LrgpV1, Istex, Corpus, bibRecord, 000063

A hydrodynamic model for air-lift reactors

Identifieur interne : 000063 ( Istex/Corpus ); précédent : 000062; suivant : 000064

A hydrodynamic model for air-lift reactors

Auteurs : E. Camarasa ; E. Carvalho ; L. A. C. Meleiro ; R. Maciel Filho ; A. Domingues ; G. Wild ; S. Poncin ; N. Midoux ; J. Bouillard

Source :

Chemical Engineering & Processing: Process Intensification [ 0255-2701 ] ; 2001.

RBID : ISTEX:6F2C3102E5C2DD33C505DB19BF0B28A3D4518DD0

English descriptors

KwdEn :
- Air-lift reactor, Airlift reactors, Aqueous solution, Axial position, Axial variation, Bubble coalescence, Bubble columns, Bubble diameter, Bubble size, Camarasa, Chem, Chemical engineering, Circulation velocity, Downcomer, Dynamic model, Elsevier science, Energy balance, Experimental data, Friction factor, Friction multiplier, Garcia calvo, Gas hold-up, Generalized hydrodynamic model, Great care, Hydrodynamic, Hydrodynamic model, Hydrodynamics, Industrial reactors, Industrial system, Interfacial area, Liquid circulation, Liquid circulation velocity, Liquid dispersion height, Liquid phase, Liquid separator, Liquid velocities, Liquid velocity, Local values, Maciel filho, Mass transfer, Model equations, Modeling, Momentum balance, Photographic technique, Pilot plant, Pressure pdist, Pure water, Reactor, Rhodia brasil ltda, Riser, Riser bottom, Schematic representation, Static pressure, Total pressure drop, Usual loss, Velocity 6ldist.
Teeft :
- Airlift reactors, Aqueous solution, Axial position, Axial variation, Bubble coalescence, Bubble columns, Bubble diameter, Bubble size, Camarasa, Chem, Chemical engineering, Circulation velocity, Downcomer, Dynamic model, Elsevier science, Energy balance, Experimental data, Friction factor, Friction multiplier, Garcia calvo, Generalized hydrodynamic model, Great care, Hydrodynamic, Hydrodynamic model, Industrial reactors, Industrial system, Interfacial area, Liquid circulation, Liquid circulation velocity, Liquid dispersion height, Liquid phase, Liquid separator, Liquid velocities, Liquid velocity, Local values, Maciel filho, Mass transfer, Model equations, Momentum balance, Photographic technique, Pilot plant, Pressure pdist, Pure water, Reactor, Rhodia brasil ltda, Riser, Riser bottom, Schematic representation, Static pressure, Total pressure drop, Usual loss, Velocity 6ldist.

Abstract

Abstract: A generalized hydrodynamic model for industrial air-lift reactors has been developed. The model has been adapted to the industrial system with experimental data collected in an air-lift pilot plant operating with water/butanol as the liquid phase. The model calculates liquid circulation velocity and gas hold-up, parameters which are needed for the industrial general air-lift model for performance prediction. Agreement between the hydrodynamic model and pilot experimental points is shown to be fairly good. In addition, measurements of bubble diameter in the water/butanol medium are presented. They are used for interfacial area calculation.

Url:

https://api.istex.fr/document/6F2C3102E5C2DD33C505DB19BF0B28A3D4518DD0/fulltext/pdf

DOI: 10.1016/S0255-2701(00)00131-8

Links to Exploration step

ISTEX:6F2C3102E5C2DD33C505DB19BF0B28A3D4518DD0

Le document en format XML

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<front><div type="abstract" xml:lang="en">Abstract: A generalized hydrodynamic model for industrial air-lift reactors has been developed. The model has been adapted to the industrial system with experimental data collected in an air-lift pilot plant operating with water/butanol as the liquid phase. The model calculates liquid circulation velocity and gas hold-up, parameters which are needed for the industrial general air-lift model for performance prediction. Agreement between the hydrodynamic model and pilot experimental points is shown to be fairly good. In addition, measurements of bubble diameter in the water/butanol medium are presented. They are used for interfacial area calculation.</div>
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<abstract>A generalized hydrodynamic model for industrial air-lift reactors has been developed. The model has been adapted to the industrial system with experimental data collected in an air-lift pilot plant operating with water/butanol as the liquid phase. The model calculates liquid circulation velocity and gas hold-up, parameters which are needed for the industrial general air-lift model for performance prediction. Agreement between the hydrodynamic model and pilot experimental points is shown to be fairly good. In addition, measurements of bubble diameter in the water/butanol medium are presented. They are used for interfacial area calculation.</abstract>
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<notesStmt><note type="content">Fig. 1: Air-lift reactor.</note>
<note type="content">Fig. 2: Distributors.</note>
<note type="content">Fig. 3: Schematic principle of the flowmeter.</note>
<note type="content">Fig. 4: Arrangement of the photographic technique.</note>
<note type="content">Fig. 5: Examples of photographs of bubbles (UG=1.7 cm s−1). (a) Water, (b) water/butanol.</note>
<note type="content">Fig. 6: Schematic representation of the air-lift reactor.</note>
<note type="content">Fig. 7: Energy balance at the distributor.</note>
<note type="content">Fig. 8: Comparison of model with experimental points (water/butanol medium).</note>
<note type="content">Fig. 9: Axial variation of gas hold-up (multiple-orifice nozzle 1, water/butanol medium).</note>
<note type="content">Fig. 10: Bubble size as a function of superficial gas velocity.</note>
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<abstract xml:lang="en"><p>A generalized hydrodynamic model for industrial air-lift reactors has been developed. The model has been adapted to the industrial system with experimental data collected in an air-lift pilot plant operating with water/butanol as the liquid phase. The model calculates liquid circulation velocity and gas hold-up, parameters which are needed for the industrial general air-lift model for performance prediction. Agreement between the hydrodynamic model and pilot experimental points is shown to be fairly good. In addition, measurements of bubble diameter in the water/butanol medium are presented. They are used for interfacial area calculation.</p>
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<head><ce:title>A hydrodynamic model for air-lift reactors</ce:title>
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<ce:abstract-sec><ce:simple-para>A generalized hydrodynamic model for industrial air-lift reactors has been developed. The model has been adapted to the industrial system with experimental data collected in an air-lift pilot plant operating with water/butanol as the liquid phase. The model calculates liquid circulation velocity and gas hold-up, parameters which are needed for the industrial general air-lift model for performance prediction. Agreement between the hydrodynamic model and pilot experimental points is shown to be fairly good. In addition, measurements of bubble diameter in the water/butanol medium are presented. They are used for interfacial area calculation.</ce:simple-para>
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<ce:keyword><ce:text>Hydrodynamics</ce:text>
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<abstract lang="en">Abstract: A generalized hydrodynamic model for industrial air-lift reactors has been developed. The model has been adapted to the industrial system with experimental data collected in an air-lift pilot plant operating with water/butanol as the liquid phase. The model calculates liquid circulation velocity and gas hold-up, parameters which are needed for the industrial general air-lift model for performance prediction. Agreement between the hydrodynamic model and pilot experimental points is shown to be fairly good. In addition, measurements of bubble diameter in the water/butanol medium are presented. They are used for interfacial area calculation.</abstract>
<note type="content">Fig. 1: Air-lift reactor.</note>
<note type="content">Fig. 2: Distributors.</note>
<note type="content">Fig. 3: Schematic principle of the flowmeter.</note>
<note type="content">Fig. 4: Arrangement of the photographic technique.</note>
<note type="content">Fig. 5: Examples of photographs of bubbles (UG=1.7 cm s−1). (a) Water, (b) water/butanol.</note>
<note type="content">Fig. 6: Schematic representation of the air-lift reactor.</note>
<note type="content">Fig. 7: Energy balance at the distributor.</note>
<note type="content">Fig. 8: Comparison of model with experimental points (water/butanol medium).</note>
<note type="content">Fig. 9: Axial variation of gas hold-up (multiple-orifice nozzle 1, water/butanol medium).</note>
<note type="content">Fig. 10: Bubble size as a function of superficial gas velocity.</note>
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A hydrodynamic model for air-lift reactors

A hydrodynamic model for air-lift reactors

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