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    Method for the heterogeneously catalyzed partial gas phase oxidation of propene into acrylic acid
    3.
    发明申请
    Method for the heterogeneously catalyzed partial gas phase oxidation of propene into acrylic acid 审中-公开
    丙烯非均相催化部分气相氧化丙烯的方法

    公开(公告)号：US20060135813A1

    公开(公告)日：2006-06-22

    申请号：US10543060

    申请日：2004-03-20

    申请人： Martin Dieterle ,  Jochen Petzoldt ,  Klaus Muller-Engel ,  Hans Martan

    发明人： Martin Dieterle ,  Jochen Petzoldt ,  Klaus Muller-Engel ,  Hans Martan

    IPC分类号： C07C51/16

    CPC分类号： C07C51/252 ,  C07C57/04

    摘要： In a process for partially oxidizing propene to acrylic acid in the gas phase under heterogeneous catalysis, a starting reaction gas mixture comprising propene and oxygen and having a specific composition is oxidized in a first reaction stage over a first fixed catalyst bed having a volume-specific activity which is constant or increases in the flow direction and the acrolein-containing product gas mixture of the first reaction stage is subsequently oxidized in a second reaction stage over a second fixed catalyst bed having a volume-specific activity increasing in the flow direction, and the shaped catalyst bodies of both fixed catalyst beds are annular and each have a specific multimetal oxide composition.

    摘要翻译： 在非均相催化下在气相中将丙烯部分氧化为丙烯酸的方法中，包含丙烯和氧并具有特定组成的起始反应气体混合物在第一反应阶段在具有体积特异性的第一固定催化剂床上被氧化 随后在第二反应阶段，在流动方向上具有体积比活度增加的第二固定催化剂床上氧化第一反应段的流动方向恒定或增加的含丙烯醛的产物气体混合物的活性，以及 两个固定催化剂床的成形催化剂体是环状的，并且各自具有特定的多金属氧化物组合物。

    Process for preparing acrolein or acrylic acid or a mixture thereof from propane
    5.
    发明申请
    Process for preparing acrolein or acrylic acid or a mixture thereof from propane 有权
    从丙烷制备丙烯醛或丙烯酸或其混合物的方法

    公开(公告)号：US20070117998A1

    公开(公告)日：2007-05-24

    申请号：US11505800

    申请日：2006-08-18

    申请人： Otto Machhammer ,  Klaus Muller-Engel ,  Martin Dieterle

    发明人： Otto Machhammer ,  Klaus Muller-Engel ,  Martin Dieterle

    IPC分类号： C07C51/16

    CPC分类号： C07C45/35 ,  C07C45/33 ,  C07C51/215 ,  C07C51/252 ,  C07C47/22 ,  C07C57/04

    摘要： A process for preparing acrolein, or acrylic acid or a mixture thereof as a target product from propane, in which propane is partially dehydrogenated under heterogeneous catalysis in a reaction zone A, molecular hydrogen thus formed is incinerated partly to water and the product gas A thus formed in reaction zone A is used without secondary component removal to charge a reaction zone B in which propylene present in product gas A is partially oxidized to the target product. From the product gas B formed in reaction zone B, the target product is removed and the residual gas I remaining after an aftertreatment comprising a CO2 scrubbing and a partial discharge thereof is recycled into reaction zone A.

    摘要翻译： 制备丙烯醛或丙烯酸或其混合物作为丙烷的目标产物的方法，其中丙烷在反应区A中在非均相催化下部分脱氢，因此形成的分子氢部分地被焚烧成水，产物气A因此 在反应区A中形成的反应区A被使用，而不需要除去二次分量，从而向产物气体A中存在的丙烯部分氧化成目标产物的反应区B进行充电。 从在反应区B中形成的产物气体B中，除去目标产物，并且在包括CO 2洗涤和部分排放的后处理之后残留的残余气体I再循环到反应区A中。