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    A Process for Revamping a Plant for the Production of Cyclohexanone
    2.
    发明申请
    A Process for Revamping a Plant for the Production of Cyclohexanone 审中-公开

    公开(公告)号：US20170368473A1

    公开(公告)日：2017-12-28

    申请号：US15535795

    申请日：2015-12-15

    Applicant: CAP III B.V.

    Inventor： Johan Thomas Tinge ,  Iris Verschuren

    IPC: B01D3/14 ,  C07C45/82 ,  C07C35/08 ,  C07C27/28 ,  C07C49/403 ,  C07C45/00 ,  C07C2601/14

    CPC classification number: B01D3/009 ,  B01D3/10 ,  B01D3/12 ,  B01D3/143 ,  C07C27/28 ,  C07C35/08 ,  C07C45/006 ,  C07C45/82 ,  C07C49/403 ,  C07C2601/14 ,  Y02P70/34

    Abstract: A process for the construction of a second chemical plant, which second chemical plant is suitable for the separation of cyclohexanone from a second mixture, which second mixture comprises reaction products from the hydrogenation of phenol, said process comprising: a) providing a first chemical plant, which first chemical plant is suitable for the separation of cyclohexanone from a first mixture, which first mixture comprises reaction products from the oxidation of cyclohexane, and which first plant comprises: i) a distillation column (C) suitable for distilling overhead cyclohexane; ii) a distillation column suitable for distilling overhead cyclohexanone; iii) a cyclohexane oxidation unit (A) suitable for the oxidation of cyclohexane; and iv) a heat recovery unit (B) suitable for the recovery of heat from off-gas from the cyclohexane oxidation unit suitable for the oxidation of cyclohexane; b) disabling in said first chemical plant, said distillation column (C) suitable for distilling overhead cyclohexane, said cyclohexane oxidation unit (A) and said heat recovery unit (B), wherein the second chemical plant comprises a distillation column (F) suitable for distilling overhead cyclohexanone reused from the first chemical plant, wherein each of the first chemical plant and the second chemical plant comprise a distillation column (E) suitable for distilling overhead components having a lower boiling point than cyclohexanone; a distillation column (G) suitable for distilling overhead a mixture comprising cyclohexanol and cyclohexanone in a wt.:wt. ratio of at least 4:1; and a cyclohexanol dehydrogenation unit (H) suitable for the dehydrogenation of cyclohexanol to cyclohexanone.

    Process for the production of a mixture comprising cyclohexanone and cyclohexanol from phenol
    4.
    发明授权
    Process for the production of a mixture comprising cyclohexanone and cyclohexanol from phenol 有权
    从苯酚生产包含环己酮和环己醇的混合物的方法

    公开(公告)号：US09388107B2

    公开(公告)日：2016-07-12

    申请号：US14408614

    申请日：2013-06-27

    Applicant: CAP III B.V.

    Inventor： Wilhelmus Rudolf Maria Martens ,  Robert Jan De Korte ,  Iris Verschuren ,  Corinne Daguenet ,  Johan Thomas Tinge ,  Roeland Wilhelmus Theodorus Maria Brands

    IPC: C07C45/00 ,  C07C29/00 ,  C07C51/00 ,  C07C29/20 ,  C07C35/08 ,  C07C49/603 ,  C07D223/10

    CPC classification number: C07C45/006 ,  C07C29/20 ,  C07C35/08 ,  C07C49/603 ,  C07C51/00 ,  C07C2601/14 ,  C07D223/10 ,  C07C49/403

    Abstract: The present invention provides a process for continuously preparing a mixture of cyclohexanone and cyclohexanol comprising, a) hydrogenating phenol with gaseous hydrogen, in the presence of platinum or palladium, in a hydrogenation reactor, to produce a hydrogenation product stream comprising cyclohexanone, cyclohexanol, phenol and hydrogen; b) cooling the hydrogenation product stream to a temperature such that the fraction of phenol by mass in a first gas phase is lower than the fraction of phenol by mass in a first liquid phase; c) separating the first gas phase from the first liquid phase; d) returning at least part of the first gas phase to the hydrogenation reactor; e) heating the first liquid phase; f) purifying the first liquid phase by distillation; characterized in that heat is transferred from the hydrogenation product stream in step b) to another part of the process by means of in-process heat exchange; a mixture of cyclohexanone and cyclohexanol obtained by the process; and a chemical plant suitable for continuously preparing mixture of cyclohexanone and cyclohexanol according to the process.

    Abstract translation: 本发明提供一种连续制备环己酮和环己醇的混合物的方法，其包括：a）在氢化反应器中，在铂或钯存在下，用气态氢气氢化苯酚，生成包含环己酮，环己醇，苯酚 和氢; b）将氢化产物流冷却至使第一气相中的质量分数低于第一液相中苯酚质量分数的温度; c）将第一气相与第一液相分离; d）将至少部分第一气相返回到氢化反应器; e）加热第一液相; f）通过蒸馏纯化第一液相; 其特征在于，通过在工艺中的热交换将热量从步骤b）中的氢化产物流转移到另一部分工艺; 通过该方法获得的环己酮和环己醇的混合物; 以及适用于连续制备环己酮和环己醇的混合物的化学植物。

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