-
公开(公告)号：US20090264674A1
公开(公告)日：2009-10-22
申请号：US12420449
申请日：2009-04-08
申请人： Hsiao-Ping HUANG , Cheng-Ching YU , Ming-Jer LEE , Shih-Bo HUNG , I-Kuan LAI
发明人： Hsiao-Ping HUANG , Cheng-Ching YU , Ming-Jer LEE , Shih-Bo HUNG , I-Kuan LAI
CPC分类号： C07C67/08 , Y02P20/127 , Y02P20/582 , C07C69/44 , C07C69/42
摘要： The system and method for producing diester are provided. The system includes a first distillation unit reacting a dicarboxylic acid with an alcohol to produce a first gaseous mixture, a first cooling unit connected to the first distillation unit and cooling the first gaseous mixture into a first liquid mixture, a second distillation unit connected to the first cooling unit and separating the first liquid mixture into a second gaseous mixture and a second liquid mixture, and a liquid-liquid extraction unit connected to the second distillation unit and separating the second liquid mixture into an aqueous-rich mixture and an organic-rich mixture from which the diester is obtained.
摘要翻译： 提供了制备二酯的体系和方法。 该系统包括使二羧酸与醇反应以产生第一气体混合物的第一蒸馏单元，连接到第一蒸馏单元并将第一气态混合物冷却成第一液体混合物的第一冷却单元，连接到第二蒸馏单元 第一冷却单元并将第一液体混合物分离成第二气体混合物和第二液体混合物，以及连接到第二蒸馏单元的液 - 液萃取单元，并将第二液体混合物分离成富含水的混合物和富含有机物的混合物 获得二酯的混合物。
-
公开(公告)号：US07399881B1
公开(公告)日：2008-07-15
申请号：US11715776
申请日：2007-03-08
IPC分类号： C07C67/02
CPC分类号： C07C67/03 , C07C67/54 , Y02P20/127 , C07C69/003 , C07C69/14
摘要： A transesterification process of methyl acetate is provided. The process comprises: (a) performing a first reactive distillation of a methyl acetate solution and a first alcohol to generate a first ester and a first mixture; (b) performing a first distillation of a first part of the first mixture to generate a second mixture; and (c) performing a second reactive distillation of a first part of the second mixture and a second alcohol to generate a second ester; wherein the respective one of the first and second alcohols is a limiting reagent. The transesterification process provided in the present invention could highly reduce the investing production cost of the transesterification of the by-product, methyl acetate, in the conventional polyvinyl alcohol plants.
摘要翻译： 提供乙酸甲酯的酯交换过程。 该方法包括：（a）对乙酸甲酯溶液和第一醇进行第一反应蒸馏以产生第一酯和第一混合物; （b）对所述第一混合物的第一部分进行第一蒸馏以产生第二混合物; 和（c）对所述第二混合物的第一部分和第二醇进行第二反应蒸馏以产生第二酯; 其中所述第一和第二醇中的相应的一种是限制性试剂。 本发明提供的酯交换方法可以大大降低常规聚乙烯醇装置中副产物乙酸甲酯的酯交换反应的投资生产成本。
-
3.发明授权Method and apparatus for PID controller with adjustable deadtime compensation 有权具有可调节死区补偿功能的PID控制器的方法和装置公开(公告)号：US07181295B2
公开(公告)日：2007-02-20
申请号：US10911338
申请日：2004-08-04
申请人： Cheng-Ching Yu , Shih-Bo Hung , Yu-Chang Cheng
发明人： Cheng-Ching Yu , Shih-Bo Hung , Yu-Chang Cheng
IPC分类号： G05B13/02
CPC分类号： G05B11/42 , G05B5/01 , G05B13/042
摘要： In the present invention, a Smith predictor enhanced PID controller, SP-PID, is proposed. A tuning parameter Ksp is devised and the SP-PID controller would be gradually transformed from a PID controller to a Smith predictor as Ksp changes from 0 to 1. Properties of the SP-PID are explored and the design procedure is given to ensure a certain degree of robustness. Simulation results clearly indicate that the SP-PID takes advantage of the SP when small modeling error is encountered and it is gradually detuned to a PID controller, a user-friendly controller, when the model quality degrades. Moreover, the controller and its design procedure can be implemented in current process control computers with virtually no extra hardware cost.
摘要翻译： 在本发明中，提出了史密斯预测增强PID控制器SP-PID。 设计了一个调谐参数“SP”，并且当“0”到“1”时，SP-PID控制器将逐渐从PID控制器转换到Smith预测器。 探索了SP-PID，并给出了设计过程，以确保一定程度的鲁棒性。 仿真结果清楚地表明，SP-PID在遇到小的建模误差时利用了SP，当模型质量下降时，它逐渐失谐到PID控制器，用户友好的控制器。 此外，控制器及其设计程序可以在现有的过程控制计算机中实现，实际上没有额外的硬件成本。
-
公开(公告)号：US20100125145A1
公开(公告)日：2010-05-20
申请号：US12465596
申请日：2009-05-13
摘要： The trans-esterification system for trans-esterifying a triglyceride includes a reaction tank, a separation tank, a first pipe and a second pipe. The reaction tank is inputted with the triglyceride and a monohydric alcohol for undergoing a trans-esterification reaction to produce a mixture. The separation tank is inputted with the mixture for a phase separation to generate an ester phase solution and a glycerol phase solution having a first part and a second part. The first pipe connects the reaction tank and the separation tank, and transports the mixture from the reaction tank to the separation tank. The second pipe connects the reaction tank and the separation tank, and transports the first part of the glycerol phase solution from the separation tank to the reaction tank for undergoing the trans-esterification reaction.
摘要翻译： 用于酯交换甘油三酸酯的酯交换体系包括反应槽，分离槽，第一管和第二管。 输入反应槽中的甘油三酯和一元醇进行酯交换反应以产生混合物。 向分离槽输入混合物进行相分离以产生具有第一部分和第二部分的酯相溶液和甘油相溶液。 第一管连接反应罐和分离罐，并将混合物从反应罐输送到分离罐。 第二管连接反应罐和分离罐，并将第一部分甘油相溶液从分离罐输送到反应罐进行酯交换反应。
-
公开(公告)号：US20080128262A1
公开(公告)日：2008-06-05
申请号：US11699849
申请日：2007-01-30
申请人： Hsiao-Ping Huang , Cheng-Ching Yu , Ming-Jer Lee , Yu-De Lin , Jian-Kai Cheng
发明人： Hsiao-Ping Huang , Cheng-Ching Yu , Ming-Jer Lee , Yu-De Lin , Jian-Kai Cheng
CPC分类号： B01D3/009 , B01D3/146 , C07C51/09 , C07C51/44 , Y02P20/127 , Y10S203/06 , C07C53/08
摘要： A separation system for a methyl acetate hydrolysis is provided. The separation system comprises a reactive distillation system, a reflux system, a first separation system and a second separation. The reactive distillation system allows the hydrolysis of a methyl acetate solution to generate a first mixture and a second mixture. The reflux system is packed with a heterogeneous catalyst and coupled to the reactive distillation system, which refluxes the first mixture to the reactive distillation system. The first separation system is coupled to the reactive distillation system, which directs the second mixture thereinto so as to isolate an acetic acid and a third mixture therefrom. The second separation system is coupled to the first separation system, which directs the third mixture thereintio so as to separate a methanol therefrom. The methyl acetate feeding system is coupled to, one of the reactive distillation system and the reflux system, which feeds the methyl acetate solution thereinto.
摘要翻译： 提供了一种用于乙酸甲酯水解的分离系统。 分离系统包括反应蒸馏系统，回流系统，第一分离系统和第二分离。 反应蒸馏系统允许水解乙酸甲酯溶液以产生第一混合物和第二混合物。 回流系统装有非均相催化剂并与反应蒸馏系统偶联，反应蒸馏系统使第一混合物回流到反应蒸馏系统。 第一分离系统耦合到反应蒸馏系统，其将第二混合物引导到其中以从其中分离乙酸和第三混合物。 第二分离系统耦合到第一分离系统，其将第三混合物引导到其中以从其分离甲醇。 将乙酸甲酯进料系统与反应蒸馏系统和回流系统中的一个反应，将乙酸甲酯溶液加入其中。
-
6.发明授权公开(公告)号：US08314266B2
公开(公告)日：2012-11-20
申请号：US12220940
申请日：2008-07-30
IPC分类号： C07C67/08
CPC分类号： C07C67/08 , B01D3/009 , Y02P20/127 , C07C69/14
摘要： A process for manufacturing esters from acid and alcohol and a system thereof are provided, wherein the system includes a reactive distillation column, a sidestream reactor packed with catalyst, and a decanter for conducting the method. The method is carried out by (a) extracting a first mixture of acid and alcohol from the reactive distillation column, for then feeding the first mixture to at least one sidestream reactor packed with catalyst to obtain a reaction product; (b) feeding the reaction product from the sidestream reactor to the reactive distillation column, allowing a second mixture of alcohol, ester and water to be separated from a top end of the reactive distillation column; (c) feeding the second mixture into the decanter to separate an organic phase from an aqueous phase; and (d) separating esters from the organic phase. The method and system allow the esters to be extracted without using a plurality of recovering columns and decanters, and are capable of improving packing/changing catalyst in a single reactive distillation column.
摘要翻译： 提供了一种由酸和醇制备酯的方法及其制备方法，其中该体系包括反应蒸馏塔，装有催化剂的侧流反应器和用于进行该方法的滗析器。 该方法通过以下步骤进行：（a）从反应蒸馏塔中提取酸和醇的第一混合物，然后将第一混合物进料至填充有催化剂的至少一个侧流反应器以获得反应产物; （b）将来自侧流反应器的反应产物进料到反应蒸馏塔，使醇，酯和水的第二混合物与反应蒸馏塔的顶端分离; （c）将第二混合物进料到滗析器中以将有机相与水相分离; 和（d）从有机相分离酯。 该方法和系统允许在不使用多个回收塔和滗析器的情况下提取酯，并且能够改进单个反应蒸馏塔中的填料/改变催化剂。
-
公开(公告)号：US07862783B2
公开(公告)日：2011-01-04
申请号：US11699849
申请日：2007-01-30
申请人： Hsiao-Ping Huang , Cheng-Ching Yu , Ming-Jer Lee , Yu-De Lin , Jian-Kai Cheng
发明人： Hsiao-Ping Huang , Cheng-Ching Yu , Ming-Jer Lee , Yu-De Lin , Jian-Kai Cheng
CPC分类号： B01D3/009 , B01D3/146 , C07C51/09 , C07C51/44 , Y02P20/127 , Y10S203/06 , C07C53/08
摘要： A separation system for a methyl acetate hydrolysis is provided. The separation system comprises a reactive distillation system, a reflux system, a first separation system and a second separation. The reactive distillation system allows the hydrolysis of a methyl acetate solution to generate a first mixture and a second mixture. The reflux system is packed with a heterogeneous catalyst and coupled to the reactive distillation system, which refluxes the first mixture to the reactive distillation system. The first separation system is coupled to the reactive distillation system, which directs the second mixture thereinto so as to isolate an acetic acid and a third mixture therefrom. The second separation system is coupled to the first separation system, which directs the third mixture thereintio so as to separate a methanol therefrom. The methyl acetate feeding system is coupled to, one of the reactive distillation system and the reflux system, which feeds the methyl acetate solution thereinto.
摘要翻译： 提供了一种用于乙酸甲酯水解的分离系统。 分离系统包括反应蒸馏系统，回流系统，第一分离系统和第二分离。 反应蒸馏系统允许水解乙酸甲酯溶液以产生第一混合物和第二混合物。 回流系统装有非均相催化剂并与反应蒸馏系统偶联，反应蒸馏系统使第一混合物回流到反应蒸馏系统。 第一分离系统耦合到反应蒸馏系统，其将第二混合物引导到其中以从其中分离乙酸和第三混合物。 第二分离系统耦合到第一分离系统，其将第三混合物引导到其中以从其分离甲醇。 将乙酸甲酯进料系统与反应蒸馏系统和回流系统中的一个反应，将乙酸甲酯溶液加入其中。
-
公开(公告)号：US20090198083A1
公开(公告)日：2009-08-06
申请号：US12220940
申请日：2008-07-30
CPC分类号： C07C67/08 , B01D3/009 , Y02P20/127 , C07C69/14
摘要： A process for manufacturing esters from acid and alcohol and a system thereof are provided, wherein the system includes a reactive distillation column, a sidestream reactor packed with catalyst, and a decanter for conducting the method. The method is carried out by (a) extracting a first mixture of acid and alcohol from the reactive distillation column, for then feeding the first mixture to at least one sidestream reactor packed with catalyst to obtain a reaction product; (b) feeding the reaction product from the sidestream reactor to the reactive distillation column, allowing a second mixture of alcohol, ester and water to be separated from a top end of the reactive distillation column; (c) feeding the second mixture into the decanter to separate an organic phase from an aqueous phase; and (d) separating esters from the organic phase. The method and system allow the esters to be extracted without using a plurality of recovering columns and decanters, and are capable of improving packing/changing catalyst in a single reactive distillation column.
摘要翻译： 提供了一种由酸和醇制备酯的方法及其制备方法，其中该体系包括反应蒸馏塔，装有催化剂的侧流反应器和用于进行该方法的滗析器。 该方法通过以下步骤进行：（a）从反应蒸馏塔中提取酸和醇的第一混合物，然后将第一混合物进料至填充有催化剂的至少一个侧流反应器以获得反应产物; （b）将来自侧流反应器的反应产物进料到反应蒸馏塔，使醇，酯和水的第二混合物与反应蒸馏塔的顶端分离; （c）将第二混合物进料到滗析器中以将有机相与水相分离; 和（d）从有机相分离酯。 该方法和系统允许在不使用多个回收塔和滗析器的情况下提取酯，并且能够改进单个反应蒸馏塔中的填料/改变催化剂。
-
公开(公告)号：US20080161595A1
公开(公告)日：2008-07-03
申请号：US11715776
申请日：2007-03-08
IPC分类号： C07C67/02
CPC分类号： C07C67/03 , C07C67/54 , Y02P20/127 , C07C69/003 , C07C69/14
摘要： A transesterification process of methyl acetate is provided. The process comprises: (a) performing a first reactive distillation of a methyl acetate solution and a first alcohol to generate a first ester and a first mixture; (b) performing a first distillation of a first part of the first mixture to generate a second mixture; and (c) performing a second reactive distillation of a first part of the second mixture and a second alcohol to generate a second ester; wherein the respective one of the first and second alcohols is a limiting reagent. The transesterification process provided in the present invention could highly reduce the investing production cost of the transesterification of the by-product, methyl acetate, in the conventional polyvinyl alcohol plants.
摘要翻译： 提供乙酸甲酯的酯交换过程。 该方法包括：（a）对乙酸甲酯溶液和第一醇进行第一反应蒸馏以产生第一酯和第一混合物; （b）对所述第一混合物的第一部分进行第一蒸馏以产生第二混合物; 和（c）对所述第二混合物的第一部分和第二醇进行第二反应蒸馏以产生第二酯; 其中所述第一和第二醇中的相应的一种是限制性试剂。 本发明提供的酯交换方法可以大大降低常规聚乙烯醇装置中副产物乙酸甲酯的酯交换反应的投资生产成本。
-
10.发明申请Method and apparatus for PID controller with adjustable deadtime compensation 有权具有可调节死区补偿功能的PID控制器的方法和装置公开(公告)号：US20050251272A1
公开(公告)日：2005-11-10
申请号：US10911338
申请日：2004-08-04
申请人： Cheng-Ching Yu , Shih-Bo Hung , Yu-Chang Cheng
发明人： Cheng-Ching Yu , Shih-Bo Hung , Yu-Chang Cheng
CPC分类号： G05B11/42 , G05B5/01 , G05B13/042
摘要： In the present invention, a Smith predictor enhanced PID controller, SP-PID, is proposed. A tuning parameter Ksp is devised and the SP-PID controller would be gradually transformed from a PID controller to a Smith predictor as Ksp changes from 0 to 1. Properties of the SP-PID are explored and the design procedure is given to ensure a certain degree of robustness. Simulation results clearly indicate that the SP-PID takes advantage of the SP when small modeling error is encountered and it is gradually detuned to a PID controller, a user-friendly controller, when the model quality degrades. Moreover, the controller and its design procedure can be implemented in current process control computers with virtually no extra hardware cost.
摘要翻译： 在本发明中，提出了史密斯预测增强PID控制器SP-PID。 设计了一个调谐参数“SP”，并且当从0到1变化时，SP-PID控制器将从PID控制器逐渐变换到史密斯预测器。属性 探索了SP-PID，并给出了设计过程，以确保一定程度的鲁棒性。 仿真结果清楚地表明，SP-PID在遇到小的建模误差时利用了SP，当模型质量下降时，它逐渐失谐到PID控制器，用户友好的控制器。 此外，控制器及其设计程序可以在现有的过程控制计算机中实现，实际上没有额外的硬件成本。
-
-
-
-
-
-
-
-
-
搜索结果
12 条记录 (耗时 0.022 秒)
