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1. 发明申请

US20090082584A1 PROCESS FOR INITIATING A HIGHLY SELECTIVE ETHYLENE OXIDE CATALYST 有权
标题翻译：开发高选择性乙烯氧化物催化剂的方法
公开(公告)号：US20090082584A1
公开(公告)日：2009-03-26
申请号：US11861736
申请日：2007-09-26
申请人： Nabil Rizkalla , Barry Jay Billig , Norma B. Castagnola
发明人： Nabil Rizkalla , Barry Jay Billig , Norma B. Castagnola
IPC分类号： C07D301/10
CPC分类号： C07D301/10 , Y02P20/52
摘要： A process for initiating a highly selective ethylene oxide catalyst is provided in which the highly selective ethylene oxide catalyst is operated first as a ‘standard’ Ag-based catalyst (e.g., a catalyst that contains only silver and alkali metal, especially cesium). Moreover, the inventive initiation procedure is more efficient when the concentration of carbon dioxide in the feed is higher than 6 vol. %, and even more efficient when the concentration of carbon dioxide in the feed is higher than 10 vol. %, of the feed mixture during the initiation period.
摘要翻译：提供了一种引发高选择性环氧乙烷催化剂的方法，其中高选择性环氧乙烷催化剂首先作为“标准”Ag基催化剂（例如仅含有银和碱金属，特别是铯的催化剂）。此外，当进料中二氧化碳的浓度高于6体积时，本发明的引发程序更有效。％，并且当进料中二氧化碳的浓度高于10体积时甚至更有效。％的进料混合物。

2. 发明授权

US07553980B2 Process for initiating a highly selective ethylene oxide catalyst 有权
标题翻译：引发高选择性环氧乙烷催化剂的方法
公开(公告)号：US07553980B2
公开(公告)日：2009-06-30
申请号：US11861736
申请日：2007-09-26
申请人： Nabil Rizkalla , Barry Jay Billig , Norma B. Castagnola
发明人： Nabil Rizkalla , Barry Jay Billig , Norma B. Castagnola
IPC分类号： C07D301/10
CPC分类号： C07D301/10 , Y02P20/52
摘要： A process for initiating a highly selective ethylene oxide catalyst is provided in which the highly selective ethylene oxide catalyst is operated first as a ‘standard’ Ag-based catalyst (e.g., a catalyst that contains only silver and alkali metal, especially cesium). Moreover, the inventive initiation procedure is more efficient when the concentration of carbon dioxide in the feed is higher than 6 vol. %, and even more efficient when the concentration of carbon dioxide in the feed is higher than 10 vol. %, of the feed mixture during the initiation period.
摘要翻译：提供了一种引发高选择性环氧乙烷催化剂的方法，其中高选择性环氧乙烷催化剂首先作为“标准”Ag基催化剂（例如仅含有银和碱金属，特别是铯的催化剂）。此外，当进料中二氧化碳的浓度高于6体积时，本发明的引发程序更有效。％，并且当进料中二氧化碳的浓度高于10体积时甚至更有效。％的进料混合物。

3. 发明授权

US08487123B2 Process for initiating a highly selective ethylene oxide catalyst 有权
标题翻译：引发高选择性环氧乙烷催化剂的方法
公开(公告)号：US08487123B2
公开(公告)日：2013-07-16
申请号：US12977549
申请日：2010-12-23
申请人： Nabil Rizkalla , Norma B. Castagnola , Girish Desai
发明人： Nabil Rizkalla , Norma B. Castagnola , Girish Desai
IPC分类号： C07D301/03
CPC分类号： C07D301/10
摘要： A start-up process for epoxidation of ethylene is provided. The process includes initiating an epoxidation reaction by reacting a feed gas composition in the presence of an epoxidation catalyst at a first temperature of about 180° C. to about 210° C. The first temperature is increased to a second temperature of about 230° C. to about 290° C., over a time period of about 6 hours to about 50 hours, while simultaneously adding a sufficient concentration of moderator so that the amount of moderator adsorbed on the catalyst after achieving the second temperature is from about 10 to about 50 g/m3 of catalyst. The second temperature is maintained for about 50 hours to about 350 hours, while regulating the feed gas composition to contain about 0.5% to about 25% CO2. The second temperature is decreased to a third temperature, while simultaneously increasing moderator concentration to a level greater than the sufficient concentration.
摘要翻译：提供了乙烯环氧化的启动方法。该方法包括通过在约180℃至约210℃的第一温度下在环氧化催化剂存在下使进料气体组合物反应来引发环氧化反应。将第一温度升至约230℃的第二温度至约290℃，同时加入约6小时至约50小时的时间，同时加入足够浓度的缓和剂，使得达到第二温度后吸附在催化剂上的缓和剂的量为约10至约 50 g / m3催化剂。第二温度保持约50小时至约350小时，同时调节进料气体组成以含有约0.5％至约25％的CO 2。第二温度降低到第三温度，同时将增效剂浓度同时提高至高于足够浓度的水平。

4. 发明申请

US20110152549A1 PROCESS FOR INITIATING A HIGHLY SELECTIVE ETHYLENE OXIDE CATALYST 有权
标题翻译：开发高选择性乙烯氧化物催化剂的方法
公开(公告)号：US20110152549A1
公开(公告)日：2011-06-23
申请号：US12977549
申请日：2010-12-23
申请人： Nabil Rizkalla , Norma B. Castagnola , Girish Desai
发明人： Nabil Rizkalla , Norma B. Castagnola , Girish Desai
IPC分类号： C07D301/03
CPC分类号： C07D301/10
摘要： A start-up process for epoxidation of ethylene is provided. The process includes initiating an epoxidation reaction by reacting a feed gas composition in the presence of an epoxidation catalyst at a first temperature of about 180° C. to about 210° C. The first temperature is increased to a second temperature of about 230° C. to about 290° C., over a time period of about 6 hours to about 50 hours, while simultaneously adding a sufficient concentration of moderator so that the amount of moderator adsorbed on the catalyst after achieving the second temperature is from about 10 to about 50 g/m3 of catalyst. The second temperature is maintained for about 50 hours to about 350 hours, while regulating the feed gas composition to contain about 0.5% to about 25% CO2. The second temperature is decreased to a third temperature, while simultaneously increasing moderator concentration to a level greater than the sufficient concentration.
摘要翻译：提供了乙烯环氧化的启动方法。该方法包括通过在约180℃至约210℃的第一温度下在环氧化催化剂存在下使进料气体组合物反应来引发环氧化反应。将第一温度升高至约230℃的第二温度至约290℃，同时加入约6小时至约50小时的时间，同时加入足够浓度的缓和剂，使得达到第二温度后吸附在催化剂上的缓和剂的量为约10至约 50 g / m3催化剂。第二温度保持约50小时至约350小时，同时调节进料气体组成以含有约0.5％至约25％的CO 2。第二温度降低到第三温度，同时将增效剂浓度同时提高至高于足够浓度的水平。

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