caa a22 4500 378927787 CHVBK 20180305123622.0 cr unu---uuuuu 161128e20040506xx s 000 0 eng 10.2202/1542-6580.1106 doi (NATIONALLICENCE)gruyter-10.2202/1542-6580.1106 Phase Mixing Modeling in Multiphase Reactors Containing Gas Bubble: a Review [Elektronische Daten] [Sylvain Lefebvre, Jamal Chaouki, Christophe Guy] Multiphase reactors are often used as petrochemical, biological and pharmaceutical reactors. Understanding the mixing mechanism responsible for phase mixing is necessary for modeling purposes. Phase mixing may considerably affect reactor performance. In the literature, each phase mixing was often described by the Axial Dispersion Model (ADM), without physical justification. Some authors doubted the validity of the ADM and that it could represent the mixing of the phases and instead proposed other models. Also, some authors studied the fundamental mechanism responsible for phase mixing. For conversion and selectivity prediction purposes, the use of more complex phenomenological phase mixing models is essential when the kinetics are rapid and the interfacial mass transfer is limited. Many literature reviews concerning multiphase reactors have been published. These reviews, however, discuss phase mixing modeling based on the ADM and do not deal with the other phase mixing models. The aim of this work is to review the literature on phase mixing modeling, based on a mechanistic approach, for three kinds of multiphase reactors: the bubble column (solid free), slurry bubble column (small/light particles) and three phase fluidized bed (large/heavy particles) reactors. The common feature of these reactors is the presence of gas bubbles, which considerably influence the phase hydrodynamic. Hence, a mixing model proposed for one of these reactors may be conceptually representative of the mixing of the two others. ©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston Lefebvre Sylvain Ecole polytechnique de Montreal, s.lefebvre@polymtl.ca aut Chaouki Jamal Ecole Polytechnique Montreal, jamal.chaouki@polymtl.ca aut Guy Christophe Ecole Polytechnique, christophe.guy@polymtl.ca aut International Journal of Chemical Reactor Engineering De Gruyter 2/1(2004-05-06) 2:1 2004 2 ijcre https://doi.org/10.2202/1542-6580.1106 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.2202/1542-6580.1106 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lefebvre Sylvain Ecole polytechnique de Montreal, s.lefebvre@polymtl.ca aut NATIONALLICENCE 700 1- Chaouki Jamal Ecole Polytechnique Montreal, jamal.chaouki@polymtl.ca aut NATIONALLICENCE 700 1- Guy Christophe Ecole Polytechnique, christophe.guy@polymtl.ca aut NATIONALLICENCE 773 0- International Journal of Chemical Reactor Engineering De Gruyter 2/1(2004-05-06) 2:1 2004 2 ijcre CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter