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    Process for preparing (meth)acrolein by heterogeneously catalyzed gas phase partial oxidation
    7.
    发明授权
    Process for preparing (meth)acrolein by heterogeneously catalyzed gas phase partial oxidation 失效
    通过非均相催化气相部分氧化制备（甲基）丙烯醛的方法

    公开(公告)号：US08399711B2

    公开(公告)日：2013-03-19

    申请号：US12954770

    申请日：2010-11-26

    申请人： Josef Macht ,  Andreas Raichle ,  Klaus Joachim Mueller-Engel ,  Ulrich Hammon

    发明人： Josef Macht ,  Andreas Raichle ,  Klaus Joachim Mueller-Engel ,  Ulrich Hammon

    IPC分类号： C07C45/35

    CPC分类号： B01J23/002 ,  B01J23/8885 ,  B01J35/023 ,  B01J37/04 ,  B01J37/08 ,  B01J2523/00 ,  C07C45/35 ,  C07C47/22 ,  B01J2523/13 ,  B01J2523/41 ,  B01J2523/54 ,  B01J2523/68 ,  B01J2523/69 ,  B01J2523/842 ,  B01J2523/845

    摘要： A process for preparing (meth)acrolein by heterogeneously catalyzed gas phase partial oxidation of a precursor compound, in which the reaction gas mixture which comprises at least 3% by volume of precursor compound is passed through a fresh fixed catalyst bed whose active material is a multielement oxide which comprises the elements Mo, Fe and Bi and at least one of the elements Ni and Co, and the fixed catalyst bed is loaded with at least 40 l (STP)/l·h of precursor compound, and the precursor compound is converted to an extent of at least 90 mol %, wherein, over the first 8000 operating hours, during X=10 to 500 operating hours, the highest temperature of the reaction gas mixture in the fixed catalyst bed is 400 to 450° C. and, during the remaining 8000−X operating hours, is 300 to

    摘要翻译： 通过前体化合物的非均相催化气相部分氧化制备（甲基）丙烯醛的方法，其中将包含至少3体积％的前体化合物的反应气体混合物通过新鲜的固定催化剂床，活性材料为 包含元素Mo，Fe和Bi以及元素Ni和Co中的至少一种和固定催化剂床的多元素氧化物装载至少40μl（STP）/ l·h的前体化合物，前体化合物是 转化为至少90摩尔％的程度，其中，在第一个8000个工作小时内，在X = 10至500个操作小时期间，固定催化剂床中的反应气体混合物的最高温度为400至450℃， 在剩余的8000-X工作时间内，为300至<400℃，并且在X = 10至500个工作小时的时间内，平均有机前体化合物的固定催化剂床的负载大于 8000-X营业时间。

    Process for long-term operation of a heterogeneously catalyzed partial gas phase oxidation of propene to acrolein
    8.
    发明授权
    Process for long-term operation of a heterogeneously catalyzed partial gas phase oxidation of propene to acrolein 有权
    长期运行丙烯醛异丙烯催化部分气相氧化丙烯的方法

    公开(公告)号：US08618336B2

    公开(公告)日：2013-12-31

    申请号：US13271448

    申请日：2011-10-12

    申请人： Josef Macht ,  Klaus Joachim Mueller-Engel ,  Frank Rosowski

    发明人： Josef Macht ,  Klaus Joachim Mueller-Engel ,  Frank Rosowski

    IPC分类号： C07C45/28

    CPC分类号： C07C45/35 ,  C07C47/22

    摘要： A process for long-term operation of a heterogeneously catalyzed partial gas phase oxidation of propene to acrolein, in which the propene present in the reaction gas input mixture is partially oxidized as this gas mixture passes through the fixed catalyst bed which is accommodated in two spatially successive temperature zones A, B, and, in long-term operation, as a measure to counteract the reduction in the quality of the fixed catalyst bed, the temperature of at least one of the two temperature zones is increased such that the difference TB−TA becomes increasingly greater, where TB is the temperature of temperature zone B, and TA the temperature of temperature zone A.

    摘要翻译： 长期运行丙烯到丙烯醛的非均相催化的部分气相氧化丙烯醛的方法，其中存在于反应气体输入混合物中的丙烯被部分氧化，因为该气体混合物通过固定的催化剂床，该催化剂床容纳在空间上 连续的温度区域A，B，并且在长期运行中，作为抵消固定催化剂床的质量降低的措施，两个温度区域中的至少一个的温度增加，使得TB- TA变得越来越大，其中TB是温度区B的温度，TA是温度区A的温度。