scholarly journals Effect of Ionic Liquids on the Isobaric Vapor-Liquid Equilibrium Behavior of Acetone-Chloroform

2018 ◽  
Vol 8 (9) ◽  
pp. 1519 ◽  
Author(s):  
Qinglin Gao ◽  
Zongchang Zhao ◽  
Peng Jia ◽  
Xiaodong Zhang
Keyword(s):  
Ionic Liquids ◽  
Ion Pairs ◽  
Interaction Energies ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Equilibrium Behavior ◽  
Azeotropic Point ◽  
Vle Data ◽  
Molecular Solvents ◽  
Vapor Liquid

Isobaric vapor-liquid equilibrium (VLE) data of the ternary system acetone + chloroform + 1,3-dimethylimidazolium dimethylphosphate ([MMIM][DMP]) or 1-ethyl-3-methylimidazolium diethylphosphate ([EMIM][DEP]) were obtained at 101.3 kPa. Results indicated that the addition of [MMIM][DMP] or [EMIM][DEP] could eliminate the azeotropic point of the binary system of acetone + chloroform when the mole fraction of ionic liquids (ILs) was above 0.15. Besides, the experimental data could be well correlated by the nonrandom two-liquid (NRTL) model. The structures as well as interactions between molecular solvents (acetone, chloroform) and the ion pairs ([MMIM][DMP], [EMIM][DEP]) were studied by quantum chemical calculations. The result indicated that the interaction energies (ΔE) follow the order of ΔE(acetone + [EMIM][DEP]) > ΔE(acetone + [MMIM][DMP]) > ΔE(chloroform + [EMIM][DEP]) ≈ ΔE(chloroform + [MMIM][DMP]), and chloroform had stronger affinity to ionic liquids than acetone.

Effect of Ionic Liquids on the Isobaric Vapor–Liquid Equilibrium Behavior of Methanol–Methyl Ethyl Ketone

2013 ◽  
Vol 58 (5) ◽  
pp. 1133-1140 ◽  
Author(s):  
Qunsheng Li ◽  
Xueting Sun ◽  
Ling Cao ◽  
Baohua Wang ◽  
Zhaowen Chen ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Methyl Ethyl Ketone ◽  
Methyl Ethyl ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Equilibrium Behavior ◽  
Vapor Liquid

Effect of ionic liquids on (vapor+liquid) equilibrium behavior of (water+2-methyl-2-propanol)

2009 ◽  
Vol 41 (1) ◽  
pp. 138-143 ◽  
Author(s):  
Lianzhong Zhang ◽  
Bingbang Qiao ◽  
Yun Ge ◽  
Dongshun Deng ◽  
Jianbing Ji
Keyword(s):  
Ionic Liquids ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Equilibrium Behavior ◽  
Vapor Liquid

scholarly journals Measurement and Correlation of Isobaric Vapor-Liquid Equilibrium Data for Water + 2-Azido-N,N-Dimethylethanamine System at 4 kPa

2021 ◽  
Vol 15 (2) ◽  
pp. 226-232
Author(s):  
Hosein Rouhandeh ◽  
◽  
Shahram Ghanbari Pakdehi ◽  
Keyword(s):  
Standard Deviation ◽  
Activity Coefficient ◽  
Liquid Equilibrium ◽  
Absolute Deviation ◽  
Vapor Liquid Equilibrium ◽  
Azeotropic Point ◽  
Activity Coefficient Model ◽  
Equilibrium Data ◽  
Vle Data ◽  
Vapor Liquid

Isobaric vapor-liquid equilibrium (VLE) data for binary system of water + 2-azido-N,N-dimethylethanamine (DMAZ) was measured at 4 kPa. The results showed an azeotropic point at x1 = 0.985 and T = 302.17 K. The data was correlated with nonrandom two-liquid (NRTL), Wilson and universal quasi-chemical activity coefficient (UNIQUAC) models for the liquid phase. A comparison of the model performances was made using of the criterion of the average absolute deviation, standard deviation and mean standard deviation in boiling-point temperature. The results indicated that the NRTL activity coefficient model satisfactorily correlated the VLE data.

Effect of ionic liquids on the isobaric vapor–liquid equilibrium behavior of dichloromethane + methanol at 101.3 kPa

2017 ◽  
Vol 243 ◽  
pp. 699-705 ◽  
Author(s):  
Chengjingyan Luo ◽  
Kun Yue ◽  
Ruiqi Qiao ◽  
Chunjiang Li ◽  
Jun Zhou ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Equilibrium Behavior ◽  
Vapor Liquid
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