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    Method for the Synthesis of Aromatic Hydrocarbons From C1-C4-Alkanes and Utilization of C1-C4-Alkane-Comprising Product Stream
    57.
    发明申请
    Method for the Synthesis of Aromatic Hydrocarbons From C1-C4-Alkanes and Utilization of C1-C4-Alkane-Comprising Product Stream 审中-公开
    从C1-C4烷烃合成芳香烃的方法和使用C1-C4-烷烃的产品流

    公开(公告)号：US20080293980A1

    公开(公告)日：2008-11-27

    申请号：US12091874

    申请日：2006-10-30

    申请人： Frank Kiesslich ,  Sven Crone ,  Otto Machhammer ,  Frederik van Laar ,  Ekkehard Schwab ,  Gotz-Peter Schindler

    发明人： Frank Kiesslich ,  Sven Crone ,  Otto Machhammer ,  Frederik van Laar ,  Ekkehard Schwab ,  Gotz-Peter Schindler

    IPC分类号： C07C15/00

    CPC分类号： B01J29/46 ,  C01B3/50 ,  C01B2203/048 ,  C01B2203/0495 ,  C01C3/0212 ,  C07C2/84 ,  C07C2529/06 ,  C07C2529/48 ,  Y02P20/13 ,  C07C15/00

    摘要： The present invention relates to a method for producing an aromatic hydrocarbon from a C1-C4-alkane, or a mixture of C1-C4-alkanes, which comprises a) bringing a feedstock stream A which comprises a C1-C4-alkane, or a mixture of C1-C4-alkanes, into contact with a catalyst and reacting a part of the C1-C4-alkane, or a part of the mixture of the C1-C4-alkanes, to form aromatic hydrocarbon(s); b) fractionating the product stream B resulting from step a) into a low-boiler stream C which comprises the majority of the hydrogen and of the unreacted C1-C4-alkane, or of the mixture of C1-C4-alkanes, and a high-boiler stream D, or a plurality of high-boiler streams D′, which stream or streams comprises or comprise the majority of the aromatic hydrocarbon formed; and c) feeding the low-boiler stream C to a further C1-C4-alkane-consuming method, if appropriate the hydrogen present in the low-boiler stream C being separated off in advance.

    摘要翻译： 本发明涉及一种由C 1 -C 4烷烃或C 1 -C 4烷烃的混合物制备芳族烃的方法，该方法包括：a）将包含C 1 -C 4烷烃的原料流A或 使C1-C4烷烃的混合物与催化剂接触并使部分C1-C4-烷烃或C1-C4-烷烃混合物的一部分反应形成芳族烃; b）将由步骤a）得到的产物流B分馏成包含大部分氢气和未反应的C 1 -C 4烷烃或C 1 -C 4烷烃混合物的低沸点料流C和高 - 沸腾物流D或多个高沸点物流D'，其流或物流包含或包含形成的大部分芳族烃; 并且c）如果适当，将低沸点物流C进料到另外的C1-C4-烷烃消耗方法中，预先分离出低沸点物流C中存在的氢。

    Method for the production of maleic anhydride
    60.
    发明申请
    Method for the production of maleic anhydride 失效
    马来酸酐生产方法

    公开(公告)号：US20060241309A1

    公开(公告)日：2006-10-26

    申请号：US10565889

    申请日：2004-07-06

    申请人： Mark Duda ,  Otto Machhammer ,  Alexander Weck

    发明人： Mark Duda ,  Otto Machhammer ,  Alexander Weck

    IPC分类号： C07D307/34

    CPC分类号： C07C51/215 ,  C07C57/145

    摘要： A process for preparing maleic anhydride by oxidizing n-butane in the gas phase under heterogeneous catalysis with oxygen-containing gases over a vanadium-, phosphorus- and oxygen-containing catalyst in a reactor unit at a temperature in the range from 350 to 500° C., removing the maleic anhydride formed to form a gas stream which comprises unconverted n-butane and water and recycling at least a portion of the unconverted n-butane to the reactor unit, by feeding to the reactor unit an inlet stream having an n-butane concentration of from 0.5 to 1.5% by volume and an oxygen concentration of from 5 to 21% by volume, establishing a pressure at the inlet to the reactor unit of from 0.4 to 2 MPa abs, and converting from 40 to 100% of the n-butane from the inlet stream per reactor pass.

    摘要翻译： 在反应器单元中的含钒，含磷和氧的催化剂中，在350〜500℃的温度范围内，用含氧气体在非均相催化下，在气相中氧化正丁烷，制备马来酸酐的方法 C.去除形成的马来酸酐以形成包含未转化的正丁烷和水的气流，并将未转化的正丁烷的至少一部分再循环到反应器单元，通过向反应器单元供给具有n - 丁烷浓度为0.5至1.5体积％，氧浓度为5至21体积％，在反应器单元入口处建立压力为0.4至2MPa abs，并将40至100％ 来自每个反应器的入口流的正丁烷通过。