发明名称 |
Ethylene recovery in direct-oxidation ethylene oxide processes |
摘要 |
In a direct-oxidation ethylene oxide process of the type comprising a) reacting a feed gas stream including ethylene and a commercially-pure oxygen in one or more reactors and b) absorbing out ethylene oxide from the product stream from the one or more reactors in a first absorption zone, the improvement comprising recovering unreacted ethylene from an ethylene-rich argon purge gas stream via an absorber and a stripper in combination, recycling the recovered ethylene to the feed gas stream, and purging an ethylene-lean argon purge gas stream.
|
申请公布号 |
US5233060(A) |
申请公布日期 |
1993.08.03 |
申请号 |
US19920930249 |
申请日期 |
1992.08.13 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
PENDERGAST, JOHN G.;TURNER, WAYNE A.;MARTIN, JR., HAROLD B.;NODING, STEPHEN A. |
分类号 |
C07D301/08;C07D301/10;C07D301/32;C07D303/04 |
主分类号 |
C07D301/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|