Separation of the ethanol/water azeotropic mixture using ionic liquids and deep eutectic solvents

Gjineci, Nansi; Boli, Elenitsa; Tzani, Andromachi; Detsi, Anastasia; Voutsas, Epaminondas

doi:10.1016/j.fluid.2015.07.048

Cited by 72 publications

(41 citation statements)

References 23 publications

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“…synthesized two ethanolamine‐based ILs and two ChCl‐based DESs and evaluated them as entrainers for the separation of an ethanol/water azeotropic mixture. DESs showed better separation and biodegradation capacity than ILs . In the next year, Wang et al.…”

Section: Application Of Deep Eutectic Solvents In Separation and Extrmentioning

confidence: 99%

“…On the other hand, Gjineci et al synthesized two ethanolamine-based ILs and two ChCl-based DESs and evaluated them as entrainers for the separation of an ethanol/water azeotropic mixture. DESs showed better separation and biodegradation capacity than ILs [82]. In the next year, Wang et al reported nitro-substituted tris(indolyl)methane-modified silica in ChCl/U(1:2) for the SPE of organic acids.…”

Section: Application In Other Samplesmentioning

confidence: 99%

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Development of deep eutectic solvents applied in extraction and separation

Row

2016

J of Separation Science

362

158

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Deep eutectic solvents, as an alternative to ionic liquids, have greener credentials than ionic liquids, and have attracted considerable attention in related chemical research. Deep eutectic solvents have attracted increasing attention in chemistry for the extraction and separation of various target compounds from natural products. This review highlights the preparation of deep eutectic solvents, unique properties of deep eutectic solvents, and synthesis of deep-eutectic-solvent-based materials. On the other hand, application in the extraction and separation of deep eutectic solvents is also included in this report. In this paper, the available data and references in this field are reviewed to summarize the applications and developments of deep eutectic solvents. Based on the development of deep eutectic solvents, an exploitation of new deep eutectic solvents and deep eutectic solvents-based materials is expected to diversify into extraction and separation.

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Section: Application Of Deep Eutectic Solvents In Separation and Extrmentioning

confidence: 99%

Section: Application In Other Samplesmentioning

confidence: 99%

Development of deep eutectic solvents applied in extraction and separation

Row

2016

J of Separation Science

362

158

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“…In recent years, extractive distillation with ionic liquids (ILs) has been extensively studied [26][27][28][29][30]. Application of ILs as entrainers may have some advantages, such as high capacities and selectivities, less pollution of the distillate, smaller size of equipment (distillation columns), and less energy utilization [14,31].…”

Section: Introductionmentioning

confidence: 99%

Vapor Liquid Equilibria for Ionic Liquid/Ethanol/Water Systems and the Effect of Anion Hydrolysis

et al. 2020

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The performance of two tetrafluoroborate-based ionic liquids (ILs) as entrainers in the dehydration of water/ethanol azeotropic mixtures was evaluated. Isobaric vapor-liquid equilibrium (VLE) data were measured for the systems ethanol/ water/1-butyl-3-methyl imidazolium tetrafluoroborate and ethanol/water /n-butylpyridinium tetrafluoroborate including the azeotropic region. VLE data for the ethanol/water, ethanol/IL, and water/IL binary mixtures were obtained at 100 kPa. The hydrolysis of the tetrafluoroborate anion was studied for both types of ILs by 19 F NMR analysis. The hydrolysis of the tetrafluoroborate anion does not have much effect on the ethanol/water VLE. The 19 F NMR analysis indicated that hydrolysis occurred at high mole fractions of water.

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“…Therefore, a non-volatile solvent is added to the column producing free solvent products in the condenser. Lately, many works have been published regarding the separation of azeotropes and close boiling point mixtures using ionic liquids as solvent, most of them are related to vapor-liquid equilibrium evaluation of ionic liquids for improving relative volatilities [12][13][14][15][16][17][18][19][20][21][22]. Here, it has been demonstrated that, in general, ionic liquids can produce better relative volatilities than organic solvents [22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Mass Transfer in Extractive Distillation when Using Ionic Liquids as Solvents

Quijada‐Maldonado¹,

Meidersma²,

deHaan³

2018

Heat and Mass Transfer - Advances in Modelling and Experimental Study for Industrial Applications

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Mass transfer efficiency study in extractive distillation with ionic liquids for the mixtures water-ethanol and toluene-methylcyclohexane has been carried out in this work. Ionic liquids for the separation of these mixtures overcome the performance of the common volatile organic solvents. However, these also showed higher viscosities. A rated-based analysis was performed in order to quantify the effect of the solvent viscosity and relative volatility on mass transfer efficiency. In addition to this, an experimental analysis of the mass transfer efficiency was carried out experimentally in an extractive distillation pilot plant. The results indicated that, high liquid viscosities of ionic liquids should not affect the mass transfer efficiency negatively if the produced relative volatilities are sufficiently higher than those produced by organic solvents. However, when the ionic liquid showed very high viscosities or this solvent was present in large concentrations inside the column, the mass transfer efficiency decreases no matter how high the relative volatility is.

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Separation of the ethanol/water azeotropic mixture using ionic liquids and deep eutectic solvents

Cited by 72 publications

References 23 publications

Development of deep eutectic solvents applied in extraction and separation

Development of deep eutectic solvents applied in extraction and separation

Vapor Liquid Equilibria for Ionic Liquid/Ethanol/Water Systems and the Effect of Anion Hydrolysis

Mass Transfer in Extractive Distillation when Using Ionic Liquids as Solvents

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