Separation of azeotropic mixture isopropyl alcohol + ethyl acetate by extractive distillation: Vapor-liquid equilibrium measurements and interaction exploration

2020 ◽  
Vol 507 ◽  
pp. 112428 ◽  
Author(s):  
Yi Zhang ◽  
Xin Xu ◽  
Hui Yang ◽  
Jun Gao ◽  
Dongmei Xu ◽  
...  
Keyword(s):  
Ethyl Acetate ◽  
Isopropyl Alcohol ◽  
Extractive Distillation ◽  
Azeotropic Mixture ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Alcohol Ethyl ◽  
Vapor Liquid

Isobaric Vapor-Liquid Equilibrium for Ethyl Acetate-Isopropanol-1-Octyl-3-Methylimidazolium Tetrafluoroborate

2013 ◽  
Vol 641-642 ◽  
pp. 160-164 ◽  
Author(s):  
Xiu Min Shi ◽  
Min Wang
Keyword(s):  
Experimental Data ◽  
Ethyl Acetate ◽  
Mole Fraction ◽  
Extractive Distillation ◽  
Liquid Equilibrium ◽  
Salting Out ◽  
Vapor Liquid Equilibrium ◽  
Equilibrium Data ◽  
Extraction Agent ◽  
Vapor Liquid

Abstract: In order to study the possibility of separating ethyl acetate and isopropanol by extractive distillation with ILs as an entrainer. Isobaric vapor-liquid equilibrium data for ethyl acetate + isopropanol+1-octyl-3-methylimidazolium tetrafluoroborate ([OMIM]BF4) ternary system at 101.32 kPa were determined using a recirculating still. The results showed that the ionic liquid (IL) studied produced a notable salting-out effect, which enhanced the relative volatility of ethyl acetate to isopropanol and eliminated the azeotrope when the mole fraction of IL in the liquid phase was greater than 0.10. Therefore, [OMIM]BF4 can be used as the extraction agent of extractive distillation for ethyl acetate + isopropanol systerm, the suitable mole fraction of [OMIM]BF4 is about 20%. The experimental data were correlated with the NRTL model, the correlated results agreed well with the experimental data.

Aspen Plus Simulation of Ultrasound Assisted Distillation for Separating Azeotropic Mixture

2015 ◽  
Vol 1113 ◽  
pp. 710-714
Author(s):  
Taha Mahdi ◽  
Arshad Ahmad ◽  
Adnan Ripin ◽  
Mohamed Mahmoud Nasef ◽  
Olagoke Oladokun
Keyword(s):  
Ethyl Acetate ◽  
Aspen Plus ◽  
Azeotropic Mixture ◽  
Distillation Process ◽  
Equilibrium System ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Flash Distillation ◽  
Aspen Custom Modeler ◽  
Vapor Liquid

Earlier works have proved the potentials of altering the vapor liquid equilibrium of azeotropic mixture by sonication phenomena. In this work a mathematical model of a single stage vapor-liquid equilibrium system developed in Aspen Custom Modeler is exported to Aspen Plus to represent one stage of ultrasonic flash distillation (USF). The USF modules are connected serially to mimic a distillation process. As a case study, the separation of ethanol-ethyl acetate mixture is considered. The final targeted composition of 99 mole % of ethyl acetate was achieved when 27 USF modules were used despite the fact that the mixture form azeotrope at 55 mole % ethyl acetate. The results reinforced the anticipated potentials of sonication phenomena in intensifying distillation process to overcome azeotropes, and provide useful insights for the development of a pilot-scaled facility that is currently under development.

Salts Effect on Isobaric Vapor–Liquid Equilibrium for the Azeotropic Mixture 2-Propanol + Water

2019 ◽  
Vol 64 (6) ◽  
pp. 2329-2340
Author(s):  
Liuyi Yin ◽  
Yongbo Li ◽  
Hui Zhao ◽  
Quan-liang Li ◽  
Jun Wang ◽  
...  
Keyword(s):  
Azeotropic Mixture ◽  
Liquid Equilibrium ◽  
Vapor Liquid Equilibrium ◽  
Vapor Liquid
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