发明名称 |
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 hard 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. Following the hard strip, the catalyst is optionally re-optimized. Surprisingly, it has been found that the selectivity of the catalyst following the hard strip may be substantially higher than the selectivity prior to the hard strip. |
申请公布号 |
US2012309992(A1) |
申请公布日期 |
2012.12.06 |
申请号 |
US201113310246 |
申请日期 |
2011.12.02 |
申请人 |
HESS MARTIN LYSLE;EVANS WAYNE ERROL;KOBE JEFFREY MICHAEL;MATUSZ MAREK;SHELL OIL COMPANY |
发明人 |
HESS MARTIN LYSLE;EVANS WAYNE ERROL;KOBE JEFFREY MICHAEL;MATUSZ MAREK |
分类号 |
C07D301/04;C07C29/132;C07C41/02 |
主分类号 |
C07D301/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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