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1.发明授权Process for the production of at least one isomer of xylenes that comprise an adsorption stage and an isomerization stage with an euo-structural-type catalyst 有权用于生产包含吸附阶段和异构化阶段的至少一种二甲苯异构体与二元结构型催化剂的方法公开(公告)号：US06376734B1
公开(公告)日：2002-04-23
申请号：US09598646
申请日：2000-06-22
申请人： Julia Magne-Drisch , Gérard Hotier , Alain Methivier , Jean-Francois Joly , Fabio Alario , Elisabeth Merlen
发明人： Julia Magne-Drisch , Gérard Hotier , Alain Methivier , Jean-Francois Joly , Fabio Alario , Elisabeth Merlen
IPC分类号： C07C700
CPC分类号： C07C15/08 , C07C5/2724 , C07C7/13 , C07C2521/02 , C07C2521/04 , C07C2521/06 , C07C2521/10 , C07C2521/12 , C07C2521/16 , C07C2527/167 , C07C2529/74
摘要： A process for the production of at least one isomer of xylenes comprising a simulated moving-bed adsorption (8) of a C8-aromatic feedstock (1) that delivers a paraxylene-rich fraction (9) that is optionally purified after a distillation (16) by at least one high-temperature crystallization (5) and a fraction (10) that is low in paraxylene is described. Fraction (10) is distilled and then isomerized (21) in the presence of an EUO-structural-type catalyst. The lightest hydrocarbons are removed from the isomerization effluent in a first distillation (23) then naphthenes in a second distillation (26), and distilled isomerization effluent (2) that results therefrom is recycled at least in part in adsorption (8). A mother liquor (3) that results from the crystallization stage is recycled at least in part in adsorption (8).
摘要翻译： 一种用于生产二甲苯的至少一种异构体的方法，包括C8-芳族原料（1）的模拟移动床吸附（8），其传送富含对二甲苯的级分（9），其在蒸馏后任选地进行纯化（16 ）通过至少一种低温结晶（5）和低对二甲苯的馏分（10）进行了描述。 馏分（10）蒸馏，然后在EUO结构型催化剂存在下异构化（21）。 在第一蒸馏（23）中将最轻的烃从异构化流出物中除去，然后在第二蒸馏（26）中的环烷烃，并且由此产生的蒸馏异构化流出物（2）至少部分地再循环至吸附（8）。 由结晶阶段产生的母液（3）至少部分地被再吸收（8）。
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2.发明授权Process for the production of an isomer of xylenes in three stages: separation, isomerization in the presence of a catalyst based on an EUO zeolite and transalkylation 有权在三阶段生产二甲苯异构体的方法：在基于EUO沸石和烷基转移反应的催化剂存在下进行分离，异构化公开(公告)号：US06528695B1
公开(公告)日：2003-03-04
申请号：US09598486
申请日：2000-06-22
IPC分类号： C07C1512
CPC分类号： C07C15/08 , C07C5/2724 , C07C6/126 , C07C7/13 , C07C2529/18 , C07C2529/74 , Y02P20/52 , C07C15/067
摘要： The invention relates to a process for the production of at least one isomer of xylenes, preferably paraxylene, as well as benzene, starting from a C8-aromatic fraction, whereby said process comprises a zone for separation of xylenes, a zone for isomerization of aromatic compounds with 8 carbon atoms used in the presence of a catalyst that comprises at least one EUO-structural-type zeolite that is selected from among the EU-1, TPZ-3, ZSM-50 zeolites and at least one metal of group VIII of the periodic table, and finally a transalkylation zone of C7- and C9-aromatic compounds. The invention makes it possible to produce paraxylene and benzene with a high yield, starting from a C8-aromatic fraction that comprises a large amount of ethylbenzene with improved performance levels of the isomerization stage and a good conversion of ethylbenzene in the transalkylation stage.
摘要翻译： 本发明涉及从C8-芳族馏分开始生产二甲苯，优选对二甲苯以及苯的至少一种异构体的方法，其中所述方法包括用于分离二甲苯的区域，芳族异构化区 在催化剂存在下使用的具有8个碳原子的化合物，其包含至少一种选自EU-1，TPZ-3，ZSM-50沸石和至少一种VIII族金属的EUO结构型沸石 周期表，最后是C7-和C9-芳族化合物的烷基转移区。 本发明使得可以从包含大量乙苯的C8芳族馏分开始以高产率制备对二甲苯和苯，具有改进的异构化阶段的性能水平和乙烷在烷基转移反应阶段中的良好转化率。
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3.发明授权Production of a xylene isomer in three stages: separation, isomerization with a catalyst with an EUO zeolite base and transalkylation with recycling of C10-aromatic compounds 有权分三个阶段生产二甲苯异构体：用具有EUO沸石碱的催化剂进行分离，异构化，并用C10-芳族化合物的再循环进行烷基转移公开(公告)号：US06512154B1
公开(公告)日：2003-01-28
申请号：US09598651
申请日：2000-06-22
IPC分类号： C07C522
CPC分类号： C07C15/08 , C07C5/2724 , C07C6/126 , C07C2529/18 , C07C2529/74 , C07C15/067
摘要： A process for the production of at least one xylene isomer, paraxylene, metaxylene or orthoxylene from an aromatic feedstock that has 7 to 10 carbon atoms per molecule. The process comprises a stage for transalkylation of C7- and C9-aromatic compounds, a stage for separation of xylenes and a stage for isomerization of xylenes. The isomerization catalyst used in the process comprises at least one EUO zeolite composition whose crystals are grouped in aggregates that have a grain size with a value of Dv,90 less than or equal to 500 microns and at least one element of group VIII.
摘要翻译： 从每分子具有7至10个碳原子的芳族原料生产至少一种二甲苯异构体，对二甲苯，间二甲苯或邻二甲苯的方法。 该方法包括C7-和C9-芳族化合物的烷基转移反应阶段，用于分离二甲苯的步骤和用于异构化二甲苯的步骤。 在该方法中使用的异构化催化剂包含至少一种EUO沸石组合物，其结晶以具有Dv值，90小于或等于500微米的晶粒尺寸和至少一种VIII族元素的聚集体分组。
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4.发明授权公开(公告)号：US06369287B1
公开(公告)日：2002-04-09
申请号：US09597468
申请日：2000-06-19
IPC分类号： C07C700
CPC分类号： C07C15/08 , C07C5/2754 , C07C15/073 , C07C2523/42 , C07C2529/74
摘要： A process for co-production of paraxylene and ethylbenzene comprises: (A) an adsorption stage of a feedstock of xylenes and ethylbenzene in a simulated moving bed that produces an extract of pure paraxylene and an ethylbenzene-rich raffinate; (B) an adsorption stage in a simulated moving bed, of raffinate from which desorbent has been removed that supplies an essentially pure ethylbenzene extract and an orthoxylene and metaxylene raffinate that contains desorbent; (C) a recover stage for the desorbent; (D) an isomerization stage for the orthoxylene and metaxylene raffinate in the presence of a catalyst that comprises an EUO-type zeolite; and (E) a stage for recycling the isomerate that is produced with adsorption.
摘要翻译： 共同生产对二甲苯和乙苯的方法包括：（A）在模拟移动床中的二甲苯和乙苯的原料的吸附阶段，其产生纯对二甲苯和富含乙苯的萃余液的提取物; （B）在模拟移动床中的萃余液中的吸附阶段，其中已经从其中除去了解吸剂，提供基本上纯的乙苯提取物和含有解吸附剂的邻二甲苯和间二甲苯萃余液; （C）解吸剂的回收阶段; （D）在包含EUO型沸石的催化剂存在下，邻二甲苯和间二甲苯残液的异构化阶段; 和（E）用于回收利用吸附产生的异构体的阶段。
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5.发明授权公开(公告)号：US06841714B2
公开(公告)日：2005-01-11
申请号：US10247830
申请日：2002-09-20
申请人： Philibert Leflaive , Luc Wolff , Gérard Hotier , Alain Methivier
发明人： Philibert Leflaive , Luc Wolff , Gérard Hotier , Alain Methivier
摘要： A process for co-production of paraxylene, metaxylene and/or orthoxylene from a hydrocarbon feedstock (1) that comprises [1] a separation stage of the feedstock in a simulated moving bed in a chromatographic column (9) that contains a number of beds of an adsorbent, interconnected in a loop, is described, whereby said column comprises an injection (3) of the feedstock, a draw-off (10) of an extract that consists of paraxylene and desorbent, an intermediate fraction (11) (extract or raffinate) that contains ethylbenzene, and a raffinate (12) that contains a mixture of metaxylene and orthoxylene that is virtually free of ethylbenzene and paraxylene and [2] a crystallization stage (27) of the metaxylene and/or orthoxylene fraction. Upstream from the adsorption zone and/or upstream from the crystallization zone, it is possible to distill the entering mixture to produce an orthoxylene-enriched fraction at the bottom and a metaxylene-enriched fraction at the top.
摘要翻译： 一种从烃原料（1）共同生产对二甲苯，间二甲苯和/或邻二甲苯的方法，其包括[1]在色谱柱（9）中的模拟移动床中的原料的分离阶段，其包含多个床 描述了以循环相互连接的吸附剂，其中所述柱包括原料的注入物（3），由对二甲苯和解吸剂组成的萃取物的萃取物（10），中间馏分（11） 或萃余液）和含有实际上不含乙苯和对二甲苯的间二甲苯和邻二甲苯混合物的萃余液（12），[2]间二甲苯和/或邻二甲苯馏分的结晶阶段（27）。 从吸附区上游和/或结晶区上游，可以蒸馏进入的混合物，在底部产生富含邻二甲苯的馏分，并在顶部产生富含甲炔的馏分。
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6.发明授权Process for co-producing para-xylene and metaxylene, comprising two separation steps 有权共同生产对二甲苯和间二甲苯的方法，包括两个分离步骤公开(公告)号：US06838588B2
公开(公告)日：2005-01-04
申请号：US10108392
申请日：2002-03-29
摘要： A process is described for co-producing metaxylene and paraxylene from a hydrocarbon feed comprising two separation steps. The first step of the process is a counter-current simulated moving bed system in a chromatographic column containing at least five zones, comprising injecting the feed and injecting a desorbent and delivering an extract, a raffinate and an intermediate raffinate either continuously or discontinuously. The extract is distilled to obtain a paraxylene with a purity of at least 99.7%. The raffinate, which is richer in metaxylene, is distilled to extract the desorbent and injected into a counter-current simulated moving bed continuously delivering an extract and a raffinate. One of these two streams is enriched in metaxylene. The most metaxylene-rich stream is distilled to obtain metaxylene with a purity of more than 99%.
摘要翻译： 描述了从包含两个分离步骤的烃进料共同生产间二甲苯和对二甲苯的方法。 该方法的第一步是在含有至少五个区域的色谱柱中的逆流模拟移动床系统，包括注射进料并注入解吸剂并连续地或不连续地递送提取物，萃余液和中间萃余液。 蒸馏提取物，得到纯度至少为99.7％的对二甲苯。 富含中间二甲苯的萃余液被蒸馏以提取解吸剂并注入到逆流模拟移动床中，连续输送提取物和萃余液。 这两条河中的一条富含间二甲苯。 蒸馏出最富含中间二甲烷的料流，得到纯度大于99％的间二甲苯。
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7.发明授权Coproduction process for para-xylene and ortho-xylene comprising two separation steps 失效对二甲苯和邻二甲苯的共同生产方法包括两个分离步骤公开(公告)号：US06828470B2
公开(公告)日：2004-12-07
申请号：US10321724
申请日：2002-12-18
申请人： Philibert Leflaive , Luc Wolff , Alain Methivier , Gérard Hotier
发明人： Philibert Leflaive , Luc Wolff , Alain Methivier , Gérard Hotier
IPC分类号： C07C712
摘要： A coproduction process for ortho-xylene and para-xylene starting with a batch of hydrocarbons comprises a simulated counter-current fluidized bed system in a chromatographic column (6) containing at least five zones, comprising injection (1) of the batch and injection (2) of desorption agent and delivering an extract (3), a refined product (5), and an intermediate refined product (4). Refined product (5), richer in ortho-xylene than the intermediate refined product, is distilled (9) to extract desorption agent (15) and is injection, according to the second step of the process, into a simulated counter-current fluidized bed system (17) delivering an extract (18) and a refined product (19) continuously.
摘要翻译： 从一批烃开始的邻二甲苯和对二甲苯的共生产方法包括在色谱柱（6）中的模拟逆流流化床系统，其包含至少五个区域，包括批料和注射（1）的注射（1） 2）的解吸剂和递送提取物（3），精制产物（5）和中间精制产物（4）。 精制产品（5），比中间精制产物富含邻二甲苯，蒸馏（9）提取脱附剂（15），并根据该方法的第二步将注射成模拟逆流流化床 系统（17）连续递送提取物（18）和精制产品（19）。
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公开(公告)号：US07473368B2
公开(公告)日：2009-01-06
申请号：US11136729
申请日：2005-05-25
申请人： Gérard Hotier
发明人： Gérard Hotier
IPC分类号： B01D15/00
CPC分类号： C07C7/12 , B01D15/1871 , B01D53/0423 , B01D2259/40005 , B01D2259/4146 , Y10T436/11 , C07C15/08
摘要： A simulated moving bed (SMB) separation device comprises at least one column, beds of adsorbent arranged in this column, trays Pi with a chamber Ci for distribution and extraction of fluids, a multi-way rotary valve for the distribution of the fluids feeding or leaving said trays, and junction lines Li between this valve and said trays. The SMB device also comprises a plurality of bypass lines Li,i+1 between adjacent lines, these bypasses being outside the multi-way rotary valve and situated in proximity to this valve, for the circulation of rinsing liquids with a small or zero concentration gradient. The invention makes it possible to use all types of distribution and extraction trays and all types of adsorbent loading, while preserving a high level of product purity. Application of the separation devices is in particular to the separation of paraxylene or metaxylene from a C8 aromatic charge.
摘要翻译： 模拟移动床（SMB）分离装置包括至少一个柱，在该塔中排列的吸附剂床，具有用于分配和提取流体的腔室Ci的托盘Pi，用于分配流体的多通旋转阀或 在该阀和所述托盘之间留下所述托盘和接合线Li。 SMB设备还包括在相邻线路之间的多个旁路管线Li，i + 1，这些旁路在多路旋转阀外部并且位于该阀附近，用于循环具有小或零浓度梯度的冲洗液体 。 本发明使得可以使用所有类型的分配和提取塔板和所有类型的吸附剂负载，同时保持高水平的产品纯度。 分离装置的应用特别是从C8芳族电荷分离对二甲苯或间二甲苯。
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公开(公告)号：US06969495B1
公开(公告)日：2005-11-29
申请号：US09590380
申请日：2000-06-09
申请人： Gérard Hotier , Pierre Renard , Xavier Decoodt
发明人： Gérard Hotier , Pierre Renard , Xavier Decoodt
CPC分类号： B01J8/0492 , C07C7/00 , C07C15/067
摘要： For use in a separation column, a mat element or a beam element has at least: an upper part 2; at least one distributor-collector part (3) having one or more secondary orifices (7i) and at least one main orifice (6), whereby the passage sections of orifices (8) and (7i) are different; and a lower part (4). The distributor-collector part or parts (3) arranged between the upper part (2) and the lower part (4). A sealing element (5a) arranged between the distributor-collector part (3) and the upper part (2), and a sealing element (5b) arranged between the distributor-collector part (3) and the lower part (4). A separation element (8) arranged at distributor-collector part (3), thus delimiting two spaces (3a, 3b) for circulation of fluids.
摘要翻译： 为了在分离柱中使用，垫元件或梁元件至少具有：上部2; 至少一个分配器 - 收集器部分（3）具有一个或多个次级孔（7i）和至少一个主孔（6），由此孔口（8）和（7i）的通道部分不同; 和下部（4）。 布置在上部（2）和下部（4）之间的分配器 - 收集器部分（3）。 布置在分配器 - 收集器部分（3）和上部部分（2）之间的密封元件（5a）和布置在分配器 - 收集器部分（3）和下部部分（4）之间的密封元件（5b） 。 布置在分配器 - 收集器部分（3）处的分离元件（8），从而限定用于流体循环的两个空间（3a，3b）。
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公开(公告)号：US06537451B1
公开(公告)日：2003-03-25
申请号：US09590120
申请日：2000-06-09
申请人： Gérard Hotier
发明人： Gérard Hotier
IPC分类号： B01D1508
CPC分类号： B01D15/1842 , B01D2215/023 , B01D2259/40005 , F16K11/0743 , G01N2030/201 , Y10T137/86501 , Y10T137/86533 , Y10T137/86863
摘要： Disclosed is a rotary valve that makes it possible to link several groups of hoses referenced group G1, group G2, and group G3. The valve includes a stator (40) that is provided with means (E, F, R, S) for circulating fluid or fluids of group 1, means (45, 46) for passing at least two fluids F1, F2 that belong to group G3, and a rotor (47) that is equipped with means (9) for passing fluids of group G3 and also means (50) that make possible the linking either of fluids of G1 with group G3 or fluids of group G3 with G3.
摘要翻译： 公开了一种旋转阀，其使得可以链接几组参考组G1，组G2和组G3的软管。 该阀包括定子（40），该定子设有用于循环流体或组1的流体的装置（E，F，R，S），用于使至少两个属于组的流体F1，F2的装置（45,46） G3和具有用于使组G3的流体通过的装置（9）的转子（47），以及使G1与G3的流体或G3的流体与G3连接的装置（50）的装置（50）。
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