发明名称 |
PROCESS FOR THE START-UP OF AN EPOXIDATION PROCESS, A PROCESS FOR THE PRODUCTION OF ETHYLENE OXIDE, A 1,2-DIOL, A 1,2-DIOL ETHER, A 1,2-CARBONATE, OR AN ALKANOLAMINE |
摘要 |
A process is provided for the start-up of an ethylene epoxidation process comprising: (a) contacting a catalyst bed comprising a high selectivity epoxidation catalyst with a feed comprising ethylene, oxygen and an organic chloride for a period of time until an increase of at least 1x10-5 mole-% of vinyl chloride (calculated as the moles of vinyl chloride relative to the total gas mixture), preferably 2x10-5 mole-% of vinyl chloride is detected in a reactor outlet gas or a recycle gas loop; and (b) subsequently adjusting the quantity of organic chloride in the feed to a value sufficient to produce ethylene oxide at a substantially optimum selectivity.
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申请公布号 |
US2009281339(A1) |
申请公布日期 |
2009.11.12 |
申请号 |
US20090437172 |
申请日期 |
2009.05.07 |
申请人 |
MATUSZ MAREK;MCALLISTER PAUL MICHAEL |
发明人 |
MATUSZ MAREK;MCALLISTER PAUL MICHAEL |
分类号 |
C07D301/08;C07C29/00;C07C41/02;C07C69/96 |
主分类号 |
C07D301/08 |
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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