Multiple isotope tracing of methanation over nickel catalyst. III. Completion of /sup 13/C and D tracing

Journal Article · Tue Nov 01 04:00:00 EST 1983 · J. Catal.; (United States)

OSTI ID:5425485

Otarod, M; Ozawa, S; Yin, F; Chew, M; Cheh, H Y; Happel, J

The methanation of mixtures of carbon monoxide and hydrogen was studied by a transient superposition technique using terminal species marked by /sup 13/C and D. Further evidence is presented that the most abundant reacting intermediate is the species CH/sub ads/. It appears that the hydrogenation of this species controls the rate of methanation. Carbidic carbon consists of relatively small pool of active C/sub ads/ together with a larger pool of carbon which, although not active for methanation, is also not graphitic. A mechanism is presented which summarizes the findings of this and the previous two papers in this series. 14 references, 6 figures, 2 tables.

• Research Organization: Columbia Univ.j, New York, NY
• OSTI ID: 5425485
• Journal Information: J. Catal.; (United States), Journal Name: J. Catal.; (United States) Vol. 84:1; ISSN JCTLA
• Country of Publication: United States
• Language: English

Related Subjects

090121* -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ABSORPTION
ALKANES
CARBON 13
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON ISOTOPES
CARBON MONOXIDE
CARBON OXIDES
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
COMPUTER CALCULATIONS
CORRELATIONS
DATA
DEUTERIUM
ELEMENTS
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HIGH TEMPERATURE
HYDROCARBONS
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INFORMATION
ISOTOPE APPLICATIONS
ISOTOPES
KINETICS
LABELLING
LEAST SQUARE FIT
LIGHT NUCLEI
MASS SPECTROSCOPY
MAXIMUM-LIKELIHOOD FIT
MEDIUM PRESSURE
METALS
METHANATION
METHANE
MINERALS
NICKEL
NONMETALS
NUCLEI
NUMERICAL DATA
NUMERICAL SOLUTION
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PARAMETRIC ANALYSIS
PRESSURE DEPENDENCE
REACTION KINETICS
REDUCTION
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SORPTIVE PROPERTIES
SPECTROSCOPY
STABLE ISOTOPES
SURFACE PROPERTIES
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
TRACER TECHNIQUES
TRANSITION ELEMENTS
WATER
YIELDS