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Axial solids holdup distribution in a liquid–solid circulating fluidized bed / Vidyasagar Shilapuram in Industrial & engineering chemistry research, Vol. 51 N° 50 (Décembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 50 (Décembre 2012) . - pp. 16242-16250 Titre : Axial solids holdup distribution in a liquid–solid circulating fluidized bed : Effect of the liquid distributor, method of operation, and viscosity of the fluidizing media Type de document : texte imprimé Auteurs : Vidyasagar Shilapuram, Auteur ; P. S. T. Sai, Auteur Année de publication : 2013 Article en page(s) : pp. 16242-16250 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Viscosity  Circulating  fluidized  bed  Fluidization  Holdup Résumé : While the choice of the location of the liquid distributor in a liquid―solid circulating fluidized bed is application dependent, three different methods exist for operating the riser in the circulating fluidization regime. Experiments were conducted to study the effect of the location of the liquid distributor, method of operation, liquid viscosity, and solids inventory on the axial solids holdup distribution in the circulating fluidized bed regime. The results show that the location of the liquid distributor has a significant effect on axial solids holdup, and the axial solids holdups obtained by the three methods of operation are different under identical conditions. The variation of the axial solids holdup distribution with liquid viscosity with a solid inventory of 0.15 m was different from that with both 0.25 and 0.35 m solid inventories. There is significant interaction of the solids inventory and liquid viscosity on the axial solids holdup distribution. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26732150 [article] Axial solids holdup distribution in a liquid–solid circulating fluidized bed : Effect of the liquid distributor, method of operation, and viscosity of the fluidizing media [texte imprimé] / Vidyasagar Shilapuram, Auteur ; P. S. T. Sai, Auteur . - 2013 . - pp. 16242-16250. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 50 (Décembre 2012) . - pp. 16242-16250 Mots-clés : Viscosity  Circulating  fluidized  bed  Fluidization  Holdup Résumé : While the choice of the location of the liquid distributor in a liquid―solid circulating fluidized bed is application dependent, three different methods exist for operating the riser in the circulating fluidization regime. Experiments were conducted to study the effect of the location of the liquid distributor, method of operation, liquid viscosity, and solids inventory on the axial solids holdup distribution in the circulating fluidized bed regime. The results show that the location of the liquid distributor has a significant effect on axial solids holdup, and the axial solids holdups obtained by the three methods of operation are different under identical conditions. The variation of the axial solids holdup distribution with liquid viscosity with a solid inventory of 0.15 m was different from that with both 0.25 and 0.35 m solid inventories. There is significant interaction of the solids inventory and liquid viscosity on the axial solids holdup distribution. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26732150

Axial solids holdup distribution in a liquid–solid circulating fluidized bed / Vidyasagar Shilapuram in Industrial & engineering chemistry research, Vol. 51 N° 50 (Décembre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 50 (Décembre 2012) . - pp. 16242-16250 Titre : Axial solids holdup distribution in a liquid–solid circulating fluidized bed : Effect of the liquid distributor, method of operation, and viscosity of the fluidizing media Type de document : texte imprimé Auteurs : Vidyasagar Shilapuram, Auteur ; P. S. T. Sai, Auteur Année de publication : 2013 Article en page(s) : pp. 16242-16250 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Viscosity  Circulating  fluidized  bed  Fluidization  Holdup Résumé : While the choice of the location of the liquid distributor in a liquid―solid circulating fluidized bed is application dependent, three different methods exist for operating the riser in the circulating fluidization regime. Experiments were conducted to study the effect of the location of the liquid distributor, method of operation, liquid viscosity, and solids inventory on the axial solids holdup distribution in the circulating fluidized bed regime. The results show that the location of the liquid distributor has a significant effect on axial solids holdup, and the axial solids holdups obtained by the three methods of operation are different under identical conditions. The variation of the axial solids holdup distribution with liquid viscosity with a solid inventory of 0.15 m was different from that with both 0.25 and 0.35 m solid inventories. There is significant interaction of the solids inventory and liquid viscosity on the axial solids holdup distribution. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26732150 [article] Axial solids holdup distribution in a liquid–solid circulating fluidized bed : Effect of the liquid distributor, method of operation, and viscosity of the fluidizing media [texte imprimé] / Vidyasagar Shilapuram, Auteur ; P. S. T. Sai, Auteur . - 2013 . - pp. 16242-16250. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 50 (Décembre 2012) . - pp. 16242-16250 Mots-clés : Viscosity  Circulating  fluidized  bed  Fluidization  Holdup Résumé : While the choice of the location of the liquid distributor in a liquid―solid circulating fluidized bed is application dependent, three different methods exist for operating the riser in the circulating fluidization regime. Experiments were conducted to study the effect of the location of the liquid distributor, method of operation, liquid viscosity, and solids inventory on the axial solids holdup distribution in the circulating fluidized bed regime. The results show that the location of the liquid distributor has a significant effect on axial solids holdup, and the axial solids holdups obtained by the three methods of operation are different under identical conditions. The variation of the axial solids holdup distribution with liquid viscosity with a solid inventory of 0.15 m was different from that with both 0.25 and 0.35 m solid inventories. There is significant interaction of the solids inventory and liquid viscosity on the axial solids holdup distribution. ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=26732150

Influence of feed entry on the segregation of a binary mixture of solids in a continuous fast fluidized bed / K. Ganesh Palappan in Industrial & engineering chemistry research, Vol. 50 N° 23 (Décembre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 23 (Décembre 2011) . - pp. 13056–13065 Titre : Influence of feed entry on the segregation of a binary mixture of solids in a continuous fast fluidized bed Type de document : texte imprimé Auteurs : K. Ganesh Palappan, Auteur ; P. S. T. Sai, Auteur Année de publication : 2012 Article en page(s) : pp. 13056–13065 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Fast  fluidized Résumé : Studies on the influence of feed entry on segregation using continuous fast fluidization is not clearly understood even though studies are available on the segregation of particles in continuous bubbling/turbulent fluidized beds. In the present study, four different feed inlet positions are selected and tested in a 69 mm ID and 3.65 m height continuous fast fluidized bed. The feed is a binary mixture of solid particles of the same size, but different density. The inimitable observations noticed at various feed locations on fluidization behavior with segregation is discussed. Change in the feed inlet height of the fluidized bed is reflected drastically on the compositions of top and bottom products. Disparate behavior of continuous fluidization is noticed at selected feed inlet positions. Operation is not stable due to either particle congestion in the feeding line or nonuniform discharge of solids from the fluidized bed when the feed inlet position is located close to distributor. Further an enhanced-feed inlet location created a particle’s cloud above the dense phase. Excess of feed inlet height transformed the binary mixture severance and freeboard height. The optimum operating gas velocity required for maximum separation of both species is identified at every feed entry for different feed rates. A unique feed entry location is recognized for maximum separation of both the species and minimum gas. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie200093d [article] Influence of feed entry on the segregation of a binary mixture of solids in a continuous fast fluidized bed [texte imprimé] / K. Ganesh Palappan, Auteur ; P. S. T. Sai, Auteur . - 2012 . - pp. 13056–13065. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 23 (Décembre 2011) . - pp. 13056–13065 Mots-clés : Fast  fluidized Résumé : Studies on the influence of feed entry on segregation using continuous fast fluidization is not clearly understood even though studies are available on the segregation of particles in continuous bubbling/turbulent fluidized beds. In the present study, four different feed inlet positions are selected and tested in a 69 mm ID and 3.65 m height continuous fast fluidized bed. The feed is a binary mixture of solid particles of the same size, but different density. The inimitable observations noticed at various feed locations on fluidization behavior with segregation is discussed. Change in the feed inlet height of the fluidized bed is reflected drastically on the compositions of top and bottom products. Disparate behavior of continuous fluidization is noticed at selected feed inlet positions. Operation is not stable due to either particle congestion in the feeding line or nonuniform discharge of solids from the fluidized bed when the feed inlet position is located close to distributor. Further an enhanced-feed inlet location created a particle’s cloud above the dense phase. Excess of feed inlet height transformed the binary mixture severance and freeboard height. The optimum operating gas velocity required for maximum separation of both species is identified at every feed entry for different feed rates. A unique feed entry location is recognized for maximum separation of both the species and minimum gas. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie200093d