公开(公告)号：US07060866B2

公开(公告)日：2006-06-13

申请号：US10125138

申请日：2002-04-18

申请人： Cor F. Van Egmond ,  Jeffrey L. Brinen ,  James R. Lattner ,  Michael Peter Nicoletti

发明人： Cor F. Van Egmond ,  Jeffrey L. Brinen ,  James R. Lattner ,  Michael Peter Nicoletti

IPC分类号： C07G7/10 ,  C07G7/08 ,  C07G1/02

CPC分类号： C07C7/04 ,  C07C11/02

摘要： Disclosed is a method of removing dimethyl ether from an ethylene and/or propylene containing stream. Dimethyl ether is removed at a high pressure, preferably in a distillation column. The high pressure separation has the benefit of providing a relatively low bottoms temperature separation, while allowing for recovery of a highly concentrated ethylene and/or propylene stream.