ZONED CATALYST COMPOSITES
    31.
    发明专利

    公开(公告)号:CA2945790A1

    公开(公告)日:2015-10-22

    申请号:CA2945790

    申请日:2015-04-17

    Applicant: BASF CORP

    Abstract: Provided herein are zoned catalysts that utilize components efficiently in that relatively short zones are provided to achieve specific functionalities to convert and/or trap one or more components in the exhaust stream. Highly controlled zoned are formed from one end of a monolithic carrier. The zones have a flat profile such that the zoned catalytic material within each passage of the substrate is at a substantially uniform distance from one end of the carrier. Methods of making and using the same are also provided.

    ZONED CATALYST COMPOSITES
    34.
    发明专利

    公开(公告)号:CA2945790C

    公开(公告)日:2022-08-16

    申请号:CA2945790

    申请日:2015-04-17

    Applicant: BASF CORP

    Abstract: Provided herein are zoned catalysts that utilize components efficiently in that relatively short zones are provided to achieve specific functionalities to convert and/or trap one or more components in the exhaust stream. Highly controlled zoned are formed from one end of a monolithic carrier. The zones have a flat profile such that the zoned catalytic material within each passage of the substrate is at a substantially uniform distance from one end of the carrier. Methods of making and using the same are also provided.

    NOX ADSORBER CATALYST, METHODS AND SYSTEMS

    公开(公告)号:CA2978703A1

    公开(公告)日:2016-09-09

    申请号:CA2978703

    申请日:2016-03-03

    Applicant: BASF CORP

    Abstract: A lean burn engine exhaust treatment articles comprising a low temperature lean NOx trap (LT-LNT) composition and methods for their use is disclosed. A lean burn engine exhaust gas treatment system including the lean burn engine exhaust treatment articles is also disclosed. The low temperature lean NOx trap (LT-LNT) compositions can comprise a washcoat layer on a carrier substrate, the washcoat layer including a platinum group metal component impregnated on a first support material comprising at least 50% alumina. The washcoat layer may further include a low temperature NOx storage material comprising a bulk particulate reducible metal oxide. Methods of monitoring the aging state of a lean burn oxidation catalyst in a lean burn engine catalyst system are also disclosed.

    LEAN NOX TRAP WITH ENHANCED HIGH AND LOW TEMPERATURE PERFORMANCE

    公开(公告)号:CA2978625A1

    公开(公告)日:2016-09-09

    申请号:CA2978625

    申请日:2016-03-03

    Applicant: BASF CORP

    Abstract: A lean NOx trap composition for the treatment of exhaust gas emissions, such as the oxidation of unburned hydrocarbons (HC), and carbon monoxide (CO), and the trapping and reduction of nitrogen oxides (NOx) is disclosed. The lean NOx trap composition can have a washcoat layer on a carrier substrate including a first support material comprising greater than 50% by weight of a reducible metal oxide; 10 to 30% by weight of alkaline earth metal supported on a second support material comprising a refractory metal oxide and 50% or less by weight of a reducible metal oxide and; and a platinum group metal component supported on at least one of the first support material and/or the second support material. A portion of the first support material may further include 0.5 % to 10% by weight of an alkaline earth metal.

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