公开(公告)号：US06395951B1

公开(公告)日：2002-05-28

申请号：US09669793

申请日：2000-09-26

申请人： David A Hamm

发明人： David A Hamm

IPC分类号： C07C712

CPC分类号： C10G53/08 ,  B01D3/14 ,  B01D3/141 ,  C07C7/005 ,  C07C7/04 ,  C10G25/00 ,  C10G25/12 ,  C07C15/08

摘要： Construction and operational costs of recovering the extract or raffinate product of a simulated moving bed adsorptive separation process units are reduced by employing a dividing wall column to perform the separation. The raffinate or extract stream is passed into the column at an intermediate point on the first side of the dividing wall, with the column delivering the adsorptive separation product as a sidedraw from the opposite side of the dividing wall. A stream of co-adsorbed impurity is removed as an overhead stream and desorbent is recovered as a net bottoms stream.

摘要翻译： 模拟移动床吸附分离工艺单元的萃取液或萃余液的回收利用分隔壁进行分离，降低了构成和运行成本。 萃余液或萃取物流在分隔壁第一侧的中间点处进入塔中，柱子将吸附分离产物作为从分隔壁的相反侧的侧面抽出。 作为塔顶物流除去共吸附杂质的流，并且作为净底部物流回收解吸剂。