Viscosity and density data for the ternary system water(1)–ethanol(2)–ethylene glycol(3) between 298.15K and 328.15K

Quijada‐Maldonado, E.; Meindersma, G.W.; Haan, A.B. de

doi:10.1016/j.jct.2012.08.024

Cited by 49 publications

(20 citation statements)

References 41 publications

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“…Second, Meindersma et al reported that a pilot plant has been established for the separation of ethanol and water by extractive distillation with ILs. This is a significant improvement for the traditional process using the benchmark solvent ethylene glycol (EG) as entrainer, with the result that energy consumption decreased by 16% after rational heat integration. Nowadays, many common ILs can be easily bought from chemical suppliers on a large scale and at low prices, rendering the application of this promising technology feasible in industry.…”

Section: Introductionmentioning

confidence: 99%

Extractive distillation with ionic liquids: A review

et al. 2014

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Extractive distillation is commonly used for the separation of azeotropic or close-boiling mixtures in the chemical industry. During the past decade, the use of ionic liquids (ILs) as entrainers has received considerable attention due to their unique advantages when applied in extractive distillation. This work is devoted to providing an easy-to-read and comprehensive review on the recent progress made by chemical engineers, focusing on the issues of predictive thermodynamic models, structure-property relations, separation mechanisms, and process simulation and optimization. This review spans from the molecular level to the industrial scale, to provide a theoretical insight into the molecular interactions between ILs and the components to be separated. Moreover, a comprehensive database on the vapor-liquid equilibria (VLE) and activity coefficients at infinite dilution concerning ILs is provided as Supporting Information. Concluding remarks are made on the unsolved scientific issues with respect to this promising special distillation technology.

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Section: Introductionmentioning

confidence: 99%

Extractive distillation with ionic liquids: A review

et al. 2014

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“…The pseudo-binary gasoline+alcohol mixtures were prepared at room temperature for various volume fractions, in order to cover the entire composition range. 3 ) 0.7919 0.8034 0.7909 [13] 0.7950 [14] 0.7851 0.7855 [15] 0.7853 [16] 0.8102 0.8101 [17] 0.8097 [13] Dynamic viscosity at 40 o C (mPa•s) 0.3673 0.9081 0.829 [18] 0.837 [19] 1.3236 1.3470 [16] 1.3500 [20] 1.7769 1.7696 [21] Refractive index at 20 o C 1.4520 1.3624 1.362 [22] 1.3766 1.3750 [23] 1.3752 [24] 1.3991 1.3950 [22] 1.3991 [25] The experimental uncertainty in volume fraction was estimated to be less than ±0.002. The mixtures were prepared in airtight narrow-mouth ground glass stoppered bottle, in order to minimize the evaporative losses.…”

Section: Methodsmentioning

confidence: 99%

Study of the refractive index of gasoline+alcohol pseudo-binary mixtures

Nita

Geacai

Iulian

et al. 2017

Ovidius University Annals of Chemistry

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Abstract. The properties of gasoline change as a result of blending with a bioalcohol, affecting the behavior of the pseudo-binary system. The aim of this paper is to present experimental data of the refractive index for pseudobinary mixtures of a reformate gasoline with ethanol, isopropanol and n-butanol over the entire composition range and for temperature ranging from 293.15 K to 313.15 K. The accuracy of different equations to predict the refractive index of the mixtures was tested. The best prediction accuracy (the lower AAD) corresponded to Eykman and Lorentz-Lorenz mixing rules. A logarithmic equation proposed to correlate the refractive index with composition and temperature of gasoline+alcohol mixtures showed a good accuracy (the absolute average deviation AAD < 0.052%). The deviations in refractive index for investigated systems are negative over the entire composition range and at all investigated temperatures.

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“…ASPEN Plus® radfrac with the Rate-Sep package enables the use of the rate-based model to evaluate the effect of the solvent on the mass transfer efficiency in the ED process. This model needs physical and transport properties of both pure component and ternary mixture which were taken elsewhere [27,37,44]. Column internals are other parameters that have to be defined.…”

Section: Simulation Setupmentioning

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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Viscosity and density data for the ternary system water(1)–ethanol(2)–ethylene glycol(3) between 298.15K and 328.15K

Cited by 49 publications

References 41 publications

Extractive distillation with ionic liquids: A review

Extractive distillation with ionic liquids: A review

Study of the refractive index of gasoline+alcohol pseudo-binary mixtures

Mass Transfer in Extractive Distillation when Using Ionic Liquids as Solvents

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