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    • 6. 发明公开
    • VERFAHREN ZUR HERSTELLUNG VON CYCLOHEXAN AUS BENZOL UND METHYLCYCLOPENTAN MIT VORGESCHALTETER BENZOLHYDRIERUNG
    • 用于生产环己烷苯和甲基环戊烷与上游苯加氢
    • EP3134376A1
    • 2017-03-01
    • EP15716549.9
    • 2015-04-20
    • BASF SE
    • HÜBNER, MichaelSCHULZ, LukasCZAJKA, PawelGOBIN, Oliver ChristianHOLUB, NicolePFEIFFER, DanielWEICKGENANNT, AndreasPORTA GARCIA, Marta
    • C07C5/10C07C5/29C07C13/18
    • C07C5/03C07C5/10C07C5/29C07C5/31C07C7/04C07C2521/04C07C2521/06C07C2521/08C07C2523/46C07C2523/745C07C2523/75C07C2523/755C07C2527/08C07C2527/11C07C2527/1213C07C2527/126C07C2527/135C07C2531/02C07C2601/14C07C13/18
    • The present invention concerns a process for preparing cyclohexane from methylcyclopentane (MCP) and benzene. In the present invention, MCP and benzene are constituents of a hydrocarbon mixture (KG1) also including dimethylpentanes (DMP), optionally cyclohexane and optionally at least one compound (low boiler) selected from non-cyclic C
      5 -C
      6 alkanes and cyclopentane. First, benzene is reacted in a hydrogenation step to give cyclohexane (present in the hydrocarbon mixture (KG2)), while MCP is isomerized to cyclohexane in the presence of a catalyst, preferably an acidic ionic liquid. After the hydrogenation but before the isomerization, the dimethylpentanes (DMP) are removed, and initially the cyclohexane present in the hydrocarbon mixture (KG2) is removed together with DMP. This pre-isomerization cyclohexane can be freed of DMP again in a downstream step of rectification and isolated and/or returned to the cyclohexane preparation process. If the hydrocarbon mixture (KG1) comprises low boilers, they can be removed between DMP removal and MCP isomerization. Following the isomerization comes the isolation of the cyclohexane, with optional recycling of unisomerized MCP and any low boilers. The hydrocarbon mixture (KG1) preferably includes cyclohexane and/or low boilers, and so low-boiler removal between DMP removal before isomerization is a preferred operation. Also preferred is an additional removal of DMP from the cyclohexane - that is, the cyclohexane fraction arising from the benzene hydrogenation and possibly forming part of the starting mixture (KG1) is isolated and hence recovered.
    • 本发明涉及一种用于从甲基环戊烷(MCP)和苯制备环己烷的方法。 在本发明的上下文中,MCP和苯是烃混合物(HM1)另外包括dimethylpentanes(DMP)的成分,可能是环己烷和无环C5-C6链烷烃和环戊烷选择可能的至少一种化合物(低沸点)。 首先,苯转化成氢化步骤以环己烷(即存在于烃混合物(HM2)),而MCP在催化剂的存在下异构化,优选的酸性离子液体,环己烷。 所述dimethylpentanes(DMP)被删除到异构化氢化,但先前的后,与初始移除存在于烃混合物(HM2)用DMP一起环己烷。 此环己烷已经存在之前的异构化可以再次从DMP在下游精馏步骤中分离和分离和/或再循环到用于制备环己烷的过程。 之间的DMP去除和MCP异构化 - 如果低沸点是存在于烃混合物(HM1) - 低沸物,任选地除去。 异构化后,环己烷是孤立的,任选低沸点的未异构化的MCP和可选的回报。 优选地,环己烷和/或低沸点是存在于烃混合物(HM1)等的低沸物分离从异构化的DMP之间去除优选进行。 这是另外优选并除去从DMP环己烷的附加传导,意思没有环己烷组分在苯加氢它产生,并且可以存在于起始混合物(HM1)是分离的,因此回收。
    • 8. 发明公开
    • PROCESS
    • 处理
    • EP3132009A1
    • 2017-02-22
    • EP15713573.2
    • 2015-03-20
    • Johnson Matthey Public Limited Company
    • ABBOTT, Peter Edward James
    • C10L3/08C10L3/10
    • C07C1/0435C07C1/04C07C1/12C07C7/14816C07C2523/46C07C2523/755C10G2/332C10K3/02C10L3/08C10L3/101C10L2290/141C07C9/04
    • A process is described for producing a methane-containing gas mixture comprising the steps of: (i) passing a first feed gas mixture comprising hydrogen and carbon dioxide through a bed of methanation catalyst to react a portion of the hydrogen with at least a portion of the carbon dioxide and form a methane-containing gas mixture containing residual hydrogen, (ii) adding an oxygen-containing gas to the methane-containing gas mixture containing residual hydrogen to form a second feed gas mixture, and (iii) passing the second feed gas mixture through a bed of an oxidation catalyst to reactthe residual hydrogen and oxygen to form a hydrogen depleted methane-containing gas mixture. The first feed gas mixture may be a synthesis gas comprising hydrogen, carbon dioxide and carbon monoxide, and may be desulphurised before the methanation step.
    • 描述了用于生产含甲烷的气体混合物的方法,其包括以下步骤:(i)将包含氢气和二氧化碳的第一进料气体混合物通过甲烷化催化剂床以使一部分氢气与至少一部分 (ii)向含有残留氢的含甲烷气体混合物中加入含氧气体以形成第二进料气体混合物,以及(iii)使第二进料 气体混合物通过氧化催化剂床以使剩余的氢和氧反应以形成贫氢的含甲烷的气体混合物。 第一进料气体混合物可以是包含氢气,二氧化碳和一氧化碳的合成气体,并且可以在甲烷化步骤之前脱硫。