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    VERFAHREN ZUR OXIDATIVEN DEHYDRIERUNG VON N-BUTENEN ZU BUTADIEN
    1.
    发明公开
    VERFAHREN ZUR OXIDATIVEN DEHYDRIERUNG VON N-BUTENEN ZU BUTADIEN 有权

    公开(公告)号：EP2945923A1

    公开(公告)日：2015-11-25

    申请号：EP14700646.4

    申请日：2014-01-15

    Applicant: BASF SE

    Inventor： JOSCH, Jan Pablo ,  WECK, Alexander ,  GIESA, Sonja ,  BÜTEHORN, Steffen ,  BALEGEDDE RAMACHANDRAN, Ragavendra Prasad ,  BENFER, Regina ,  WEBER, Markus

    IPC: C07C5/48 ,  C07C7/00 ,  C07C7/08 ,  C07C7/11 ,  C07C7/05 ,  C07C11/167

    CPC classification number: C07C5/48 ,  C07C7/005 ,  C07C7/05 ,  C07C7/08 ,  C07C7/11 ,  C07C2523/887 ,  C07C11/167

    Abstract: The invention relates to a method for producing butadine from n-butenens, consisting of the following steps: A) a feed gas flow (a) containing n-butenes is provided; B) the feed gas flow (a) containing n-butenes and an oxygen-containing gas is fed to at least one dehydrogenation area and is oxidatively dehydrogenated from n-butenes to form butadiene; a product gas flow (b) containing butadiene, unreacted n-butenes, water vapour, oxygen, low-boiling hydrocarbons, optionally carbon oxides and optionally inert gases is obtained; C) the product gas flow (b) is cooled and compressed in at least compression step; at least one condensate flow (c1) containing water and a gas flow (c2) containing butadiene, n-butenes, water vapour, oxygen, low-boiling hydrocarbons, optionally carbon oxides and optionally inert gases is obtained; D) non-condensable and low-boiling gas component parts containing oxygen, low-boiling hydrocarbons, optionally carbon oxides and optionally inert gases are separated from the gas flow (c2) by Da) absorbing C4-hydrocarbons containing butadiene and n-butenes in absorption means boiling at a high temperature, wherein an absorption agent flow charged with C4-hydrocarbons and the gas flow (d2) are obtained, Db) the oxygen is removed from the absorption agent flow charged with the C4-hydrocarbon by stripping with the inert gas, and Dc) the C
    4 hydrocarbons are desorbed from the charged absorption agent flow and a C
    4 -product gas flow (d1), which consists essentially of C
    4 -hydrocarbons and has less that 100ppm oxygen, is obtained. E) the C4-product flow (d1) is separated by extractive distillation using a selected solvent for butadiene in a butadiene and the material flow (e1) containing the selective solvent and a material flow (e2) containing n-butenes; F) the butadiene and the material flow (e1) containing the selective solvent is distilled in a material flow (f1) consisting essentially of the selective solvent and a material flow (f2) containing a butadiene.

    Abstract translation: 本发明涉及由正丁烯制备丁二烯的方法，其由以下步骤组成：A）提供含有正丁烯的原料气流（a）; B）将含有正丁烯和含氧气体的进料气流（a）供入至少一个脱氢区并从正丁烯氧化脱氢形成丁二烯; 得到包含丁二烯，未反应的正丁烯，水蒸气，氧气，低沸点烃，任选的碳氧化物和任选的惰性气体的产物气流（b）; C）产品气流（b）至少在压缩步骤中被冷却和压缩; 获得至少一种含水和含丁二烯，正丁烯，水蒸气，氧气，低沸点烃，任选的碳氧化物和任选的惰性气体的气流（c2）的冷凝物流（c1） D）将含有氧，低沸点烃，任选碳氧化物和任选惰性气体的不可冷凝和低沸点气体组分部分从气流（c2）中分离出来，Da）将含有丁二烯和正丁烯的C4-烃 在高温下沸腾的吸收装置，其中获得装有C4-烃的吸收剂流和气流（d2），Db）通过用惰性溶剂汽提从装有C4-烃的吸收剂流中除去氧气 气体和Dc），C 4烃从加入的吸收剂流中解吸并获得基本上由C 4烃组成且具有小于100ppm氧的C 4产物气流（d 1）。 E）使用用于丁二烯中丁二烯的选定溶剂的萃取蒸馏和含有选择性溶剂和含有正丁烯的物料流（e2）的物料流（e1）通过萃取蒸馏分离C4-产物流（d1） F）将丁二烯和含有选择性溶剂的物流（e1）在基本上由选择性溶剂组成的物流（f1）和含丁二烯的物流（f2）中蒸馏。

    REAKTOR ZUR DURCHFÜHRUNG EINER AUTOTHERMEN GASPHASENDEHYDRIERUNG
    10.
    发明公开
    REAKTOR ZUR DURCHFÜHRUNG EINER AUTOTHERMEN GASPHASENDEHYDRIERUNG 有权
    RURTOR ZURDURCHFÜHRUNGEINER AUTOTHERMEN GASPHASENDEHYDRIERUNG

    公开(公告)号：EP2931413A2

    公开(公告)日：2015-10-21

    申请号：EP13802644.8

    申请日：2013-12-11

    Applicant: BASF SE

    Inventor： OLBERT, Gerhard ,  TELLAECHE HERRANZ, Carlos ,  ASPRION, Norbert ,  WECK, Alexander ,  DAHLHOFF, Ellen

    IPC: B01J8/04 ,  B01J19/24 ,  C07C5/48

    CPC classification number: C07C5/48 ,  B01J8/0453 ,  B01J8/0492 ,  B01J19/2485 ,  B01J2208/00265 ,  B01J2208/00283 ,  B01J2208/0053 ,  B01J2208/00849 ,  B01J2208/00911 ,  B01J2208/00938 ,  Y02P20/52 ,  C07C11/04 ,  C07C11/06 ,  C07C11/08 ,  C07C11/09 ,  C07C11/167 ,  C07C15/46

    Abstract: The invention relates to a reactor (1) in the form of a cylinder with a vertical longitudinal axis, for performing an autothermal gas-phase dehydrogenation of a hydrocarbon-containing gas stream (2) with an oxygen-containing gas stream (3), obtaining a reaction gas mixture, on a heterogeneous catalyst, which is designed as monolith (4), wherein one or more catalytically active zones (5) are arranged in the interior of the reactor (1), each zone comprising a packing of monoliths (4) stacked one next to another and/or one on top of another and wherein a mixing zone (6) with fixed installations is provided upstream of each catalytically active zone (5). The reactor has: - one or more feeder lines (7) at the lower end thereof for the hydrocarbon-containing gas stream (2) to be dehydrogenated; - one or more feeder lines (9) that can be regulated independently of one another for the oxygen-containing gas stream (3) flowing into each of the mixing zones (6), each feeder line (9) feeding one or more distributors (10); - and one or more discharge lines (11) at the upper end of the reactor (1) for the reaction gas mixture from the autothermal gas-phase dehydrogenation, wherein the interior wall of the reactor (1) is furnished with a continuous insulation layer (13, 14, 15) and wherein the accessibility of one or each of the plurality of catalytically active zones (5) from outside the reactor is guaranteed via - one or more manholes (12), or wherein one or each of the plurality of catalytically active zones (5), each comprising a respective packing of monoliths stacked one next to another and/or one on top of an other including - the mixing zone (6) with fixed installations provided upstream of each catalytically active zone (5) - the one or more feeder lines (9) controllable independently of one another - and the one or more distributors (10) that are each fed via a respective feeder line (9), are constructed as a structural element (24) that can be individually installed or uninstalled.

    Abstract translation: 本发明涉及一种具有垂直纵轴的圆筒形式的反应器（1），用于使含烃气流（2）与含氧气流（3）进行自热气相脱氢， 在非均相催化剂上获得反应气体混合物，其被设计为整料（4），其中一个或多个催化活性区域（5）布置在反应器（1）的内部，每个区域包括整料的填料（ 4）彼此堆叠并且/或一个在另一个之上，并且其中具有固定设备的混合区域（6）设置在每个催化活性区域（5）的上游。 反应器具有： - 在其下端的一个或多个供料管线（7），用于使含烃气流（2）脱氢; - 一个或多个馈送管线（9），其可以彼此独立地调节用于流入每个混合区域（6）的含氧气体流（3），每个馈送管线（9）馈送一个或多个分配器（ 10）; - 和在反应器（1）的上端处的一个或多个排出管线（11），用于反应气体混合物的自热气相脱氢，其中反应器（1）的内壁具有连续的绝缘层 （13,14,15），并且其中多个催化活性区域（5）中的一个或每个从反应器外部的可达性通过一个或多个检修孔（12）来保证，或者其中多个 催化活性区域（5），每个区域包括彼此相邻堆叠的和/或一个在另一个堆叠的单块的相应填料，包括 - 设置在每个催化活性区域（5）的上游的具有固定装置的混合区域（6） 所述一个或多个馈送线路（9）彼此独立地可控制，并且每个经由相应馈线（9）馈送的一个或多个分配器（10）被构造为可以单独地构成的结构元件（24） 安装或卸载

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