Interfacial area and volumetric mass transfer coefficient in a bubble reactor at elevated pressures

Maalej, Samah; Benadda, Belkacem; Otterbein, M.

doi:10.1016/s0009-2509(03)00085-x

Cited by 69 publications

(41 citation statements)

References 14 publications

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“…Lin et al [91,92,170] (p c = 0.1-1.3 MPa) reported that the pressure has an influence over large bubbles only, suggesting that, in the homogeneous flow regime, the influence of pressure may be also negligible. The influence of pressure over d b is related to the gas sparger employed-Maalej et al [182] (p c = 0.1-5.0 MPa) reported a lower influence of pressure for porous gas spargers than for perforated gas spargers (because of the narrow BSD in "fine distributors"). Kölbel et al [189] (p c = 0.1-0.6 MPa) attributed the absence of a pressure effect in both the homogeneous or heterogeneous flow regimes to the narrow BSD at the gas sparger.…”

Section: Pressurementioning

confidence: 99%

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: Pressurementioning

confidence: 99%

Two-Phase Bubble Columns: A Comprehensive Review

2018

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“…This influence seems to depend on gas sparger. Maalej et al (2003) have reported that the pressure effect is less important for porous plates than for perforated spargers. This effect is mainly due to the size of the bubbles that are formed on the different spargers, smaller for porous plates.…”

Section: Measurementmentioning

confidence: 99%

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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“…The study of Yoshimoto et al [15] showed that k l decreased with an increase in liquid viscosity, while the study of Maalej et al [54] showed that k l decreased for low U g and remain constant for high U g . Yang et al [55] reported that both the interfacial area and mass transfer coefficient increased with increasing superficial gas and liquid velocities.…”

Section: Interfacial Area and Liquid-side Mass Transfer Coefficientmentioning

confidence: 99%