公开(公告)号：US20090018380A1

公开(公告)日：2009-01-15

申请号：US12181771

申请日：2008-07-29

申请人： Philibert LEFLAIVE ,  Lue Wolff ,  Damien Leinekugel Le Cocq

发明人： Philibert LEFLAIVE ,  Lue Wolff ,  Damien Leinekugel Le Cocq

IPC分类号： C07C7/12

CPC分类号： B01D15/185 ,  C07C7/12 ,  C07C7/13 ,  C07C15/08

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。

公开(公告)号：US07759534B2

公开(公告)日：2010-07-20

申请号：US12181771

申请日：2008-07-29

申请人： Philibert Leflaive ,  Lue Wolff ,  Damien Leinekugel Le Cocq

发明人： Philibert Leflaive ,  Lue Wolff ,  Damien Leinekugel Le Cocq

IPC分类号： C07C7/12

CPC分类号： B01D15/185 ,  C07C7/12 ,  C07C7/13 ,  C07C15/08

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。