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    Method for starting a gas-phase oxidation reactor
    4.
    发明授权
    Method for starting a gas-phase oxidation reactor 有权
    启动气相氧化反应器的方法

    公开(公告)号：US08492566B2

    公开(公告)日：2013-07-23

    申请号：US12936807

    申请日：2009-04-07

    申请人： Hagen Wilmer ,  Jürgen Zühlke ,  Thomas Lautensack ,  Hans-Martin Allmann ,  Frank Rosowski ,  Cornelia Katharina Dobner

    发明人： Hagen Wilmer ,  Jürgen Zühlke ,  Thomas Lautensack ,  Hans-Martin Allmann ,  Frank Rosowski ,  Cornelia Katharina Dobner

    IPC分类号： C07D307/89

    CPC分类号： C07C51/265 ,  C07D307/89

    摘要： What is described is a process for starting up a gas phase oxidation reactor for oxidation of o-xylene to phthalic anhydride, said reactor comprising at least one catalyst layer and being temperature-controllable by means of a heat carrier medium, wherein a) the catalyst layer is interrupted by a moderator layer which is less catalytically active than the catalyst layer or is catalytically inactive, b) a gas stream is passed through the reactor with an initial loading of o-xylene and at an initial temperature of the heat transfer medium, c) the loading of the gas stream is increased to a target loading and, in parallel, the temperature of the heat transfer medium is lowered to an operating temperature. The introduction of the moderator layer allows the loading to be increased more rapidly and the startup time to be shortened.

    摘要翻译： 描述的是用于启动用于将邻二甲苯氧化成邻苯二甲酸酐的气相氧化反应器的方法，所述反应器包括至少一个催化剂层，并且可通过热载体介质温度控制，其中a）催化剂 层被催化剂层催化活性较低或催化无活性的中间体层中断，b）气流以邻二甲苯的初始负荷和传热介质的初始温度通过反应器， c）将气流的负载增加到目标负载，并且并联地将传热介质的温度降低到工作温度。 调节器层的引入允许加载更快速并且启动时间被缩短。

    METHOD FOR STARTING A GAS-PHASE OXIDATION REACTOR
    6.
    发明申请
    METHOD FOR STARTING A GAS-PHASE OXIDATION REACTOR 有权
    启动气相氧化反应器的方法

    公开(公告)号：US20110034707A1

    公开(公告)日：2011-02-10

    申请号：US12936807

    申请日：2009-04-07

    申请人： Hagen Wilmer ,  Zürgen Zühike ,  Thomas Lautensack ,  Hans-Martin Allmann ,  Frank Rosowski ,  Cornelia Katharina Dobner

    发明人： Hagen Wilmer ,  Zürgen Zühike ,  Thomas Lautensack ,  Hans-Martin Allmann ,  Frank Rosowski ,  Cornelia Katharina Dobner

    IPC分类号： C07D307/89

    CPC分类号： C07C51/265 ,  C07D307/89

    摘要： What is described is a process for starting up a gas phase oxidation reactor for oxidation of o-xylene to phthalic anhydride, said reactor comprising at least one catalyst layer and being temperature-controllable by means of a heat carrier medium, wherein a) the catalyst layer is interrupted by a moderator layer which is less catalytically active than the catalyst layer or is catalytically inactive, b) a gas stream is passed through the reactor with an initial loading of o-xylene and at an initial temperature of the heat transfer medium, c) the loading of the gas stream is increased to a target loading and, in parallel, the temperature of the heat transfer medium is lowered to an operating temperature. The introduction of the moderator layer allows the loading to be increased more rapidly and the startup time to be shortened.

    摘要翻译： 描述的是用于启动用于将邻二甲苯氧化成邻苯二甲酸酐的气相氧化反应器的方法，所述反应器包括至少一个催化剂层，并且可通过热载体介质温度控制，其中a）催化剂 层被催化剂层催化活性较低或催化无活性的中间体层中断，b）气流以邻二甲苯的初始负荷和传热介质的初始温度通过反应器， c）将气流的负载增加到目标负载，并且并联地将传热介质的温度降低到工作温度。 调节器层的引入允许加载更快速并且启动时间被缩短。