公开(公告)号：US20140224742A1

公开(公告)日：2014-08-14

申请号：US14131955

申请日：2012-07-16

申请人： Dehua Wang ,  Zhuo Yu ,  Huiguo Wang ,  Jianfeng Ma ,  Wei Wu

发明人： Dehua Wang ,  Zhuo Yu ,  Huiguo Wang ,  Jianfeng Ma ,  Wei Wu

IPC分类号： B01D15/18

CPC分类号： B01D15/1835 ,  B01D15/1842 ,  C07C7/13 ,  C07C15/08

摘要： The present invention relates to a process for simulated moving bed (SMB) adsorption and separation with a reduced number of control valves, comprising separating the feedstocks comprising isomers by SMB adsorption, said SMB comprising m beds of adsorbent, each of which is equipped with grids, each of the grids being equipped with the materials charging and discharging pipeline of the bed, the materials charged into and discharged from SMB at least comprising adsorption feedstocks, desorbent, extract, raffinate and the flushing liquids charged from different beds, wherein the to extract is enriched with the target product; there are at least two streams of said flushing liquid selected from any one of the adsorption feedstock, desorbent, extract and raffinate; there are altogether n streams of materials charged to and discharged from the SMB, wherein there are s types of materials having the same composition and flow direction; p sets of on-off valves are used to control n streams of materials is charged to and discharged from the beds of adsorbent, wherein at least one group of materials composed of two streams of materials having the composition and flow direction is controlled by one set of valves, with s≦p

摘要翻译： 本发明涉及一种具有减少数量的控制阀的模拟移动床（SMB）吸附和分离方法，包括通过SMB吸附分离包含异构体的原料，所述SMB包括多个吸附剂床，每个床装有栅格 每个网格配备有床的材料充放电管线，至少包含吸附原料，解吸剂，提取物，提余液和从不同床装入的冲洗液体的SMB中排出的材料，其中提取 富含目标产品; 从吸附原料，解吸剂，萃取液和萃余液中的任一种中选出至少两股所述冲洗液; 总共有N条物料流充入和排出SMB，其中有类型的材料具有相同的组成和流动方向; p组开关阀用于控制n个物料流从吸附剂床排出并排出，其中由具有组成和流动方向的两股材料组成的至少一组材料由一组控制 阀门，s＆nlE; p

公开(公告)号：US09926243B2

公开(公告)日：2018-03-27

申请号：US14234807

申请日：2012-07-16

申请人： Dehua Wang ,  Zhuo Yu ,  Huiguo Wang ,  Jianfeng Ma

发明人： Dehua Wang ,  Zhuo Yu ,  Huiguo Wang ,  Jianfeng Ma

IPC分类号： B01D15/02 ,  B01D15/18 ,  C07C7/12 ,  C07C7/13

CPC分类号： C07C7/12 ,  B01D15/02 ,  B01D15/1835 ,  C07C7/13 ,  C07C15/08

摘要： The present invention relates to a process for separating isomers by simulated moving bed (SMB) adsorption, comprising separating the raw materials comprising isomers by SMB adsorption, said SMB comprising many adsorption beds each of which is equipped with grids, each of the grids being equipped with the feedstock inlet and outlet pipeline of the bed, the feedstock charged into and discharged from SMB at least comprising feedstocks, desorbent, extract, and raffinate, the extract being enriched with the target product, characterized in that the extract is used as a flushing liquid and respectively charged to first or second bed at the upstream of the feedstock charging position and to one of second to fourth beds at the downstream of the extract withdrawing position. Such process is used for separation of C8 aromatic isomers by adsorption, and can improve the capacity of the device while effectively increasing the purity of the target product separated by adsorption.

公开(公告)号：US20140155674A1

公开(公告)日：2014-06-05

申请号：US14234807

申请日：2012-07-16

申请人： Dehua Wang ,  Zhuo Yu ,  Huiguo Wang ,  Jiangfeng Ma

发明人： Dehua Wang ,  Zhuo Yu ,  Huiguo Wang ,  Jiangfeng Ma

IPC分类号： C07C7/12 ,  B01D15/02

CPC分类号： C07C7/12 ,  B01D15/02 ,  B01D15/1835 ,  C07C7/13 ,  C07C15/08

摘要： The present invention relates to a process for separating isomers by simulated moving bed (SMB) adsorption, comprising separating the raw materials comprising isomers by SMB adsorption, said SMB comprising many adsorption beds each of which is equipped with grids, each of the grids being equipped with the feedstock inlet and outlet pipeline of the bed, the feedstock charged into and discharged from SMB at least comprising feedstocks, desorbent, extract, and raffinate, the extract being enriched with the target product, characterized in that the extract is used as a flushing liquid and respectively charged to first or second bed at the upstream of the feedstock charging position and to one of second to fourth beds at the downstream of the extract withdrawing position. Such process is used for separation of C8 aromatic isomers by adsorption, and can improve the capacity of the device while effectively increasing the purity of the target product separated by adsorption.

摘要翻译： 本发明涉及通过模拟移动床（SMB）吸附分离异构体的方法，包括通过SMB吸附分离包含异构体的原料，所述SMB包括多个吸附床，每个吸附床配备有格栅，每个网格装备有 与床的原料入口和出口管线相连，原料至少包含原料，解吸剂，提取物和萃余液，并从SMB中排出，该提取物富含目标产物，其特征在于该提取物用作冲洗 液体并分别装入在原料装料位置的上游的第一床或第二床，并在提取物抽出位置的下游分别装入第二至第四床中的一个。 这种方法用于通过吸附分离C8芳族异构体，并且可以提高装置的容量，同时有效提高通过吸附分离的目标产物的纯度。

公开(公告)号：US08791039B2

公开(公告)日：2014-07-29

申请号：US12865267

申请日：2009-01-24

申请人： Huiguo Wang ,  Jianfeng Ma ,  Dehua Wang ,  Zhuo Yu

发明人： Huiguo Wang ,  Jianfeng Ma ,  Dehua Wang ,  Zhuo Yu

IPC分类号： B01J29/06 ,  B01J20/00

CPC分类号： B01J20/183 ,  B01J20/186 ,  C07C7/13 ,  Y02P20/52 ,  C07C15/08

摘要： An agglomerated zeolite adsorbent which comprises 95-99.5 mass % of X zeolite and 0.5-5.0 mass % of binder, wherein the exchangeable cationic sites of said X zeolite are occupied by Group IIA metal and/or K, the total pore volume of said adsorbent is no less than 0.26 mL/g as measured by mercury porosimetry, the volume of pores with pore diameters from 100 to 500 nm is at least 60% based on the total pore volume. During shaping, a pore-forming agent is added to this adsorbent, and then the adsorbent is alkali treated for in-situ crystallization, followed by ion exchange. Said adsorbent has high adsorption capacity, fast mass transfer rate and good mechanical strength. Said adsorbent is suitable for liquid phase adsorptive separation of para-xylene from C8 aromatic hydrocarbons and is also suitable for adsorptive separation of other alkyl aromatic hydrocarbons isomers.

摘要翻译： 一种凝聚沸石吸附剂，其包含95-99.5质量％的X沸石和0.5-5.0质量％的粘合剂，其中所述X沸石的可交换的阳离子位点被IIA族金属和/或K占据，所述吸附剂的总孔体积 通过水银孔率法测定的不小于0.26mL / g，孔径为100-500nm的孔的体积基于总孔体积至少为60％。 在成型期间，向该吸附剂中加入成孔剂，然后对吸附剂进行碱处理以进行原位结晶，然后进行离子交换。 所述吸附剂具有高吸附能力，快速的传质速率和良好的机械强度。 所述吸附剂适用于从C8芳烃中液相吸附分离对二甲苯，也适用于吸附分离其他烷基芳烃异构体。

公开(公告)号：US20110105301A1

公开(公告)日：2011-05-05

申请号：US12865267

申请日：2009-01-24

申请人： Huiguo Wang ,  Jianfeng Ma ,  Dehua Wang ,  Zhuo Yu

发明人： Huiguo Wang ,  Jianfeng Ma ,  Dehua Wang ,  Zhuo Yu

IPC分类号： B01J20/18 ,  B01J20/28 ,  B01J20/32 ,  B01J20/24 ,  B01J20/20 ,  B01J20/26

CPC分类号： B01J20/183 ,  B01J20/186 ,  C07C7/13 ,  Y02P20/52 ,  C07C15/08

摘要： An agglomerated zeolite adsorbent which comprises 95-99.5 mass % of X zeolite and 0.5-5.0 mass % of binder, wherein the exchangeable cationic sites of said X zeolite are occupied by Group IIA metal and/or K, the total pore volume of said adsorbent is no less than 0.26 mL/g as measured by mercury porosimetry, the volume of pores with pore diameters from 100 to 500 nm is at least 60% based on the total pore volume. During shaping, a pore-forming agent is added to this adsorbent, and then the adsorbent is alkali treated for in-situ crystallization, followed by ion exchange. Said adsorbent has high adsorption capacity, fast mass transfer rate and good mechanical strength. Said adsorbent is suitable for liquid phase adsorptive separation of para-xylene from C8 aromatic hydrocarbons and is also suitable for adsorptive separation of other alkyl aromatic hydrocarbons isomers.

摘要翻译： 一种凝聚沸石吸附剂，其包含95-99.5质量％的X沸石和0.5-5.0质量％的粘合剂，其中所述X沸石的可交换的阳离子位点被IIA族金属和/或K占据，所述吸附剂的总孔体积 通过水银孔率法测定的不小于0.26mL / g，孔径为100-500nm的孔的体积基于总孔体积至少为60％。 在成型期间，向该吸附剂中加入成孔剂，然后对吸附剂进行碱处理以进行原位结晶，然后进行离子交换。 所述吸附剂具有高吸附能力，快速的传质速率和良好的机械强度。 所述吸附剂适用于从C8芳烃中液相吸附分离对二甲苯，也适用于吸附分离其他烷基芳烃异构体。