Surface interaction between methane and alkali/alkaline-earth oxide catalysts

Journal Article · Wed May 01 04:00:00 EDT 1991 · Journal of Catalysis; (USA)

DOI:https://doi.org/10.1016/0021-9517(91)90014-U· OSTI ID:5537800

Grzybek, T; Baerns, M ^[1]

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1. Ruhr-Univ., Bochum (Germany)

The interaction of methane with alkali/alkaline-earth oxide catalysts (NaOH-CaO, NaOH-BaO-CaO) was investigated at 350, 500 and 750{degree}C using X-ray photoelectron spectroscopy. Methane interacted with surface carbonate at temperatures of 500 and 750{degree}C while no reaction was observed at 350{degree}C. Intermediate states registered on the surface consisted of methoxy species and carbonyl groups. Mechanistic aspects of the high-temperature oxidative methane conversion reaction tentatively derived from these results are discussed.

• OSTI ID: 5537800
• Journal Information: Journal of Catalysis; (USA), Journal Name: Journal of Catalysis; (USA) Vol. 129:1; ISSN 0021-9517; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030300* -- Natural Gas-- Drilling
Production
& Processing
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALKANES
ALKOXY RADICALS
BARIUM COMPOUNDS
BARIUM OXIDES
CALCIUM COMPOUNDS
CALCIUM OXIDES
CARBON COMPOUNDS
CARBONATES
CARBONYLS
CATALYSTS
CATALYTIC EFFECTS
CATALYTIC REFORMING
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
ELECTRON SPECTROSCOPY
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROXIDES
KINETICS
METHANE
METHOXY RADICALS
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PHOTOELECTRON SPECTROSCOPY
RADICALS
REACTION KINETICS
REFORMER PROCESSES
SODIUM COMPOUNDS
SODIUM HYDROXIDES
SPECTROSCOPY
SURFACE PROPERTIES
TEMPERATURE DEPENDENCE
X-RAY SPECTROSCOPY