Catalytic oxidation of alkanes over palladium oxide

Y. X. Xin, H. Wang, C. K. Law

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Catalytic oxidation of methane, ethane and propane over a palladium oxide (PdO) surface was investigated experimentally by wire microcalorimetry. The oxidation rate was determined for each reactant at the atmospheric pressure in the temperature range of 600 to 800K. The kinetic parameters were extracted from the experimental observation. It is shown that the oxidation of these hydrocarbons over the PdO surface proceeds with a similar mechanism: they undergo dissociative oxidation followed by conversion of the surface fragments to combustion products. The catalytic oxidation rates were found to increase in the order of methane ethane propane. The observation can be explained by the C-H bond energies of the corresponding surface intermediates. A detailed surface reaction model was proposed on the basis of literature rate data and the present experimental observation.

Original languageEnglish (US)
Title of host publication8th US National Combustion Meeting 2013
PublisherWestern States Section/Combustion Institute
Pages2798-2814
Number of pages17
ISBN (Electronic)9781627488426
StatePublished - Jan 1 2013
Event8th US National Combustion Meeting 2013 - Park City, United States
Duration: May 19 2013May 22 2013

Publication series

Name8th US National Combustion Meeting 2013
Volume3

Other

Other8th US National Combustion Meeting 2013
CountryUnited States
CityPark City
Period5/19/135/22/13

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Mechanical Engineering
  • Physical and Theoretical Chemistry

Keywords

  • Alkane oxidation
  • Catalytic combustion
  • Mechanism
  • Pd-based catalyst

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  • Cite this

    Xin, Y. X., Wang, H., & Law, C. K. (2013). Catalytic oxidation of alkanes over palladium oxide. In 8th US National Combustion Meeting 2013 (pp. 2798-2814). (8th US National Combustion Meeting 2013; Vol. 3). Western States Section/Combustion Institute.