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  Compatibility of Transport and Reaction in Membrane Reactors Used for the Oxidative Dehydrogenation of Short-Chain Hydrocarbons

Hamel, C., Wolff, T., & Seidel-Morgenstern, A. (2011). Compatibility of Transport and Reaction in Membrane Reactors Used for the Oxidative Dehydrogenation of Short-Chain Hydrocarbons. International Journal of Chemical Reactor Engineering, 9, A12. doi:10.1515/1542-6580.2495.

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1755480_hamel.pdf (Publisher version), 895KB
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Copyright 2011 De Gruyter. This publication is with the permission of the rights owner due to a contract between the MPS and the publisher freely available on MPG.PuRe.
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Hamel, C.1, 2, Author           
Wolff, T.1, Author           
Seidel-Morgenstern, A.1, 2, Author           
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1Physical and Chemical Foundations of Process Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society, ou_1738150              
2Otto-von-Guericke-Universität Magdeburg, External Organizations, ou_1738156              

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 Abstract: The possibility of process intensification by enhancing selectivity and yield in networks of parallel and series reactions was investigated applying asymmetric multilayer ceramic and sintered metal membranes in a dead-end configuration for a controlled distributed reactant feeding. The oxidative dehydrogenation of ethane to ethylene was selected as a model reaction applying three different doped and/or active VOx/γ-Al2O3 catalysts. Experimental investigations were performed in a pilot scale in order to evaluate the potential of a distributed dosing via membranes with respect to operation conditions and compatibility of reaction and membrane properties. It was demonstrated that the rates of reaction and trans-membrane mass transfer have to be compatible for an optimal membrane reactor operation avoiding back diffusion of reactants out of the catalytic zone as well as achieving safety aspects. Therefore, a detailed modeling of the trans-membrane mass transfer under reaction conditions was carried out. As a main result, it was found metal membranes possess a favorable mechanical stability, relatively low costs for production and the possibility to control mass transfer if the rate of reaction and mass transfer in the membrane is compatible which can adjusted by the trans-membrane pressure and the catalyst activity, respectively. Copyright © Walter de Gruyter All rights reserved.

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Language(s): eng - English
 Dates: 2011
 Publication Status: Issued
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 Rev. Type: Peer
 Identifiers: eDoc: 498595
DOI: 10.1515/1542-6580.2495
Other: 53/11
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Title: International Journal of Chemical Reactor Engineering
  Other : IJCRE
Source Genre: Journal
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Pages: - Volume / Issue: 9 Sequence Number: - Start / End Page: A12 Identifier: ISSN: 1542-6580