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 (6): 1307-1323.DOI: 10.1016/j.cjche.2018.10.007

• Special Issue: Separation Process Intensification of Chemical Engineering • 上一篇    下一篇

Process intensification and energy saving of reactive distillation for production of ester compounds

Chunli Li, Cong Duan, Jing Fang, Hongshi Li   

  1. School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China;National-Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization, Tianjin 300130, China
  • 收稿日期:2018-07-25 修回日期:2018-09-20 出版日期:2019-06-28 发布日期:2019-08-19
  • 通讯作者: Chunli Li
  • 基金资助:
    Supported by the National Key Research and Development Program of China (2017YFB0602500) and the Basic Research Program of Hebei Province (16964502D).

Process intensification and energy saving of reactive distillation for production of ester compounds

Chunli Li, Cong Duan, Jing Fang, Hongshi Li   

  1. School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China;National-Local Joint Engineering Laboratory for Energy Conservation of Chemical Process Integration and Resources Utilization, Tianjin 300130, China
  • Received:2018-07-25 Revised:2018-09-20 Online:2019-06-28 Published:2019-08-19
  • Contact: Chunli Li
  • Supported by:
    Supported by the National Key Research and Development Program of China (2017YFB0602500) and the Basic Research Program of Hebei Province (16964502D).

摘要: Reactive distillation (RD) process is an innovative hybrid process combining reaction with distillation, which has recently come into sharp focus as a successful case of process intensification. Considered as the most representative case of process intensification, it has been applied for many productions, especially for production of ester compounds. However, such problems existing in the RD system for ester productions are still hard to solve, as the removal of the water which comes from the esterification, and the separation of the azeotropes of ester-alcohol (-water). Many methods have been studying on the process to solve the problems resulting in further intensification and energy saving. In this paper, azeotropic-reactive distillation or entrainer enhanced reactive distillation (ERD) process, reactive extractive distillation (RED) process, the method of co-production in RD process, pressure-swing reactive distillation (PSRD) process, reactive distillation-pervaporation coupled process (RD-PV), are introduced to solve the problems above, so the product(s) can be separated efficiently and the chemical equilibrium can be shifted. Dividing-wall column (DWC) structure and novel methods of loading catalyst are also introduced as the measures to intensify the process and save energy.

关键词: Reactive distillation, Process intensification, Process coupling, Thermal coupling

Abstract: Reactive distillation (RD) process is an innovative hybrid process combining reaction with distillation, which has recently come into sharp focus as a successful case of process intensification. Considered as the most representative case of process intensification, it has been applied for many productions, especially for production of ester compounds. However, such problems existing in the RD system for ester productions are still hard to solve, as the removal of the water which comes from the esterification, and the separation of the azeotropes of ester-alcohol (-water). Many methods have been studying on the process to solve the problems resulting in further intensification and energy saving. In this paper, azeotropic-reactive distillation or entrainer enhanced reactive distillation (ERD) process, reactive extractive distillation (RED) process, the method of co-production in RD process, pressure-swing reactive distillation (PSRD) process, reactive distillation-pervaporation coupled process (RD-PV), are introduced to solve the problems above, so the product(s) can be separated efficiently and the chemical equilibrium can be shifted. Dividing-wall column (DWC) structure and novel methods of loading catalyst are also introduced as the measures to intensify the process and save energy.

Key words: Reactive distillation, Process intensification, Process coupling, Thermal coupling