Simulated moving bed separation device
    21.
    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。

    DEVICE FOR DISTRIBUTING FLUIDS IN A SIMULATED MOVING BED COLUMN WITH A LIMITED DEGREE OF IMMERSION WITHIN THE GRANULAR BED
    22.
    发明申请
    DEVICE FOR DISTRIBUTING FLUIDS IN A SIMULATED MOVING BED COLUMN WITH A LIMITED DEGREE OF IMMERSION WITHIN THE GRANULAR BED 有权
    在模拟的移动板柱中分配流体的装置,其中有一个在颗粒床中的浸没有限度

    公开(公告)号:US20110303602A1

    公开(公告)日:2011-12-15

    申请号:US13154874

    申请日:2011-06-07

    IPC分类号: B01D24/00

    摘要: The present invention describes a device for the distribution of fluids in a multi-stage column operating in simulated moving bed (SMB) mode comprising, in the direction of flow of the principal fluid, a distribution system (6) for auxiliary fluids, and a distributor plate (10) supported by stiffening elements (7) located below said plate (10), said device being interposed between two successive beds of granular solid (2) denoted the upstream and downstream bed, the distribution system and the stiffening elements being immersed in the upstream and downstream granular beds to a slight extent with an upper limit for the degree of immersion.

    摘要翻译: 本发明描述了一种用于在以模拟移动床(SMB)模式操作的多级塔中分配流体的装置,其包括在主流体的流动方向上用于辅助流体的分配系统(6) 分配器板(10)由位于所述板(10)下方的加强元件(7)支撑,所述装置插入在表示为上游和下游床的两个连续的颗粒状固体床(2)之间,分配系统和加强元件被浸没 在上游和下游颗粒床中的微小程度具有浸渍程度的上限。

    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。

    Process for co-production of metaxylene and paraxylene
    26.
    发明授权
    Process for co-production of metaxylene and paraxylene 有权
    共生产间二甲苯和对二甲苯的方法

    公开(公告)号:US06696616B2

    公开(公告)日:2004-02-24

    申请号:US09842262

    申请日:2001-04-26

    IPC分类号: C07C712

    CPC分类号: C07C7/005 C07C7/12 C07C15/08

    摘要: For co-production of metaxylene and paraxylene from a hydrocarbon feedstock in a simulated moving bed in a chromatographic column (1) that contains a number of beds 1, 2,3, 4 . . . of an adsorbent, interconnected in a loop, the column comprises an injection of the feedstock, a draw-off (14) of a first raffinate, a draw-off (17) of a second raffinate that comprises metaxylene, an injection of desorbent and a draw-off of an extract that delivers paraxylene. The injection positions and the draw-off position of the extract are offset periodically by one bed in the direction of flow of the main flux that circulates in the column. First raffinate (14) that comprises desorbent, orthoxylene, metaxylene and ethylbenzene is drawn off continuously or intermittently, and second raffinate (17) R2 that comprises orthoxylene and metaxylene is drawn off intermittently. The second raffinate is distilled in such a way as to recover orthoxylene and metaxylene separately with at least 99% purity and with an improved yield. The resultant xylenes are suitable for the production of isophthalic acid and terephthalic acid

    摘要翻译: 在含有多个床1,2,3,4的色谱柱(1)中的模拟移动床中从烃原料共同生产间二甲苯和对二甲苯。 。 。 的一个吸附剂,在一个回路中相互连接,该柱包括原料的注入,第一萃余液的抽出物(14),包含间二甲苯的第二萃余液的抽出物(17),脱附剂的注入和 提取物提取对二甲苯的抽出物。 提取物的注射位置和排出位置沿着在柱中循环的主通量的流动方向周期性地偏移一个床。 包含解吸剂,邻二甲苯,间二甲苯和乙苯的第一萃余液(14)被连续地或间歇地排出,并且间歇地抽出包含邻二甲苯和间二甲苯的第二萃余液(17)R2。 蒸馏第二个萃余液,以至少99%纯度和提高的收率分别回收邻二甲苯和间二甲苯。 所得二甲苯适用于生产间苯二甲酸和对苯二甲酸

    Device for improving the purity of a product in a simulated fluid bed
    27.
    发明授权
    Device for improving the purity of a product in a simulated fluid bed 有权
    用于提高模拟流化床中产品纯度的装置

    公开(公告)号:US6110364A

    公开(公告)日:2000-08-29

    申请号:US377645

    申请日:1999-08-19

    IPC分类号: B01D15/18 B01D15/08

    摘要: The device comprises at least one column 1 that is filled with a number of beds A.sub.n having an adsorbent that are separated by a fluid distributor plate P.sub.1. Each plate is divided into a number of sectors P.sub.10 and P.sub.11, and each sector comprises at least one fluid distribution chamber 13 that is pierced with openings and a circulation space 8 in the vicinity of the openings. The chambers of the plate are connected to a line 10 for transfer to the outside. With respect to the chambers on a plate, transfer line 10 P, is connected to another transfer line 20 relative to chambers 23 on another plate (P.sub.i+1 or P.sub.i+2) that is arranged downstream by a bypass line L.sub.1,2. The latter comprises means 14, 15, 16 for monitoring and adjustment of the flow of fluid that circulates there, such that the distribution chambers are flushed by a fluid which has approximately the same composition as that of the fluid that circulates through circulation space 8 at each of the chambers.

    摘要翻译: 该装置包括至少一个填充有多个床的柱1,其具有由流体分配器板P1分离的吸附剂。 每个板被分成多个扇区P10和P11,并且每个扇区包括至少一个在开口附近被开口的流体分配室13和循环空间8。 板的腔室连接到管线10以转移到外部。 相对于板上的室,传输管线10P相对于另一个板(Pi + 1或Pi + 2)上的腔室23连接到另一个传输线20,该另一个板(Pi + 1或Pi + 2)被旁路管线L1,2设置在下游。 后者包括用于监测和调节在那里循环的流体流动的装置14,15,16,使得分配室被流体冲洗,该流体具有与通过循环空间8循环的流体大致相同的组成 每个房间。

    Production of para-xylene from an effluent from paraselective toluene
disproportionation using a crystallization process combined with
simulated moving bed adsorption
    28.
    发明授权
    Production of para-xylene from an effluent from paraselective toluene disproportionation using a crystallization process combined with simulated moving bed adsorption 有权
    使用与模拟移动床吸附结合的结晶过程从副反应性甲苯歧化的流出物生产对二甲苯

    公开(公告)号:US6060634A

    公开(公告)日:2000-05-09

    申请号:US132771

    申请日:1998-08-12

    CPC分类号: C07C15/08 C07C7/005 C07C7/14

    摘要: Para-xylene is produced from a paraselective toluene disproportionation reactor, effluent (3) is distilled to eliminate toluene and benzene in at least 2 distillation columns (C1), (C2), and the xylenes (8) are crystallized at least once (10) at between +10.degree. C. and -30.degree. C. The separated mother liquor (14) is adsorbed on a zeolitic sieve in the presence of toluene in a simulated moving bed (15). This latter produces a raffinate (16) containing toluene which is depleted in para-xylene which is distilled in a distillation column (C4), and an extract which is enriched in para-xylene and contains toluene, which is recycled to columns (C1, C2). The para-xylene crystals are purified by washing with toluene and distillation or by partial melting (30) followed by washing with molten high purity para-xylene.

    摘要翻译: 对二甲苯由副反应性甲苯歧化反应器生产,蒸馏出流出物(3),以在至少2个蒸馏塔(C1),(C2)中除去甲苯和苯,二甲苯(8)至少结晶一次(10 )在+10℃和-30℃之间。在模拟移动床(15)中,分离的母液(14)在甲苯存在下吸附在沸石筛上。 后者产生含有在蒸馏塔(C4)中蒸馏的对二甲苯贫的甲苯的萃余液(16),富含对二甲苯并含有甲苯的萃取液再循环到塔(C1, C2)。 通过用甲苯洗涤或通过部分熔融(30)洗涤然后用熔融的高纯度对二甲苯洗涤来对对 - 二甲苯晶体进行纯化。

    Method for regulating a process for the separation of isomers of
aromatic hydrocarbons having from 8 to 10 carbon atoms
    30.
    发明授权
    Method for regulating a process for the separation of isomers of aromatic hydrocarbons having from 8 to 10 carbon atoms 失效
    用于调节具有8至10个碳原子的芳族烃异构体分离方法的方法

    公开(公告)号:US5569808A

    公开(公告)日:1996-10-29

    申请号:US268174

    申请日:1994-06-29

    CPC分类号: C07C7/12 C07C7/04 C07C7/14

    摘要: A monochromatic light signal of a wavelength of between 400 and 1300 nanometers is simultaneously passed by a source 1, a beam splitter 2 and optical fibers 3, 3a to at least two points of a zone 9 for the separation of a mixture of isomers and aromatic hydrocarbons having from 8 to 10 carbons atoms. A polychromatic signal is recovered corresponding to the Raman effect between 400 and 3500 cm.sup.-1 by optical receiving fibers 5, 5a connected to sensors 4 at the locations of said points. The chemical composition of the mixture is determined from the Raman spectra obtained by a spectrometer 6. The analysis sequence is repeated, the profiles with respect to the concentration of the isomers in the mixture are reconstituted and by comparison with reference concentration profiles, action is taken on at least on operational variable 11, 12 of the separation process. Application of this process to the regulation of simulated mobile beds, a distillation operation or a crystallization process for obtaining paraxylene or orthoxylene are also provided.

    摘要翻译: 波长在400和1300纳米之间的单色光信号同时通过源1,分束器2和光纤3,3a到达区9的至少两个点,以分离异构体和芳香族混合物 具有8至10个碳原子的烃。 通过在所述点的位置处连接到传感器4的光接收光纤5,5a,对应于400和3500cm -1之间的拉曼效应来恢复多色信号。 混合物的化学组成由通过光谱仪6获得的拉曼光谱确定。重复分析序列,重新组合关于混合物中异构体浓度的分布,并通过与参考浓度分布进行比较,起作用 至少在分离过程的操作变量11,12上。 还提供了该方法对模拟移动床的调节,蒸馏操作或用于获得对二甲苯或邻二甲苯的结晶方法的应用。