COPPER-PROMOTED GMELINITE AND USE THEREOF IN THE SELECTIVE CATALYTIC REDUCTION OF NOX

    公开(公告)号:US20190134564A1

    公开(公告)日:2019-05-09

    申请号:US16304511

    申请日:2017-06-02

    Abstract: A catalyst for the selective catalytic reduction of NOx comprises a zeolitic material which comprises (A) one or more zeolites having a GME framework structure containing YO2 and X2O3, and optionally further comprises one or more zeolites having a CHA framework structure containing YO2 and X2O3, and/or comprises, (B) one or more zeolite intergrowth phases of one or more zeolites having a GME framework structure containing YO2 and X2O3 and one or more zeolites having a CHA framework structure containing YO2 and X2O3, wherein Y is a tetravalent element, and X is a trivalent element, and the zeolitic material contains Cu and/or Fe as non-framework elements in an amount ranging from 0.1 to 15 wt. % calculated as the element and based on 100 wt. % of YO contained in the zeolitic material. Also provided are a process for its preparation, and a use in a method for the selective catalytic reduction of NOx.

    A PROCESS FOR PREPARING A ZEOLITIC MATERIAL HAVING FRAMEWORK TYPE AEI

    公开(公告)号:US20210252491A1

    公开(公告)日:2021-08-19

    申请号:US17274809

    申请日:2019-09-10

    Abstract: The present disclosure relates to a process for preparing a zeolitic material having framework type AEI and having a framework structure which comprises a tetravalent element Y, a trivalent element X, and O. Further, the present invention disclosure relates to a zeolitic material having framework type AEI and having a framework structure which comprises a tetravalent element Y, a trivalent element X, and O, preferably obtained by the process, and further relates to the use of the zeolitic material as a catalytically active material, as a catalyst, or as a catalyst component.

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