PROCESS FOR IMPROVING THE SELECTIVITY OF AN EO CATALYST
摘要
The present invention relates to a process for improving the overall selectivity of an EO process for converting ethylene to ethylene oxide utilizing a highly selective EO silver catalyst containing a rhenium promoter wherein following normal operation a chloride strip of the chloride on the surface of the catalyst is conducted in order to remove a portion of the chlorides on the surface of the catalyst. The chloride strip involves the addition of certain saturated hydrocarbons to the feed. Following the chloride strip, the catalyst is optionally re-optimized.
申请公布号
WO2012078603(A1)
申请公布日期
2012.06.14
申请号
WO2011US63490
申请日期
2011.12.06
申请人
SHELL OIL COMPANY;SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.;EVANS, WAYNE ERROL;MATUSZ, MAREK;MCALLISTER, PAUL MICHAEL
发明人
EVANS, WAYNE ERROL;MATUSZ, MAREK;MCALLISTER, PAUL MICHAEL