KOLONNE MIT TRENNWIRKSAMEN EINBAUTEN ZUR AUFTRENNUNG EINES GEMISCHES VON KOHLENWASSERSTOFFEN UND/ODER KOHLENWASSERSTOFFDERIVATEN DURCH EXTRAKTIVDESTILLATION MIT EINEM SELEKTIVEN LÖSUNGSMITTEL
    2.
    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

    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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