Determination of liquid hold-up and flow distribution inside modular catalytic structured packings

Viva, A.; Aferka, Saïd; Toye, Dominique; Marchot, Pierre; Crine, Michel; Brunazzi, Elisabetta

doi:10.1016/j.cherd.2011.02.009

Cited by 30 publications

(13 citation statements)

References 26 publications

(49 reference statements)

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“…A great effort in the field of X-ray tomography was made by the working group of Toye (Aferka et al, 2007Toye et al, 1999Toye et al, , 2005Viva et al, 2011). They investigated the liquid distribution in a trickle bed reactor, static and liquid hold-up in structured packings, and the interfacial area distribution.…”

Section: Introductionmentioning

confidence: 99%

Qualitative and quantitative insights into multiphase flow in ceramic sponges using X-ray computed tomography

Wallenstein

Hafen

Heinzmann

et al. 2015

Chemical Engineering Science

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Section: Introductionmentioning

confidence: 99%

Qualitative and quantitative insights into multiphase flow in ceramic sponges using X-ray computed tomography

Wallenstein

Hafen

Heinzmann

et al. 2015

Chemical Engineering Science

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“…Liquid hold-up near the junctions of two sheets was high, as noticed in some experimental studies performed using Xray tomography [17]. It is also shown that the minor change in position of the inlet distributors considerably changes the wetting area and the flow direction of the liquid.…”

Section: Discussionmentioning

confidence: 55%

“…The numerical results were compared to approximate solution presented in the literature [14,15]. Van Baten and Krishna [16] studied the gas and liquid mass transfer in katapak-S structures using CFD simulations, and gas phase mass transfer was in good agreement with the theoretical correlation of Viva et al [17], whereas the liquid phase mass transfer was onefold lesser than the correlation.…”

Section: Cfd Studiesmentioning

confidence: 50%

Analysis of Hydrodynamics of Fluid Flow on Corrugated Sheets of Packing

Subramanian

Wozny

2012

International Journal of Chemical Engineering

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Modelling of the hydrodynamics behaviour of the liquid on the corrugated sheets of packing is studied using three-dimensional, volume-of-fluid (VOF) model that is incorporated in Ansys Fluent 12.0. The flow of three different liquids with different physical properties is modelled. A domain of corrugated sheets of packing resembling the real structured packing with little modifications in the elementary geometry is constructed using ICEM CFD 12.0. The quantitative comparisons of the wetting behavior from the simulations are in good agreement with experiments. Further, the study has been extended to understand the influence of the second corrugated sheet on the flow behavior. The contours from the simulations indicate the liquid hold-up in the crimp of two corrugated sheets, and these results are in good agreement with the earlier experimental studies performed using X-ray tomography in the literature. The result from the simulation shows that even for the high flow rate of around 811 mL/min for silicon-oil (DC5), only 60% of the corrugated sheet has been wetted. Hence, the efficiency of the existing packing can be further increased by increasing the wetted area in the corrugated sheet of packing.

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“…CFD simulation by VOF model concerning liquid film behavior on the structured packing sheet is helpful to understand it [25][26][27][28][29] . There are also some experiments measuring the liquid holdup and the effective wetting area [30][31][32][33][34][35] . In a word, predicting the liquid distribution is quite important and necessary;…”

Section: Introductionmentioning

confidence: 99%

Multiscale Calculation on Perforated Sheet Structured Packing To Predict the Liquid Distribution Based on Computational Fluid Dynamics Simulation

Liu

Wen

Liu

et al. 2016

Ind. Eng. Chem. Res.

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This paper is the subsequent work of our previous study in which the liquid distribution on the imperforate structured packing sheet was predicted. In this study, a novel multi-scale model for describing the liquid distribution on the perforated structured packing sheet is proposed. The large scale model is a mechanistic model, using liquid split coefficients as model parameters derived from a 3D volume of fluid (VOF) simulation within the representative units. The model can theoretically adapt to vary working conditions; and the liquid distribution of all the packing layer/tower can be given. Five types of flow patterns are discussed according to the simulation results. The influence of gas flow and openings on liquid flow are also discussed. This proposed model can supply a deep insight into the mechanism of the liquid distribution inside the packing tower and help understanding the details of inter-phase behavior which are hardly available by experiment.

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Determination of liquid hold-up and flow distribution inside modular catalytic structured packings

Cited by 30 publications

References 26 publications

Qualitative and quantitative insights into multiphase flow in ceramic sponges using X-ray computed tomography

Qualitative and quantitative insights into multiphase flow in ceramic sponges using X-ray computed tomography

Analysis of Hydrodynamics of Fluid Flow on Corrugated Sheets of Packing

Multiscale Calculation on Perforated Sheet Structured Packing To Predict the Liquid Distribution Based on Computational Fluid Dynamics Simulation

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