公开(公告)号：US20210284616A1

公开(公告)日：2021-09-16

申请号：US17259979

申请日：2019-06-17

申请人： SABIC GLOBAL TECHNOLOGIES B.V.

发明人： Jintang DUAN

IPC分类号： C07D301/08 ,  C07D303/04

摘要： Systems and methods for producing ethylene oxide (EO) are disclosed. Ethylene oxide is produced by direct oxidizing ethylene with oxygen in a reactor. The effluent from the reactor is processed to produce (a) a product stream comprising water and ethylene oxide, (b) a reabsorber overhead stream comprising ethylene, methane, argon, and carbon dioxide, and (c) a carbonate flash gas stream comprising carbon dioxide, ethylene, methane, and water. The reabsorber overhead stream and the carbonate flash gas stream are combined to form a reclaim gas stream. The reclaimed gas stream is separated in a membrane separation unit to remove carbon dioxide and argon, forming a recycle stream comprising primarily ethylene and methane, collectively.