RUTHENIUM IMPREGNATED CERIA CATALYST

    公开(公告)号:CA3032253A1

    公开(公告)日:2018-02-01

    申请号:CA3032253

    申请日:2017-07-27

    Applicant: BASF CORP

    Abstract: The present disclosure generally provides low-temperature nitrogen oxides (NOx) adsorbers used in the treatment of a NOx -containing exhaust gas stream and to methods of preparing and using the same. In particular, the NOx adsorber composition comprises an active metal and a metal oxide support, wherein the metal oxide support comprises greater than 50% by weight ceria based on the total weight of the NOx adsorber composition, and wherein the active metal comprises about 0.01% to about 5% by weight ruthenium based on the total weight of the NOx adsorber composition.

    DIESEL OXIDATION CATALYST
    15.
    发明专利

    公开(公告)号:CA2976083A1

    公开(公告)日:2016-08-18

    申请号:CA2976083

    申请日:2016-02-08

    Applicant: BASF CORP

    Abstract: An oxidation catalyst composite, methods, and systems for the treatment of exhaust gas emissions from a diesel engine are described. More particularly, described is an oxidation catalyst composite including a first oxidation component comprising a first refractory metal oxide support, palladium (Pd) and platinum (Pt); a NOx storage component comprising one or more of alumina, silica, titania, ceria, or manganese; and a second oxidation component comprising a second refractory metal oxide, a zeolite, and Pt. The oxidation catalyst composite is sulfur tolerant, adsorbs NOx and thermally releases the stored NOx at temperature less than 350°C.

    SURFACE-COATED ZEOLITE MATERIALS FOR DIESEL OXIDATION APPLICATIONS

    公开(公告)号:ZA201303152B

    公开(公告)日:2014-07-30

    申请号:ZA201303152

    申请日:2013-04-30

    Applicant: BASF CORP

    Abstract: A diesel oxidation catalyst for the treatment of exhaust gas emissions, such as the oxidation of unburned hydrocarbons (HC) and carbon monoxide (CO) is described. Also described is a novel washcoat composition including a surface-coated zeolite coated with at least one of zirconia and alumina, and a platinum group metal supported on a high surface area alumina.

    DIESEL OXIDATION CATALYST ARTICLES AND METHODS OF MAKING AND USING

    公开(公告)号:MY161590A

    公开(公告)日:2017-04-28

    申请号:MYPI2013001884

    申请日:2011-11-22

    Applicant: BASF CORP

    Abstract: DIESEL OXIDATION CATALYSTS, CATALYTIC ARTICLES, METHODS OF MAKING CATALYTIC ARTICLES, EMISSIONS TREATMENT SYSTEMS AND METHODS OF TREATING AN EXHAUST GAS STREAM USING THE CATALYTIC ARTICLES FOR THE TREATMENT OF EXHAUST GAS EMISSIONS, SUCH AS THE OXIDATION OF UNBURNED HYDROCARBONS (HC) AND CARBON MONOXIDE (CO) ARE DESCRIBED. SPECIFIC CATALYTIC ARTICLES COMPRISING A SUBSTRATE (12) WITH A FIRST WASHCOAT LAYER (20) COMPRISING GREATER THAN OR EQUAL TO ABOUT 2% BY WEIGHT PALLADIUM DISPERSED ON A CERIA SUPPORT AND A SECOND WASHCOAT LAYER (22) COMPRISING A PLATINUM GROUP METAL AND A REFRACTORY METAL OXIDE ARE DESCRIBED.

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