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

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Roos, J.A. and Korf, S.J. and Veehof, R.H.J. and Ommen van, J.G. and Ross, J.R.H. (1989) Kinetic and mechanistic aspects of the oxidative coupling of methane over a Li/MgO catalyst. Applied Catalysis, 52 (1). pp. 131-145. ISSN 0166-9834

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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.
Item Type:Article
Copyright:© 1989 Elsevier
Link to this item:http://purl.utwente.nl/publications/70461
Official URL:http://dx.doi.org/10.1016/S0166-9834(00)83377-1
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