Networks of catalytic reactors with periodically rotated inlet and outlet ports are studied. A first order irreversible exothermic reaction is considered and the influence of thermal dispersion on the stability limits of periodic regimes corresponding to trains of traveling temperature waves is examined. The dependence of the minimum adiabatic temperature rise sustaining the emergence of temperature wave trains on the enthalpy Peclet number, and on the structure of the spatiotemporal temperature pattern (number of waves and average wave width) is described. The mechanisms determining the evolution of the maximum temperature with the adiabatic temperature rise, the enthalpy Peclet number, the switch time, and the structure of the spatiotemporal temperature pattern are identified. The results provide indications on how to design and operate the network so as to generate temperature wave trains with prescribed structure, maximum temperature and stability limits. © 2012 Elsevier Ltd.

Temperature wave trains of the loop reactor: The effect of thermal dispersion / Altimari, Pietro; Mancusi, Erasmo; Brasiello, Antonio; Pier Luca Maffettone, ; Silvestro, Crescitelli. - In: CHEMICAL ENGINEERING SCIENCE. - ISSN 0009-2509. - STAMPA. - 76:(2012), pp. 108-119. [10.1016/j.ces.2012.04.013]

Temperature wave trains of the loop reactor: The effect of thermal dispersion

ALTIMARI, PIETRO;Antonio Brasiello;
2012

Abstract

Networks of catalytic reactors with periodically rotated inlet and outlet ports are studied. A first order irreversible exothermic reaction is considered and the influence of thermal dispersion on the stability limits of periodic regimes corresponding to trains of traveling temperature waves is examined. The dependence of the minimum adiabatic temperature rise sustaining the emergence of temperature wave trains on the enthalpy Peclet number, and on the structure of the spatiotemporal temperature pattern (number of waves and average wave width) is described. The mechanisms determining the evolution of the maximum temperature with the adiabatic temperature rise, the enthalpy Peclet number, the switch time, and the structure of the spatiotemporal temperature pattern are identified. The results provide indications on how to design and operate the network so as to generate temperature wave trains with prescribed structure, maximum temperature and stability limits. © 2012 Elsevier Ltd.
2012
network of reactors; pattern formation; periodically forced reactors; simulated moving bed; temperature fronts; wave trains
01 Pubblicazione su rivista::01a Articolo in rivista
Temperature wave trains of the loop reactor: The effect of thermal dispersion / Altimari, Pietro; Mancusi, Erasmo; Brasiello, Antonio; Pier Luca Maffettone, ; Silvestro, Crescitelli. - In: CHEMICAL ENGINEERING SCIENCE. - ISSN 0009-2509. - STAMPA. - 76:(2012), pp. 108-119. [10.1016/j.ces.2012.04.013]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/443496
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