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    Simulated moving bed separators and methods for isolating a desired component
    32.
    发明授权
    Simulated moving bed separators and methods for isolating a desired component 有权

    公开(公告)号：US09611194B2

    公开(公告)日：2017-04-04

    申请号：US14460740

    申请日：2014-08-15

    Applicant: UOP LLC

    Inventor： Gregory F. Maher

    IPC: C07C7/13 ,  C07C7/00 ,  B01D15/18

    CPC classification number: C07C7/005 ,  B01D15/1835 ,  C07C7/13 ,  C07C15/08

    Abstract: A simulated moving bed separator and methods for isolating a desired component are provided. A method includes removing a raffinate from a raffinate bed of a simulated moving bed separator. The raffinate includes an undesired component, and the simulated moving bed separator includes a plurality of adsorbent beds circularly coupled together, a distributor, and a plurality of conduits coupling the distributor to the plurality of adsorbent beds. The adsorbent beds include the raffinate bed, a desorbent bed, and a zone 4 flush bed positioned between the raffinate bed and the desorbent bed. Desorbent is added to the desorbent bed through a desorbent conduit. The zone 4 flush conduit is flushed to the desorbent conduit, where the zone 4 flush conduit is coupled to the zone 4 flush bed.

    Xylene Separation Process and Apparatus
    36.
    发明申请
    Xylene Separation Process and Apparatus 有权
    二甲苯分离工艺及装置

    公开(公告)号：US20170036973A1

    公开(公告)日：2017-02-09

    申请号：US15262648

    申请日：2016-09-12

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： John R. Porter ,  Timothy P. Bender ,  Dana L. Pilliod

    IPC: C07C7/12 ,  B01D15/18

    CPC classification number: C07C7/12 ,  B01D15/1807 ,  B01D15/1828 ,  B01D15/1835 ,  B01D15/1842 ,  C07C15/08

    Abstract: A simulated moving bed process using dual, parallel rotary valves configured or plumbed to be operated independently in which the step times of the rotary valves are staggered. In embodiments, the second rotary valve is programmed to step about halfway through the step time of the first rotary valve. Staggering the step time of the parallel rotary valves, rather than utilizing simultaneous stepping, results in increased net composite paraxylene concentration of the extract stream, allowing for increased capacity of the simulated moving bed process and/or reduced energy consumption.

    Abstract translation: 使用双平行旋转阀的模拟移动床方法，其配置或垂直地独立操作，其中旋转阀的步进时间交错。 在实施例中，第二旋转阀被编程为在第一旋转阀的步进时间的大约一半步进。 平行旋转阀的步进时间，而不是利用同时步进，导致萃取物流的净复合对二甲苯浓度增加，允许增加模拟移动床过程的能力和/或降低的能量消耗。

    Xylene separation process
    37.
    发明授权
    Xylene separation process 有权
    二甲苯分离过程

    公开(公告)号：US09522863B2

    公开(公告)日：2016-12-20

    申请号：US14580452

    申请日：2014-12-23

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： Timothy P. Bender

    IPC: C07C7/13 ,  C07C6/12

    CPC classification number: C07C7/13 ,  C07C6/123 ,  C07C15/08

    Abstract: A process is described for separating paraxylene from a multicomponent fluid mixture of C8 aromatics, and more particularly to a process for separating paraxylene from such a fluid mixture by means of adsorption apparatus, such as moving-bed or simulated moving-bed adsorption apparatus. A process is also described for making paraxylene by making a mixture of C8 aromatics and separating paraxylene from the mixture by means of a simulated moving-bed adsorption apparatus.

    Abstract translation: 描述了用于从C8芳族化合物的多组分流体混合物中分离对二甲苯的方法，更具体地涉及通过诸如移动床或模拟移动床吸附装置的吸附装置从这种流体混合物中分离对二甲苯的方法。 还描述了通过模拟移动床吸附装置从混合物中制备C8芳族化合物和分离对二甲苯的混合物来制备对二甲苯的方法。

    Simulated moving bed separators and methods for isolating a desired component
    38.
    发明授权
    Simulated moving bed separators and methods for isolating a desired component 有权
    模拟移动床分离器和隔离所需部件的方法

    公开(公告)号：US09522862B2

    公开(公告)日：2016-12-20

    申请号：US14319548

    申请日：2014-06-30

    Applicant: UOP LLC

    Inventor： Robert Edward Sanders

    IPC: C07C7/12 ,  C07C7/13

    CPC classification number: C07C7/13 ,  C07C15/08

    Abstract: A simulated moving bed separator and methods for isolating a desired component are provided. A method includes removing an extract from an extract bed of the simulated moving bed separator, where the extract includes the desired component, and where the simulated moving bed separator includes a plurality of adsorbent beds circularly coupled together. The simulated moving bed separator also includes a distributor and a plurality of conduits fluidly coupling the distributor to the adsorbent beds. The adsorbent beds include the extract bed and a secondary flush bed downstream from the extract bed. A secondary flush conduit is flushed with a secondary flush fluid while removing extract from the extract bed, where the secondary flush conduit fluidly couples the secondary flush bed with the distributor. The flush fluid includes the extract.

    Abstract translation: 提供了一种模拟移动床分离器和用于隔离所需部件的方法。 一种方法包括从模拟移动床分离器的提取床中除去提取物，其中提取物包含所需组分，并且其中模拟移动床分离器包括圆形耦合在一起的多个吸附床。 模拟移动床分离器还包括分配器和将分配器流体地耦合到吸附剂床的多个导管。 吸附剂床包括提取床和提取床下游的二次冲洗床。 第二冲洗管道用二次冲洗流体冲洗，同时从提取床除去提取物，其中次冲洗管道将辅助冲洗床与分配器流体连接。 冲洗液包括提取物。

    Xylene separation process and apparatus
    40.
    发明授权
    Xylene separation process and apparatus 有权
    二甲苯分离工艺及装置

    公开(公告)号：US09464012B2

    公开(公告)日：2016-10-11

    申请号：US14885319

    申请日：2015-10-16

    Applicant: ExxonMobil Chemical Patents Inc.

    Inventor： John R. Porter ,  Timothy P. Bender ,  Dana L. Pilliod

    IPC: C07C7/12 ,  B01D15/18

    CPC classification number: C07C7/12 ,  B01D15/1807 ,  B01D15/1828 ,  B01D15/1835 ,  B01D15/1842 ,  C07C15/08

    Abstract: A simulated moving bed process using dual, parallel rotary valves configured or plumbed to be operated independently in which the step times of the rotary valves are staggered. In embodiments, the second rotary valve is programmed to step about halfway through the step time of the first rotary valve. Staggering the step time of the parallel rotary valves, rather than utilizing simultaneous stepping, results in increased net composite paraxylene concentration of the extract stream, allowing for increased capacity of the simulated moving bed process and/or reduced energy consumption.

    Abstract translation: 使用双平行旋转阀的模拟移动床方法，其配置或垂直地独立操作，其中旋转阀的步进时间交错。 在实施例中，第二旋转阀被编程为在第一旋转阀的步进时间的大约一半步进。 平行旋转阀的步进时间，而不是利用同时步进，导致萃取物流的净复合对二甲苯浓度增加，允许增加模拟移动床过程的能力和/或降低的能量消耗。

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