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    • 1. 发明授权
    • Method and apparatus for PID controller with adjustable deadtime compensation
    • 具有可调节死区补偿功能的PID控制器的方法和装置
    • US07181295B2
    • 2007-02-20
    • US10911338
    • 2004-08-04
    • Cheng-Ching YuShih-Bo HungYu-Chang Cheng
    • Cheng-Ching YuShih-Bo HungYu-Chang Cheng
    • G05B13/02
    • G05B11/42G05B5/01G05B13/042
    • 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.
    • 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。
    • 6. 发明申请
    • Separation process for methyl acetate hydrolysis and apparatus thereof
    • 乙酸甲酯水解分离方法及其设备
    • US20080128262A1
    • 2008-06-05
    • US11699849
    • 2007-01-30
    • Hsiao-Ping HuangCheng-Ching YuMing-Jer LeeYu-De LinJian-Kai Cheng
    • Hsiao-Ping HuangCheng-Ching YuMing-Jer LeeYu-De LinJian-Kai Cheng
    • B01D3/40B01D3/34B01D3/42
    • B01D3/009B01D3/146C07C51/09C07C51/44Y02P20/127Y10S203/06C07C53/08
    • 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.
    • 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。
    • 7. 发明授权
    • Method for manufacturing esters from acid and alcohol and system thereof
    • 从酸和醇制备酯的方法及其制备方法
    • US08314266B2
    • 2012-11-20
    • US12220940
    • 2008-07-30
    • Cheng-Ching YuHsiao-Ping HuangMing-Jer LeeRuei-Chiang TsaiJian-Kai Cheng
    • Cheng-Ching YuHsiao-Ping HuangMing-Jer LeeRuei-Chiang TsaiJian-Kai Cheng
    • C07C67/08
    • C07C67/08B01D3/009Y02P20/127C07C69/14
    • 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.
    • 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。
    • 8. 发明授权
    • Separation process for methyl acetate hydrolysis and apparatus thereof
    • 乙酸甲酯水解分离方法及其设备
    • US07862783B2
    • 2011-01-04
    • US11699849
    • 2007-01-30
    • Hsiao-Ping HuangCheng-Ching YuMing-Jer LeeYu-De LinJian-Kai Cheng
    • Hsiao-Ping HuangCheng-Ching YuMing-Jer LeeYu-De LinJian-Kai Cheng
    • B01J8/02B01D3/00
    • B01D3/009B01D3/146C07C51/09C07C51/44Y02P20/127Y10S203/06C07C53/08
    • 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.
    • 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。
    • 9. 发明申请
    • Method for manufacturing esters from acid and system thereof
    • 从酸及其体系制备酯的方法
    • US20090198083A1
    • 2009-08-06
    • US12220940
    • 2008-07-30
    • Cheng-Ching YuHsiao-Ping HuangMing-Jer LeeRuei-Chiang TsaiJian-Kai Cheng
    • Cheng-Ching YuHsiao-Ping HuangMing-Jer LeeRuei-Chiang TsaiJian-Kai Cheng
    • C07C67/54B01J19/00
    • C07C67/08B01D3/009Y02P20/127C07C69/14
    • 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.
    • 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。