Process and device for simulated moving bed separation with a modulated by-pass fluid flow
    1.
    发明授权
    Process and device for simulated moving bed separation with a modulated by-pass fluid flow 有权
    具有调制旁路流体流动的模拟移动床分离的过程和装置

    公开(公告)号:US08123952B2

    公开(公告)日:2012-02-28

    申请号:US13059773

    申请日:2009-07-29

    IPC分类号: B01D15/08

    摘要: A process for separating a feed F by simulated moving bed adsorption in a SMB device comprises at least one zone 1 for desorption of the compounds produced in the extract, a zone 2 for desorption of the compounds produced in the raffinate, a zone 3 for adsorption of the compounds produced in the extract, a zone 4 located between the raffinate withdrawal and the desorbant supply, the device comprising external by-pass lines Li/i+1 directly connecting two successive plates Pi and Pi+1;in which the degree of opening of means for restricting the flushing flow rate of the by-pass lines Li/i+1 are sequentially modified such that: 1) in an operational zone where there is at least one closed by-pass line, a super-synchronicity of the flushing flow rate is established in all of the by-pass lines which are not closed belonging to the zone under consideration, said super-synchronicity being defined by the following formula: S=a+b(nf/nt) in which the constant a is a constant in the range −5 to 5 and b is a constant in the range 40 to 100; 2) if there is no closed by-pass line in the zone under consideration (in other words if all of the by-pass lines of the zone are open), then a flow is established in all of the flushing lines of said zone which corresponds to the synchronicity plus or minus 8%.

    摘要翻译: 通过SMB装置中的模拟移动床吸附分离进料F的方法包括至少一个用于解吸萃取物中生成的化合物的区1,用于解吸萃余液中生成的化合物的区2,用于吸附的区3 在提取物中产生的化合物,位于萃余液提取和解吸剂供应之间的区域4,该装置包括直接连接两个连续板Pi和Pi + 1的外部旁路管线Li / i + 1; 其中顺序修改限制旁路线Li / i + 1的冲洗流量的装置的打开程度,使得:1)在存在至少一个封闭旁路线的操作区域中, 在所考虑的区域内的所有未闭合的旁路线中建立冲洗流速的超同步性,所述超同步性由下式定义:S = a + b(nf / nt) 其中常数a为-5至5范围内的常数,b为40至100范围内的常数; 2)如果在所考虑的区域内没有闭路旁路线(换句话说,如果该区域的所有旁路线路都是打开的),则在所述区域的所有冲洗线路中建立流动, 对应于同步加或减8%。

    PROCESS AND APPARATUS FOR SIMULATED MOVING BED SEPARATION COMPRISING BYPASS LINES IN EVERY OTHER BED AND WITH A MODULATED BYPASS FLUID FLOW RATE
    2.
    发明申请
    PROCESS AND APPARATUS FOR SIMULATED MOVING BED SEPARATION COMPRISING BYPASS LINES IN EVERY OTHER BED AND WITH A MODULATED BYPASS FLUID FLOW RATE 有权
    用于模拟移动床分离的过程和装置,包括在任何其他床和旁路流体流量速率下的旁路线

    公开(公告)号:US20100258505A1

    公开(公告)日:2010-10-14

    申请号:US12757101

    申请日:2010-04-09

    IPC分类号: B01D15/02

    摘要: A process for separating a feed F by simulated moving bed adsorption in a SMB device is described, the device comprising external bypass lines Li/i+1 which directly connect two successive plates Pi, Pi+1, the index i being either even or (exclusive of the foregoing) odd, along the whole length of the column, in order to flush said plates, in which each of the bypass lines Li/i+1 comprises automated means for regulating the flow rate in the bypass lines, the degree of opening of said regulating means being defined by the following three rules: a) establishing a flow rate corresponding to an oversynchronicity in the range 15% to 30% in all of the open bypass lines of zone 1; b) establishing a flow rate corresponding to the synchronicity to within plus or minus 8% in all of the open bypass lines of zones 2 and 3; c) establishing a flow rate corresponding to an oversynchronicity in the range 20% to 40% in all of the open bypass lines of zone 4.

    摘要翻译: 描述了一种通过SMB器件中的模拟移动床吸附分离进料F的方法,该装置包括直接连接两个连续的板Pi,Pi + 1的外部旁路管线Li / i + 1,索引i为偶数或( 排除上述情况)奇数,为了冲洗所述板,其中每个旁路管线Li / i + 1包括用于调节旁路管线中的流量的自动装置,其程度 所述调节装置的打开由以下三个规则定义:a)在区域1的所有开放旁路管线中建立对应于15%至30%范围内的超同步性的流量; b)在区域2和3的所有开放旁路管线中建立对应于同步性在±8%以内的流量; c)在区域4的所有开启旁路管线中建立对应于超时间差在20%至40%范围内的流量。

    Process and device for separation in a simulated moving bed with a bypass fluid flow rate that is not regulated automatically
    3.
    发明授权
    Process and device for separation in a simulated moving bed with a bypass fluid flow rate that is not regulated automatically 有权
    具有不受自动调节的旁路流体流量的模拟移动床中的分离过程和装置

    公开(公告)号:US08049055B2

    公开(公告)日:2011-11-01

    申请号:US12543091

    申请日:2009-08-18

    IPC分类号: C07C7/12

    摘要: Process for separation of a feedstock F by adsorption in a simulated moving bed in an SMB device that comprises a zone 1 for desorption of compounds produced by extraction, a zone 2 for desorption of compounds produced with a raffinate, a zone 3 for adsorption of compounds produced by extraction, and a zone 4 that is located between the draw-off of the raffinate and the supply of the desorbent,whereby the device comprises external bypass lines Li/i+1 directly joining two successive plates Pi, Pi+, that are equipped with non-automated means for adjusting flow rate and closing means, in which the degree of opening of the restriction means of the scavenging flow rate of the bypass lines Li/i+1 is adjusted so as to obtain the best performance of the SMB.

    摘要翻译: 在SMB装置的模拟移动床中通过吸附分离原料F的方法,其包括用于解吸由萃取物生产的化合物的区域1,用萃余液生产的化合物解吸区域2,用于吸附化合物的区域3 通过提取产生的区域4和位于萃余液的抽出物和解吸剂的供应之间的区域4,由此该装置包括直接连接两个连续的板Pi,Pi +的外部旁路管线Li / i + 1,其配备 用于调节旁路管线Li / i + 1的清除流量限制装置的开度的调节流量和关闭装置的非自动化装置,以获得SMB的最佳性能。

    PROCESS AND DEVICE FOR SIMULATED MOVING BED SEPARATION WITH A MODULATED BY-PASS FLUID FLOW
    4.
    发明申请
    PROCESS AND DEVICE FOR SIMULATED MOVING BED SEPARATION WITH A MODULATED BY-PASS FLUID FLOW 有权
    模拟移动床分离与调制旁路流体流动的过程和装置

    公开(公告)号:US20110201865A1

    公开(公告)日:2011-08-18

    申请号:US13059773

    申请日:2009-07-29

    IPC分类号: C07C7/12 B01D53/08

    摘要: A process for separating a feed F by simulated moving bed adsorption in a SMB device comprises at least one zone 1 for desorption of the compounds produced in the extract, a zone 2 for desorption of the compounds produced in the raffinate, a zone 3 for adsorption of the compounds produced in the extract, a zone 4 located between the raffinate withdrawal and the desorbant supply, the device comprising external by-pass lines Li/i+1 directly connecting two successive plates Pi and Pi+1;in which the degree of opening of means for restricting the flushing flow rate of the by-pass lines Li/i+1 are sequentially modified such that: 1) in an operational zone where there is at least one closed by-pass line, a super-synchronicity of the flushing flow rate is established in all of the by-pass lines which are not closed belonging to the zone under consideration, said super-synchronicity being defined by the following formula: S=a+b(nf/nt) in which the constant a is a constant in the range −5 to 5 and b is a constant in the range 40 to 100; 2) if there is no closed by-pass line in the zone under consideration (in other words if all of the by-pass lines of the zone are open), then a flow is established in all of the flushing lines of said zone which corresponds to the synchronicity plus or minus 8%.

    摘要翻译: 通过SMB装置中的模拟移动床吸附分离进料F的方法包括至少一个用于解吸萃取物中生成的化合物的区域1,用于解吸萃余液中生成的化合物的区域2,用于吸附的区域3 在提取物中产生的化合物,位于萃余液提取和解吸剂供应之间的区域4,该装置包括直接连接两个连续板Pi和Pi + 1的外部旁路管线Li / i + 1; 其中顺序修改限制旁路线Li / i + 1的冲洗流量的装置的打开程度,使得:1)在存在至少一个封闭旁路线的操作区域中, 在所考虑的区域内的所有未闭合的旁路线中建立冲洗流速的超同步性,所述超同步性由下式定义:S = a + b(nf / nt) 其中常数a为-5至5范围内的常数,b为40至100范围内的常数; 2)如果在所考虑的区域内没有闭路旁路线(换句话说,如果该区域的所有旁路线路都是打开的),则在所述区域的所有冲洗线路中建立流动, 对应于同步加或减8%。

    Device for simulated moving bed separation
    5.
    发明授权
    Device for simulated moving bed separation 有权
    模拟移动床分离装置

    公开(公告)号:US08821732B2

    公开(公告)日:2014-09-02

    申请号:US12809858

    申请日:2008-12-01

    IPC分类号: B01D15/08 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 zones Zi in series operating in a closed loop, each of said zones comprising, between two successive fluid injection or extraction points, a unique bed Li of adsorbant solid with volume VAi and a non-selective free volume Vi, in which the majority of the zones are ordinary elementary zones each having an identical volume VA of the same adsorbant S, and a substantially identical non-selective free volume equal to V;the device also comprises at least one particular elementary zone Z0, termed the particular elementary zone, comprising a non-selective free volume V0 which is greater than V, and a unique bed L0 of adsorbant S0 with volume VA0 which is less than VA, S0 having a volume adsorption capacity C0 which is greater than that, C, of S, such that the overall adsorption capacity C0×VA0 of Z0 is closer to the overall adsorption capacity C×VA of each of the ordinary elementary zones than the overall adsorption capacity of Z0 calculated as if the adsorbant solid of bed L0 of Z0 were not the solid S0 but the solid S.

    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区域Zi,每个所述区域在两个连续的流体注入或提取点之间包括吸附剂固体的独特的床 体积VAi和非选择性自由体积Vi,其中大部分区域是各自具有相同吸附剂S的相同体积VA的普通基本区域,以及等于V的基本相同的非选择性自由体积; 装置还包括称为特定基本区域的至少一个特定基本区域Z0,其包括大于V的非选择性自由体积V0,以及体积VA0小于VA的吸附剂S0的独特床层L0,S0 具有大于S的体积吸附容量C 0,使得Z0的总吸附容量C0×VA0更接近每个常规基本区域的总吸附容量C×VA比总体吸附容量 的Z0计算,好像Z0的床L0的吸附固体不是固体S0而是固体S.

    Improved Device for Simulated Moving Bed Separation
    9.
    发明申请
    Improved Device for Simulated Moving Bed Separation 有权
    改进的模拟移动床分离装置

    公开(公告)号:US20110166406A1

    公开(公告)日:2011-07-07

    申请号:US12809858

    申请日:2008-12-01

    IPC分类号: C07C7/12 B01D15/18

    CPC分类号: B01D15/1842

    摘要: A device (SMB) for separation by simulated moving bed adsorption comprises a plurality of elementary zones Zi in series operating in a closed loop, each of said zones comprising, between two successive fluid injection or extraction points, a unique bed Li of adsorbant solid with volume VAi and a non-selective free volume Vi, in which the majority of the zones are ordinary elementary zones each having an identical volume VA of the same adsorbant S, and a substantially identical non-selective free volume equal to V;the device also comprises at least one particular elementary zone Z0, termed the particular elementary zone, comprising a non-selective free volume V0 which is greater than V, and a unique bed L0 of adsorbant S0 with volume VA0 which is less than VA, S0 having a volume adsorption capacity C0 which is greater than that, C, of S, such that the overall adsorption capacity C0×VA0 of Z0 is closer to the overall adsorption capacity C×VA of each of the ordinary elementary zones than the overall adsorption capacity of Z0 calculated as if the adsorbant solid of bed L0 of Z0 were not the solid S0 but the solid S.

    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区域Zi,每个所述区域在两个连续的流体注入或提取点之间包括吸附剂固体的独特的床 体积VAi和非选择性自由体积Vi,其中大部分区域是各自具有相同吸附剂S的相同体积VA的普通基本区域,以及等于V的基本相同的非选择性自由体积; 装置还包括称为特定基本区域的至少一个特定基本区域Z0,其包括大于V的非选择性自由体积V0,以及体积VA0小于VA的吸附剂S0的独特床层L0,S0 具有大于S的体积吸附容量C 0,使得Z0的总吸附容量C0×VA0更接近每个常规基本区域的总吸附容量C×VA比总体吸附容量 的Z0计算,好像Z0的床L0的吸附固体不是固体S0而是固体S.

    Process and device for improved separation of paraxylene in a simulated moving bed
    10.
    发明授权
    Process and device for improved separation of paraxylene in a simulated moving bed 有权
    用于改进模拟移动床中对二甲苯分离的方法和装置

    公开(公告)号:US07759534B2

    公开(公告)日:2010-07-20

    申请号:US12181771

    申请日:2008-07-29

    IPC分类号: C07C7/12

    摘要: Process for separating paraxylene with a purity that is at least equal to 99.5% by weight from an aromatic feedstock F in a single adsorption stage in a simulated moving bed (SMB), comprising different numbers of beds, allocated to a zone 1 between the supply of the desorbent D and the draw-off of the extract E; a zone 2 between the draw-off of the extract E and the supply of the feedstock F; a zone 3 between the supply of the feedstock and the draw-off of the raffinate R; a zone 4 between the draw-off of the raffinate R and the supply of the desorbent D, wherein an SMB of 12 adsorbent beds has bed configuration (2, 5, 3, 2), an SMB of 15 adsorbent beds has bed configuration (3, 6, 4 , 2), or an SMB of 19 adsorbent beds has bed configuration (4, 7, 6, 2), wherein the desorbent in this latter case is paradiethylbenzene.

    摘要翻译: 在模拟移动床(SMB)中在单个吸附阶段中从芳香原料F分离至少等于99.5重量%的纯度的对二甲苯的方法,包括不同数量的床,分配给供应的区域1 的脱附剂D和萃取物E的排出物; 提取物E的抽出和原料F的供给之间的区域2; 在原料供应和萃余液R的排出之间的区域3; 在萃余液R的抽出和解吸剂D的供应之间的区域4,其中12个吸附床的SMB具有床构型(2,5,3,2),15个吸附床的SMB具有床构型 3,6,4,2),或19个吸附剂床的SMB具有床构型(4,7,6,2),其中在后一种情况下的解吸剂是对二甲基苯。