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公开(公告)号：US20090082584A1
公开(公告)日：2009-03-26
申请号：US11861736
申请日：2007-09-26
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。
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公开(公告)号：US20080306291A1
公开(公告)日：2008-12-11
申请号：US12116653
申请日：2008-05-07
IPC分类号： C07D301/10 , C07D301/08
CPC分类号： C07D301/10
摘要： A method to achieve a controlled start-up temperature of an expoxidation process which exceeds the maximum achievable temperature of the epoxidation reactor relative to using an external heat source. The method of the present invention employs an oxidation reaction within the reactor to bring the temperature of the reactor to a temperature that is suitable for conditioning a high selectivity catalyst. The method of the present invention includes first bringing a reactor including a high selectivity catalyst to a first temperature using the external heat source to the reactor, while staying within the reactor design limitations and maintaining a gas flow to the reactor that is within 25 to 100% of the design rates. Once the reactor has achieved the first temperature, at least an olefin, e.g., ethylene, and then oxygen are introduced to the reactor feed gas. The olefin and oxygen concentrations are adjusted to have a heat of reaction that will allow raising the reactor gas flow to 100% of design and then have sufficient heat of reaction to raise the reactor temperature to a second temperature which is greater than the first temperature and greater than the temperature of the reactor achievable by the external heat source.
摘要翻译： 实现超过环氧化反应器相对于使用外部热源的最大可实现温度的过氧化过程的控制启动温度的方法。 本发明的方法在反应器内采用氧化反应使反应器的温度达到适于调节高选择性催化剂的温度。 本发明的方法包括首先将包含高选择性催化剂的反应器使用外部热源引入反应器，同时保持在反应器设计限制范围内并保持气体流入反应器的温度在25至100℃ ％的设计率。 一旦反应器达到第一个温度，至少将一种烯烃，如乙烯，然后将氧气引入到反应器进料气中。 调节烯烃和氧浓度以具有反应热，其将使反应器气体流量提高到设计的100％，然后具有足够的反应热，将反应器温度升高到大于第一温度的第二温度， 大于外部热源可实现的反应器的温度。
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公开(公告)号：US07696368B2
公开(公告)日：2010-04-13
申请号：US12116653
申请日：2008-05-07
IPC分类号： C07D301/10
CPC分类号： C07D301/10
摘要： A method to achieve a controlled start-up temperature of an expoxidation process which exceeds the maximum achievable temperature of the epoxidation reactor relative to using an external heat source. The method of the present invention employs an oxidation reaction within the reactor to bring the temperature of the reactor to a temperature that is suitable for conditioning a high selectivity catalyst. The method of the present invention includes first bringing a reactor including a high selectivity catalyst to a first temperature using the external heat source to the reactor, while staying within the reactor design limitations and maintaining a gas flow to the reactor that is within 25 to 100% of the design rates. Once the reactor has achieved the first temperature, at least an olefin, e.g., ethylene, and then oxygen are introduced to the reactor feed gas. The olefin and oxygen concentrations are adjusted to have a heat of reaction that will allow raising the reactor gas flow to 100% of design and then have sufficient heat of reaction to raise the reactor temperature to a second temperature which is greater than the first temperature and greater than the temperature of the reactor achievable by the external heat source.
摘要翻译： 实现超过环氧化反应器相对于使用外部热源的最大可实现温度的过氧化过程的控制启动温度的方法。 本发明的方法在反应器内采用氧化反应使反应器的温度达到适于调节高选择性催化剂的温度。 本发明的方法包括首先将包含高选择性催化剂的反应器使用外部热源引入反应器，同时保持在反应器设计限制范围内并保持气体流入反应器的温度在25至100℃ ％的设计率。 一旦反应器达到第一个温度，至少将一种烯烃，如乙烯，然后将氧气引入到反应器进料气中。 调节烯烃和氧浓度以具有反应热，其将使反应器气体流量提高到设计的100％，然后具有足够的反应热，将反应器温度升高到大于第一温度的第二温度， 大于外部热源可实现的反应器的温度。
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4.发明申请CHEMICAL PROCESS OPTIMIZATION METHOD THAT CONSIDERS CHEMICAL PROCESS PLANT SAFETY 有权化学过程优化方法考虑化学过程植物安全公开(公告)号：US20090069944A1
公开(公告)日：2009-03-12
申请号：US11852713
申请日：2007-09-10
IPC分类号： G05B21/00
CPC分类号： G05B9/02 , B01J8/025 , B01J2208/00274 , B01J2208/00539 , B01J2219/00259 , B01J2219/00263 , B01J2219/0027
摘要： A method for assuring safety of a particular chemical process plant includes measuring, for each of a plurality of sets of proposed process conditions for a particular chemical process within the particular chemical process plant, a pressure rise rate following a deliberate contained ignition of at least one material used within the particular chemical process. From the resulting plurality of pressure rise rates that corresponds with the plurality of sets of proposed process conditions a particular pressure rise rate that allows for a safe operation of the particular chemical reaction within the particular chemical process plant may be selected. The particular chemical process may be implemented within the particular chemical process plant while using a particular set of process conditions from the plurality of sets of process conditions that corresponds with the selected pressure rise rate. As an adjunct, the particular chemical reaction may also be subsequently and additionally optimized with respect to an ancillary parameter, such as product yield or feedstock utilization.
摘要翻译： 用于确保特定化学过程设备的安全性的方法包括针对特定化学过程设备中的特定化学过程的多组提出的工艺条件中的每一个测量在故意包含点火之后的至少一个 在特定化学过程中使用的材料。 从所得到的多个与多组所提出的工艺条件相对应的压力上升率可以选择允许特定化学工艺装置内的特定化学反应的安全操作的特定压力上升速率。 特定化学过程可以在特定化学过程工厂内实施，同时使用来自对应于所选压力升高速率的多组工艺条件的特定工艺条件集合。 作为辅助剂，特定的化学反应也可以随后并附加地优于辅助参数，例如产物收率或原料利用率。
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公开(公告)号：US07553980B2
公开(公告)日：2009-06-30
申请号：US11861736
申请日：2007-09-26
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。
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