Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/26124
Type: Artigo de periódico
Title: Experimental dynamic evaluation of three-phase reactors
Author: Sales, F. G.
Maranhão, L. C. A.
Pereira, J. A. F. R.
Abreu, C. A. M.
Abstract: The hydrodynamic parameters were determined for two different three-phase systems (fluidized-bed and trickle-bed) through the experimental evaluation of the dynamic residence time distribution in the gas or liquid phase. For different fluid phase flow rates the fluidized-bed system was operated with a tracer in the gas phase and in the trickle-bed with a tracer in the liquid phase. The analysis of the processes was achieved through the application of different models representing the dynamic behavior of tracers present in the gas and liquid phases with a simulation of experimental operations of the three-phase reactors. The transfer functions developed for the two systems made it possible to estimate the hydrodynamic parameters providing the gas holdup (2.22 x 10-2 to 8.42 x 10-2) and the gas phase Peclet number (54.18 to 41.20) for the fluidized-bed and the liquid holdup (0.16 to 0.25), the liquid phase Peclet number (20.37 to 4.52) and wetting efficiency (0.34 to 0.56) for the trickle-bed.
Subject: Dynamic evaluation
Fluidized-bed
Trickle-bed
Residence time distribution
Tracers
Editor: Brazilian Society of Chemical Engineering
Rights: aberto
Identifier DOI: 10.1590/S0104-66322005000300012
Address: http://dx.doi.org/10.1590/S0104-66322005000300012
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322005000300012
Date Issue: 1-Sep-2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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