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    PROCESS FOR THE DISSOCIATION OF MTBE
    1.
    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
    4.
    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）。

    PROCESS FOR PREPARING ISOOLEFINS
    7.
    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℃。

    Preparation of isobutene by dissociation of MTBE
    8.
    发明授权
    Preparation of isobutene by dissociation of MTBE 有权
    通过MTBE离解制备异丁烯

    公开(公告)号：US08940951B2

    公开(公告)日：2015-01-27

    申请号：US13381680

    申请日：2010-06-16

    申请人： Markus Winterberg ,  Dirk Roettger ,  Armin Rix ,  Reiner Bukohl ,  Walter Luh ,  Holger Wiederhold ,  Gunnar Schilling ,  Christian Boeing

    发明人： Markus Winterberg ,  Dirk Roettger ,  Armin Rix ,  Reiner Bukohl ,  Walter Luh ,  Holger Wiederhold ,  Gunnar Schilling ,  Christian Boeing

    IPC分类号： C07C1/20 ,  C07C11/09

    CPC分类号： C07C11/09 ,  C07C1/20

    摘要： A process for preparing isobutene by dissociation of MTBE, including: a) reaction of isobutene-containing hydrocarbon mixtures, with methanol, present in one or more methanol-containing streams, over acidic ion exchangers to give a stream, containing MTBE and TBA; b) separation of a stream containing MTBE and TBA, from a stream by distillation; c) dissociation of a stream in the gas phase over a heterogeneous catalyst to give a stream containing at least isobutene, methanol, MTBE and water and possibly TBA, d) separation of a stream by distillation to give a stream containing in each case more than 50% by mass of the amounts of methanol, TBA and water present in another stream and a stream containing isobutene, e) separation of water from stream to below 1% by mass by distillation to give a stream, f) total or partial recirculation of the methanol-containing stream.

    摘要翻译： 一种通过MTBE离解制备异丁烯的方法，包括：a）通过酸性离子交换剂使存在于一个或多个含甲醇的物流中的含异丁烯的烃混合物与甲醇反应，得到含有MTBE和TBA的物流; b）通过蒸馏从流中分离含有MTBE和TBA的物流; c）气相中的物流在非均相催化剂上的解离，得到至少含有异丁烯，甲醇，MTBE和水以及可能的TBA的物流，d）通过蒸馏分离物流，得到含有多于 50重量％的甲醇，TBA和存在于另一个流中的水和含有异丁烯的物流，e）通过蒸馏将水从流分离成低于1质量％，得到流，f）全部或部分再循环 含甲醇的流。

    PREPARATION OF ISOBUTENE BY DISSOCIATION OF MTBE
    9.
    发明申请
    PREPARATION OF ISOBUTENE BY DISSOCIATION OF MTBE 有权
    通过MTBE的分离制备ISOBUTEN

    公开(公告)号：US20120142985A1

    公开(公告)日：2012-06-07

    申请号：US13381680

    申请日：2010-06-16

    申请人： Markus Winterberg ,  Dirk Roettger ,  Armin Rix ,  Reiner Bukohl ,  Walter Luh ,  Holger Wiederhold ,  Gunnar Schilling ,  Christian Boeing

    发明人： Markus Winterberg ,  Dirk Roettger ,  Armin Rix ,  Reiner Bukohl ,  Walter Luh ,  Holger Wiederhold ,  Gunnar Schilling ,  Christian Boeing

    IPC分类号： C07C1/20 ,  F28F1/00

    CPC分类号： C07C11/09 ,  C07C1/20

    摘要： The invention relates to a method for producing isobutene by cracking MTBE, wherein the following steps are carried out: a) MTBE synthesis; reacting isobutene-containing hydrocarbon mixtures (II) with methanol (III), contained in one or more methanol-containing streams (VIII, IX), on acidic ion exchangers obtaining a stream (IV) containing MTBE and TBA, b) MTBE separation; separating a stream (V) containing MTBE and TBA from stream (IV) by means of distillation, c) MTBE cracking; cracking the stream (V) on a heterogenic catalyst in the gas phase, thus obtaining a stream (VI) which contains at least isobutene, methanol, MTBE, water, and optionally TBA, d) isobutene separation; separating the stream (VI) by means of distillation, thus obtaining a stream (VII) containing more than 50 mass % of the amounts of methanol, TBA, and water contained in stream (VI), and a stream (XVII) containing isobutene, e) water separation; separating, water from the stream (VII) to below 1 mass % by means of distillation, thus obtaining a stream (VIII), f) recirculating; complete or partial recirculation of the methanol-containing stream (VIII) into the MTBE synthesis. The invention further relates to a tube bundle device comprising the following elements: i) tube bundle, ii) tube bottom, iii) deflection plates, iv) inner shell, iv) pressure bearing outer shell, comprising at least one inlet and outlet, vi) shell chamber, comprising a fluid releasing or absorbing heat, characterized in that the inner shell is connected to the deflection plates attached over the length of the tube bundle without a gap, or with a small gap, and is connected to the tube bottom, wherein the fluid present in the shell chamber encloses the inner shell on both sides.

    摘要翻译： 本发明涉及通过裂解MTBE生产异丁烯的方法，其中进行以下步骤：a）MTBE合成; 使含异丁烯的烃混合物（II）与含有一种或多种含甲醇的物流（VIII，IX）中的甲醇（III）在酸性离子交换剂上反应，得到含有MTBE和TBA的物流（Ⅳ），b）MTBE分离; 通过蒸馏从流（IV）分离含有MTBE和TBA的物流（V）; c）MTBE裂解; 在气相中的异源催化剂上裂解物流（V），从而获得至少含有异丁烯，甲醇，MTBE，水和任选的TBA的流（VI），d）异丁烯分离; 通过蒸馏分离料流（VI），从而获得含有大于50质量％的流（VI）中所含的甲醇，TBA和水量的流（VII）和含有异丁烯的料流（XVII） e）水分离; 通过蒸馏从水（VII）中将水分离成低于1质量％，从而获得流（VIII），f）再循环; 将含甲醇的物流（VIII）完全或部分再循环到MT​​BE合成中。 本发明还涉及一种管束装置，其包括以下元件：i）管束，ii）管底，iii）偏转板，iv）内壳，iv）承压外壳，包括至少一个入口和出口，vi ）壳体，其包括释放或吸收热量的流体，其特征在于，所述内壳连接到在所述管束的长度上连接的所述偏转板，而没有间隙或具有小间隙，并且连接到所述管底部， 其中存在于壳室中的流体在两侧封闭内壳。

    PROCESS FOR PREPARING ISOBUTENE BY CLEAVING MTBE-CONTAINING MIXTURES
    10.
    发明申请
    PROCESS FOR PREPARING ISOBUTENE BY CLEAVING MTBE-CONTAINING MIXTURES 有权
    通过清除含MTBE的混合物制备ISOBUTEN的方法

    公开(公告)号：US20110118523A1

    公开(公告)日：2011-05-19

    申请号：US13054115

    申请日：2009-05-19

    申请人： Markus Winterberg ,  Dirk Roettger ,  Rainer Bukohl ,  Holger Wiederhold ,  Walter Luh

    发明人： Markus Winterberg ,  Dirk Roettger ,  Rainer Bukohl ,  Holger Wiederhold ,  Walter Luh

    IPC分类号： C07C1/20

    CPC分类号： C07C1/20 ,  C07C7/04 ,  C07C2521/12 ,  C07C2523/02 ,  C07C11/09

    摘要： A process for preparing isobutene from MTBE-containing mixtures, including: a) in a reactor, cleaving a mixture obtained from an MTBE-containing feedstock and/or an MTBE-containing stream, affording a stream of reaction products including isobutene, methanol, MTBE, and by-products, which are a1) high boilers having a boiling range above 55° C. at a pressure of 0.1 MPa, a2) medium boilers having a boiling range of 12 to 55° C. at a pressure of 0.1 MPa, and a3) low boilers having a boiling range below 12° C. at a pressure of 0.1 MPa; b) distillatively separating stream into a stream which contains the isobutene product and low boilers, and a stream which contains MTBE, methanol, medium boilers and high boilers; c) distillatively separating stream to obtain an MTBE-containing stream and a methanol-containing high boiler stream; and d) recycling an MTBE-containing stream into a) of the process, the medium boilers being removed completely or partially before d) from the streams rich in medium boilers.

    摘要翻译： 一种从含MTBE的混合物制备异丁烯的方法，包括：a）在反应器中，裂解从含有MTBE的原料和/或含MTBE的料流获得的混合物，得到包括异丁烯，甲醇，MTBE ，副产物，a1）沸点范围在55℃以上，压力为0.1MPa的高锅炉，a2）沸点范围为12〜55℃，压力为0.1MPa的中等锅炉， 和a3）在0.1MPa的压力下沸点低于12℃的低锅炉; b）蒸馏分离成含有异丁烯产物和低锅炉的料流，以及含有MTBE，甲醇，中等锅炉和高锅炉的料流; c）蒸馏分离料流以获得含MTBE的料流和含甲醇的高锅炉料流; 和d）将含MTBE的流再循环到该方法的一个步骤中，在d）从富含中等锅炉的物流中完全或部分地去除中等锅炉。