PROCESS FOR THE PREPARATION OF DOPED PENTASIL-TYPE ZEOLITES USING DOPED FAUJASITE SEEDS
    65.
    发明公开
    PROCESS FOR THE PREPARATION OF DOPED PENTASIL-TYPE ZEOLITES USING DOPED FAUJASITE SEEDS 审中-公开
    用于生产使用八面沸石型的掺杂胚芽五硅环型的掺杂沸石

    公开(公告)号:EP1532075A1

    公开(公告)日:2005-05-25

    申请号:EP03790908.2

    申请日:2003-08-19

    Inventor: RAO, Rajeev, S.

    CPC classification number: C01B39/36 C01B39/38

    Abstract: Process for the preparation of doped pentasil-type zeolite, which process comprises the steps of: a) preparing an aqueous precursor mixture comprising a silicon source, an aluminium source, doped faujasite seeds, and another type of seeding material, and b) thermally treating the precursor mixture to form a doped pentasil-type zeolite. This process results in doped pentasil-type zeolites in a shorter crystallisation time compared to prior art processes.

    PROCESS FOR SMALL-SCALE TESTING OF FCC CATALYSTS
    69.
    发明授权
    PROCESS FOR SMALL-SCALE TESTING OF FCC CATALYSTS 有权
    FCC催化剂小规模试验方法

    公开(公告)号:EP1393062B1

    公开(公告)日:2018-01-17

    申请号:EP02727601.3

    申请日:2002-05-16

    CPC classification number: G01N31/10 C10G11/18 C10G2300/4093

    Abstract: The present invention pertains to a process for testing FCC catalysts on a small scale wherein: a) the feed to be cracked is heated to a temperature between 50 and 500° C., b) the heated feed is injected into a riser reactor containing the FCC catalyst to be tested having a temperature between 500 and 800° C., the injection time being less than 2 seconds, c) the feed is contacted with the FCC catalyst under fluidized conditions for a contact time of less than 8 seconds, and d) the feed is stripped from the FCC catalyst and the properties of the product are analyzed. The invention also comprises the apparatus employed to carry out the process. With the process of the invention the mass transfer and diffusion limitations of commercial FCC units are properly simulated.

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