High-pressure phase behaviors of CO2+1-propanol+ionic liquid ternary systems

doi:10.1016/j.supflu.2012.05.015

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	High-pressure phase behaviors of CO2+1-propanol+ionic liquid ternary systems
	Yang, Dezhong; Hou, Minqiang; Ning, Hui; Liu, Yuanhui; Han, Buxing
刊名	JOURNAL OF SUPERCRITICAL FLUIDS
	2012-09-01
卷号	69 页码:108-112
关键词	Ionic Liquid Co2 1-propanol High-pressure Phase Behavior
ISSN号	0896-8446
DOI	10.1016/j.supflu.2012.05.015
英文摘要	In this work, the vapor liquid equilibria for CO2 + 1-propanol + 1-butyl-3-methylimidazolium trifluo-romethanesulfonate ([Bmim][Tfo]) and CO2 + 1-propanol + 1-butyl-3-methylimidazolium terafluoroborate ([Bmim][BF4]) systems were measured at 318.15K and at 9.0 MPa, 13.0 MPa, and 17.0 MPa. It was demonstrated that the anions of the ILs affected the phase behaviors of the ternary systems considerably. CO2 + 1-propanol + [Bmim][Tfo] system has smaller two-phase region than CO2 + 1-propanol + [Bmim][BF4] system at all the pressures. Increase of pressure resulted in decrease of the two-phase regions. The solvent power of supercritical carbon dioxide (scCO(2))+ 1-propanol mixture for the ILs increased with increasing 1-propanol concentration, and the solubility of the ILs in the vapor phases was considerable as the mole fraction of 1-propanol in the vapor phase was large enough. The distribution coefficient of 1-propanol in CO2 + 1-propanol + [Bmim][Tfo] is smaller than that in CO2 + 1-propanol + [Bmim][BF4]. (C) 2012 Elsevier B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000307414100014
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/47355]
专题	中国科学院化学研究所
通讯作者	Han, Buxing
作者单位	Chinese Acad Sci, Beijing Natl Lab Mol Sci, CAS Key Lab Colloid & Interface & Thermodynam, Inst Chem, Beijing 100864, Peoples R China
推荐引用方式 GB/T 7714	Yang, Dezhong,Hou, Minqiang,Ning, Hui,et al. High-pressure phase behaviors of CO2+1-propanol+ionic liquid ternary systems[J]. JOURNAL OF SUPERCRITICAL FLUIDS,2012,69:108-112.
APA	Yang, Dezhong,Hou, Minqiang,Ning, Hui,Liu, Yuanhui,&Han, Buxing.(2012).High-pressure phase behaviors of CO2+1-propanol+ionic liquid ternary systems.JOURNAL OF SUPERCRITICAL FLUIDS,69,108-112.
MLA	Yang, Dezhong,et al."High-pressure phase behaviors of CO2+1-propanol+ionic liquid ternary systems".JOURNAL OF SUPERCRITICAL FLUIDS 69(2012):108-112.