Vapor–liquid equilibria measurements of 1,1,1,2-tetrafluoroethane (HFC-134a)+2,3,3,3-tetrafluoroprop-1-ene (HFO-1234yf)+isobutane (HC-600a) ternary system

2016 ◽  
Vol 414 ◽  
pp. 111-116 ◽  
Author(s):  
Peng Hu ◽  
Wan-Bao Zhu ◽  
Long-Xiang Chen ◽  
Xu-Dong Cai ◽  
Ze-Shao Chen
Keyword(s):  
Ternary System ◽  
Hfc 134A ◽  
Vapor Liquid Equilibria ◽  
Vapor Liquid

Vapor-Liquid Equilibria for the Ternary System Ethyl Acetate-Acetonitrile-1-Octyl-3-Methylimidazolium Tetrafluoroborate

2013 ◽  
Vol 791-793 ◽  
pp. 141-144
Author(s):  
Xiu Min Shi ◽  
Min Wang
Keyword(s):  
Ionic Liquid ◽  
Ternary System ◽  
Ethyl Acetate ◽  
Mole Fraction ◽  
Salt Effect ◽  
Extractive Distillation ◽  
Relative Volatility ◽  
Azeotropic Point ◽  
Vapor Liquid Equilibria ◽  
Vapor Liquid

In order to research the possibility of separating the azeotrope of ethyl acetate + acetonitrile with ionic liquid as the extractant. Isobaric vapor-liquid equilibria for the ternary system ethyl acetate + acetonitrile + 1-octyl-3-methylimidazolium tetrafluoroborate ([OMIBF4) were measured at 101.32 kPa using a recirculation still. The results showed that the VLE of the ternary system was different from that of the binary system. The ionic liquid (IL) studied showed a slight crossover salt effect, which changed the relative volatility of ethyl acetate to acetonitrile and eliminated the azeotropic point when the mole fraction of IL in the liquid phase was greater than 0.05. Therefore, [OMIBF4 can be used as the extractant of extractive distillation for ethyl acetate + acetonitrile system, the suitable mole fraction of [OMIBF4 is about 10%.

Vapor−Liquid Equilibria for the 1,1,1,2-Tetrafluoroethane (HFC-134a) +n-Butane (R-600) System

2007 ◽  
Vol 52 (4) ◽  
pp. 1313-1318 ◽  
Author(s):  
Jong Sung Lim ◽  
Gimyeong Seong ◽  
Hee-Kook Roh ◽  
Hun-Soo Byun
Keyword(s):  
Hfc 134A ◽  
Vapor Liquid Equilibria ◽  
Vapor Liquid
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