Liquid-holdup regions research of novel reactive distillation column for C5 fraction separation

Liang Guo; Tiefeng Wang; Dongfeng Li; Jinfu Wang

doi:10.1016/j.cjche.2016.09.010

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Liquid-holdup regions research of novel reactive distillation column for C5 fraction separation

Separation Science and Engineering | Updated：2026-01-06

- Liquid-holdup regions research of novel reactive distillation column for C5 fraction separation
- Liquid-holdup regions research of novel reactive distillation column for C5 fraction separation
- 中国化学工程学报（英文版） 2017年25卷第4期页码：433-441
- Affiliations：
  
  1. Beijing Key Laboratory of Green Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University.,Beijing,China,100084
  2. Beijing Research Institute of Chemical Industry,Beijing,China,100013
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2016.09.010
  中图分类号：
- 纸质出版：2017
- Accepted：
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Liang Guo, Tiefeng Wang, Dongfeng Li, 等. Liquid-holdup regions research of novel reactive distillation column for C5 fraction separation[J]. 中国化学工程学报（英文版）, 2017,25(4):433-441.

Liang Guo, Tiefeng Wang, Dongfeng Li, Jinfu Wang. Liquid-holdup regions research of novel reactive distillation column for C5 fraction separation[J]. , 2017, 25(4): 433-441.
Liang Guo, Tiefeng Wang, Dongfeng Li, 等. Liquid-holdup regions research of novel reactive distillation column for C5 fraction separation[J]. 中国化学工程学报（英文版）, 2017,25(4):433-441. DOI： 10.1016/j.cjche.2016.09.010.

Liang Guo, Tiefeng Wang, Dongfeng Li, Jinfu Wang. Liquid-holdup regions research of novel reactive distillation column for C5 fraction separation[J]. , 2017, 25(4): 433-441. DOI： 10.1016/j.cjche.2016.09.010.

摘要

Abstract

Recent advances in technologies of reactive distillation (RD) offer various design concepts for chemical processes.For separation of cracking C5 fraction

one of the main challenges is improving the conversion of cyclopentadiene (CPD) and the recovery of isoprene (IP).In the current work

a novel reactive distillation column with several liquid-holdup regions was designed

since it allows long residence time and provides flexibility for narrowing the efficiency gap between reaction and distillation.By use of Aspen Plus

a corresponding mathematic model was established and verified to be accurate.Following that

comprehensive studies were carried out for the design of liquid-holdup regions position.Details and principles about the separation performance with the liquid-holdup regions were revealed and optimized parameters were determined with 100 theoretical plates

feed position of 35th plate

and four liquid-holdup regions at 25th

60th

75th and 90th plate.The designed RD column could well meet the technical requirement

and influence of other important factors including residence time

operating pressure and reflux ratio was further investigated.

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