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    VERFAHREN ZUR HERSTELLUNG VON ACROLEIN UND/ODER ACRYLSÄURE AUS PROPAN
    21.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON ACROLEIN UND/ODER ACRYLSÄURE AUS PROPAN 审中-公开
    VERFAHREN ZUR HERSTELLUNG VON ACROLEIN UND / ODERACRYLSÄUREAUS PROPAN

    公开(公告)号：EP1109773A1

    公开(公告)日：2001-06-27

    申请号：EP99941556.5

    申请日：1999-08-10

    申请人： BASF AKTIENGESELLSCHAFT

    发明人： MACHHAMMER, Otto ,  TENTEN, Andreas ,  JACHOW, Harald ,  HAUPT, Susanne ,  ARNOLD, Heiko ,  UNVERRICHT, Signe

    IPC分类号： C07C57/05 ,  C07C45/35 ,  C07C5/333

    CPC分类号： C07C51/215 ,  C07C45/33 ,  C07C45/35 ,  C07C51/252 ,  Y02P20/582 ,  C07C47/22 ,  C07C57/04

    摘要： A method for producing acrolein and/or acrylic acid from propane, whereby the propane undergoes partial homogeneous and/or heterogeneous catalysed oxydehydrogenation with molecular oxygen in a first reaction step to form propane. The product gas mixture formed in the first reaction step is subsequently used to produce acrolein and/or acrylic acid by means of gas-phase catalytic propane oxidation. The method is characterised in that the molecular oxygen which is required in the first reaction step and is different from the recycled oxygen gas is added to the initial reaction gas mixture of the first reaction step as modified air containing nitrogen with the proviso that the nitrogen content of the modified air is lower than and the oxygen content of the modified air is greater than the corresponding air contents. The invention is also characterised in that at least one part of the molecular nitrogen contained in the product gas mixture is separated from the product gas mixture before the product gas mixture containing propane formed in the first reaction step is further processed to produce acrolein and/or acrylic acid in at least one additional reaction step.

    摘要翻译： 一种由丙烷生产丙烯醛和/或丙烯酸的方法，其中丙烷在第一反应步骤中与分子氧经历部分均相和/或多相催化氧化脱氢以形成丙烷。 随后将在第一反应步骤中形成的产物气体混合物用于通过气相催化丙烷氧化生产丙烯醛和/或丙烯酸。 该方法的特征在于，将第一反应步骤中所需的与再循环氧气不同的分子氧作为含氮改性空气添加到第一反应步骤的初始反应气体混合物中，条件是氮含量 的改性空气的氧含量低于并且改性空气的氧含量大于相应的空气含量。 本发明的特征还在于，在第一反应步骤中形成的含有丙烷的产物气体混合物被进一步处理以产生丙烯醛之前，将产物气体混合物中所含的至少一部分分子氮与产物气体混合物分离，和/或 丙烯酸在至少一个另外的反应步骤中进行。

    VERFAHREN DER HETEROGEN KATALYSIERTEN PARTIELLEN GASPHASENOXIDATION VON PROPEN ZU ACRYLSÄURE
    26.
    发明公开
    VERFAHREN DER HETEROGEN KATALYSIERTEN PARTIELLEN GASPHASENOXIDATION VON PROPEN ZU ACRYLSÄURE 有权
    VERFAHREN DER HETEROGEN KATALYSIERTEN PARTIELLEN GASPHASENOXIDATION VON PROPEN ZUACRYLSÄURE

    公开(公告)号：EP1611077A1

    公开(公告)日：2006-01-04

    申请号：EP04722160.1

    申请日：2004-03-20

    申请人： BASF Aktiengesellschaft

    发明人： PETZOLDT, Jochen ,  DIETERLE, Martin ,  ARNOLD, Heiko ,  RUPPEL, Wilhelm ,  MÜLLER-ENGEL, Klaus-Joachim

    IPC分类号： C07C57/05

    CPC分类号： C07C51/252 ,  C07C57/04

    摘要： The invention relates to a method for the heterogeneously catalysed partial gas phase oxidation of propene to form acrylic acid. According to said method, the initial mixture of reaction gas containing propene is oxidised, in a first reaction step, on a fixed-bed catalyst bed (1) consisting of a plurality of fixed-bed catalyst bed zones and arranged in two successive temperature zones A and B. The acrolein-containing product gas mixture of the first reaction step is then oxidised, in a second reaction step, on a fixed-bed catalyst bed (2) consisting of a plurality of fixed-bed catalyst bed zones and arranged in two successive temperature zones C and D. The transition from one temperature zone to another temperature zone does not spatially coincide with a transition from a fixed-bed catalyst bed zone to another fixed-bed catalyst bed zone within a reaction step.

    摘要翻译： 本发明涉及丙烯非均相催化部分气相氧化形成丙烯酸的方法。 根据所述方法，在第一反应步骤中，将包含丙烯的反应气体的初始混合物在固定床催化剂床（1）上氧化，所述固定床催化剂床（1）由多个固定床催化剂床区构成并且布置在两个连续的温度区 A和B.然后在第二反应步骤中，将第一反应步骤的含丙烯醛的产物气体混合物在固定床催化剂床（2）上氧化，所述固定床催化剂床（2）由多个固定床催化剂床区组成， 两个连续的温度区域C和D.从一个温度区域到另一个温度区域的转变在空间上不与从反应步骤内的固定床催化剂床区到另一个固定床催化剂床区的转变在空间上一致。