Effect of hydrodynamics on mass transfer in a gas-liquid oscillatory baffled column

Monica Oliveira; X. Ni

doi:10.1016/j.cej.2004.01.002

Effect of hydrodynamics on mass transfer in a gas-liquid oscillatory baffled column

Monica Oliveira, X. Ni

Mechanical And Aerospace Engineering

Research output: Contribution to journal › Article

22 Citations (Scopus)

Abstract

In this paper, we present an experimental study on mass transfer of oxygen into water in an oscillatory baffled column (OBC). The objective of this work is to establish the contribution of individual parameters, such as the size of bubbles and the gas holdup, to the overall volumetric mass transfer coefficient (kLa). Our results show that the gas holdup is the most important factor. The liquid-side mass transfer coefficient (kL) is calculated directly from the experimental measurements of gas holdup, Sauter mean diameter and kLa, and an increase of kL with D32 is observed. The results also show that, above a critical level of fluid oscillation, the mass transfer coefficients are mainly
governed by the oscillatory operating conditions, while independent of the type of gas sparger.

Language	English
Pages	59-66
Journal	Chemical Engineering Journal
Volume	99
Issue number	1
DOIs	10.1016/j.cej.2004.01.002
Publication status	Published - 17 May 2004

Fingerprint

mass transfer

Mass transfer

Hydrodynamics

Gases

hydrodynamics

liquid

Liquids

gas

bubble

experimental study

oscillation

Oxygen

oxygen

Fluids

fluid

effect

Water

water

Keywords

fluid oscillation
mass transfer
bubble size
gas holdup
special interfacial area

Cite this

Oliveira, M., & Ni, X. (2004). Effect of hydrodynamics on mass transfer in a gas-liquid oscillatory baffled column. Chemical Engineering Journal, 99(1), 59-66. https://doi.org/10.1016/j.cej.2004.01.002

Oliveira, Monica ; Ni, X. / Effect of hydrodynamics on mass transfer in a gas-liquid oscillatory baffled column. In: Chemical Engineering Journal. 2004 ; Vol. 99, No. 1. pp. 59-66.

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Oliveira, M & Ni, X 2004, 'Effect of hydrodynamics on mass transfer in a gas-liquid oscillatory baffled column' Chemical Engineering Journal, vol. 99, no. 1, pp. 59-66. https://doi.org/10.1016/j.cej.2004.01.002

Effect of hydrodynamics on mass transfer in a gas-liquid oscillatory baffled column. / Oliveira, Monica; Ni, X.

In: Chemical Engineering Journal, Vol. 99, No. 1, 17.05.2004, p. 59-66.

Research output: Contribution to journal › Article

TY - JOUR

T1 - Effect of hydrodynamics on mass transfer in a gas-liquid oscillatory baffled column

AU - Oliveira, Monica

AU - Ni, X.

PY - 2004/5/17

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AB - In this paper, we present an experimental study on mass transfer of oxygen into water in an oscillatory baffled column (OBC). The objective of this work is to establish the contribution of individual parameters, such as the size of bubbles and the gas holdup, to the overall volumetric mass transfer coefficient (kLa). Our results show that the gas holdup is the most important factor. The liquid-side mass transfer coefficient (kL) is calculated directly from the experimental measurements of gas holdup, Sauter mean diameter and kLa, and an increase of kL with D32 is observed. The results also show that, above a critical level of fluid oscillation, the mass transfer coefficients are mainlygoverned by the oscillatory operating conditions, while independent of the type of gas sparger.

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KW - special interfacial area

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