Catalysis Letters

, 133:376

Oxidation of Coke Formed Over Pt-Al2O3 and Pt-SBA-15 in Propane Dehydrogenation

Authors

  • Bao Khanh Vu
    • School of Chemical Engineering and BioengineeringUniversity of Ulsan
  • Song Myoung Bok
    • School of Chemical Engineering and BioengineeringUniversity of Ulsan
  • In Young Ahn
    • Korea Institute of Science and Technology
    • School of Chemical Engineering and BioengineeringUniversity of Ulsan
Article

DOI: 10.1007/s10562-009-0196-4

Cite this article as:
Vu, B.K., Bok, S.M., Ahn, I.Y. et al. Catal Lett (2009) 133: 376. doi:10.1007/s10562-009-0196-4

Abstract

In this study, different oxidation patterns of coke over 3% Pt-Al2O3 and 3% Pt-SBA-15 catalysts were observed but the same catalytic performance was obtained in the dehydrogenation of propane. The oxidation peaks of coke on 3% Pt-Al2O3 appeared at 416 and 513 °C, while only one sharp peak was present at 556 °C in the coke oxidation pattern of 3% Pt-SBA-15. Using the XRD patterns, it was confirmed that the structure of the coke formed over the catalysts was the same. The TPO profiles indicated that the relative distance of coke from the metallic phase (coke location) and the oxygen mobility on each support played important roles in the oxidation of coke.

Keywords

Propane dehydrogenationCoke structureCoke locationOxygen mobilityCatalyst deactivation

Copyright information

© Springer Science+Business Media, LLC 2009