SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2022, Vol. 50 ›› Issue (10): 247-253.DOI: 10.1016/j.cjche.2022.05.019

• Catalysis, Kinetics and Reaction Engineering • 上一篇    下一篇

Kinetic study of CO2 fixation into propylene carbonate with water as efficient medium using microreaction system

Yuxin Wu, Zhuo Chen, Xiaohui Zhang, Jian Chen, Yundong Wang, Jianhong Xu   

  1. The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
  • 收稿日期:2022-02-20 修回日期:2022-05-10 出版日期:2022-10-28 发布日期:2023-01-04
  • 通讯作者: Zhuo Chen,E-mail:chenz2020@tsinghua.edu.cn;Jianhong Xu,E-mail:xujianhong@tsinghua.edu.cn
  • 基金资助:
    The authors gratefully acknowledge the supports of the National Natural Science Foundation of China (22025801, 22108147), Shui Mu Xue Zhe of Tsinghua University (2020SM056), China Postdoctoral Science Foundation (2021M691761) for this work.

Kinetic study of CO2 fixation into propylene carbonate with water as efficient medium using microreaction system

Yuxin Wu, Zhuo Chen, Xiaohui Zhang, Jian Chen, Yundong Wang, Jianhong Xu   

  1. The State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
  • Received:2022-02-20 Revised:2022-05-10 Online:2022-10-28 Published:2023-01-04
  • Contact: Zhuo Chen,E-mail:chenz2020@tsinghua.edu.cn;Jianhong Xu,E-mail:xujianhong@tsinghua.edu.cn
  • Supported by:
    The authors gratefully acknowledge the supports of the National Natural Science Foundation of China (22025801, 22108147), Shui Mu Xue Zhe of Tsinghua University (2020SM056), China Postdoctoral Science Foundation (2021M691761) for this work.

摘要: Carbon dioxide (CO2) utilization and fixation have become one of the most important research areas nowadays due to the increase of global greenhouse effect. Cyclic carbonate, which is widely used in various fields, can be synthesized by fixation of CO2 with epoxide in industry. Moreover, the synthesis of cyclic carbonate is a 100% atom economical reaction, which makes it eco-friendly and promising. To enhance the reaction efficiency and safety, a microreaction system was used as the platform for cycloaddition reaction. In this work, tetrabutylammonium bromide (TBAB) was chosen as catalyst, and propylene oxide (PO) as a mode substrate. Interestingly, the addition of water can increase the propylene carbonate (PC) yield and decrease the activation energy considerably, proving water as catalyst promoter for PC synthesis. PC yield and selectivity could reach 91.6% and 99.8%, respectively. The Influence factors and kinetic equation for CO2 cycloaddition were obtained as well.

关键词: Carbon dioxide, Microreactor, Kinetics, Ionic liquids

Abstract: Carbon dioxide (CO2) utilization and fixation have become one of the most important research areas nowadays due to the increase of global greenhouse effect. Cyclic carbonate, which is widely used in various fields, can be synthesized by fixation of CO2 with epoxide in industry. Moreover, the synthesis of cyclic carbonate is a 100% atom economical reaction, which makes it eco-friendly and promising. To enhance the reaction efficiency and safety, a microreaction system was used as the platform for cycloaddition reaction. In this work, tetrabutylammonium bromide (TBAB) was chosen as catalyst, and propylene oxide (PO) as a mode substrate. Interestingly, the addition of water can increase the propylene carbonate (PC) yield and decrease the activation energy considerably, proving water as catalyst promoter for PC synthesis. PC yield and selectivity could reach 91.6% and 99.8%, respectively. The Influence factors and kinetic equation for CO2 cycloaddition were obtained as well.

Key words: Carbon dioxide, Microreactor, Kinetics, Ionic liquids