PROCESS FOR MAKING IMPROVED CATALYSTS FROM CLAY-DERIVED ZEOLITES
    4.
    发明申请
    PROCESS FOR MAKING IMPROVED CATALYSTS FROM CLAY-DERIVED ZEOLITES 审中-公开
    从粘土衍生物制备改进的催化剂的方法

    公开(公告)号:WO2011115746A1

    公开(公告)日:2011-09-22

    申请号:PCT/US2011/026659

    申请日:2011-03-01

    Abstract: This invention relates to a process of preparing an improved catalyst comprising a clay derived zeolite. In particular, the invention comprises combining an yttrium compound with a zeolite produced by treating clay with a silica source and under alkaline conditions. The clay derived zeolite can be further combined with conventional matrix and/or binder precursors to form particulates suitable for use as catalysts in fluid catalytic cracking (FCC). Alternatively, the clay that is treated with the silica source and alkaline conditions can be in particulate form having sizes suitable for use in FCC, and the zeolite is produced in situ within the particulate. Yttrium compound is then combined with the zeolite in the particulate, e.g., via impregnation. It has been shown that the addition of the yttrium compound improves zeolite surface area retention, and zeolite stability in catalysts comprising clay derived zeolites.

    Abstract translation: 本发明涉及制备包含粘土衍生的沸石的改进的催化剂的方法。 特别地,本发明包括将钇化合物与通过用二氧化硅源处理粘土和在碱性条件下制备的沸石组合。 粘土衍生的沸石可以与常规的基质和/或粘合剂前体进一步组合以形成适合用作流化催化裂化(FCC)催化剂的颗粒。 或者,用二氧化硅源和碱性条件处理的粘土可以是具有适合用于FCC的尺寸的颗粒形式,并且沸石在颗粒内原位产生。 然后将钇化合物与颗粒中的沸石合并,例如通过浸渍。 已经表明,添加钇化合物改善了沸石表面积的保留性,以及包含粘土衍生的沸石的催化剂中的沸石稳定性。

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