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    • 24. 发明授权
    • Method for combined production of paraxylene and benzene with improved productivity
    • 联合生产对二甲苯和苯的方法,提高生产率
    • US08030533B2
    • 2011-10-04
    • US11908704
    • 2006-03-14
    • Gerard HotierKim Seo Il
    • Gerard HotierKim Seo Il
    • C07C4/24C07C7/12C07C7/14
    • C07C6/123C07C7/005C07C15/04C07C15/08
    • A process for the combined production of para-xylene and benzene comprises: separating a first feed, by adsorption in a simulated moving bed SMB, to produce an extract E rich in para-xylene and at least one raffinate R which is depleted in para-xylene; converting a secondary feed of toluene by selective disproportionation to produce benzene and xylenes; a) at the start of the cycle, producing a supplemental quantity of para-xylene in a crystallization unit supplied with the xylenes from the disproportionation; b) at the end of the cycle, when the adsorbant has aged: dividing the distilled extract E into a first fraction Ea and a complementary second fraction Eb; replacing the feed to the initial crystallization by the stream Ea; and recycling the xylenes from the disproportionation to the SMB. The invention enables para-xylene and benzene production to be maintained despite ageing of the SMB absorbent.
    • 组合生产对二甲苯和苯的方法包括:通过在模拟移动床SMB中的吸附分离第一种进料,以产生富含对二甲苯的萃取物E和至少一种在对二甲苯中耗尽的萃余液R, 二甲苯 通过选择性歧化来转化甲苯的二次进料以产生苯和二甲苯; a)在循环开始时,在由歧化提供二甲苯的结晶单元中产生补充量的对二甲苯; b)在循环结束时,当吸附剂老化时:将蒸馏的提取物E分成第一级分Ea和互补的第二级分Eb; 用流Ea代替原料进行初始结晶; 并将二甲苯从不成比例回收给SMB。 尽管SMB吸收剂的老化,本发明可以维持对二甲苯和苯的生产。
    • 25. 发明授权
    • Flushing apparatus in a simulated mobile bed adsorption unit comprising two fluid distribution lines, and the use thereof
    • 包括两个流体分配管线的模拟移动床吸附单元中的冲洗装置及其用途
    • US06284200B1
    • 2001-09-04
    • US08985704
    • 1997-12-05
    • Gerard Hotier
    • Gerard Hotier
    • B01D5000
    • B01D15/1835B01D15/1842
    • A simulated moving bed flushing apparatus and its use are described. The adsorber comprises a plurality of beds (10, 11) of adsorbent, each bed being connected to a distribution means (5) comprising two fluid distribution lines (2,1,) the first distribution line (2) of each distribution means being connected to at least one inlet (7) for feed and to at least one raffmate outlet (8), the other line 1 being connected to at least one solvent inlet (3) and to at least one extract outlet (4), each inlet and outlet comprising an on-off valve (7a, 8a, 3a, 4a), the first distribution line (2) comprising a flushing valve (9), and all of the flushing valves (9) relating to all of the distribution lines (2) are connected to means (100, 102) for circulating a fluid to be displaced. FIG. 1 to be published.
    • 描述了一种模拟移动式床冲洗装置及其用途。 吸附器包括多个吸附剂床(10,11),每个床连接到分配装置(5),分配装置(5)包括两个流体分配管线(2,1),每个分配装置的第一分配管线(2)连接 至少一个用于进料的入口(7)和至少一个熔体出口(8),另一条管线1连接到至少一个溶剂入口(3)和至少一个提取物出口(4),每个入口和 出口包括开关阀(7a,8a,3a,4a),第一分配管线(2)包括冲洗阀(9),以及与所有分配管线(2)相关的所有冲洗阀(9) )连接到用于使待移动的流体循环的装置(100,102)。 1发表。
    • 27. 发明授权
    • Apparatus for regulating the flow rate of at least one fluid in
simulated moving bed separation units
    • 用于调节模拟移动床分离单元中的至少一种流体的流速的装置
    • US6063285A
    • 2000-05-16
    • US318574
    • 1999-05-27
    • Gerard HotierAlbert Le CorreDominique HumeauPierre Renard
    • Gerard HotierAlbert Le CorreDominique HumeauPierre Renard
    • B01D15/00B01D15/18C07C7/12B01D15/08
    • B01D15/1842C07C7/12B01D2215/024
    • An apparatus and process for regulating the flow rate of at least one fluid or effluent circulating in a simulated moving bed comprises a plurality of beds disposed in a closed loop in at least one chromatographic column (1) and comprising at least one means for recirculating fluid and comprising at least two lines for injecting fluid at a controlled flow rate and at least two lines for withdrawing fluid, one of said withdrawal (extract or raffinate) lines being under flow rate control, the other (60) being under pressure control via at least one control valve (6), and is characterized in that said pressure controlled withdrawal line (60) comprises, in addition to the control valve, comprises at least one restriction means (201) enabling the pressure downstream of at least one of the beds to be reduced. One embodiment of the use of the invention is for separating a xylene isomer.
    • 用于调节在模拟移动床中循环的至少一种流体或流出物的流速的装置和方法包括在至少一个色谱柱(1)中设置在闭环中的多个床,并且包括至少一个用于再循环流体的装置 并且包括用于以受控流速喷射流体的至少两条线和用于抽出流体的至少两条线,所述抽出(提取物或提余液)管线之一处于流量控制之下,另一条管线(60)在压力控制下通过 至少一个控制阀(6),其特征在于,所述压力控制抽出管线(60)除了所述控制阀之外还包括至少一个限制装置(201),所述至少一个限制装置能使所述床中的至少一个床 要减少 本发明使用的一个实施方案是分离二甲苯异构体。
    • 28. 发明授权
    • Process and device for improving the purity of a product in a simulated
fluid bed
    • 用于提高模拟流化床中产品纯度的方法和装置
    • US5972224A
    • 1999-10-26
    • US42572
    • 1998-03-17
    • Gerard HotierPierre RenardAnnick PucciDidier Pavone
    • Gerard HotierPierre RenardAnnick PucciDidier Pavone
    • B01D15/18B01D15/08
    • B01D15/1842B01D15/1828B01D2215/023B01D2215/024
    • 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.i. 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.sub.i 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.
    • 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Pi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,传输线10 Pi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)被布置在旁路线L1,2的下游。 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,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。
    • 29. 发明授权
    • Chromatographic simulated mobile bed separation process with dead volume
correction using an increase in flow rate
    • 色谱模拟移动床分离过程与死体积校正使用流量增加
    • US5582736A
    • 1996-12-10
    • US494562
    • 1995-06-22
    • Gerard HotierChoua CohenNicolas CouenneJean-Michel Toussaint
    • Gerard HotierChoua CohenNicolas CouenneJean-Michel Toussaint
    • G01N30/00B01D15/08B01D15/18G01N30/02G01N30/44G01N30/88
    • B01D15/1828B01D15/40B01D2215/025
    • In a simulated mobile bed separation process, perturbations are corrected in the compositions of an extract (EA) or raffinate (RB) due to the dead volume introduced by at least one recycling pump (P) or compressor for a liquid, supercritical or gaseous mixture in a closed circuit of columns. The process is characterized in that each time an extract extraction stream (EA) or that of the raffinate (RB) passes from a position immediately anterior to a position immediately posterior to each of the dead volumes in the circuit, the flow rate of the flow rate regulated recycling pump or compressor is increased for the time which the extract or raffinate remains in the position immediately posterior to the dead volume When the extract or raffinate extraction stream passes from the immediately posterior position to the dead volume to the following position, the flow rate of the recycling pump or compressor is reduced so that the flow rate regains the value which would have been applied if the dead volume had been ignored.The invention is applicable to the separation of aromatic hydrocarbons containing 8 carbon atoms.
    • 在模拟的移动床分离过程中,由于由用于液体,超临界或气体混合物的至少一个循环泵(P)或压缩机引入的死体积,在萃取物(EA)或萃余液(RB)的组成中校正扰动 在列的闭路中。 该方法的特征在于,每次提取物萃取流(EA)或萃余液(RB)的每一次从紧邻回路中每个死体积的位置之前的位置通过时,流量的流速 提取液或提余液保留在死体积之后的位置的时间内增加了速率调节回收泵或压缩机。当提取物或萃余液萃取物流从紧邻后位置传递至死体积至下一位置时,流量 回收泵或压缩机的速率降低,使得流量恢复如果死体积被忽略的将被应用的值。 本发明适用于分离含有8个碳原子的芳烃。