Influence of various metal oxides in the bistability observed in the oxidative dehydrogenation of 2 - propanol over copper catalysts

Gil, A.;Ruiz, Patricio;Delmon, Bernard
(1996) 2nd International Conference on Unsteady-State Processes in Catalysis — Location: ST LOUIS(Mo) (11.September.1995)

Files

No attached file found for this publication.

Details

Authors
  • Gil, A.
    Author
  • Ruiz, PatricioUCLouvain
    Author
  • Delmon, BernardUCLouvain
    Author
Abstract
This article presents new results concerning a bistability phenomenon observed recently in the oxidative dehydrogenation of 2- propanol over copper catalysts. In this system, an activity hysteresis loop is observed when the partial oxygen pressure is varied. This bistability has been explained by the oxidation of metallic copper when the partial oxygen pres sure increases and copper oxide reduction when the partial oxygen pressure decreases. In the experiments reported here, an external second phase (alpha-Sb2O4, SnO2, Cr2O3, CeO2, Co3O4, MoO3, PbO2, NiO, Bi2O3 and MnO2) has been mixed with the copper catalysts. This modifies the hysteresis loop. The possible role played by the oxygen spillover at low temperature (150 degrees C) on this modification is discussed.
Affiliations

Citations

  • APA
  • Chicago
  • FWB

Gil, A., Ruiz, P., & Delmon, B. (1996). Influence of various metal oxides in the bistability observed in the oxidative dehydrogenation of 2 - propanol over copper catalysts. Canadian Journal of Chemical Engineering, 74(5), 600-605. https://doi.org/10.1002/cjce.5450740508 (Original work published 1996)