Bubble column gas–liquid interfacial area in a polymer+surfactant+water system

García-Abuín, Alicia; Gómez‐Díaz, Diego; Losada, María Rosa Mosquera; Navaza, José M.

doi:10.1016/j.ces.2012.03.054

Cited by 32 publications

(16 citation statements)

References 30 publications

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“…It is generally admitted that-in the homogeneous flow regime-d b increases [156] and, after the transition, "coalescence induced" bubbles appear, whereas the contribution of the "non-coalescence induced" bubbles remain constant [18]. Some authors reported an increase in d b with superficial gas velocity, both in the homogeneous and heterogeneous flow regimes [35,38,85,87,127,183,[232][233][234][235][236][237][238][239], while other authors reported no effect of U G over d b [188,240] and some others reported a decrease in the bubble size [241]. In the literature, both unimodal [239] and bimodal [242][243][244][245] BSD have been found depending on the gas sparger design and operating conditions.…”

Section: Superficial Gas Velocitymentioning

confidence: 96%

See 1 more Smart Citation

Two-Phase Bubble Columns: A Comprehensive Review

2018

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We present a comprehensive literature review on the two-phase bubble column; in this review we deeply analyze the flow regimes, the flow regime transitions, the local and global fluid dynamics parameters, and the mass transfer phenomena. First, we discuss the flow regimes, the flow regime transitions, the local and global fluid dynamics parameters, and the mass transfer. We also discuss how the operating parameters (i.e., pressure, temperature, and gas and liquid flow rates), the operating modes (i.e., the co-current, the counter-current and the batch modes), the liquid and gas phase properties, and the design parameters (i.e., gas sparger design, column diameter and aspect ratio) influence the flow regime transitions and the fluid dynamics parameters. Secondly, we present the experimental techniques for studying the global and local fluid dynamic properties. Finally, we present the modeling approaches to study the global and local bubble column fluid dynamics, and we outline the major issues to be solved in future studies.

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Section: Superficial Gas Velocitymentioning

confidence: 96%

“…When using active compounds, the bubble size distribution changes because of coalescence suppression, and a decrease in d b is expected (along with an increase in ε G ) [8,38,56,80,108,127,149,161,234,241,253,270,271]. Among the broader literature on the topic, we present some examples for the sake of clearness.…”

Section: Active Compoundsmentioning

confidence: 99%

Two-Phase Bubble Columns: A Comprehensive Review

2018

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“…Shah et al (2012) found no stabilizing effect in the range 1-50 mPa.s for polyethylene glycol aqueous solutions. García-Abuín et al (2012) report that in fact increasing viscosity by adding a polymer lead to a decrease of gas holdup and interfacial until a certain concentration. Further increase of the viscosity results in an increase of the gas holdup and interfacial area.…”

Section: Temperature Influence On Gas Holdupmentioning

confidence: 97%

Bubble column reactors for high pressures and high temperatures operation

Leonard

Ferrasse

Boutin

et al. 2015

Chemical Engineering Research and Design

103

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“…SDS, CTAB, Triton X-100) in a bubble column equipped with fine pore sparger and containing a Newtonian liquid, proposed a generalized correlation that can predict the gas holdup with reasonable accuracy (±10%). García-Abuín et al (2012) studied similar systems in a bubble column where the gas phase was distributed through five holes. To the authors' best knowledge there is still no work published considering the effect of surfactant addition to a non-Newtonian fluid on the performance of bubble columns equipped with a fine pore sparger.…”

Section: Introductionmentioning

confidence: 99%