Kinetic and mechanistic aspects of the oxidative coupling of methane over a Li/MgO catalyst

J.A. Roos, S.J. Korf, R.H.J. Veehof, J.G. van Ommen, J.R.H. Ross

Research output: Contribution to journalArticleAcademic

89 Citations (Scopus)
230 Downloads (Pure)

Abstract

The rate of reaction of methane with oxygen in the presence of a Li-doped MgO catalyst has been studied as a function of the partial pressures of CH4, O2 and CO2 in a well-mixed reaction system which is practically gradientless with respect to gas-phase concentrations. It is concluded that the rate determining step involves reaction of methane adsorbed on the catalyst surface with a di-atomic oxygen species. The adsorption of oxygen is relatively weak. Carbon dioxide acts as a poison for the reaction of methane with oxygen, this probably being caused by competitive adsorption on the sites where oxygen (and possibly also methane) adsorbs.
Original languageUndefined
Pages (from-to)131-145
JournalApplied catalysis
Volume52
Issue number1
DOIs
Publication statusPublished - 1989

Keywords

  • IR-70461

Cite this

Roos, J. A., Korf, S. J., Veehof, R. H. J., van Ommen, J. G., & Ross, J. R. H. (1989). Kinetic and mechanistic aspects of the oxidative coupling of methane over a Li/MgO catalyst. Applied catalysis, 52(1), 131-145. https://doi.org/10.1016/S0166-9834(00)83377-1