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Effects of imidazolium-based ionic liquids on the isobaric vapor-liquid equilibria of methanol plus dimethyl carbonate azeotropic systems
Chen, Songsong1,2; Dong, Li1,4; Zhang, Junping1,2; Cheng, Weiguo1; Huo, Feng1,4; Su, Qian1,2; Hua, Wei3
2020-03-01
Source PublicationCHINESE JOURNAL OF CHEMICAL ENGINEERING
ISSN1004-9541
Volume28Issue:3Pages:766-776
AbstractThe separation of methanol (MeOH) and dimethyl carbonate (DMC) is important but difficult due to the formation of an azeotropic mixture. In this work, isobaric vapor-liquid equilibrium (VLE) data for the ternary systems containing different imidazolium-based ionic liquids (ILs), i.e. MeOH + DMC + 1-butyl-3-methy-limidazolium bis[(trifluoromethyl)sulfonyl]imide ([Bmim][Tf2N]), MeOH + DMC + 1- ethyl-3-methyl-imidazolium bis [( trifluoromethyl)sulfonyl]imide ([Emim][Tf2N]), and MeOH + DMC + 1-ethyl-3-methylimidazolium hexafluorophosphate ([Emim][PF6])) were measured at 101.3 kPa. The mole fraction of IL was varied from 0.05 to 0.20. The experimental data were correlated with the NRTL and Wilson equations, respectively. The results show that imidazolium-based ILs were beneficial to improve the relative volatility of MeOH to DMC, and [Bmim][Tf2N] showed a much more excellent performance on the activity coefficient of MeOH. The interaction energies of system componentswere calculated using Gaussian program, and the effects of cation and anion on the separation coefficient of the azeotropic system were discussed. (C) 2019 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights reserved.
KeywordVapor liquid equilibria Ionic liquid Azeotrope Separation Interaction energy
DOI10.1016/j.cjche.2019.12.001
Language英语
WOS KeywordEXTRACTIVE DISTILLATION ; REACTIVE-DISTILLATION ; ETHYLENE CARBONATE ; HYDROGEN-BOND ; WATER ; SEPARATION ; ENTRAINER ; BEHAVIOR ; TRANSESTERIFICATION ; SELECTION
Funding ProjectNational Key R&D Program of China[2018YFB0605804] ; National Natural Science Foundation of China[21606237] ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences[XDA 21030500] ; Fund of State Key Laboratory of Multiphase Complex Systems, IPE, CAS[MPCS-2019-A-02] ; DNL Cooperation Fund, CAS[DNL180202]
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China ; Transformational Technologies for Clean Energy and Demonstration, Strategic Priority Research Program of the Chinese Academy of Sciences ; Fund of State Key Laboratory of Multiphase Complex Systems, IPE, CAS ; DNL Cooperation Fund, CAS
WOS IDWOS:000538776500014
PublisherCHEMICAL INDUSTRY PRESS CO LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/41090
Collection中国科学院过程工程研究所
Corresponding AuthorDong, Li
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, CAS Key Lab Green Proc & Engn,State Key Lab Multi, Beijing 100090, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
3.SINOPEC, Beijing Yanshan Co, Beijing 102500, Peoples R China
4.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Chen, Songsong,Dong, Li,Zhang, Junping,et al. Effects of imidazolium-based ionic liquids on the isobaric vapor-liquid equilibria of methanol plus dimethyl carbonate azeotropic systems[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2020,28(3):766-776.
APA Chen, Songsong.,Dong, Li.,Zhang, Junping.,Cheng, Weiguo.,Huo, Feng.,...&Hua, Wei.(2020).Effects of imidazolium-based ionic liquids on the isobaric vapor-liquid equilibria of methanol plus dimethyl carbonate azeotropic systems.CHINESE JOURNAL OF CHEMICAL ENGINEERING,28(3),766-776.
MLA Chen, Songsong,et al."Effects of imidazolium-based ionic liquids on the isobaric vapor-liquid equilibria of methanol plus dimethyl carbonate azeotropic systems".CHINESE JOURNAL OF CHEMICAL ENGINEERING 28.3(2020):766-776.
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