Liquid–Liquid Equilibrium for Ternary Systems of Water + 2,2,3,3-Tetrafluoro-1-propanol + Anisole/1-Octanol at 298.2, 308.2, and 318.2 K

Jia, Bing; Wang, Liping; Yan, Mengmeng; Liu, Hai; Yu, Yingmin; Li, Qingsong

doi:10.1021/acs.jced.8b00393

Cited by 12 publications

(5 citation statements)

References 36 publications

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“…When the cation of the ILs was imidazole, the length increase of the cationic alkyl chain can improve the extraction effect. In Table 4, the values of S for ZIF‐8‐PIL and IL are compared with those of other organic solvents, such as alcohol, ether, esters and ketone 5,20,43‐45 . As is obvious, ZIF‐8‐PIL has great potential for extracting TFP, although the values of S for PIL are smaller than that of some organic solvents.…”

Section: Resultsmentioning

confidence: 99%

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Comparative evaluation of liquid–liquid equilibria for extraction of 2,2,3,3‐tetrafluoro‐1‐propanol from water by a ZIF‐8‐porous ionic liquid

Fan

Wang

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND 2,2,3,3‐Tetrafluoro‐1‐propanol (TFP) is a benign solvent and widely used in the electronics industry as a cleaning agent. Because water and TFP can form an azeotropic mixture, it consumes energy to separate TFP from its aqueous mixtures using conventional distillation. RESULTS In this work, the zeolitic imidazolate framework‐8 porous ionic liquid (ZIF‐8‐PIL) and the ionic liquid (IL) N‐butyl pyridinium bis(trifluoromethyl sulfonyl) imide ([Bpy][NTf2]) are used as extractants to extract TFP from its aqueous solution. ZIF‐8‐PIL was synthesized by ZIF‐8 and IL [Bpy][NTf2]. The liquid–liquid equilibrium (LLE) data for the two systems (water + TFP + ZIF‐8‐PIL/IL) were determined at 298.15, 308.15 and 318.15 K under 101.3 kPa. The selectivity (S) and distribution coefficient (D) were examined to assess the extractive performance of ZIF‐8‐PIL and IL. The non‐random two‐liquid (NRTL) model was applied to fit the tie‐line data of the investigated mixtures. CONCLUSION The results demonstrate that ZIF‐8‐PIL is a suitable extractant to separate TFP with values of S and D greater than unity. The NRTL model has better correlation performance for the ternary systems with root mean square deviation lower than 0.01. The obtained parameters satisfy the minimum state of the mixed Gibbs free energy, which indicated that the model parameters are reliable. © 2021 Society of Chemical Industry (SCI).

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Section: Resultsmentioning

confidence: 99%

“…determined the liquid–liquid equilibrium (LLE) behavior for the mixture (water + TFP + tert ‐butyl methyl ether/isopropyl ether). Jia et al 20 . investigated the two ternary systems (water + TFP + 1‐octanol/anisole).…”

Section: Introductionmentioning

confidence: 99%

Comparative evaluation of liquid–liquid equilibria for extraction of 2,2,3,3‐tetrafluoro‐1‐propanol from water by a ZIF‐8‐porous ionic liquid

Fan

Wang

et al. 2021

J of Chemical Tech & Biotech

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“…The specific information about uncertainty is provided in the Supporting Information. Generally, the UNIQUAC model and NRTL model are used to regress the LLE data to obtain the binary interaction parameters. − After comparison, it was found that the UNIQUAC model had higher accuracy of regression, so in this article, the UNIQUAC model was used to regress the LLE data to acquire the binary interaction parameters. The activity coefficient in the UNIQUAC model is expressed as follows θ i and φ i represent the volume fraction and surface area fraction, respectively.…”

Section: Methodsmentioning

confidence: 99%

Liquid–Liquid Equilibrium Data and Process Simulation for Separating the Mixture of Decanol + Undecanol + Tetradecane + Pentadecane

et al. 2020

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In this article, Aspen Plus was used to simulate a process for separating the mixture of decanol + undecanol + tetradecane + pentadecane to obtain decanol + undecanol product and tetradecane + pentadecane product. Aqueous ethanol solution and octadecane were chosen as potential extractants. First, the liquid−liquid equilibrium (LLE) data of the four quaternary systems {ethanol (1) + decanol (2) + tetradecane (4) + water (6), and ethanol (1) + decanol (2) + pentadecane (5) + water (6), ethanol (1) + undecanol (3) + tetradecane (4) + water (6), ethanol (1) + undecanol (3) + pentadecane (5) + water (6)} and the six-component system {ethanol (1) + decanol (2) + undecanol (3) + tetradecane (4) + pentadecane (5) + water (6)} were obtained at 293.15, 298.15, and 303.15 K under atmospheric pressure. The UNIQUAC model was used to regress the LLE data of the four quaternary systems to obtain the binary interaction parameters, which were used to predict the LLE data of the six-component system. The results showed that the predicted and experimental data were in great agreement. Second, the LLE data of the sevencomponent system {ethanol (1) + decanol (2) + undecanol (3) + tetradecane (4) + pentadecane (5) + water (6) + octadecane (7)} were obtained at 303.15, 308.15, and 313.15 K under atmospheric pressure, and the binary interaction parameters involving the component octadecane were obtained by data regression using the UNIQUAC model. Finally, a 2500t/a process of separating the mixture of decanol + undecanol + tetradecane + pentadecane was simulated in Aspen Plus with these regressed binary interaction parameters. On optimization, 99.80 wt % decanol + undecanol product and 99.76 wt % tetradecane + pentadecane product were obtained.

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“…Wang et al 16 used novel hollow fiber membranes for dehydrating TFP with good selectivity and relatively high permeation flux. Meanwhile, liquid-liquid extraction was used to separate the mixture of TFP and water by Xu et al 17 and Li et al 18,19 Combining the advantages of extraction and distillation, Shen and Chien 20 provided a hybrid extraction-distillation flowsheet for separating TFP and water with energy savings. Recently, ionic liquids (ILs) as green solvents have been applied as entrainers to replace traditional organic solvents in extractive distillation [21][22][23][24][25][26] because of their negligible vapor pressure, high selectivity, and low toxicity.…”

Section: Introductionmentioning

confidence: 99%

Process design, evaluation and control for separation of 2,2,3,3‐tetrafluoro‐1‐propanol and water by extractive distillation using ionic liquid 1‐ethyl‐3‐methylimidazolium acetate

Wei

Diao

Gao

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND: 2,2,3,3-tetrafluoro-1-propanol (TFP) is a good solvent that is applied in the electronic industry. To recover TFP from its aqueous solution, conventional distillation cannot be adopted because TFP and water can form a minimum azeotrope. RESULTS: In this work, extractive distillation is applied to separate the azeotropic mixture of TFP and water using 1-ethyl-3-methylimidazolium acetate ([EMIM][Ac]) as an entrainer. Based on the analysis of residual curve map, three processes are designed to separate the mixture. Extractive distillation processes (EDP) I and II consist of an extractive column and two flashes, and EDP III consists of an extractive column, a flash, and a stripper. For evaluating the three processes, total annual cost (TAC), CO 2 emissions and global energy consumption (GEC) are considered into the objective function. CONCLUSION:The simulated results show that EDP III with an extractive column, a flash, and a stripper can provide better economic and environmental benefits. Water can be obtained from the extractive column with a molar purity of 99.7%. TFP can be separated from the top of the flash and stripper with a molar purity of 99.7%. Furthermore, the control structure with two-point temperature for EDP III is explored and it shows good responses for the disturbances of feed flow rate and composition.

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Liquid–Liquid Equilibrium for Ternary Systems of Water + 2,2,3,3-Tetrafluoro-1-propanol + Anisole/1-Octanol at 298.2, 308.2, and 318.2 K

Cited by 12 publications

References 36 publications

Comparative evaluation of liquid–liquid equilibria for extraction of 2,2,3,3‐tetrafluoro‐1‐propanol from water by a ZIF‐8‐porous ionic liquid

Comparative evaluation of liquid–liquid equilibria for extraction of 2,2,3,3‐tetrafluoro‐1‐propanol from water by a ZIF‐8‐porous ionic liquid

Liquid–Liquid Equilibrium Data and Process Simulation for Separating the Mixture of Decanol + Undecanol + Tetradecane + Pentadecane

Process design, evaluation and control for separation of 2,2,3,3‐tetrafluoro‐1‐propanol and water by extractive distillation using ionic liquid 1‐ethyl‐3‐methylimidazolium acetate

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