METHOD FOR SEPARATING A MIXTURE OF HYDROCARBONS BY EXTRACTIVE DISTILLATION
    1.
    发明申请
    METHOD FOR SEPARATING A MIXTURE OF HYDROCARBONS BY EXTRACTIVE DISTILLATION 审中-公开
    受理并萃取烃类的混合物的分离

    公开(公告)号:WO2014053431A3

    公开(公告)日:2015-02-26

    申请号:PCT/EP2013070321

    申请日:2013-09-30

    Applicant: BASF SE

    CPC classification number: C07C7/08 Y02P20/582 C07C11/08 C07C9/10

    Abstract: The invention relates to a continuous method for separation of a mixture of hydrocarbons by extractive distillation having a mixture of a polar aprotic solvent and water as a selective solvent, in a system comprising an extractive distillation column and an outgas column, characterized in that the method is carried out under continuous measurement of the water content of the selective solvent via NIR spectroscopy, wherein the measured values from the continuous measurement of the water content of the selective solvent are compared to a specified target value and regulated to a value within a specified concentration range above and below the target value by addition or exfiltration of water or by addition of polar aprotic solvent.

    Abstract translation: 本发明涉及一种连续方法用于使用极性非质子溶剂和水作为选择性溶剂的混合物通过萃取蒸馏的烃的混合物,其包括萃取蒸馏塔和脱气塔的分离,在一个系统,该系统的特征在于,下的连续测量的方法 通过近红外光谱,内进行所述选择性溶剂的水含量,其中,从与预先设定的目标值进行比较的选择性溶剂中的水含量的连续测量的测量值,并通过添加或排出的水或通过加入非质子性极性溶剂的预置为值 浓度范围之上和之下的调节设定值。

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