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    VERFAHREN ZUR AUFREINIGUNG EINES RECYCLE-STROMES AUS EINER 1,3-BUTADIEN VERARBEITENDEN ANLAGE
    2.
    发明公开
    VERFAHREN ZUR AUFREINIGUNG EINES RECYCLE-STROMES AUS EINER 1,3-BUTADIEN VERARBEITENDEN ANLAGE 有权
    法净化循环流从一个1.3 - 丁二烯生产厂房

    公开(公告)号：EP2800733A1

    公开(公告)日：2014-11-12

    申请号：EP13700056.8

    申请日：2013-01-02

    Applicant: BASF SE

    Inventor： HEIDA, Bernd ,  HUGO, Randolf

    IPC: C07C7/08 ,  C07C11/167

    CPC classification number: C07C7/08 ,  C07C11/167

    Abstract: A process is proposed for purifying a recycle stream (1) from an installation (A) processing 1,3-butadiene, wherein - the recycle stream (1) is divided into two substreams, namely a first substream (3) which is purified in a stripping column (K1) for prepurification of the pure 1,3-butadiene feed stream (2), obtaining a first purified recycle stream (4) which co-comprises the prepurified pure 1,3-butadiene feed stream (2), and also - a second substream (5) which is purified in an extracted distillation installation by extractive distillation using a selective solvent (6), wherein the extractive distillation installation comprises - a main scrubber (K2) which is constructed as an enrichment column, and also - a gas-stripper column (K3), with the proviso that the recycle stream (1) is divided in such a manner that a quantitative stream as large as possible is apportioned to the first substream (3), maintaining the specification requirements for the sum of all streams that are fed into the installation (A) processing 1,3-butadiene, of a fraction of 1,3-butadiene of greater than or equal to 90% by weight, based on the total weight of the C
    4 hydrocarbons of the sum of all streams fed into the installation (A) processing 1,3-butadiene.

    VERFAHREN ZUR BEREITSTELLUNG EINER DAMPFFÖRMIGEN GEREINIGTEN ROH-C4-FRAKTION ALS ZUFUHRSTROM FÜR EIN EXTRAKTIONSDESTILLATIONSVERFAHREN MIT EINEM SELEKTIVEN LÖSUNGSMITTEL
    6.
    发明公开
    VERFAHREN ZUR BEREITSTELLUNG EINER DAMPFFÖRMIGEN GEREINIGTEN ROH-C4-FRAKTION ALS ZUFUHRSTROM FÜR EIN EXTRAKTIONSDESTILLATIONSVERFAHREN MIT EINEM SELEKTIVEN LÖSUNGSMITTEL 有权
    一种使用选择性溶剂具体的萃取蒸馏，与蒸汽CLEANED SHAPED ROH-C4馏分作为用电

    公开(公告)号：EP2788457A1

    公开(公告)日：2014-10-15

    申请号：EP12794723.2

    申请日：2012-12-04

    Applicant: BASF SE

    Inventor： HEIDA, Bernd ,  HUGO, Randolf

    IPC: C10G21/28 ,  C10G21/14 ,  C10L3/12 ,  B01D3/14

    CPC classification number: C10L3/12 ,  B01D3/40 ,  C10G21/14 ,  C10G21/28

    Abstract: The invention relates to a method for providing a vaporous purified crude C
    4 fraction as a feed stream for an extractive distillation process using a selective solvent, having the method steps of 1) separating the C
    3 -hydrocarbons, 2) separating the C
    4 -oligomers and -polymers as well as the C
    5+ -hydrocarbons up to the respective residual content specified above for the vaporous purified crude C
    4 fraction, and 3) evaporating the liquid crude C
    4 fraction. The method is characterized in that all the method steps 1), 2), and 3) are carried out in a single distillation column which is fed the liquid crude C
    4 fraction in the upper third of the column thereby forming a rectifying section and a stripping section and from which a head stream containing the C
    3 -hydrocarbons and a bottom stream containing the C
    4 -oligomers and -polymers as well as the C
    5+ -hydrocarbons are drawn, and the vaporous purified crude C
    4 fraction is drawn from the stripping section as a side stream.

    Abstract translation: 本发明涉及一种用于使用选择性溶剂在萃取蒸馏过程中提供的蒸气状纯化粗C4馏分作为进料流为，具有1的方法步骤）分离C3烃，2）分离所述C4-低聚物和 - 聚合物以及将C​​5 + - 烃到上述用于蒸气纯化粗C 4馏分中指定的respectivement残余含量，以及3）蒸发液体粗C4馏分。 该方法是在没有所有的方法步骤1），2）和3）在一个单一的蒸馏塔中进行的所有被馈送在塔的上部三分之一的液体粗C4馏分，从而形成一个精馏段和汽提为特征的 部和从该源头通过含有C 3烃和含有C4低聚物的塔底物流和 - 聚合物以及所述C5 + - 烃被绘制，并且蒸气纯化粗C4馏分从汽提部分作为侧引出 流。

    KOLONNE MIT TRENNWIRKSAMEN EINBAUTEN ZUR AUFTRENNUNG EINES GEMISCHES VON KOHLENWASSERSTOFFEN UND/ODER KOHLENWASSERSTOFFDERIVATEN DURCH EXTRAKTIVDESTILLATION MIT EINEM SELEKTIVEN LÖSUNGSMITTEL
    8.
    发明公开
    KOLONNE MIT TRENNWIRKSAMEN EINBAUTEN ZUR AUFTRENNUNG EINES GEMISCHES VON KOHLENWASSERSTOFFEN UND/ODER KOHLENWASSERSTOFFDERIVATEN DURCH EXTRAKTIVDESTILLATION MIT EINEM SELEKTIVEN LÖSUNGSMITTEL 审中-公开
    使用的选择性溶剂障碍通过萃取蒸馏烃类和/或烃类衍生物的混合物有效地分离分离柱

    公开(公告)号：EP3166705A1

    公开(公告)日：2017-05-17

    申请号：EP15734382.3

    申请日：2015-07-07

    Applicant: BASF SE

    Inventor： HEIDA, Bernd ,  HOFINGER, Julia ,  RENZE, Peter

    IPC: B01D3/32 ,  B01D3/40 ,  B01F5/04 ,  C07C7/08 ,  C07C7/167

    CPC classification number: C07C7/08 ,  B01D3/32 ,  B01D3/40 ,  B01F5/0415 ,  B01F5/0428 ,  B01F5/061 ,  B01F2005/0636 ,  C10G21/20 ,  C07C9/10 ,  C07C11/08

    Abstract: The invention relates to a column (K) with separative installations (E) for separating a mixture of hydrocarbons and/or hydrocarbon derivatives (1) by means of an extractive distillation using a selective solvent (2) by supplying the selective solvent (2) in the upper column region and supplying the hydrocarbons and/or hydrocarbon derivative (1) mixture to be separated below the supply of the selective solvent (2). In the column (K), the selective solvent (2) is loaded with the mixture (1) components for which the solvent has a higher affinity, and the solvent is discharged from the lower column region as a loaded selective solvent (3), whereas the mixture components for which the selective solvent (2) has a lower affinity remain in the vapor phase and are drawn as a top stream (4), which is completely or partly condensed while obtaining a condensate (5) that is drawn partly as a product stream (6) and otherwise returned to the column (K) as a return stream (7). The invention is characterized in that - a first substantially horizontal inlet pipe (R1) for supplying the selective solvent is provided in the column region above the separative installations (E), - the first substantially horizontal inlet pipe (R1) has a cross-sectional constriction up to a narrowest point (V) and expands again after the cross-sectional constriction, and - a second inlet pipe (R2) is provided which opens into the first substantially horizontal inlet pipe (R1) in the region of the narrowest point of the cross-sectional constriction (V) for supplying the return stream (7).

    Abstract translation: 本发明涉及一列（K）与分离式装置（E），用于通过供给所述选择性溶剂使用选择性（2）溶剂通过萃取蒸馏的方法烃和/或烃衍生物（1）的混合物中分离（2） 在上部塔区并供给烃类和/或烃类衍生物（1）混合物的选择性溶剂（2）的供给下面分离。 在列（K），所述选择性溶剂（2）装有该混合物（1）的组件的量，溶剂具有更高的亲和力，并且溶剂从下塔区排出作为加载选择性溶剂（3） 鉴于混合物组分的量，选择性溶剂（2）具有更低的亲和力保持在气相中和绘制作为塔顶料流（4），所有这些被完全呼叫或同时获得冷凝物部分冷凝（5）也被绘制部分是作为 作为返回流返回塔（K）的产物流（6）和以其他方式（7）。 本发明的特征在于： - 用于提供选择性溶剂的第一基本水平的入口管（R1）设置在列区域中的分离式装置（E）中， - 所述第一基本水平的入口管（R1）具有的横截面 收缩到最窄点（V）和截面收缩后再次膨胀，以及 - 提供第二入口管（R2）其中在最窄点的区域通向第一基本水平的入口管（R1） 用于供给返回料流（7）的横截面收缩（V）。

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