Conversion of Methanol to Olefins and Para-Xylene
    33.
    发明申请
    Conversion of Methanol to Olefins and Para-Xylene 审中-公开
    甲醇转化为烯烃和对二甲苯

    公开(公告)号:US20150175499A1

    公开(公告)日:2015-06-25

    申请号:US14560889

    申请日:2014-12-04

    Abstract: Methods are provided for conversion of methanol and/or dimethyl ether to aromatics, such as a para-xylene, and olefins, such as ethylene and propylene. The methods can be used in conjunction with molecular sieve (zeolite) catalysts that are prepared for use in conjunction with selected effective conversion conditions. The combination of a catalyst and a corresponding effective conversion condition can allow for improved yield aromatics and olefins generally; improved yield of desired aromatics and olefins, such as para-xylene, ethylene, and/or propylene; reduced production of less desirable side products, such as methane, CO, CO2, and/or coke; or a combination thereof. The preparation of the catalyst can include modification of the catalyst with a transition metal, such as Zn or Ga. The preparation of the catalyst can also include steaming of the catalyst. In some aspects, the preparation of the catalyst can further include modifying the catalyst with phosphorous.

    Abstract translation: 提供了用于将甲醇和/或二甲醚转化为芳族化合物如对二甲苯和烯烃如乙烯和丙烯的方法。 这些方法可以与准备与选择的有效转化条件结合使用的分子筛(沸石)催化剂结合使用。 催化剂和相应的有效转化条件的组合可以允许通常改善产率芳族化合物和烯烃; 所需芳族化合物和烯烃的产率提高,如对二甲苯,乙烯和/或丙烯; 降低生产较不理想的副产物,如甲烷,CO,CO2和/或焦炭; 或其组合。 催化剂的制备可以包括用过渡金属如Zn或Ga改性催化剂,催化剂的制备还可以包括蒸发催化剂。 在一些方面,催化剂的制备可进一步包括用磷改性催化剂。

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