Low-temperature oxidation reactions of ethane over a Pt/Al2O3 catalyst

B Silberova, R Burch, A Goguet, C Hardacre*, A Holmen

*Corresponding author for this work

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Oxidative dehydrogenation of ethane was performed under conventional microreactor and TAP reactor conditions over a Pt/Al2O3 catalyst between 100 and 600 degreesC. During TAP studies, no ethene was produced whereas under flow conditions small but significant ethene formation was observed. This is consistent with a mechanism involving the gas-phase production of ethene rather than via a surface reaction. In comparison, both hydrogen and methane formation were found under TAP conditions and the trends with temperature and surface oxide composition are interpreted in terms of successive dehydrogenation steps on the catalyst surface. It is further observed that periodic introduction of the reactants can minimize deactivation processes. (C) 2003 Elsevier Inc. All rights reserved.

Original languageEnglish
Pages (from-to)206-213
Number of pages8
JournalJournal of Catalysis
Volume219
Issue number1
DOIs
Publication statusPublished - 01 Oct 2003

Keywords

  • METHANE
  • Pt/Al2O3
  • SHORT-CONTACT TIMES
  • LIGHT PARAFFINS
  • PLATINUM
  • oxidative dehydrogenation
  • METAL GAUZE
  • DEHYDROGENATION
  • TAP
  • SURFACE-AREA
  • ethane
  • REACTION-MECHANISM
  • SYNTHESIS GAS
  • GAUZE CATALYSTS

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