Process improvement for three-column extractive distillation by feed split

被引：15
作者：
Duan, Cong [1 ]
Li, Chunli [1 ]
机构：
[1] Hebei Univ Technol, Sch Chem Engn & Technol, Natl Local Joint Engn Lab Energy Conservat Chem P, Tianjin 300130, Peoples R China
来源：
SEPARATION AND PURIFICATION TECHNOLOGY | 2022年 / 297卷
基金：
中国国家自然科学基金;
关键词：
Extractive distillation; Azeotropic component; Feed split; Energy saving; COMBINING PRECONCENTRATION COLUMN; TRANSITION-TEMPERATURE MIXTURES; DIVIDING-WALL COLUMN; ETHYL-ACETATE; SEPARATION; DESIGN; WATER; OPTIMIZATION; ENTRAINER; RECOVERY;
D O I：
10.1016/j.seppur.2022.121467
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A three-column extractive distillation process may often be used when separating azeotropic components at a dilute feed condition. A feed-split method is innovatively proposed to save energy for this process. The method is to split the fresh feed stream into two streams, one for the pre-concentrator, and the other for the extractive distillation column. The applicability of this method is initially estimated. Four systems are used as main case studies including acetonitrile/water with ethylene glycol as the solvent, acetone/methanol with dimethyl sulfoxide as the solvent, n-propanol/water with N-methylpyrrolidone as the solvent and ethyl acetate/ethanol with furfural as the solvent. The results show that most three-column extractive distillation process can save energy by feed split. This method can be used alone or used for other energy-saving methods to save further energy.
引用
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页数：13
相关论文
共 47 条
[1]   Design/optimization of energy-saving extractive distillation process by combining preconcentration column and extractive distillation column [J].
An, Yi ;
Li, Weisong ;
Li, Ye ;
Huang, Shanyuan ;
Ma, Jian ;
Shen, Changlin ;
Xu, Chunjian .
CHEMICAL ENGINEERING SCIENCE, 2015, 135 :166-178
[2]   Energy-Saving Exploration of Mixed Solvent Extractive Distillation Combined with Thermal Coupling or Heat Pump Technology for the Separation of an Azeotrope Containing Low-Carbon Alcohol [J].
Cui, Peizhe ;
Zhao, Fei ;
Yao, Dong ;
Ma, Zhaoyuan ;
Li, Shuhua ;
Li, Xin ;
Wang, Lei ;
Zhu, Zhaoyou ;
Wang, Yinglong ;
Ma, Yixin ;
Xu, Dongmei .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2020, 59 (29) :13204-13219
[3]   Novel energy-saving methods to improve the three-column extractive distillation process for separating ethyl acetate and ethanol using furfural [J].
Duan, Cong ;
Li, Chunli .
SEPARATION AND PURIFICATION TECHNOLOGY, 2021, 272
[4]   Optimal Synthesis of Distillation Systems for Bioethanol Separation. Part 1: Extractive Distillation with Simple Columns [J].
Errico, Massimiliano ;
Rong, Ben-Guang ;
Tola, Giuseppe ;
Spano, Maurizio .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2013, 52 (04) :1612-1619
[5]   Review of extractive distillation. Process design, operation, optimization and control [J].
Gerbaud, Vincent ;
Rodriguez-Donis, Ivonne ;
Hegely, Laszlo ;
Lang, Peter ;
Denes, Ferenc ;
You, XinQiang .
CHEMICAL ENGINEERING RESEARCH & DESIGN, 2019, 141 :229-271
[6]   Extractive Distillation of Acetone/Methanol Mixture Using Water as Entrainer [J].
Gil, Ivan D. ;
Botia, Diana C. ;
Ortiz, Pablo ;
Sanchez, Oscar F. .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2009, 48 (10) :4858-4865
[7]   Combining the preconcentration column and recovery column for the extractive distillation of ethanol dehydration with low transition temperature mixtures as entrainers [J].
Han Dongmin ;
Chen Yanhong .
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, 2018, 131 :203-214
[8]   Process Assessment of Distillation Using Intermediate Entrainer: Conventional Sequences to the Corresponding Dividing-Wall Columns [J].
Huang, Shanyuan ;
Li, Weisong ;
Li, Ye ;
Ma, Jian ;
Shen, Changlin ;
Xu, Chunjian .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2016, 55 (06) :1655-1666
[9]   Heat integrated distillation operation [J].
Jana, Amiya K. .
APPLIED ENERGY, 2010, 87 (05) :1477-1494
[10]   Optimal Economic Design of an Extractive Distillation Process for Bioethanol Dehydration [J].
Kiss, Anton A. ;
Ignat, Radu M. .
ENERGY TECHNOLOGY, 2013, 1 (2-3) :166-170
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