Effects of imidazolium-based ionic liquids on the isobaric vapor–liquid equilibria of methanol+dimethyl carbonate azeotropic systems

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	Effects of imidazolium-based ionic liquids on the isobaric vapor–liquid equilibria of methanol+dimethyl carbonate azeotropic systems
	Songsong Chen 1; Li Dong 1; Junping Zhang 1; Weiguo Cheng 1; Feng Huo 1; Qian Su 1; Wei Hua 4
	2020
Source Publication	中国化学工程学报:英文版
ISSN	1004-9541
Volume	000 Issue:003 Pages:766
Abstract	The 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)sulfonylimide(BmimTf2N),MeOH+DMC+1-ethyl-3-methyl-imidazolium bis(trifluoromethyl)sulfonylimide(EmimTf2N),and MeOH+DMC+1-ethyl-3-methylimidazolium hexafluorophosphate(EmimPF6)were measured at 101.3 kPa.The mole fraction of IL was varied from0.05 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,andBmimTf2 Nshowed a much more excellent performance on the activity coefficient of MeOH.The interaction energies of system components were calculated using Gaussian program,and the effects of cation and anion on the separation coefficient of the azeotropic system were discussed.
Keyword	Vapor liquid equilibria Ionic liquid Azeotrope Separation Interaction energy
Language	英语
Document Type	期刊论文
Identifier	http://ir.ipe.ac.cn/handle/122111/44531
Collection	中国科学院过程工程研究所
Affiliation	1.Beijing Key Laboratory of Ionic Liquids Clean Process,CAS Key Laboratory of Green Process and Engineering,State Key Laboratory of Multiphase Complex Systems,Institute of Process Engineering 2.中国科学院 3.Dalian National Laboratory for Clean Energy 4.SINOPEC,Beijing Yanshan Company
Recommended Citation GB/T 7714	Songsong Chen,Li Dong,Junping Zhang,等. Effects of imidazolium-based ionic liquids on the isobaric vapor–liquid equilibria of methanol+dimethyl carbonate azeotropic systems[J]. 中国化学工程学报:英文版,2020,000(003):766.
APA	Songsong Chen.,Li Dong.,Junping Zhang.,Weiguo Cheng.,Feng Huo.,...&Wei Hua.(2020).Effects of imidazolium-based ionic liquids on the isobaric vapor–liquid equilibria of methanol+dimethyl carbonate azeotropic systems.中国化学工程学报:英文版,000(003),766.
MLA	Songsong Chen,et al."Effects of imidazolium-based ionic liquids on the isobaric vapor–liquid equilibria of methanol+dimethyl carbonate azeotropic systems".中国化学工程学报:英文版 000.003(2020):766.

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