Method for preparing acrylic acid from propane and propylene
    2.
    发明授权
    Method for preparing acrylic acid from propane and propylene 有权
    从丙烷和丙烯制备丙烯酸的方法

    公开(公告)号:US09120735B2

    公开(公告)日:2015-09-01

    申请号:US14351404

    申请日:2012-09-10

    IPC分类号: C07C51/215 C07C51/25

    摘要: The application concerns a process comprising: (A) contacting a gas comprising oxygen, propane and propylene with at least one catalyst under reaction conditions sufficient to at least partially convert the propylene into a final product comprising acrylic acid; (B) feeding said final product to a separation column, in which the final product is split into a liquid stream, which is rich in acrylic acid, and a gaseous by-product stream comprising propane and propylene in a volume ratio of from 99.9:0.1 to 95:5; (C) contacting the gaseous by-product stream with oxygen in the presence of a catalyst under reaction conditions sufficient to at least partially convert propane to acrylic acid.

    摘要翻译: 该应用涉及一种方法,其包括:(A)在足以至少部分地将丙烯转化成包含丙烯酸的最终产物的反应条件下使包含氧,丙烷和丙烯的气体与至少一种催化剂接触; (B)将所述最终产物进料到分离塔,其中最终产物被分成富含丙烯酸的液体流,以及包含丙烷和丙烯的气体副产物流,其体积比为99.9: 0.1〜95:5; (C)在足以使丙烷至丙烯酸至少部分转化的反应条件下,在催化剂存在下使气态副产物流与氧接触。

    METHOD FOR PREPARING ACRYLIC ACID FROM PROPANE AND PROPYLENE
    3.
    发明申请
    METHOD FOR PREPARING ACRYLIC ACID FROM PROPANE AND PROPYLENE 有权
    从丙烷和丙烯制备丙烯酸的方法

    公开(公告)号:US20140243554A1

    公开(公告)日:2014-08-28

    申请号:US14351404

    申请日:2012-09-10

    IPC分类号: C07C51/25 C07C51/215

    摘要: The application concerns a process comprising: (A) contacting a gas comprising oxygen, propane and propylene with at least one catalyst under reaction conditions sufficient to at least partially convert the propylene into a final product comprising acrylic acid; (B) feeding said final product to a separation column, in which the final product is split into a liquid stream, which is rich in acrylic acid, and a gaseous by-product stream comprising propane and propylene in a volume ratio of from 99.9:0.1 to 95:5; (C) contacting the gaseous by-product stream with oxygen in the presence of a catalyst under reaction conditions sufficient to at least partially convert propane to acrylic acid.

    摘要翻译: 该应用涉及一种方法,其包括:(A)在足以至少部分地将丙烯转化成包含丙烯酸的最终产物的反应条件下使包含氧,丙烷和丙烯的气体与至少一种催化剂接触; (B)将所述最终产物进料到分离塔,其中最终产物被分成富含丙烯酸的液体流,以及包含丙烷和丙烯的气体副产物流,其体积比为99.9: 0.1〜95:5; (C)在足以使丙烷至丙烯酸至少部分转化的反应条件下,在催化剂存在下使气态副产物流与氧接触。

    Hybrid autothermal catalytic process for converting alkanes to alkenes and catalysts useful for same
    5.
    发明申请
    Hybrid autothermal catalytic process for converting alkanes to alkenes and catalysts useful for same 审中-公开
    用于将烷烃转化为烯烃的混合自热催化方法和对其有用的催化剂

    公开(公告)号:US20100030004A1

    公开(公告)日:2010-02-04

    申请号:US12459969

    申请日:2009-07-10

    IPC分类号: C07C5/333

    摘要: The present invention relates to a thermally integrated multi-zone process for conversion of alkanes to their corresponding alkenes, involving endothermically converting an alkane to its corresponding alkene by soft oxidant conversion in an endothermic reaction zone, in the presence of a weak oxidant, a suitable catalyst, and heat, to produce an intermediate product gas comprising the corresponding alkene and hydrogen. The weak oxidant may be, for example, carbon dioxide. The hydrogen is then removed from the intermediate product gas by contacting the intermediate product gas, in an exothermic reaction zone, with different second catalyst, and oxygen, to combust the hydrogen and produce a heated product stream comprising the corresponding alkene, water and heat. Heat is recovered from the heated product stream and recycled back to the endothermic reaction zone, while the resulting cooled product stream comprising the corresponding alkene may be subjected to further reaction and/or processing.

    摘要翻译: 本发明涉及一种用于将烷烃转化成其相应烯烃的热集成多区域方法,包括在弱氧化剂存在下,通过在吸热反应区中的软氧化剂转化将烷烃吸附转化成其相应的烯烃,合适的 催化剂和热,以产生包含相应的烯烃和氢气的中间产物气体。 弱氧化剂可以是例如二氧化碳。 然后通过使中间产物气体,在放热反应区中与不同的第二催化剂和氧气接触,将氢气从中间产物气体中除去,以燃烧氢气并产生包含相应的烯烃,水和热的加热产物流。 从加热的产物流中回收热量并再循环回到吸热反应区,而包含相应烯烃的所得冷却产物流可进行进一步的反应和/或处理。