English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Book Chapter

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

MPS-Authors
/persons/resource/persons58677

Kestenbaum,  H.
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

/persons/resource/persons58733

Lange de Oliveira,  A.
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

/persons/resource/persons58966

Schmidt,  W.
Research Group Schmidt, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

/persons/resource/persons58985

Schüth,  F.
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

Locator
There are no locators available
Fulltext (public)
There are no public fulltexts available
Supplementary Material (public)
There is no public supplementary material available
Citation

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.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0024-05F4-E
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.