CO[sub 2]-reforming of methane over transition metals
- Haldor Topseoe A/S, Lyngby (Denmark)
Catalysts based on Ni, Ru, Rh, Pd, Ir and Pt are compared for CO[sub 2]-reforming of methane by studying the equilibrium for methane decomposition, the activity for reforming, and carbon formation, as well as the selectivity for carbon formation. Replacing steam by carbon dioxide has no significant impact on the reforming mechanism. All catalysts show smaller equilibrium constants for methane decomposition than that based on graphite, the effect being largest for the noble metals. Ru and Rh show high selectivity for carbon-free operation, which can be ascribed to high reforming rates combined with low carbon formation rates. Similar high selectivity can be achieved with a sulfur-passivated nickel catalyst. 35 refs., 7 figs., 4 tabs.
- OSTI ID:
- 5078577
- Journal Information:
- Journal of Catalysis; (United States), Vol. 144:1; ISSN 0021-9517
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
03 NATURAL GAS
IRIDIUM
CATALYTIC EFFECTS
METHANE
CATALYTIC REFORMING
NICKEL
PALLADIUM
PLATINUM
RHODIUM
RUTHENIUM
ABSORPTION SPECTROSCOPY
CARBON DIOXIDE
CATALYSTS
HETEROGENEOUS CATALYSIS
ALKANES
CARBON COMPOUNDS
CARBON OXIDES
CATALYSIS
CHALCOGENIDES
CHEMICAL REACTIONS
ELEMENTS
HYDROCARBONS
METALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
REFORMER PROCESSES
SPECTROSCOPY
TRANSITION ELEMENTS
400201* - Chemical & Physicochemical Properties
030400 - Natural Gas- Products & By-Products