Patents by Inventor Jian-Kai Cheng
Jian-Kai Cheng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8314266Abstract: 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.Type: GrantFiled: July 30, 2008Date of Patent: November 20, 2012Assignees: China Petrochemical Development Corporation, National Taiwan UniversityInventors: Cheng-Ching Yu, Hsiao-Ping Huang, Ming-Jer Lee, Ruei-Chiang Tsai, Jian-Kai Cheng
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Patent number: 7862783Abstract: 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.Type: GrantFiled: January 30, 2007Date of Patent: January 4, 2011Assignee: National Taiwan UniversityInventors: Hsiao-Ping Huang, Cheng-Ching Yu, Ming-Jer Lee, Yu-De Lin, Jian-Kai Cheng
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Publication number: 20100125145Abstract: 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.Type: ApplicationFiled: May 13, 2009Publication date: May 20, 2010Applicant: National Taiwan UniversityInventors: Cheng-Ching Yu, Hsiao-Ping Huang, Ming-Jer Lee, Yin-Heng Shen, Jian-Kai Cheng
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Publication number: 20090198083Abstract: 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.Type: ApplicationFiled: July 30, 2008Publication date: August 6, 2009Applicants: China Petrochemical Development Corporation, National Taiwan UniversityInventors: Cheng-Ching Yu, Hsiao-Ping Huang, Ming-Jer Lee, Ruei-Chiang Tsai, Jian-Kai Cheng
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Patent number: 7399881Abstract: 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.Type: GrantFiled: March 8, 2007Date of Patent: July 15, 2008Assignee: National Taiwan UniversityInventors: Hsiao-Ping Huang, Cheng-Ching Yu, Ming-Jer Lee, Jyun-Hong Chen, Jian-Kai Cheng
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Publication number: 20080161595Abstract: 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.Type: ApplicationFiled: March 8, 2007Publication date: July 3, 2008Applicant: National Taiwan UniversityInventors: Hsiao-Ping Huang, Cheng-Ching Yu, Ming-Jer Lee, Jyun-Hong Chen, Jian-Kai Cheng
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Publication number: 20080128262Abstract: 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.Type: ApplicationFiled: January 30, 2007Publication date: June 5, 2008Applicant: National Taiwan UniversityInventors: Hsiao-Ping Huang, Cheng-Ching Yu, Ming-Jer Lee, Yu-De Lin, Jian-Kai Cheng