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Experimental Study of Simultaneous Heat and Mass Transfer in Falling Film and Bubble Mode (LiCl) Absorbers [PDF]
Engineering and Technology Journal, 2012 The study involves lithium-Chloride absorption process for the falling film and bubble columns absorbers, working at the same operating conditions. The results obtained were used to analyze the transfer process during the absorption of water vapor in the
Kamal M. Ahmad +2 more
doaj +1 more source
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
core +1 more source
KAGAKU KOGAKU RONBUNSHU, 2001 気泡塔のガスホールドアップに対する圧力の影響をガス分散器として用いた単一ノズルの内径およびガスの種類をN2とCO2に変化させて実験的に検討した．単一ノズルの内径が4.0mmの場合にはガスホールドアップに対する圧力の影響はガスの種類によらずほとんど認められなかった．単一ノズルの内径が1.4mmでN2を用いた場合には，ガスホールドアップは圧力とともに増加した．単一ノズルの内径が1.4mmでCO2を用いた場合には，ガスホールドアップは0.6MPa付近まで圧力と共に増加した，さらに圧力が上昇するとガスホールドアップは減少した．塔壁面での気泡の写真撮影および塔中心部での気泡頻度の測定を行い，前述の現象の原因について実験的に検討した．
Ishiyama, Hiroshi +3 more
openaire +1 more source
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
core +1 more source
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
core +1 more source
Investigation of Operating Parameters’ Effects on Bubble Characteristics in a Co-Current Downflow Bubble Column [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2022 Bubble columns are frequently employed as multiphase reactors and gas-liquid contactors. In the bubble column, gas is dispersed into the liquid phase. The dispersion of gas into a liquid is the function of bubble size and its distribution.
Rohit Meshram +3 more
doaj +1 more source
Chemical Engineering Transactions, 2013 Bubble columns are multiphase contact devices for mass and heat transfer, which are intensively used in different industrial areas. Flow and turbulence in these equipments are induced by bubble rise motion.
D.I. Sanchez-Forero +4 more
doaj +1 more source
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
core +1 more source
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
core +1 more source
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
doaj +1 more source