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Brazilian Journal of Chemical Engineering

Print version ISSN 0104-6632On-line version ISSN 1678-4383

Abstract

SAYER, C.  and  GIUDICI, R.. A COMPARISON OF DIFFERENT MODELING APPROACHES FOR THE SIMULATION OF THE TRANSIENT AND STEADY-STATE BEHAVIOR OF CONTINUOUS EMULSION POLYMERIZATIONS IN PULSED TUBULAR REACTORS. Braz. J. Chem. Eng. [online]. 2002, vol.19, n.1, pp.89-104. ISSN 1678-4383.  https://doi.org/10.1590/S0104-66322002000100007.

Dynamic mathematical models are developed to simulate styrene emulsion polymerization reactions carried out in pulsed tubular reactors. Two different modeling approaches, the tanks-in-series model and the axial dispersion model, are compared. The models developed were validated with experimental data from the literature and used to study the dynamics during transient periods, e.g., the start-up of the reactor and the response to disturbances. The effect of the Peclet number on process variables such as conversion and particle concentration was also verified.

Keywords : emulsion polymerization; tubular reactors; modeling; axial dispersion; n-CSTRs; styrene.

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