Prediction of bubble size in Bubble columns using Artificial Neural Network
Iraqi Journal of Chemical and Petroleum Engineering, 2009 In the literature, several correlations have been proposed for bubble size prediction in bubble columns. However these correlations fail to predict bubble diameter over a wide range of conditions. Based on a data bank of around 230 measurements collected
Nada Sadoon Ahmed zeki
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Numerical and experimental investigation of a confined plunging liquid jet system [PDF]
, 2012 In a confined plunging liquid jet (CPLJ) system, a liquid jet is allowed to fall in a partially submerged narrow downcomer tube. Liquid jet impingement at gas-liquid interface leads to entrainment of gas, which is dispersed down the downcomer tube in to ...
Mishra, A.
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Gas hold-up and bubble diameters in a gassed oscillatory baffled column [PDF]
, 2001 In this paper attempts are made to address how bubble behaviour in a batch oscillatory ba'ed column (OBC) contributes to the overall measured enhancement in mass transfer.
Ni, X., Oliveira, Monica
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Hydrodynamics and mass transfer in bubble column: Influence of liquid phase surface tension [PDF]
, 2007 According to literature, few experiments are performed in organic solvents which are mostly used in commercial gas–liquid reactors. However, it is commonly accepted that data obtained in aqueous solution allow to predict the surface tension effects, and ...
Billet, Anne-Marie +2 more
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Bubble formation at a flexible orifice with liquid cross-flow [PDF]
, 2004 In waste water treatment, biological processes for denitrification and nitrification are performed using oxidation ditches. In these reactors, the mixing and the aeration functions are dissociated: a bubble cloud is generated from flexible membrane ...
Hebrard, Gilles +3 more
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Experiments and modelling of a draft tube airlift reactor operated at high gas throughputs [PDF]
, 2013 One-dimensional modelling of global hydrodynamics and mass transfer is developed for an annulus sparged draft tube airlift reactor operating at high gas throughputs.
Colombet, Damien +3 more
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Influence of liquid surface tension (surfactants) on bubble formation at rigid and flexible orifices [PDF]
, 2004 The influence of liquid surface tension on the bubble formation from both rigid and flexible orifice has been investigated. The liquid phases under test are aqueous solutions with butanol or surfactants (cationic, non-ionic and anionic); static and ...
Hebrard, Gilles, Loubière, Karine
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Bubble formation from a flexible hole submerged in an inviscid liquid [PDF]
, 2003 In the waste water treatment industry, a novel gas sparger based on flexible membranes has been used for the last ten years. The objective of the present work is to study the bubble formation generated from a flexible orifice (membrane).
Hebrard, Gilles, Loubière, Karine
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Mass transfer in bubble column for industrial conditions—effects of organic medium, gas and liquid flowrates and column design [PDF]
, 2005 Most of available gas–liquid mass transfer data in bubble column have been obtained in aqueous media and in liquid batch conditions, contrary to industrial chemical reactor conditions.
Billet, Anne-Marie +4 more
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Fluids, 2023 This article focuses on the prediction of the small bubble holdups (assuming the existence of two major bubble classes) in two bubble columns (0.289 m in ID and 0.102 m in ID), operated with organic liquids under various conditions (including high ...
Stoyan Nedeltchev
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