Drop sizes and its distribution in jet-driven liquid–liquid mixing column: substantial application for the liquid–liquid extraction process

Sangtam, Bongliba T.; Prakash, Ritesh; Majumder, Subrata Kumar

doi:10.1016/j.cherd.2021.02.029

Cited by 5 publications

(7 citation statements)

References 83 publications

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“…As summarized in Table S3, densities of pure compounds decrease according to the following order: diethylene glycol > ethylene glycol > isoeugenol > 1,3-propanediol > methylcyclohexane. Particularly, the trends of densities can be considered as the first stage toward designing an extraction process . Indeed, to recover monophenols from biobased jet fuel, isoeugenol can represent the prototype monophenol compound, while methylcyclohexane can be associated with biobased jet fuel media.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, it is necessary to process the mixture to remove as much as possible of the oxygenated molecules. The separation processes traditionally used to recover or remove phenolic compounds from the bio-oil phase are distillation, chromatography, supercritical fluid extraction, and solvent extraction. , Specifically, solvent extraction is attractive due to its easy scale-up and incorporation in industrial processes . Due to the complexity of the bio-oil mixture, it is necessary to use a model mixture for the extraction study.…”

Section: Introductionmentioning

confidence: 99%

“…5,8 Specifically, solvent extraction is attractive due to its easy scale-up and incorporation in industrial processes. 11 Due to the complexity of the bio-oil mixture, it is necessary to use a model mixture for the extraction study. Among the model molecules considered for fuel are toluene, dodecane, hexadecane, and methylcyclohexane.…”

Section: ■ Introductionmentioning

confidence: 99%

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Separation of Isoeugenol from Methylcyclohexane as a Model Mixture of Biojet Fuel Purification: Solvent Selection and Liquid–Liquid Equilibrium

Espinoza-Cartagena,

Ormazábal-Latorre,

Pazo-Carballo

et al. 2023

Ind. Eng. Chem. Res.

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The biorefinery concept emerged as an opportunity to reduce the negative effects of climate change and as a potential source of products for the fuel industry, where jet fuel produced by hydrodeoxygenation of bio-oil (denominated as biojet fuel) is of special interest. However, the presence of highly oxygenated species makes this kind of jet fuel unsuitable as a final product. Thus, it is necessary to remove phenolic compounds from its complex matrix, but the study of solvent extraction of phenolic compounds as an upgrading of a bio-oil matrix requires a thermodynamic framework to reduce the experimental effort. In this work, isoeugenol was selected as a model phenolic molecule from biojet fuel, while methylcyclohexane was selected as a representative cyclic alkane solvent from jet fuel. Three solvents were selected by a screening based on a conductor-like screening model for real solvents (COSMO-RS) to test their capability to extract isoeugenol from methylcyclohexane. The selected solvents were ethylene glycol, diethylene glycol, and 1,3-propanediol. The density and viscosity were measured for all pure compounds and the mixtures of isoeugenol + (methylcyclohexane or extracting solvent) at 101.3 kPa and temperatures from 293.15 to 333.15 K. The liquid−liquid equilibrium was also measured for all the systems of isoeugenol + methylcyclohexane + extracting solvent at 101.3 kPa and 313.15 K. Density and liquid−liquid equilibrium data were modeled with perturbed-chain statistical associating fluid theory (PC-SAFT). Viscosity was modeled using the PC-SAFT + entropy scaling theory. The results indicate that isoeugenol has a higher affinity with the selected extracting solvents than methylcyclohexane, since the excess volume for binary mixtures of isoeugenol + extracting solvent exhibits negative values, while isoeugenol + methylcyclohexane exhibits mainly positive values. The selectivity and distribution coefficient values obtained support the idea that selected solvents are good for extracting isoeugenol, where diethylene glycol is the best alternative. PC-SAFT accurately represents the liquid−liquid equilibrium with only binary interaction parameters between methylcyclohexane and the selected solvents. Then, this model can be used as a tool for the analysis and simulation of processes of isoeugenol separation in more complex liquid mixtures.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Separation of Isoeugenol from Methylcyclohexane as a Model Mixture of Biojet Fuel Purification: Solvent Selection and Liquid–Liquid Equilibrium

Espinoza-Cartagena,

Ormazábal-Latorre,

Pazo-Carballo

et al. 2023

Ind. Eng. Chem. Res.

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“…The comprehensive elucidations of Sauter mean drop diameter used in this work are shown in the previous work. 45 The effect of Sauter mean drop diameter (d 32 ) on ADC (E d ) at different dispersed phase volumes (kerosene−water) is shown in Figure 4. It is observed that E d decreases as d 32 increases for all the dispersed phase volumes.…”

Section: Resultsmentioning

confidence: 99%

“…The mixing phenomenon is influenced by the Sauter mean drop diameter ( d 32 ) in a jet-driven mixing column. The comprehensive elucidations of Sauter mean drop diameter used in this work are shown in the previous work . The effect of Sauter mean drop diameter ( d 32 ) on ADC ( E d ) at different dispersed phase volumes (kerosene–water) is shown in Figure .…”

Section: Resultsmentioning

confidence: 99%

Mixing Characteristics of a Liquid–Liquid Dispersion in a Jet-Driven Mixing Column: Developed for the Separation of Organic Pollutants

Sangtam

Prakash

Majumder

2021

Ind. Eng. Chem. Res.

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The present work focuses on studying the degree of liquid–liquid axial dispersion in a jet-driven mixing column. The online conductivity measurement was performed to study the residence time distribution. The effects of the jet velocity and dispersed phase volume on mixing characteristics were studied. The axial dispersion coefficient range was found to be 25.6 to 106 cm2/s. A general correlation is developed to predict the axial dispersion coefficient based on various operating variables. A mechanistic model is proposed to interpret dispersion due to the turbulence and phase circulation inside the jet-driven mixing column. Based on the velocity distribution model, the velocity characteristic factor and the dispersion factor of drop motion were also enunciated. The present study may be helpful for further understanding a two-phase system in industrial applications, especially in liquid–liquid extraction.

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Experimental study on the dispersed phase droplet formation process in a circumferential shear flow in dripping regime

Zhang

Chen

Liu

et al. 2023

Chemical Engineering Research and Design

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Drop sizes and its distribution in jet-driven liquid–liquid mixing column: substantial application for the liquid–liquid extraction process

Cited by 5 publications

References 83 publications

Separation of Isoeugenol from Methylcyclohexane as a Model Mixture of Biojet Fuel Purification: Solvent Selection and Liquid–Liquid Equilibrium

Separation of Isoeugenol from Methylcyclohexane as a Model Mixture of Biojet Fuel Purification: Solvent Selection and Liquid–Liquid Equilibrium

Mixing Characteristics of a Liquid–Liquid Dispersion in a Jet-Driven Mixing Column: Developed for the Separation of Organic Pollutants

Experimental study on the dispersed phase droplet formation process in a circumferential shear flow in dripping regime

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