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  Synthesis of ethylene oxide in a microreaction system. Applied Mineralogy in Research, Economy, Technology, Ecology and Culture

Kestenbaum, H., Lange de Oliveira, A., Schmidt, W., Schüth, F., Ehrfeld, W., Gebauer, K., et al. (2000). Synthesis of ethylene oxide in a microreaction system. Applied Mineralogy in Research, Economy, Technology, Ecology and Culture. In D. Rammlmair, J. Mederer, T. Oberthür, R. Heimann, & H. Pentinghaus (Eds.), Microreaction Technology: Industrial Prospects (pp. 207-212). Springer-Verlag Berlin Heidelberg.

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 Creators:
Kestenbaum, H.1, Author           
Lange de Oliveira, A.1, Author           
Schmidt, W.2, Author           
Schüth, F.1, Author           
Ehrfeld, W.3, Author
Gebauer, K.3, Author
Löwe, H.3, Author
Richter, Th3, Author
Affiliations:
1Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445589              
2Research Group Schmidt, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445618              
3Institut für Mikrotechnik Mainz GmbH, Carl-Zeiss-Str. 18-20, D-55129, Mainz, Germany , ou_persistent22              

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 Abstract: Since 1937 ethylene oxide has been produced by direct oxidation of ethylene over a supported silver catalyst and it has become a very important industrial product. Consequently, the synthesis of ethylene oxide has been the subject of a large number of scientific and industrial studies. These examinations of the ethylene oxidation have suggested that this process can be used for the comparison of potential microreactor systems to current industrial processes. Therefore, this reaction was chosen as a benchmark to evaluate the potential of a microstructured reactor in the synthesis of ethylene oxide. Here, a microreactor, designed and constructed by IMM, was used for the investigations. Silver foils (126 channels: length 9 mm, height 50 μm, width 500 μm) served as the catalytically active component. Most of the experiments worked at pressures between 5 and 15 bar in a temperature range of 500–570 K. In order to optimize the selectivity while still having a satisfying yield, the reactant gas composition was varied over a wide range. In this study it was found that the selectivities and conversions reached were comparable to those achieved in industrial processes and the selectivity was not strongly dependent on the oxygen concentration. Additionally, the possibility to run the reactor with gas compositions within the explosion limits for ethylene was demonstrated.

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Language(s): eng - English
 Dates: 2000
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1007/978-3-642-59738-1_20
ISBN: 9058091635
 Degree: -

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Title: Microreaction Technology: Industrial Prospects
Source Genre: Book
 Creator(s):
Rammlmair, D.1, Editor
Mederer, J., Editor
Oberthür, Th., Editor
Heimann, R.B., Editor
Pentinghaus, H., Editor
Affiliations:
1 Balkema , Rotterdam, ou_persistent22            
Publ. Info: Springer-Verlag Berlin Heidelberg
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 207 - 212 Identifier: ISBN: 978-3-642-64104-6