PROCESS FOR PRODUCING HIGH PURITY META-XYLENE, COMPRISING SIMULATED MOVING BED ADSORPTION AND CRYSTALLIZATION
    21.
    发明申请
    PROCESS FOR PRODUCING HIGH PURITY META-XYLENE, COMPRISING SIMULATED MOVING BED ADSORPTION AND CRYSTALLIZATION 有权
    生产高纯度金属微球的方法,包括模拟移动床吸附和结晶

    公开(公告)号:US20080269535A1

    公开(公告)日:2008-10-30

    申请号:US12109378

    申请日:2008-04-25

    IPC分类号: C07C5/22

    CPC分类号: C07C7/13 C07C7/14 C07C15/08

    摘要: The invention concerns a process for producing high purity meta-xylene, comprising a step for separation by simulated moving bed adsorption starting from an aromatic C8 feed delivering a fraction which is rich in meta-xylene and a fraction which is depleted in meta-xylene, and a step for crystallization of the meta-xylene rich fraction. The purity of the meta-xylene produced is at least 99.5%.

    摘要翻译: 本发明涉及一种生产高纯度间二甲苯的方法,包括通过模拟移动床吸附分离的步骤,起始于芳烃C8进料,其中馏分富含间二甲苯和部分间二甲苯, 以及富二甲苯富集级分的结晶步骤。 产生的间二甲苯的纯度至少为99.5%。

    Simulated moving bed separation device
    22.
    发明授权
    Simulated moving bed separation device 有权
    模拟移动床分离装置

    公开(公告)号:US08722955B2

    公开(公告)日:2014-05-13

    申请号:US12988077

    申请日:2009-03-24

    IPC分类号: B01D15/18 C07C7/12

    CPC分类号: B01D15/1842

    摘要: A device (SMB) for separation by simulated moving bed adsorption comprises a plurality of elementary adsorption zones Zi in series operating in a closed loop, and at least one singular adsorption zone with a dead volume which is greater than the adsorption zones Zi, the solid adsorbant of said singular adsorption zone having a granulometry which is lower than that of the solid adsorbant of the ordinary adsorption zones.

    摘要翻译: 用于通过模拟移动床吸附分离的装置(SMB)包括串联操作在闭环中的多个基本吸附区Zi和至少一个具有大于吸附区Z i的死体积的单一吸附区,固体 所述奇异吸附区的吸附剂具有比常规吸附区的固体吸附剂低的粒度测定法。

    Process and device for simulated moving bed separation with a reduced number of large diameter valves and a reduced line volume
    23.
    发明授权
    Process and device for simulated moving bed separation with a reduced number of large diameter valves and a reduced line volume 有权
    用于模拟移动床分离的过程和装置,减少了大直径阀门的数量和减少的管线体积

    公开(公告)号:US07569141B2

    公开(公告)日:2009-08-04

    申请号:US12044306

    申请日:2008-03-07

    IPC分类号: B01D15/08

    摘要: The invention concerns a simulated moving bed adsorption separation device comprising a limited number of large diameter valves. According to the invention, the device comprises a column with a plurality of sectors Sk with 2 superimposed plates Pi with a single distribution network, each sector Sk comprising an external principal bypass line Lk connected to each plate Pi of Sk via a large diameter plate valve Vi and an external secondary bypass line Mk comprising a small diameter valve VMk connected to the adjacent sector Sk−1. Each line Lk comprises a flow rate limitation means and is connected to each fluid network via a single large diameter valve. Further, the connectors of lines Lk onto the column are offset by at most 20° inside Sk to limit the volume of lines Lk, and are offset by a mean angle in the range 70° to 110° between two neighbouring sectors Sk and Sk+1 so as not to weaken the column mechanically. The plates preferably comprise panels DMEi,j with parallel segments the direction of which varies from plate to plate or per group of 2 plates.The invention also concerns a separation process using said device.FIG. 2 to be published.

    摘要翻译: 本发明涉及包含有限数量的大直径阀的模拟移动床吸附分离装置。 根据本发明,该装置包括具有多个扇区Sk的列,具有具有单个分配网络的2个叠加板Pi,每个扇区Sk包括通过大直径板阀连接到每个Sk板的Pi的外部主旁路管线Lk Vi和外部辅助旁路管线Mk,其包括连接到相邻扇区Sk-1的小直径阀VMk。 每条线路Lk包括流量限制装置,并通过单个大直径阀连接到每个流体网络。 此外,线路Lk到列上的连接器在Sk内部偏移至多20°以限制线路Lk的体积,并且被两个相邻扇区之间的平均角度偏移在70°至110°之间Sk和Sk + 1,以免机械地削弱色谱柱。 板优选地包括具有平行段的面板DMEi,j,其平行段的方向从板到板或每组2个板变化。 本发明还涉及使用所述装置的分离方法。 2 发布。

    Process and device for simulated moving bed separation with a reduced number of valves and lines
    24.
    发明申请
    Process and device for simulated moving bed separation with a reduced number of valves and lines 有权
    用于模拟移动床分离的过程和装置,阀和线路数量减少

    公开(公告)号:US20080237132A1

    公开(公告)日:2008-10-02

    申请号:US12073697

    申请日:2008-03-07

    IPC分类号: B01D15/08 B01D21/30 B01D21/34

    摘要: The invention concerns a simulated moving bed adsorption separation device comprising a limited number of valves. According to the invention, the device comprises a column with a plurality of sectors Sk with 2 superimposed plates Pi with a single distribution network, each sector Sk comprising an external principal bypass line Lk connected to each plate Pi of Sk via a plate valve Vi. Each line Lk comprises a flow limitation means and is connected to each of the fluid networks via a single valve.Further, the connectors of lines Lk onto the column are offset by at most 20° inside Sk to limit the volume of lines Lk, and are offset by a mean angle in the range 70° to 110° between two neighbouring sectors Sk and Sk+1 so as not to weaken the column mechanically. The plates preferably comprise panels DMEi,j with parallel segments the direction of which varies from plate to plate or per group of 2 plates.The invention also concerns a separation process using said device, in particular to separate para-xylene or meta-xylene from an aromatic C8 cut.

    摘要翻译: 本发明涉及包括有限数量的阀的模拟移动床吸附分离装置。 根据本发明,该装置包括具有多个扇区Sk的列,其具有带有单个分配网络的2个叠加板Pi,每个扇区Sk包括通过板阀V连接到Sk的每个板Pi的外部主旁路管线Lk, SUB> i 。 每条线路Lk包括流量限制装置,并通过单个阀连接到每个流体网络。 此外,线路Lk到列上的连接器在Sk内部偏移至多20°以限制线路Lk的体积,并且被两个相邻扇区之间的平均角度偏移在70°至110°之间Sk和Sk + 1,以免机械地削弱色谱柱。 板优选地包括具有平行段的面板DMEi,j,其平行段的方向从板到板或每组2个板变化。 本发明还涉及使用所述装置的分离方法,特别是将芳族C8馏分的对二甲苯或间二甲苯分离出来。

    Process and device for simulated moving bed seperation with a reduced number of valves
    25.
    发明申请
    Process and device for simulated moving bed seperation with a reduced number of valves 有权
    用于模拟移动床分离的过程和装置,阀门数量减少

    公开(公告)号:US20080041788A1

    公开(公告)日:2008-02-21

    申请号:US11890526

    申请日:2007-08-07

    IPC分类号: B01D15/10 B01D53/04 B01J8/04

    摘要: The invention concerns a simulated moving bed (SMB) separation device comprising a column, beds Ai of adsorbent separated by plates Pi with a single distribution and extraction network for fluids, in particular feed F, desorbant D, raffinate R and extract E, and a plurality of two-way valves for distribution of said fluids, said valves being limited in number compared with the prior art. According to the invention, the column is divided into a plurality of sectors Sk with 2 or 3 superimposed plates, each sector Sk comprising an external bypass line Lk connected to each plate Pi of Sk via a connector comprising a plate valve Vi. Each line Lk comprises a controlled means for limiting its internal flow, and is connected to each of the fluid networks F, D, R, E via a single line comprising a single controlled two-way isolation valve to supply for sequential supply or withdrawal of the corresponding fluid F, D, R or E towards or from the sector Sk under consideration. The invention also concerns a separation process using said device or the use of said device for the separation of para-xylene or meta-xylene from an aromatic C8 cut.

    摘要翻译: 本发明涉及一种包括柱的模拟移动床(SMB)分离装置,具有通过单个分配的板Pi和用于流体的提取网络,特别是进料F,脱附剂D,萃余液R和萃取物E分离的吸附剂的吸附剂Ai,以及 用于分配所述流体的多个二通阀,与现有技术相比,所述阀的数量受到限制。 根据本发明,列被分成具有2或3个重叠板的多个扇区Sk,每个扇区Sk包括通过包括板阀Vi的连接器连接到Sk的每个板Pi的外部旁路管线Lk。 每条线路Lk包括用于限制其内部流动的受控装置,并且经由包括单个受控双向隔离阀的单个管线连接到每个流体网络F,D,R,E,以供供应连续供应或撤出 相应的液体F,D,R或E朝向或来自所考虑的部分Sk。 本发明还涉及使用所述装置的分离方法或所述装置用于从芳族C8馏分分离对二甲苯或间二甲苯的分离方法。

    Method for Producing Paraxylene Comprising an Adsortion Step and Two Isomerization Steps
    26.
    发明申请
    Method for Producing Paraxylene Comprising an Adsortion Step and Two Isomerization Steps 有权
    产生对二甲苯的方法,包括一个引发步骤和两个异构化步骤

    公开(公告)号:US20080262282A1

    公开(公告)日:2008-10-23

    申请号:US10580345

    申请日:2004-11-23

    IPC分类号: C07C15/08

    摘要: A process for producing para-xylene from a hydrocarbon feed is described in which an adsorption column operating as a simulated moving bed with at least five zones delivers an extract, a 2-raffinate and an intermediate raffinate.The extract is distilled and the distillate is optionally re-crystallized to recover para-xylene with a purity of at least 99.7%. The 2-raffmate is distilled then isomerized in a reactor preferably operating in the liquid phase and at a low temperature. The intermediate raffinate with an enriched ethylbenzene content is distilled then isomerized in the vapour phase.

    摘要翻译: 描述了从烃进料生产对二甲苯的方法,其中作为具有至少五个区域的模拟移动床操作的吸附塔递送萃取物,2-萃余液和中间萃余液。 将提取物蒸馏,任选地将馏出物重结晶以回收对数二甲苯,纯度至少为99.7%。 将蒸馏的2-己糖醇在反应器中蒸馏异构化,优选在液相和低温下操作。 将富含乙苯含量的中间残液蒸馏,然后在汽相中异构化。

    PROCESS AND DEVICE FOR SIMULATED MOVING BED SEPARATION WITH A REDUCED NUMBER OF LARGE DIAMETER VALVES AND A REDUCED LINE VOLUME
    27.
    发明申请
    PROCESS AND DEVICE FOR SIMULATED MOVING BED SEPARATION WITH A REDUCED NUMBER OF LARGE DIAMETER VALVES AND A REDUCED LINE VOLUME 有权
    用于模拟移动床分离的过程和装置,具有减少的大直径阀和减少的线体积

    公开(公告)号:US20080217232A1

    公开(公告)日:2008-09-11

    申请号:US12044306

    申请日:2008-03-07

    IPC分类号: B01D15/08

    摘要: The invention concerns a simulated moving bed adsorption separation device comprising a limited number of large diameter valves. According to the invention, the device comprises a column with a plurality of sectors Sk with 2 superimposed plates Pi with a single distribution network, each sector Sk comprising an external principal bypass line Lk connected to each plate Pi of Sk via a large diameter plate valve Vi and an external secondary bypass line Mk comprising a small diameter valve VMk connected to the adjacent sector Sk−1. Each line Lk comprises a flow rate limitation means and is connected to each fluid network via a single large diameter valve. Further, the connectors of lines Lk onto the column are offset by at most 20° inside Sk to limit the volume of lines Lk, and are offset by a mean angle in the range 70° to 110° between two neighbouring sectors Sk and Sk+1 so as not to weaken the column mechanically. The plates preferably comprise panels DMEi,j with parallel segments the direction of which varies from plate to plate or per group of 2 plates.The invention also concerns a separation process using said device.

    摘要翻译: 本发明涉及包含有限数量的大直径阀的模拟移动床吸附分离装置。 根据本发明,该装置包括具有多个扇区Sk的列,具有具有单个分配网络的2个叠加板Pi,每个扇区Sk包括通过大直径板阀连接到每个Sk板的Pi的外部主旁路管线Lk Vi和外部辅助旁路管线Mk,其包括连接到相邻扇区Sk-1的小直径阀VMk。 每条线路Lk包括流量限制装置,并通过单个大直径阀连接到每个流体网络。 此外,线路Lk到列上的连接器在Sk内部偏移至多20°以限制线路Lk的体积,并且被两个相邻扇区之间的平均角度偏移在70°至110°之间Sk和Sk + 1,以免机械地削弱色谱柱。 板优选地包括具有平行段的面板DMEi,j,其平行段的方向从板到板或每组2个板变化。 本发明还涉及使用所述装置的分离方法。

    Process and device for simulated moving bed separation with a reduced number of large diameter valves
    28.
    发明申请
    Process and device for simulated moving bed separation with a reduced number of large diameter valves 有权
    具有减少数量的大直径阀门的模拟移动床分离的过程和装置

    公开(公告)号:US20080121586A1

    公开(公告)日:2008-05-29

    申请号:US11907625

    申请日:2007-10-15

    IPC分类号: B01D15/08

    摘要: The invention concerns a simulated moving bed (SMB) separation device and process comprising a column, beds Ai of adsorbent separated by plates Pi with a single distribution and extraction network for fluids, in particular feed F, desorbant D, raffinate R and extract E, and a plurality of two-way valves for distribution of said fluids, said valves being limited in number and in particular with dimensions that are smaller than in the prior art. According to the invention, the column is divided into a plurality of sectors Sk with 2 superimposed plates, each sector Sk comprising an external principal bypass line Lk connected to each plate Pi of Sk via a large diameter plate valve Vi and an external secondary bypass line Mk comprising a small diameter valve VMk connected to the adjacent sector Sk−1. Each line Lk comprises a flow limitation means, and is connected to each of the fluid networks F, D, R, E via a single large diameter valve for sequential supply or withdrawal of the corresponding fluid F, D, R or E to or from the sector Sk under consideration.

    摘要翻译: 本发明涉及一种模拟移动床(SMB)分离装置和方法,该装置包括一列,通过单独的分配和提取网络由板分离的吸附剂分离的吸附剂床 流体,特别是进料F,脱硫剂D,萃余液R和萃取物E,以及用于分配所述流体的多个二通阀,所述阀的数量受到限制,特别是尺寸小于现有技术中的尺寸。 根据本发明,列被分成具有2个叠加板的多个扇区S N,每个扇区S N包括外部主旁路线L k 通过大直径平板阀V I和外部次级旁通管线M'连接到S< S>的每个板P i i / 其包括连接到相邻扇区S k-1的小直径阀V M k N N。 每条线路包括流量限制装置,并且通过单个大直径阀连接到每个流体网络F,D,R,E,以顺序地供应或取出相应的流体F, D,R或E到或来自所考虑的部门Sk。

    SIMULATED COUNTERCURRENT CHROMATOGRAPHIC SEPARATION PROCESS AND DEVICE WITH LOW PRESSURE DROP AND HIGH NUMBER OF ZONES
    29.
    发明申请
    SIMULATED COUNTERCURRENT CHROMATOGRAPHIC SEPARATION PROCESS AND DEVICE WITH LOW PRESSURE DROP AND HIGH NUMBER OF ZONES 有权
    模拟的逆流色谱分离方法和低压降和高数字区的装置

    公开(公告)号:US20140148633A1

    公开(公告)日:2014-05-29

    申请号:US14125317

    申请日:2012-04-26

    IPC分类号: C07C7/12

    摘要: A simulated moving bed separation process is characterized in that the feed and desorbant injection streams are each divided into N streams (N being a whole number strictly greater than 1) injected respectively at N distinct feed injection points and at N distinct desorbant injection points, and in that the extract and raffinate withdrawal points are also each divided into N streams each withdrawn from N distinct withdrawal points, the device being constituted by 4×N chromatographic zones.

    摘要翻译: 模拟移动床分离过程的特征在于,分别在N个不同的进料喷射点和N个不同的脱盐喷射点处分别注入进料和解吸剂注入流分别注入N个流(N为严格大于1的整数) 因为提取物和萃余液提取点也分别分为N个流,每个流从N个不同的取出点中取出,该装置由4×N色谱区构成。