CFD and Population Balance Modeling of Crude Oil Emulsions in Batch Gravity Separation—Comparison to Ultrasound Experiments

Oshinowo, Lanre; Quintero, Carlos Gerardo; Vilagines, Régis

doi:10.1080/01932691.2015.1054508

Cited by 31 publications

(11 citation statements)

References 40 publications

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“…Although less abundant than experimental studies, the previous literatures have focused on the CFD modeling of emulsions under different circumstances. ,,− In this study, CFD simulations were conducted with the objective of studying the three-dimensional profile of relevant variables as a way of gaining better insight into the influence of process variables in the observed macroscopic and microscopic responses. As mentioned before, simulations were limited to the homogenization phase with the propeller turbine.…”

Section: Results and Analysismentioning

confidence: 99%

Multiscale Analysis of Water-in-Oil Emulsions: A Computational Fluid Dynamics Approach

Gallo-Molina

Ratkovich

Álvarez

2017

Ind. Eng. Chem. Res.

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Emulsions are a type of metastable colloid composed of two or more immiscible liquids. These systems are widely used in a variety of applications, such as cosmetics, drug delivery, food, etc. Although there exist theoretical foundations which offer insights into these systems, industry practices often favor empirical methods. In this work a multiscale approximation is used for the study of water-in-oil (W/O) emulsions. This approach allows for the analysis of interrelationships among macroscopic, microscopic, process, and formulation variables. Additionally, the emulsions were modeled with Computational Fluid Dynamics (CFD), which permitted a better understanding of the role process variables plays. It was possible to establish relationships among incorporated energy, elastic modulus, mean droplet diameter, and stability measurements. In addition, differences in impeller geometry were found to have an effect in the aforementioned variables. Finally, the CFD model allowed for the observation of gradients in relative viscosity, droplet diameter, and dispersed phase volume fraction.

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Section: Results and Analysismentioning

confidence: 99%

Multiscale Analysis of Water-in-Oil Emulsions: A Computational Fluid Dynamics Approach

Gallo-Molina

Ratkovich

Álvarez

2017

Ind. Eng. Chem. Res.

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“…CFD has been implemented for the modeling of emulsions under different conditions. Roudsari et al 24 studied the mixing of W/O emulsions in lab-scale conditions, while Oshinowo et al 56 analyzed the separation of the same type of emulsions in batch gravity separators. Agterof et al 57 focused on the prediction of particle size distributions and Lo et al 58 assessed the effect of multiple variables on pressure distributions in W/ O emulsions.…”

Section: Results and Analysismentioning

confidence: 99%

“…CFD has been implemented for the modeling of emulsions under different conditions. Roudsari et al studied the mixing of W/O emulsions in lab-scale conditions, while Oshinowo et al . analyzed the separation of the same type of emulsions in batch gravity separators.…”

Section: Results and Analysismentioning

confidence: 99%

The Application of Computational Fluid Dynamics to the Multiscale Study of Oil-in-Water Emulsions

Gallo-Molina

Ratkovich

Álvarez

2018

Ind. Eng. Chem. Res.

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Emulsions are widely used in different industries such as oil, food, pharmaceutics, and cosmetics. These systems, however, exhibit high degrees of complexity due to the interactions between the dispersed and continuous phase on different levels (i.e., molecular and microscopic) and the emergent properties generated by said interactions. In this work, the interrelationships among macroscopic, microscopic, molecular, process, and formulation variables in oil-in-water (O/W) emulsions were analyzed via a multiscale analysis. Furthermore, Computational Fluid Dynamics (CFD) was implemented in order to gain a better understanding of the link between process variables and other relevant responses. Relationships among elastic modulus, mean droplet diameter, zeta potential, stability, and incorporated energy measurements could be established. The simulation allowed for the observation of three-dimensional gradients in relative viscosity, droplet diameter, and dispersed phase volume fraction, as well as flow details for two of the studied impeller geometries.

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“…In the past few years, several attempts have been made to deepen the understanding of break-up and coalescence phenomena by combining computational fluid dynamics (CFD) and population balance models (PBM). [126][127][128][129][130][131][132][133] In these works, the spatial dependencies of the break-up and coalescence rates are incorporated by simulating the geometry in question with a proper mesh and solving the equations with a finite elements method or similar. This methodology results in a greater physical accuracy but demands higher computational costs.…”

Section: Drop Breakage and Coalescence Processes In Liquid-liquid Dmentioning

confidence: 99%

Mechanisms and conditions that affect phase inversion processes: A review

2020

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The phenomenon of phase inversion occurs in liquid-liquid dispersions found in a variety of chemical engineering fields. From simple oil-water mixtures to complex polymeric systems, the operating variables that affect this physical phenomenon are discussed in this work. The contribution on this matter by a large number of researchers is critically assessed, outlining both coherent and conflicting results. A detailed review of the mechanisms by which phase inversion takes place is also provided. While this subject has been studied for the past fifty years, this multivariate nonlinear process is This article is protected by copyright. All rights reserved. not yet comprehensively understood, and this review article aims to describe the conclusions so far reached to provide insight for future research.

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CFD and Population Balance Modeling of Crude Oil Emulsions in Batch Gravity Separation—Comparison to Ultrasound Experiments

Cited by 31 publications

References 40 publications

Multiscale Analysis of Water-in-Oil Emulsions: A Computational Fluid Dynamics Approach

Multiscale Analysis of Water-in-Oil Emulsions: A Computational Fluid Dynamics Approach

The Application of Computational Fluid Dynamics to the Multiscale Study of Oil-in-Water Emulsions

Mechanisms and conditions that affect phase inversion processes: A review

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