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

	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
刊名	中国化学工程学报:英文版
	2020
卷号	000 期号:003 页码:766
关键词	Vapor liquid equilibria Ionic liquid Azeotrope Separation Interaction energy
ISSN号	1004-9541
英文摘要	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.
语种	英语
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/44530]
专题	中国科学院过程工程研究所
作者单位	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
推荐引用方式 GB/T 7714	Songsong Chen,Li Dong,Junping Zhang,et al. 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.