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    ROHRBÜNDELREAKTOR FÜR UNKATALYSIERTE ODER HOMOGENKATALYSIERTE REAKTIONEN
    7.
    发明公开
    ROHRBÜNDELREAKTOR FÜR UNKATALYSIERTE ODER HOMOGENKATALYSIERTE REAKTIONEN 有权
    管式反应器非催化或均匀催化反应

    公开(公告)号：EP2389241A2

    公开(公告)日：2011-11-30

    申请号：EP10701318.7

    申请日：2010-01-19

    Applicant: BASF SE

    Inventor： TELES, Joaquim, Henrique ,  RESCH, Peter ,  RUPPEL, Wilhelm ,  WEGERLE, Ulrike ,  GERLINGER, Wolfgang ,  RÖSSLER-FEIGEL, Beatrice ,  MEIER, Anton ,  MÜLLER, Christian

    IPC: B01J19/24

    CPC classification number: B01J19/2425 ,  B01J4/001 ,  B01J19/006 ,  B01J2219/00085 ,  B01J2219/00166 ,  F28D7/16 ,  F28F9/0265 ,  F28F9/0275 ,  F28F9/0278 ,  Y02P20/582

    Abstract: The invention relates to a tube bundle reactor having a flat feed dome. Alternatively, the discharge dome can also be designed flat. The flat design reduces the reaction heat developing in the hood in reaction types that take place not only in the tube bundle (non-catalyzed reactions and reactions with homogenously distributed catalyst). Undesired reactions that already take place in the dome due to accumulated heat are thus heavily suppressed, whereby greater selectivity in temperature-sensitive reactions is achieved. Additionally, the temperature distribution within the domes can be precisely controlled. The tube bundle reactor comprises a tube bundle that has a feed end connected to a feed dome of the tube bundle reactor, wherein the feed dome is designed in a flat shape having a cross-sectional surface at the feed end and an inner volume, and the ratio of the inner volume to the cross-sectional surface is less than 0.35 m. The invention is furthermore implemented by a method for operating a tube bundle reactor, comprising: introducing a reactant mixture into a tube bundle and converting at least a portion of the reactant mixture into a product inside the tube bundle. The introduction step comprises: feeding the reactant mixture into an inner space of a feed dome of the tube bundle reactor and forwarding the reactant mixture into a feed end of the tube bundle in the form of a fluid flow. The fluid flow has a cross-sectional surface upon entering the feed end and the inner space of the feed dome through which the fluid flows has an inner volume; wherein the ratio of the inner volume to the cross-sectional surface is less than 0.35 m.

    VERFAHREN DER HETEROGEN KATALYSIERTEN PARTIELLEN GASPHASENOXIDATION VON PROPEN ZU ACRYLSÄURE
    8.
    发明授权
    VERFAHREN DER HETEROGEN KATALYSIERTEN PARTIELLEN GASPHASENOXIDATION VON PROPEN ZU ACRYLSÄURE 有权

    公开(公告)号：EP1611077B1

    公开(公告)日：2008-03-19

    申请号：EP04722160.1

    申请日：2004-03-20

    Applicant: BASF SE

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

    IPC: C07C57/05

    CPC classification number: C07C51/252 ,  C07C57/04

    Abstract: 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.

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