinum group metal components dispersed on a refractory metal oxide support located on the honeycomb substrate, the platinum group metal components having an average crystallite size in the range of about 10 to about 25 nm to provide a stable ratio of NO2 to NOx when the exhaust gas flows through the honeycomb substrate. Methods of treating exhaust gas from a lean burn engine and a system for the removal of pollutants from a lean burn engine exhaust gas stream containing NOx are also described.

    Abstract translation: 描述了一种用于处理贫燃发动机废气的催化制品。 所述催化剂制品包括蜂窝状基材,其上设置有包含分散在位于所述蜂窝状基材上的难熔金属氧化物载体上的一种或多种煅烧的铂族金属组分的修补基面涂层,所述铂族金属组分的平均微晶尺寸在约10 至约25nm,以便当废气流过蜂窝基材时提供稳定的NO 2与NO x的比例。 还描述了从贫燃发动机处理废气的方法和用于从含有NOx的贫燃发动机排气流中除去污染物的系统。

    ADVANCED NOX REDUCTION CATALYSTS
    30.
    发明申请

    公开(公告)号:US20210178380A1

    公开(公告)日:2021-06-17

    申请号:US17270125

    申请日:2019-07-30

    Inventor: Yuejin Li

    Abstract: A selective catalytic reduction (SCR) catalyst composition effective in the abatement of nitrogen oxides (NOx) is provided. The SCR catalyst composition significantly increases the conversion of NOx relative to a Cu-chabazite reference catalyst composition at any temperature, and especially at low temperatures. A catalyst article, an exhaust gas treatment system, and a method of treating an exhaust gas stream, each including the SCR catalyst composition of the invention, are also provided. The SCR catalyst composition is particularly useful for treatment of exhaust from a lean-burn engine.

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