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    LIGHT OLEFIN RECOVERY FROM PLASTIC WASTE PYROLYSIS
    21.
    发明申请
    LIGHT OLEFIN RECOVERY FROM PLASTIC WASTE PYROLYSIS 有权

    公开(公告)号：US20220195309A1

    公开(公告)日：2022-06-23

    申请号：US17595344

    申请日：2020-06-12

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Sundararajan Uppili ,  Bryan A. Patel ,  Randolph J. Smiley ,  Lawrence R. Gros ,  Anthony Go ,  Saurabh S. Maduskar ,  Melissa D. Foster ,  Philippe Laurent

    IPC: C10G1/10 ,  C10G9/36 ,  C10B49/22 ,  C10B53/07

    Abstract: Systems and methods are provided for integration of a reactor for polyolefin pyrolysis with the effluent processing train for a steam cracker. The polyolefins can correspond to, for example, polyolefins in plastic waste. Integrating a process for polyolefin pyrolysis with a steam cracker processing train can allow a mixture of polymers to be converted to monomer units while reducing or minimizing costs and/or equipment footprint. This can allow for direct conversion of polyolefins to the light olefin monomers in high yield while significantly lowering capital and energy usage due to integration with a steam cracking process train. The integration can be enabled in part by selecting feeds with appropriate mixtures of various polymer types and/or by limiting the volume of the plastic waste pyrolysis product relative to the volume from the steam cracker(s) in the steam cracking process train. By selecting plastic waste and/or other polyolefin sources with an appropriate mixture of polyolefins as the feedstock, the resulting polyolefin pyrolysis product can be separated in a steam cracking process train to produce separate fractions for various polymer grade small olefin products.

    Process for making phenol and/or cyclohexanone
    24.
    发明授权
    Process for making phenol and/or cyclohexanone 有权
    制备苯酚和/或环己酮的方法

    公开(公告)号：US09546121B2

    公开(公告)日：2017-01-17

    申请号：US15031759

    申请日：2014-10-17

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Bryan A. Patel ,  Jihad M. Dakka

    IPC: C07C45/53 ,  C07C37/08 ,  C07C407/00 ,  C07C37/72 ,  C07C7/10 ,  B01J31/02

    CPC classification number: C07C37/08 ,  B01J31/0247 ,  C07C7/10 ,  C07C37/72 ,  C07C45/53 ,  C07C407/00 ,  C07C407/003 ,  C07C2601/14 ,  C07C2601/16 ,  Y02P20/52 ,  C07C39/04 ,  C07C409/14 ,  C07C49/403 ,  C07C13/28

    Abstract: A process for making phenol and/or cyclohexanone comprises: (A) oxidizing a cyclohexylbenzene feed to obtain an oxidation product comprising cyclohexylbenzene, cyclohexyl-1-phenyl-1-hydroperoxide and phenol; (B) separating at least a portion of the oxidation product to obtain a first fraction comprising cyclohexyl-1-phenyl-1-hydroperoxide and a second fraction comprising cyclohexylbenzene and phenol; (C) removing at least a portion of the phenol from at least a portion of the second fraction to obtain a third fraction; (D) recycling at least a portion of the cyclohexylbenzene in the third fraction to the oxidizing step (A); and (E) contacting at least a portion of the cyclohexyl-1-phenyl-1-hydroperoxide in the first fraction with an acid catalyst in a cleavage reactor under cleavage conditions to obtain a cleavage product comprising phenol and cyclohexanone.

    Abstract translation: 制备苯酚和/或环己酮的方法包括：（A）氧化环己基苯进料以获得包含环己基苯，环己基-1-苯基-1-氢过氧化物和苯酚的氧化产物; （B）分离至少一部分氧化产物以获得包含环己基-1-苯基-1-氢过氧化物的第一级分和包含环己基苯和苯酚的第二级分; （C）从第二级分的至少一部分除去至少一部分苯酚以获得第三级分; （D）将第三馏分中的至少一部分环己基苯回收至氧化步骤（A）; 和（E）在裂解反应器中在裂解条件下使第一馏分中的环己基-1-苯基-1-氢过氧化物的至少一部分与酸催化剂接触，得到包含苯酚和环己酮的裂解产物。

    Process for producing phenol
    27.
    发明授权
    Process for producing phenol 有权
    苯酚生产工艺

    公开(公告)号：US09382178B2

    公开(公告)日：2016-07-05

    申请号：US14787862

    申请日：2014-04-09

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Bryan A. Patel ,  John S. Coleman

    IPC: C07C45/53 ,  C07C37/08 ,  C07C2/66 ,  C07C37/50 ,  C07C2/74 ,  C07C407/00 ,  C07C409/14

    CPC classification number: C07C37/50 ,  C07C2/74 ,  C07C37/08 ,  C07C45/53 ,  C07C407/00 ,  C07C409/14 ,  C07C2529/70 ,  C07C2601/14 ,  C07C39/04 ,  C07C49/403 ,  C07C13/28

    Abstract: In a process for producing phenol and cyclohexanone, reaction components comprising cyclohexylbenzene hydroperoxide and an acid catalyst are supplied to a cleavage reaction zone, mixed under mixing conditions effective to combine the reaction components into a reaction mixture and at least part of the cyclohexylbenzene hydroperoxide in the reaction mixture is converted under cleavage conditions to into phenol and cyclohexanone; and a cleavage effluent is recovered from the cleavage reaction zone. The cleavage and mixing conditions are controlled such that the ratio tR/tM is at least 10, where tR is the half-life of cyclohexylbenzene hydroperoxide under the cleavage conditions and tM is the time required after injection of a tracer material into the reaction mixture under the mixing conditions for at least 95% by volume of the entire reaction mixture to attain at least 95% of the volume-averaged tracer material concentration.

    Abstract translation: 在生产酚和环己酮的方法中，将包含环己基苯氢过氧化物和酸催化剂的反应组分供应至裂解反应区，在有效将反应组分混合成反应混合物和至少部分环己基苯氢过氧化物的混合条件下混合， 在裂解条件下将反应混合物转化成苯酚和环己酮; 并从裂解反应区回收裂解流出物。 控制裂解和混合条件使得tR / tM的比例至少为10，其中t R是在切割条件下环己基苯氢过氧化物的半衰期，tM是将示踪材料注入反应混合物中所需的时间 整个反应混合物的至少95体积％的混合条件达到体积平均示踪剂材料浓度的至少95％。

    Process for producing phenol
    28.
    发明授权
    Process for producing phenol 有权
    苯酚生产工艺

    公开(公告)号：US09096509B2

    公开(公告)日：2015-08-04

    申请号：US14369865

    申请日：2012-12-03

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Bryan A. Patel ,  Jihad M. Dakka

    IPC: C07C45/53 ,  C07C37/08 ,  C07C2/66 ,  C07C407/00 ,  C07C2/74

    CPC classification number: C07C407/00 ,  C07C2/74 ,  C07C37/08 ,  C07C45/53 ,  C07C2531/02 ,  C07C2601/14 ,  C07C409/14 ,  C07C39/04 ,  C07C49/403

    Abstract: In a process for producing phenol, a mixture of cyclohexylbenzene with from 10 to 90 wt % of a solvent is contacted with oxygen in the presence of a catalyst and under conditions effective to oxidize at least a portion of the cyclohexylbenzene to cyclohexylbenzene hydroperoxide. The catalyst comprises a cyclic imide having an imide group of formula (I): wherein X represents an oxygen atom, a hydroxyl group, or an acyloxy group. At least a portion of the oxygen is dissolved in the mixture and the liquid phase molar ratio of cyclohexylbenzene to oxygen dissolved in the mixture is less than or equal to 20,000:1.

    Abstract translation: 在生产酚的方法中，将环己基苯与10至90重量％的溶剂的混合物在催化剂存在下并在有效氧化至少一部分环己基苯至环己基苯氢过氧化物的条件下与氧接触。 催化剂包含具有式（I）的酰亚胺基的环状酰亚胺：其中X表示氧原子，羟基或酰氧基。 氧气的至少一部分溶解在混合物中，环己基苯与溶解在混合物中的氧的液相摩尔比小于或等于20,000:1。

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