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1. 发明申请

US20140316150A1 METHOD OF REDUCING OR MAINTAINING THE VALUE OF AN ALKYLENE OXIDE PRODUCTION PARAMETER IN A PROCESS OF MAKING AN ALKYLENE OXIDE USING A HIGH EFFICIENCY CATALYST 有权
标题翻译：使用高效催化剂制备亚烷基氧化物的方法减少或维持亚烷基氧化物生产参数的值的方法
公开(公告)号：US20140316150A1
公开(公告)日：2014-10-23
申请号：US14363388
申请日：2012-12-06
申请人： Dow Technology Investments LLC
发明人： Liping Zhang , Sasanka Raha , Biju M. Devassy , Balu S. Uphade , Arun G. Basrur , Ailene Gardner Phillips , Ravindra Tupe
IPC分类号： C07D301/10
CPC分类号： C07D301/10
摘要： Methods of reducing or maintaining the value of an alkylene oxide production parameter (such as alkylene oxide production rate) in a process of making an alkylene oxide by reacting an alkylene and oxygen over a high efficiency catalyst are shown and described. One method comprises reducing the concentration of oxygen in the reactor feed gas to reduce or maintain the value of the alkylene oxide production parameter.
摘要翻译：示出并描述了通过在高效率催化剂上使亚烷基和氧气反应制备环氧烷烃的方法来降低或维持环氧烷生产参数值（如环氧烷生产速率）的方法。一种方法包括降低反应器进料气体中的氧气浓度以减少或维持环氧烷生产参数的值。

2. 发明授权

US10208005B2 Process for manufacturing ethylene oxide using scaled selectivity values 有权
公开(公告)号：US10208005B2
公开(公告)日：2019-02-19
申请号：US15540076
申请日：2015-09-30
申请人： Dow Technology Investments LLC
发明人： Ailene Gardner Phillips
IPC分类号： C07D301/10 , B01J23/68
摘要： Disclosed herein are methods of using scaled selectivities to assist in determining whether changes to the value of a target ethylene oxide production parameter—such as ethylene oxide production rate—used in the process of epoxidizing ethylene with a high-selectivity catalyst, have caused the process to move away from optimal operation. If the deviation from optimal operation has not worsened, it is generally unnecessary to perform a full optimization study even if the value of a target ethylene oxide production parameter has changed, which reduces or eliminates process disturbances caused by carrying out such studies. Methods are also disclosed which use both scaled selectivities and scaled reaction temperatures. If scaled selectivities reveal that a change in the value of a target ethylene oxide production parameter has moved the process away from optimal operation, scaled reaction temperatures can, under certain conditions, provide an indication of the directions in which the reaction temperature and/or overall catalyst chloriding effectiveness should be changed to move toward optimal operation. If a change in the value of a target ethylene oxide production parameter has improved the scaled selectivity, the scaled reaction temperature may also be used to guide further adjustments which may further improve scaled selectivity.

3. 发明授权

US09181207B2 Method of reducing or maintaining the value of an alkylene oxide production parameter in a process of making an alkylene oxide using a high efficiency catalyst 有权
标题翻译：在使用高效催化剂制备环氧烷烃的方法中，减少或维持环氧烷生产参数值的方法
公开(公告)号：US09181207B2
公开(公告)日：2015-11-10
申请号：US14363388
申请日：2012-12-06
申请人： Dow Technology Investments LLC
发明人： Liping Zhang , Sasanka Raha , Biju M. Devassy , Balu S. Uphade , Arun G. Basrur , Ailene Gardner Phillips , Ravindra Tupe
IPC分类号： C07D301/10
CPC分类号： C07D301/10
摘要： Methods of reducing or maintaining the value of an alkylene oxide production parameter (such as alkylene oxide production rate) in a process of making an alkylene oxide by reacting an alkylene and oxygen over a high efficiency catalyst are shown and described. One method comprises reducing the concentration of oxygen in the reactor feed gas to reduce or maintain the value of the alkylene oxide production parameter.
摘要翻译：示出并描述了通过在高效率催化剂上使亚烷基和氧气反应制备环氧烷烃的方法来降低或维持环氧烷生产参数值（如环氧烷生产速率）的方法。一种方法包括降低反应器进料气体中的氧气浓度以减少或维持环氧烷生产参数的值。

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