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    PROCESS FOR PREPARING ISOOLEFINS
    1.
    发明申请
    PROCESS FOR PREPARING ISOOLEFINS 审中-公开
    制备ISOOLEFINS的方法

    公开(公告)号：US20080058572A1

    公开(公告)日：2008-03-06

    申请号：US11839597

    申请日：2007-08-16

    申请人： Silvia Santiago Fernandez ,  Markus Winterberg ,  Franz Nierlich ,  Stephan Houbrechts ,  Horst-Werner Zanthoff ,  Wilfried Bueschken ,  Walter Luh ,  Georg Skillas

    发明人： Silvia Santiago Fernandez ,  Markus Winterberg ,  Franz Nierlich ,  Stephan Houbrechts ,  Horst-Werner Zanthoff ,  Wilfried Bueschken ,  Walter Luh ,  Georg Skillas

    IPC分类号： C07C1/20

    CPC分类号： C07C1/20 ,  C07C1/24 ,  C07C2529/035 ,  C07C11/02

    摘要： A continuous process for preparing an isoolefin having 4 to 6 carbon atoms is performed by cleaving a compound of the formula I R1—O—R2   (I) wherein R1=a tertiary alkyl radical having 4 to 6 carbon atoms, and R2=H or an alkyl radical, in a gas phase over a solid catalyst, in the temperature range of 200 to 400° C., at a pressure of 0.1 to 1.2 MPa, in a reactor which is equipped with a heating jacket and is heated with a liquid heat carrier, wherein the cleavage is carried out in such a way that a temperature drop in the catalyst zone at any point in relation to the entrance temperature is less than 50° C., wherein (i) a reaction mixture in the reactor and (ii) the heat carrier in the jacket flow through the reactor in cocurrent, and wherein a temperature difference of the heat carrier between a feed point to the reactor and an outlet from the reactor is adjusted to less than 40° C.

    摘要翻译： 用于制备具有4至6个碳原子的异烯烃的连续方法是通过将式I的化合物<？in-line-formula description =“In-Line Formulas”end =“lead”→> R 1 （I）<？in-line-formula description =“In-line Formulas”end =“tail”？>其中R 1 = 在固体催化剂上的气相中，在200-400℃的温度范围内，具有4-6个碳原子的叔烷基和R 2 = H或烷基，在 在装有加热套的反应器中的压力为0.1至1.2MPa，并用液体热载体加热，其中切割是以任何相关位置的催化剂区域的温度下降的方式进行的 入口温度低于50℃，其中（i）反应器中的反应混合物和（ii）夹套中的热载体并流流过反应器，并且其中热载体的温度差在 进料点到反应器 并将来自反应器的出口调节至小于40℃。

    PROCESS FOR THE DISSOCIATION OF MTBE
    4.
    发明申请
    PROCESS FOR THE DISSOCIATION OF MTBE 有权
    MTBE分解方法

    公开(公告)号：US20080058575A1

    公开(公告)日：2008-03-06

    申请号：US11838340

    申请日：2007-08-14

    申请人： Markus Winterberg ,  Walter Luh ,  Silvia Santiago Fernandez ,  Franz Nierlich ,  Stephan Houbrechts ,  Dietrich Maschmeyer ,  Horst-Werner Zanthoff ,  Wilfried Buschken

    发明人： Markus Winterberg ,  Walter Luh ,  Silvia Santiago Fernandez ,  Franz Nierlich ,  Stephan Houbrechts ,  Dietrich Maschmeyer ,  Horst-Werner Zanthoff ,  Wilfried Buschken

    IPC分类号： C07C1/20

    CPC分类号： C07C1/20 ,  C07C29/80 ,  C07C41/42 ,  Y02P20/127 ,  C07C11/09 ,  C07C31/04 ,  C07C43/04

    摘要： Isobutene is prepared by dissociation of MTBE in the gas phase, by a) fractional distillation of an MTBE-containing stream comprising feed MTBE (I) and a recycle stream (VIII) to give an MTBE-containing overhead stream (II) and a bottom stream (III) having a boiling point higher than MTBE, b) catalytic dissociation of the overhead stream (II) obtained in step a) to give a dissociation product (IV), c) separation by distillation of the dissociation product (IV) obtained in step b) into an overhead stream (V) comprising more than 90% by mass of isobutene and a bottom stream (VI) comprising diisobutene, MTBE and more than 50% of the methanol present in the dissociation product (IV), d) fractional distillation of the bottom stream obtained in step c) under conditions under which the methanol is obtained as bottom product (VII) and more than 99% of the MTBE is obtained in the overhead product (VIII), and e) recirculation of the overhead product (VIII) to step a).

    摘要翻译： 通过a）分馏含有进料MTBE（I）和再循环物流（VIII）的含MTBE的物流，得到含MTBE的塔顶馏出物流（II）和底部 沸点高于MTBE的流（III），b）步骤a）中获得的塔顶馏出物流（II）的催化解离，得到解离产物（IV），c）通过蒸馏分离获得的解离产物（IV） 在步骤b）中进入包含大于90质量％的异丁烯的塔顶物流（V）和包含二异丁烯，MTBE和存在于解离产物（IV）中的甲醇的50％以上的底部物流（VI），d） 在塔顶馏出物（VIII）中获得步骤c）中获得的底部物流的分馏，其中获得作为底部产物（VII）的甲醇和高于99％的MTBE的馏分，和e）塔顶馏出物的再循环 产物（VIII）至步骤a）。

    Process for the dissociation of MTBE
    6.
    发明授权
    Process for the dissociation of MTBE 有权
    MTBE解离过程

    公开(公告)号：US07919662B2

    公开(公告)日：2011-04-05

    申请号：US11838340

    申请日：2007-08-14

    申请人： Markus Winterberg ,  Walter Luh ,  Silvia Santiago Fernandez ,  Franz Nierlich ,  Stephan Houbrechts ,  Dietrich Maschmeyer ,  Horst-Werner Zanthoff ,  Wilfried Büschken

    发明人： Markus Winterberg ,  Walter Luh ,  Silvia Santiago Fernandez ,  Franz Nierlich ,  Stephan Houbrechts ,  Dietrich Maschmeyer ,  Horst-Werner Zanthoff ,  Wilfried Büschken

    IPC分类号： C07C1/20

    CPC分类号： C07C1/20 ,  C07C29/80 ,  C07C41/42 ,  Y02P20/127 ,  C07C11/09 ,  C07C31/04 ,  C07C43/04

    摘要： Isobutene is prepared by dissociation of MTBE in the gas phase, by a) fractional distillation of an MTBE-containing stream comprising feed MTBE (I) and a recycle stream (VIII) to give an MTBE-containing overhead stream (II) and a bottom stream (III) having a boiling point higher than MTBE, b) catalytic dissociation of the overhead stream (II) obtained in step a) to give a dissociation product (IV), c) separation by distillation of the dissociation product (IV) obtained in step b) into an overhead stream (V) comprising more than 90% by mass of isobutene and a bottom stream (VI) comprising diisobutene, MTBE and more than 50% of the methanol present in the dissociation product (IV), d) fractional distillation of the bottom stream obtained in step c) under conditions under which the methanol is obtained as bottom product (VII) and more than 99% of the MTBE is obtained in the overhead product (VIII), and e) recirculation of the overhead product (VIII) to step a).

    摘要翻译： 通过a）分馏含有进料MTBE（I）和再循环物流（VIII）的含MTBE的物流，得到含MTBE的塔顶馏出物流（II）和底部 沸点高于MTBE的流（III），b）步骤a）中获得的塔顶馏出物流（II）的催化解离，得到解离产物（IV），c）通过蒸馏分离获得的解离产物（IV） 在步骤b）中进入包含大于90质量％的异丁烯的塔顶物流（V）和包含二异丁烯，MTBE和存在于解离产物（IV）中的甲醇的50％以上的底部物流（VI），d） 在塔顶馏出物（VIII）中获得步骤c）中获得的底部物流的分馏，其中获得作为底部产物（VII）的甲醇和高于99％的MTBE的馏分，和e）塔顶馏出物的再循环 产物（VIII）至步骤a）。