Preparation of acrolein or acrylic acid or a mixture thereof from propane
    87.
    发明授权
    Preparation of 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

    公开(公告)号:US07388109B2

    公开(公告)日:2008-06-17

    申请号:US11131248

    申请日:2005-05-18

    IPC分类号: C07C51/16

    摘要: A process for preparing acrolein or acrylic acid or a mixture thereof from propane, in which the propane is initially dehydrogenated under heterogeneous catalysis to give propene, secondary components are removed and the remaining gas mixture, comprising propane and propene, is subjected to the heterogeneously catalyzed partial oxidation to acrolein or acrylic acid or a mixture thereof as the target product, target product is removed from the product gas mixture and the remaining residual gas, comprising excess oxygen and unconverted propane, is recycled into the propane dehydrogenation in such a way that the other propane fed to the dehydrogenation is at least partly converted under dehydrogenating conditions at the recycle point.

    摘要翻译: 从丙烷制备丙烯醛或丙烯酸或其混合物的方法,其中丙烷最初在非均相催化下脱氢以得到丙烯,次要组分被除去,剩余的包含丙烷和丙烯的气体混合物经历非均相催化 部分氧化成丙烯醛或丙烯酸或其混合物作为目标产物,将目标产物从产物气体混合物中除去,剩余的包含过量氧气和未转化的丙烷的残余气体以这样的方式循环到丙烷脱氢中: 进料到脱氢的其它丙烷在再循环点的脱氢条件下至少部分转化。

    PROCESS FOR PREPARING ACROLEIN OR ACRYLIC ACID OR A MIXTURE THEREOF FROM PROPANE
    88.
    发明申请
    PROCESS FOR PREPARING ACROLEIN OR ACRYLIC ACID OR A MIXTURE THEREOF FROM PROPANE 有权
    制备丙烯酸或丙烯酸或其混合物的方法

    公开(公告)号:US20070276157A1

    公开(公告)日:2007-11-29

    申请号:US11751202

    申请日:2007-05-21

    IPC分类号: C07C51/16 C07C45/28

    摘要: A process for preparing acrolein or acrylic acid or a mixture thereof as the target product from propane, in which propane is partially dehydrogenated under heterogeneous catalysis in a reaction zone A, molecular hydrogen formed is at least partly combusted to water, any water present in the product gas A formed in reaction zone A is removed therefrom and product gas A is otherwise used to charge a reaction zone B in which propylene formed in reaction zone A is partially oxidized in the presence of remaining propane to give the target product. The target product is removed from the product gas B formed in reaction zone B and propane present in the remaining residual gas is absorbed therefrom into a solvent and, after release from the absorbate, recycled into reaction zone A.

    摘要翻译: 制备丙烯醛或丙烯酸或其混合物的方法作为丙烷的目标产物,其中丙烷在反应区A中在非均相催化下部分脱氢,形成的分子氢至少部分地燃烧到水中,存在于 在反应区A中形成的产物气体A被除去,产物气体A另外用于给反应区B充电,其中反应区A中形成的丙烯在剩余的丙烷存在下被部分氧化,得到目标产物。 将目标产物从反应区B中形成的产物气体B中除去,剩余的残余气体中存在的丙烷从其中吸收到溶剂中,并且在从吸收物质释放后再循环到反应区A中。