Isotopic labelling studies of the mechanism of the catalytic oxidative coupling of methane

Peter F. Nelson; Eric M. Kennedy; Noel W. Cant

doi:10.1016/S0167-2991(08)60067-1

Isotopic labelling studies of the mechanism of the catalytic oxidative coupling of methane

Peter F. Nelson, Eric M. Kennedy, Noel W. Cant

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6 Citations (Scopus)

Abstract

The conversion and selectivities of methane-, ethane- and ethylene-oxygen mixtures have been determined for a Li/MgO catalyst at temperatures of 600–750°C. Kinetic isotope effects and H/D distributions have also been determined from studies using D labelling of ethane as C₂D₆ and CH₃CD₃. The importance of CH3O2 as a source of low temperature CO_x from CH₄ is demonstrated; by contrast the low thermal stability of C₂H₅O₂, and the preferred reaction channel (to C₂H₄+HO₂) make conversion of C₂H₆ to C₂H₄ highly selective.

Original language	English
Pages (from-to)	89-95
Number of pages	7
Journal	Studies in Surface Science and Catalysis
Volume	61
DOIs	https://doi.org/10.1016/S0167-2991(08)60067-1
Publication status	Published - 1 Jan 1991

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10.1016/S0167-2991(08)60067-1

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title = "Isotopic labelling studies of the mechanism of the catalytic oxidative coupling of methane",

abstract = "The conversion and selectivities of methane-, ethane- and ethylene-oxygen mixtures have been determined for a Li/MgO catalyst at temperatures of 600–750°C. Kinetic isotope effects and H/D distributions have also been determined from studies using D labelling of ethane as C2D6 and CH3CD3. The importance of CH3O2 as a source of low temperature COx from CH4 is demonstrated; by contrast the low thermal stability of C2H5O2, and the preferred reaction channel (to C2H4+HO2) make conversion of C2H6 to C2H4 highly selective.",

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AU - Nelson, Peter F.

AU - Kennedy, Eric M.

AU - Cant, Noel W.

PY - 1991/1/1

Y1 - 1991/1/1

N2 - The conversion and selectivities of methane-, ethane- and ethylene-oxygen mixtures have been determined for a Li/MgO catalyst at temperatures of 600–750°C. Kinetic isotope effects and H/D distributions have also been determined from studies using D labelling of ethane as C2D6 and CH3CD3. The importance of CH3O2 as a source of low temperature COx from CH4 is demonstrated; by contrast the low thermal stability of C2H5O2, and the preferred reaction channel (to C2H4+HO2) make conversion of C2H6 to C2H4 highly selective.

AB - The conversion and selectivities of methane-, ethane- and ethylene-oxygen mixtures have been determined for a Li/MgO catalyst at temperatures of 600–750°C. Kinetic isotope effects and H/D distributions have also been determined from studies using D labelling of ethane as C2D6 and CH3CD3. The importance of CH3O2 as a source of low temperature COx from CH4 is demonstrated; by contrast the low thermal stability of C2H5O2, and the preferred reaction channel (to C2H4+HO2) make conversion of C2H6 to C2H4 highly selective.

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U2 - 10.1016/S0167-2991(08)60067-1

DO - 10.1016/S0167-2991(08)60067-1

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SP - 89

EP - 95

JO - Studies in Surface Science and Catalysis

JF - Studies in Surface Science and Catalysis

SN - 0167-2991

ER -

Isotopic labelling studies of the mechanism of the catalytic oxidative coupling of methane

Abstract

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