METHOD FOR PRODUCING CYCLOHEXANE BY USING STARTING MATERIALS ORIGINATING FROM A STEAM CRACKING PROCESS
    4.
    发明申请
    METHOD FOR PRODUCING CYCLOHEXANE BY USING STARTING MATERIALS ORIGINATING FROM A STEAM CRACKING PROCESS 审中-公开
    用蒸汽裂解过程得到的提取物制备环己烷的方法

    公开(公告)号:WO2014060460A3

    公开(公告)日:2014-06-26

    申请号:PCT/EP2013071601

    申请日:2013-10-16

    Applicant: BASF SE

    Abstract: The invention relates to a method for producing cyclohexane by isomerizing a hydrocarbon mixture (KG1) containing methylcyclopentane (MCP) in the presence of a catalyst. The catalyst is preferably an acidic ionic liquid. A flow (S1) originating from a steam cracking process is used as a starting material. The hydrocarbon mixture (KG1) is obtained from said stream (S1) in a device for removing aromatics. The hydrocarbon mixture has a reduced aromatic content in comparison with the flow (S1). (KG1) can also be (nearly) free of aromatics. In dependence on the type and amount of the aromatics remaining in the hydrocarbon mixture (KG1), in particular if benzene is present, a hydrogenation of (KG1) additionally can be performed before the isomerization. Furthermore, additional purification steps can optionally be performed before or after the isomerization or hydrogenation in dependence on the presence of other components of (KG1). Preferably high-purity cyclohexane (in accordance with specifications) is isolated from the hydrocarbon mixture (KG2) arising during the isomerization, wherein the specifications are given, for example, by the use of the cyclohexane for the production of caprolactam known to the person skilled in the art.

    Abstract translation: 本发明涉及一种通过在催化剂存在下使含有甲基环戊烷(MCP)的烃混合物(KG1)异构化来制备环己烷的方法。 该催化剂优选为酸性离子液体。 使用的原料是来源于蒸汽裂化过程的物流(S1)。 从此流(S1),在一种用于具有降低的芳族含量相对于所述功率(S1),任选的(KG1)可以(几乎)是不含芳烃的芳烃分离而获得的烃类混合物(KG1)。 取决于残留在烃混合物(KG1)中的芳族化合物的性质和量,特别是在苯的存在下,(KG1)的氢化可以另外在异构化之前进行。 另外,取决于(KG1)的其它组分的存在,进一步的纯化步骤可以任选地在异构化或氢化之前或之后进行。 从异构化期间获得的烃混合物(KG2)优选是分离的高纯度(规格)环己烷,规格例如通过使用环己烷来制备己内酰胺以生产技术人员已知的。

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