Invention Grant
US09346774B2 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
有权
环氧化方法启动方法，生产环氧乙烷的方法，1,2-二醇，1,2-二醇醚，1,2-碳酸酯或链烷醇胺
- Patent Title: 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
- Patent Title (中): 环氧化方法启动方法，生产环氧乙烷的方法，1,2-二醇，1,2-二醇醚，1,2-碳酸酯或链烷醇胺
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Application No.: US12437172Application Date: 2009-05-07
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Publication No.: US09346774B2Publication Date: 2016-05-24
- Inventor: Marek Matusz , Paul Michael McAllister
- Applicant: Marek Matusz , Paul Michael McAllister
- Applicant Address: US TX Houston
- Assignee: Shell Oil Company
- Current Assignee: Shell Oil Company
- Current Assignee Address: US TX Houston
- Main IPC: C07D301/03
- IPC: C07D301/03 ; C07D301/10
Abstract:
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 1×10−5 mole-% of vinyl chloride (calculated as the moles of vinyl chloride relative to the total gas mixture), preferably 2×10−5 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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