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Comparative Numerical Simulations of a Packed Bed Membrane Reactor


Tota,  A.
Physical and Chemical Foundations of Process Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society;
Otto-von-Guericke-Universität Magdeburg, External Organizations;

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Tota, A., Georgieva, K., Mangold, M., & Skrzypacz, P. (2004). Comparative Numerical Simulations of a Packed Bed Membrane Reactor. Poster presented at ICCMR-6: 6th International Conference on Catalysis in Membrane Reactor, Lahnstein, Germany.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-9DC4-4
In recent years, membrane reactors have attracted the interest of many researchers, as they may offer advantages with respect to yield, selectivity or temperature control [1,2]. In this study, the partial oxidation of ethane to ethene in a packed bed membrane reactor (PBMR) is considered. A detailed 2D model is developed from the complete balance equations. Experimentally validated kinetics of five consecutive and parallel reaction steps taken from [3] are used. The model is to improve the data reduction of the experiments and also should reduce the experimental costs. The reliability of the numerical solution is ensured by using different software simulation packages like FLUENT®, FEMLAB®, MooNMD [4], and also by mathematically based error estimation procedures. Simulations are performed for certain test cases and compared with experiments. The results are presented on the basis of comparative simulations with an additional discussion of the advantages and disadvantages of the application of the commercial software packages FLUENT® and FEMLAB® for the cases presented. Possible model simplifications are considered, such as variable material properties, isothermal/non-isothermal conditions, or assumption of incompressibility for the velocity fields. The 2D simulation results are also compared to the results of the 1D model implemented in ProMoT [5]. The necessity of a 2D model is discussed in comparison to the experimental results. References: [1] S. Assabumrungrat, T.Rienchalanusarn, P.Praserthadm, S. Goto. Chem. Eng. J. , 85 (2002), 69-79 [2] K. Hou, R. Hughes, R. Ramos, M. Menendez, J. Santamaria. Chem. Eng. Sci. 56 (2001), 57-67 [3] F. Klose, M. Joshi, C. Hamel, A. Seidel-Morgenstern. Appl. Catal. A, 260/1 (2004) 101-110 [4] V. John, G. Matthies: MooNMD – a program package based on mapped finite element methods, Computing and Visualization in Science, accepted for publication, 2003 [5] M. Mangold, M. Ginkel, E.D. Gilles. Comp. & Chem. Eng. 28 (2004), 319-322