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Hydrodynamics of a multistage countercurrent fluidized bed reactor with downcomer for lime-dolomite mixed particle system / C. R. Mohanty in Industrial & engineering chemistry research, Vol. 47 N°18 (Septembre 2008) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 47 N°18 (Septembre 2008) . - p. 6917–6924 Titre : Hydrodynamics of a multistage countercurrent fluidized bed reactor with downcomer for lime-dolomite mixed particle system Type de document : texte imprimé Auteurs : C. R. Mohanty, Auteur ; Sivaji Adapala, Auteur ; B. C. Meikap, Auteur Année de publication : 2008 Article en page(s) : p. 6917–6924 Note générale : Chemical engineering Langues : Anglais (eng) Mots-clés : Fluidized  bed  reactor  Multistage  system Résumé : In the present investigation, a multistage countercurrent gas−solid fluidized bed reactor with downcomer has been proposed. The basic operating parameters have been developed illustrating the mechanism of gas−solid contacting in the system. The system was operated in three stages in series one above the other in continuous regime for a two-phase system over a wide range of operating conditions including varying the weir height in order to determine the pressure drop. The data were generated under steady and stable operation of the column. The solids holdup of the proposed multistage system is higher than the single-stage system, which results in better mass-transfer characteristics. The results in this study assume importance from the standpoint of design and steady operation of a multistage fluidized bed reactor for control of gaseous pollutants. The fluidizing gas was air, and the solid phase was a mixture of dolomite and lime in varying proportions. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8007693 [article] Hydrodynamics of a multistage countercurrent fluidized bed reactor with downcomer for lime-dolomite mixed particle system [texte imprimé] / C. R. Mohanty, Auteur ; Sivaji Adapala, Auteur ; B. C. Meikap, Auteur . - 2008 . - p. 6917–6924. Chemical engineering Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 47 N°18 (Septembre 2008) . - p. 6917–6924 Mots-clés : Fluidized  bed  reactor  Multistage  system Résumé : In the present investigation, a multistage countercurrent gas−solid fluidized bed reactor with downcomer has been proposed. The basic operating parameters have been developed illustrating the mechanism of gas−solid contacting in the system. The system was operated in three stages in series one above the other in continuous regime for a two-phase system over a wide range of operating conditions including varying the weir height in order to determine the pressure drop. The data were generated under steady and stable operation of the column. The solids holdup of the proposed multistage system is higher than the single-stage system, which results in better mass-transfer characteristics. The results in this study assume importance from the standpoint of design and steady operation of a multistage fluidized bed reactor for control of gaseous pollutants. The fluidizing gas was air, and the solid phase was a mixture of dolomite and lime in varying proportions. En ligne : http://pubs.acs.org/doi/abs/10.1021/ie8007693