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

doi:10.1016/S0166-9834(00)83377-1

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

University of Twente

Research output: Contribution to journal › Article › peer-review

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 language	English
Pages (from-to)	131-145
Number of pages	15
Journal	Applied Catalysis
Volume	52
Issue number	1
DOIs	https://doi.org/10.1016/S0166-9834(00)83377-1
Publication status	Published - 1989
Externally published	Yes

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title = "Kinetic and mechanistic aspects of the oxidative coupling of methane over a Li/MgO catalyst",

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.",

author = "Roos, {J. A.} and Korf, {S. J.} and Veehof, {R. H.J.} and {van Ommen}, {J. G.} and Ross, {J. R.H.}",

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AU - Roos, J. A.

AU - Korf, S. J.

AU - Veehof, R. H.J.

AU - van Ommen, J. G.

AU - Ross, J. R.H.

PY - 1989

Y1 - 1989

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AB - 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.

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VL - 52

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JO - Applied Catalysis

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IS - 1

ER -

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

Abstract

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