公开(公告)号：EP1618100A2

公开(公告)日：2006-01-25

申请号：EP04715068.5

申请日：2004-02-26

申请人： SHELL INTERNATIONAL RESEARCH MAATSCHAPPIJ B.V.

发明人： CHIPMAN, Peter, Ingraham ,  MADGAVKAR, Ajay, Madhav ,  SHIPP, Gregg, Barton

IPC分类号： C07D301/10

CPC分类号： C07D301/10 ,  Y02P20/52

摘要： Described is a method of improving the process and operation of an existing system for manufacturing ethylene oxide. The ethylene oxide manufacturing system includes an epoxidation reactor system containing a volume of high activity epoxidation catalyst. The method includes replacing a portion of the volume of high activity epoxidation catalyst with a volume of high selectivity catalyst, and modifying the operation of the process system so as to provide for a feed to the epoxidation reactor system having a reduced carbon dioxide concentration.