SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2019, Vol. 27 ›› Issue (12): 2948-2952.DOI: 10.1016/j.cjche.2019.03.015

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Aminolysis of ethyl acetate in continuous flow and its reaction kinetics

Tao Shen1, Bo Ouyang1,2, Chao Qian1,3, Xinzhi Chen1   

  1. 1 Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China;
    2 Zhejiang Garden Biochemical High-Tech Co., LTD, Dongyan 322121, China;
    3 Research Institute of Zhejiang University-Quzhou, Quzhou 324000, China
  • 收稿日期:2019-01-04 修回日期:2019-03-18 出版日期:2019-12-28 发布日期:2020-03-17
  • 通讯作者: Chao Qian
  • 基金资助:
    The authors are grateful for the financial support from the National Natural Science Foundation of China (21476194) and the National Key Research and Development Program of China (2016YFB0301800).

Aminolysis of ethyl acetate in continuous flow and its reaction kinetics

Tao Shen1, Bo Ouyang1,2, Chao Qian1,3, Xinzhi Chen1   

  1. 1 Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China;
    2 Zhejiang Garden Biochemical High-Tech Co., LTD, Dongyan 322121, China;
    3 Research Institute of Zhejiang University-Quzhou, Quzhou 324000, China
  • Received:2019-01-04 Revised:2019-03-18 Online:2019-12-28 Published:2020-03-17
  • Contact: Chao Qian
  • Supported by:
    The authors are grateful for the financial support from the National Natural Science Foundation of China (21476194) and the National Key Research and Development Program of China (2016YFB0301800).

摘要: The aminolysis of ethyl acetate was promoted significantly via continuous reaction in a tubular reactor. N-propylacetamide was thus synthesized without presence of solvent and catalyst. The optimum conditions were obtained as follows:the reaction temperature is 218℃, the reaction pressure is 3.5 MPa, the molar ratio (ethyl acetate:N-propylamine) is 1:1, and the residence time is 350 min. Accordingly, the conversion of ethyl acetate is up to 94.8%. Furthermore, the kinetics of the rapid reaction stage (when the conversion of ethyl acetate is 20%-80%) can be expressed as lnk--4629:44 1/T + 2:1366, and the apparent activation energy is Ea=38489 J·mol-1.

关键词: Tubular reactor, Reaction kinetics, Ethyl acetate, Aminolysis

Abstract: The aminolysis of ethyl acetate was promoted significantly via continuous reaction in a tubular reactor. N-propylacetamide was thus synthesized without presence of solvent and catalyst. The optimum conditions were obtained as follows:the reaction temperature is 218℃, the reaction pressure is 3.5 MPa, the molar ratio (ethyl acetate:N-propylamine) is 1:1, and the residence time is 350 min. Accordingly, the conversion of ethyl acetate is up to 94.8%. Furthermore, the kinetics of the rapid reaction stage (when the conversion of ethyl acetate is 20%-80%) can be expressed as lnk--4629:44 1/T + 2:1366, and the apparent activation energy is Ea=38489 J·mol-1.

Key words: Tubular reactor, Reaction kinetics, Ethyl acetate, Aminolysis