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 ENG  Vol.3 No.7 , July 2011
Suiting Dynamic Models of Fixed-Bed Catalytic Reactors for Computer-Based Applications
Abstract: This work investigated the applicability of heterogeneous and pseudo-homogeneous models to predict the dynamic behavior of a fixed-bed catalytic reactor. Some issues concerning the dynamic behavior of the system were discussed, such as the prediction of the inverse response phenomenon. The proposed models (Het- erogeneous I and II and Pseudo-homogeneous) were able to predict with qualitative similarity the main characteristics of the dynamic behavior of a fixed-bed catalytic reactor, including the inverse response. The computational time demanded for the solution of the heterogeneous models was 10 to 50% longer than in the case of the pseudo-homogeneous model, making the use of the former suitable for applications where computational time is not the major restriction (off-line applications). On the other hand, when on-line applications are required, the simplified model (Pseudo-homogeneous model) showed to be a good alternative because this model was able to predict (qualitatively) the dynamics of the reactor using a faster and easier numerical solution.
Cite this paper: nullE. Toledo, E. Morais, D. Melo, A. Mariano, J. Meyer and R. Filho, "Suiting Dynamic Models of Fixed-Bed Catalytic Reactors for Computer-Based Applications," Engineering, Vol. 3 No. 7, 2011, pp. 778-785. doi: 10.4236/eng.2011.37094.
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