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Effect of Plate Wettability on Dispersed-Phase Holdup in a Pulsed Disc-and-Doughnut Solvent Extraction Column [PDF]
Solvent Extraction and Ion Exchange, 2017 The effect of plate wettability on the dispersed-phase holdup in a pulsed disc-and-doughnut solvent extraction column is presented.
Teobaldo Grabin +4 more
semanticscholar +5 more sources
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Chemical Engineering Research and Design, 2016
Abstract In this research work, liquid–liquid extraction via three different systems has been investigated for determination of holdup, flooding velocities and holdup at the flooding points in a multistage column extractor. The effects of various parameters including rotor speed and dispersed and continuous phase velocities were studied.
Shahrokh Shahhosseini +2 more
exaly +3 more sources
Abstract In this research work, liquid–liquid extraction via three different systems has been investigated for determination of holdup, flooding velocities and holdup at the flooding points in a multistage column extractor. The effects of various parameters including rotor speed and dispersed and continuous phase velocities were studied.
Shahrokh Shahhosseini +2 more
exaly +3 more sources
Unified new correlation for prediction of dispersed phase holdup in agitated extraction columns
Separation and Purification Technology, 2016Abstract Dispersed phase holdup data have been obtained for Kuhni and ORC columns with investigation on three different systems (toluene–water, n-butyl acetate–water, n-butanol–water). The effects of operational variables such as mass transfer directions with acetone transfer, rotor speed and dispersed and continuous phase velocities have been ...
Mehdi Asadollahzadeh +2 more
exaly +3 more sources
Experimental investigation of slip velocity and dispersed phase holdup in a Kühni extraction column
Asia-Pacific Journal of Chemical Engineering, 2017AbstractSlip velocity in the solvent extraction columns is the relative velocity of drops with respect to the continuous phase and defines as the sum of the linear velocities of the two phases. In this research, slip velocity and dispersed phase holdup in a pilot plant‐scale Kühni extraction column has been investigated experimentally.
Ahad Ghaemi, Meisam Torab-Mostaedi
exaly +3 more sources
CFD simulations to predict dispersed phase holdup in a pulsed sieve plate column
Separation Science and Technology, 2018A predictive two-phase CFD model requiring no experimental input is used to estimate dispersed phase holdup in a pulsed sieve plate column (PSPC).
Nirvik Sen, A W Patwardhan, K T Shenoy
exaly +3 more sources
Dispersed phase holdup and drop size distribution in pulsed plate columns
Canadian Journal of Chemical Engineering, 1988AbstractDispersed phase holdup was measured in a pulsed plate column for the kerosene‐water system under binary conditions and under solute transfer from dispersed to continuous and continuous to dispersed phases. The experimental data were satisfactorily modelled through a recirculation regime model.The drop size distribution, measured by a ...
Anil Prabhakar, Y B G Varma
exaly +3 more sources
A model of droplet breakup in a turbulent flow for a high dispersed phase holdup
Chemical Engineering Science, 2020A model of droplet breakup during formation of a dense emulsion in a turbulent flow is developed. Droplet fluctuation velocities, eventually causing breakup, are determined using the kinetic theory of granular media. For model validation, an experimental
D. Eskin +3 more
semanticscholar +2 more sources
Canadian Journal of Chemical Engineering, 2009
AbstractDispersed phase holdup and slip velocity of phases were measured in a pilot plant pulsed packed column with a diameter of 76.2 mm for two different chemical systems in conditions with and without mass transfer. The effects of pulsation intensity, dispersed and continuous phases flow rates, interfacial tension and solute concentration on ...
Jaber Safdari, Hossein Bahmanyar
exaly +3 more sources
AbstractDispersed phase holdup and slip velocity of phases were measured in a pilot plant pulsed packed column with a diameter of 76.2 mm for two different chemical systems in conditions with and without mass transfer. The effects of pulsation intensity, dispersed and continuous phases flow rates, interfacial tension and solute concentration on ...
Jaber Safdari, Hossein Bahmanyar
exaly +3 more sources
Effect of Plate Material on Dispersed-Phase Holdup in a Karr Reciprocating Plate Column
Solvent Extraction and Ion Exchange, 2011Abstract The effect of plate material on the dispersed-phase holdup in a Karr reciprocating plate column is studied. Existing models cannot predict the observed degradation of the performance of plates as they foul. Experimental data of dispersed-phase holdup have been obtained for a 10 vol% tributyl phosphate/kerosene-phenol-water system in a 50 mm ...
Geoffrey W. Stevens, Shufeng Shen
exaly +3 more sources