Flooding limit in countercurrent gas–liquid structured packed beds—Prediction from a linear stability analysis of an Eulerian two-fluid model

Iliuta, Ion; Larachi, Faı̈çal; Fourati, Manel; Raynal, Ludovic; Roig, Véronique

doi:10.1016/j.ces.2014.08.053

Cited by 20 publications

(6 citation statements)

References 27 publications

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“…While low surface tension results in reduced wire mesh capacity due to earlier onset of reentrainment, low viscosity increases wire mesh capacity due to improved drainage and thus lower liquid holdup. The contrary impact of decreasing liquid viscosity and surface tension on vapor capacity was also reported by Iliuta et al [32] and Brunazzi et al [33] for structured packings, which have comparable geometric characteristics to wire meshes. Fig.…”

Section: Influence Of Surface Tension On Wire Mesh Capacitymentioning

confidence: 70%

Capacity and Sizing of Wire Mesh Mist Eliminators at Critical Fluid Properties

Flegiel

Windmeier

Wiezorek

et al. 2021

Chemie Ingenieur Technik

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Wire mesh flooding point measurements at low surface tension < 10 mN m -1 were conducted using a refrigerant as model fluid. A new method for the calculation of wire mesh capacity was developed based on experimental data from literature and data from this study. In comparison to the well-known and widely adapted K-value method given in the Gas Processors Suppliers Association (GPSA) Engineering Databook and various other sources, the new method yields 3-38 % reduced wire mesh cross sections for fluid systems at pressures above 20 bar(a) while retaining an inherent safety margin.

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Section: Influence Of Surface Tension On Wire Mesh Capacitymentioning

confidence: 70%

Capacity and Sizing of Wire Mesh Mist Eliminators at Critical Fluid Properties

Flegiel

Windmeier

Wiezorek

et al. 2021

Chemie Ingenieur Technik

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“…Two categories for the determination of the flooding point have been investigated by many researchers: the visual method and the graphic method. According to Sarchet, the error of the visual method is larger than that of graphic method.…”

Section: Resultsmentioning

confidence: 99%

Investigation of hydrodynamic performance and effective mass transfer area for Sulzer DX structured packing

et al. 2018

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The hydrodynamic performance in terms of pressure drop (▵P) and liquid holdup (hL), and tshe effective mass transfer area (ae) of Sulzer DX structured packing were investigated at 293.15 K and 101.3 kPa. In addition, the flooding velocity (uF) was also calculated based on the experimental results of liquid holdup, and the effective voidage correction factor (ς) was obtained by combining the Billet model and the experimental effective fraction. The liquid volume method and pressure difference from just below to above the column packing approach are used to describe the hydrodynamic performance in a structured packing column. Experimental results showed that the operational conditions in terms of gas flow rate, liquid flow rate, viscosity, and liquid systems strongly affect the hydrodynamic performance. The experimental comparison between the pressure drop profiles in air‐water (polyethylene oxide [PEO]) and MEA‐H2O‐CO2 systems indicated that both the reacting MEA and CO2 partial pressure can enhance the pressure drop value. In addition, the Bain‐Haugen correlation model was developed to predict the flooding velocity data with an acceptable AARD of 8.1%, and a model was also successfully proposed to predict the values of liquid holdup with an AARD of 11.8%, which is lower than 14.7% in Billet model. Furthermore, the effective mass transfer area was found to be increased by increasing both the liquid and gas flow rate by using NaOH‐H2O‐CO2 system. A model was also proposed to calculate the experimental ae with an acceptable AARD% of 19.52, and this built model (Eq. 39) can reasonably explain the experimental phenomenon. © 2018 American Institute of Chemical Engineers AIChE J, 64: 3625–3637, 2018

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“…Gradually, the liquid film with bubbles became turbulent. Hydrodynamic instability corresponds to a transition from pre-loading regime to the loading regime, which associates with a significant increase of liquid hold-up [28]. In the pre-loading regime with air volumetric flow rate from 0.0138 m 3 /s to 0.0162 m 3 /s, The ECT images of the bottom section show that the liquid hold-up and distribution patterns are stable.…”

Section: Pressure Dropmentioning

confidence: 99%