Dispersion axiale et transfert de matière liquide-solide en fluidisation à trois phases

Dispersion axiale et transfert de matière liquide-solide en fluidisation à trois phases PDF Author: Chang-Ho Kim
Publisher:
ISBN:
Category :
Languages : fr
Pages : 234

Book Description
LE COMPORTEMENT HYDRODYNAMIQUE, LA DISPERSION AXIALE ET LE TRANSFERT DE MATIERE LIQUIDE-SOLIDE ONT ETE ANALYSEES EN COUCHE FLUIDISEE A TROIS PHASES PAR TECHNIQUE D'ECHANGE D'IONS. LE SOLIDE DISPERSE EST DE LA RESINE CATIONIQUE DUOLITE C 20 D, DE DIAMETRE MOYEN 1 MM, LE LIQUIDE DE L'EAU ET LE GAZ DE L'AIR. L'ETUDE HYDRODYNAMIQUE A PERMIS DE CARACTERISER LE DOMAINE DES CONDITIONS OPERATOIRES QUI POUVAIT ETRE BALAYE, 0.5

Recent Trends in Chemical Reaction Engineering

Recent Trends in Chemical Reaction Engineering PDF Author: B. D. Kulkarni
Publisher:
ISBN:
Category : Chemical reactors
Languages : en
Pages : 588

Book Description


Deux études de transfert de matière

Deux études de transfert de matière PDF Author: Hai Huang
Publisher:
ISBN:
Category :
Languages : fr
Pages : 244

Book Description
1)UNE NOUVELLE METHODE DE DETERMINATION DES PARAMETRES CARACTERISTIQUES D'UN CONTACTEUR A DEUX PHASES FLUIDES MOBILES, BASEE SUR LE SUIVI D'UN TRACEUR TRANSFERABLE, PAR TRANSFORMATION DE FOURIER DES EQUATIONS PISTON-DISPERSION DES DEUX PHASES, ET IDENTIFICATION DANS LE DOMAINE FREQUENTIEL EST ETUDIEE DU POINT DE VUE NUMERIQUE. LES RESULTATS DE SIMULATIONS OU DES "ERREURS EXPERIMENTALES" SONT INTRODUITES PRECISENT LES PRECAUTIONS OPERATOIRES A OBSERVER DANS L'EXPERIENCE FUTURE. 2)LE TRANSFERT GAZ-LIQUIDE EN FLUIDISATION GAZ-LIQUIDE-SOLIDE EST ETUDIE EXPERIMENTALEMENT PAR ENREGISTREMENT DES PROFILS DE CONCENTRATION ET PAR TRACAGE ELECTROLYTIQUE DE LA PHASE CONTINUE LIQUIDE. PAR IDENTIFICATION, ON DEDUIT LES PARAMETRES COMPLETS DU MODELE PISTON DISPERSION: DEGRES DE VIDE, DISPERSION AXIALE DU LIQUIDE, COEFFICIENT DE TRANSFERT VOLUMETRIQUE K::(L)A. DANS LE CAS DE PARTICULES DENSES, LE COEFFICIENT K::(L)A DIMINUE A L'ENTREE DE LA COLONNE, EN RAISON PROBABLEMENT DE LA COALESCENCE. ON OBSERVE TOUJOURS UN BON ACCORD ENTRE LES DEUX DETERMINATIONS DU NOMBRE DE PECLET (TRACAGE ET PROFIL DE CONCENTRATION). 3)LE TRANSFERT LIQUIDE-SPHERE SOLIDE EST ANALYSE NUMERIQUEMENT JUSQU'A DES NOMBRES DE SCHMIDT TRES ELEVES (L SC 25600) PAR DISSOCIATION DE L'INTEGRATION DES EQUATIONS DU MOUVEMENT (ROTATIONNEL ET FONCTION DE COURANT) ET DE L'EQUATION DE TRANSFERT DE MATIERE, REALISE SUR UNE COUCHE BEAUCOUP PLUS MINCE. LA COMPARAISON AVEC LES RESULTATS DE DELMAS PRECISE LE DOMAINE DE VALIDITE DE LA SOLUTION, RE 300 SUR TOUTE LA SPHERE ET RE 2000 SUR LA PARTIE FRONTALE

Transfert de matière liquide-particules en fluidisation à trois phases

Transfert de matière liquide-particules en fluidisation à trois phases PDF Author: Saïd Mohammed Abdel-Magid Hassanien (auteur d'une thèse de sciences.)
Publisher:
ISBN:
Category :
Languages : fr
Pages :

Book Description


Chemical Reactors

Chemical Reactors PDF Author: Pierre Trambouze
Publisher: Editions OPHRYS
ISBN: 9782710811244
Category :
Languages : en
Pages : 694

Book Description
This in-depth revision provides a summary of current knowledge, updated based on the most recent literature in the field. The reader will find recommendations on the choice of correlations to apply, depending on the case, and useful references to the original documents on industrial processes. This practical user's guide is designed for engineers in industries involved with the problems of chemical transformations, and for professors and students of process engineering. Whether the reader is working in a design department, an engineering firm or an R&D department, or is managing production plants, he will find material here that is directly applicable to the solution of his problems.Contents: 1. Definitions and fundamental concepts. 2. Single-phase reactors. 3. General characteristics of reactors with two fluid phases. 4. Experimental data and correlations for gas-liquid reactors. 5. Experimental data and correlations for liquid-liquid reactors. 6. General characteristics of heterogeneous catalytic reactors. 7. Reactors employing a fluid phase and a catalytic solid phase: fixed bed, moving bed, fluidized bed. 8. Three-phase reactors: gas, liquid, and catalytic solid. 9. Case studies. 10. Multifunctional reactors and future developments. General nomenclature. Index.

International Symposium on Liquid-liquid Two Phase Flow and Transport Phenomena

International Symposium on Liquid-liquid Two Phase Flow and Transport Phenomena PDF Author: D. M. Maron
Publisher: Begell House Publishers
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 628

Book Description
The proceedings of this symposium, held in Antalya, Turkey, November 3-7, 1997, cover topics such as flow patterns in oil-water systems; flow characteristics; flow phenomena in two fluid systems; modeling of transport phenomena in liquid-liquid systems; mass transfer in liquid-liquid systems; transport phenomena in two-fluid systems; two fluid systems and applications; separation of liquid liquid emulsions; liquid-liquid separation, phenomena, and equipment; interfacial phenomena; stability and transitions; measurement and instrumentation; and liquid-liquid mixing phenomena and equipment.

Petroleum Abstracts

Petroleum Abstracts PDF Author:
Publisher:
ISBN:
Category : Petroleum
Languages : en
Pages : 1608

Book Description


The Phenomena of Fluid Motions

The Phenomena of Fluid Motions PDF Author: Robert S. Brodkey
Publisher: Gary Tatterson
ISBN: 9780972663571
Category : Technology & Engineering
Languages : en
Pages : 752

Book Description
Notable for its thoroughness and clarity, this well-written graduate-level text presents the theoretical background of fluid flow from the standpoint of the transport phenomena, relating momentum transport to other transport mechanisms. The book is divided into three main sections: Part I-A Theoretical Background to Fluid Flow; Part II-Applications of the Basic Flow Equations; Part III-Extensions of the Basic Flow Equations. When this book was first written, there was no single text, suitable for graduate students, dealing with fluid motion. It remained for Professor Brodkey (Emeritus, Chemical Engineering, Ohio State University) to tie together the disparate threads of the topic in a clear, well-organized exposition. To make the book as accessible as possible to first-year graduate students, the author introduces the simplifying method of vector notation, and vector and tensor notation are developed as an integral part of the first few chapters. Part I provides a theoretical background to fluid flow, as well as introducing the equations of change and the various flux vectors of transport theory, and culminates in the derivation of the Navier-Stokes equations. Part II focuses on standard applications of the flow equations: inviscid flows, exact and boundary-layer solutions of the laminar-flow equations, integral methods, dimensional analysis and one-dimensional compressible flow. Part III, comprising the major portion of the book, covers phenomenological and statistical theories of turbulence, non-Newtonian phenomena and multiphase flow. Although it is designed for chemical engineering students, this book covers a wide range of topics not ordinarily found in fluid mechanics textbooks, making it an invaluable sourcebook for any engineer concerned with real-life fluid flow problems. The text includes carefully selected problems throughout to strengthen the reader's grasp of the material, and an exhaustive bibliography suggests further reading. Unabridged and corrected republication (2005) of the edition first published by Addison-Wesley Publishing Company, Reading, Mass., 1967. 268 illustrations (including 27 photographs). Preface. Author and subject indexes. Bibliography. Problems. xiv + 737pp. 6% x 9%. Paperbound.

Processing of Solid–Liquid Suspensions

Processing of Solid–Liquid Suspensions PDF Author: P. Ayazi Shamlou
Publisher: Elsevier
ISBN: 1483162141
Category : Technology & Engineering
Languages : en
Pages : 345

Book Description
Processing of Solid-Liquid Suspensions is a collection of articles from several industrialists and academicians who are active in fundamental and applied research relating to handling and processing of particles in liquids. This collection of papers deals with the processes of interaction of particles with each other, with the surrounding liquid and process equipment, whereby knowledge of the mechanism of these interactions can be a sound basis for improving the design of the process equipment and create an optimum environment for the formation and processing of the particulate. The above notion is explained through analysis of the role of turbulent aggregation and breakup of particles in the formation of many solid products from aqueous solutions. This book also analyzes particle size and particulate crystals, whether as final products or as intermediates during processing. In the purification of proteins, two essential units of operation are used; precipitation and solid-liquid separation are analyzed, where theoretical considerations are reviewed. This text also discusses the application of model suspensions in the design of aerobic fermenters in practical industrial uses. High concentration of suspension preparations and solid suspension in liquid flourized beds or in stirred vessels are explained in more detail as to how these affect certain industries. This selection finally presents the progress made in developing design and methods needed by industry. Researchers, chemists, and scientists in industry, as well as advanced students with interests in formation and processing of stable suspensions and in advanced process engineering courses will find this textbook a valuable aid.

Models for Flow Systems and Chemical Reactors

Models for Flow Systems and Chemical Reactors PDF Author: Chin-Yung Wen
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 598

Book Description