Isotopic evidence for direct methyl coupling and ethane to ethylene conversion during partial oxidation of methane over Li/MgO
Journal Article
·
· J. Phys. Chem.; (United States)
The products of the reaction of a CH/sub 4//CD/sub 4/O/sub 2/ mixture over a Li-promoted MgO (Li/MgO) catalyst at 750/degrees/C have been determined by mass spectrometry and high-resolution Fourier transform infrared spectroscopy. Under these conditions there was no significant hydrogen exchange between CH/sub 4/ and CD/sub 4/. C/sub 2/H/sub 6/, CD/sub 3/CH/sub 3/, and C/sub 2/D/sub 6/ were the only ethanes detected, and C/sub 2/H/sub 4/, CD/sub 2/CH/sub 2/, and C/sub 2/D/sub 4/ were the only ethylenes. The relative concentrations of the hydrocarbon products could be predicted on the basis of the relative concentrations of CH/sub 3/ and CD/sub 3/ determined by the kinetic isotope effect. The results suggest that the reaction proceeds almost exclusively by gas-phase methyl coupling and that ethylene is produced by gas-phase conversion of ethane.
- Research Organization:
- CSIRO, New South Wales (Australia)
- OSTI ID:
- 6085136
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 92:22; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Partial oxidation of ethane and ethylene in the presence and absence of [sup 13]C labeled methane on reducible and non-reducible oxide catalysts
Partial oxidation of ethane and ethylene in the presence and absence of {sup 13}C labeled methane on reducible and non-reducible oxide catalysts
Measurements of kinetic isotope effects and hydrogen/deuterium distributions over methane oxidative coupling catalysts
Conference
·
Thu Dec 31 23:00:00 EST 1992
·
OSTI ID:6688083
Partial oxidation of ethane and ethylene in the presence and absence of {sup 13}C labeled methane on reducible and non-reducible oxide catalysts
Conference
·
Sun Feb 28 23:00:00 EST 1993
·
OSTI ID:10134959
Measurements of kinetic isotope effects and hydrogen/deuterium distributions over methane oxidative coupling catalysts
Journal Article
·
Tue Oct 31 23:00:00 EST 1989
· Journal of Catalysis; (USA)
·
OSTI ID:6777113
Related Subjects
090100 -- Hydrocarbon Fuels-- (-1989)
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ABSORPTION SPECTROSCOPY
ALKALI METALS
ALKALINE EARTH METAL COMPOUNDS
ALKANES
ALKENES
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
DEUTERIUM COMPOUNDS
ELECTROMAGNETIC RADIATION
ELEMENTS
ETHANE
ETHYLENE
EXPERIMENTAL DATA
FOURIER TRANSFORM SPECTROMETERS
HIGH TEMPERATURE
HYDROCARBONS
HYDROGEN COMPOUNDS
INFORMATION
INFRARED RADIATION
LITHIUM
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MASS SPECTROSCOPY
MEASURING INSTRUMENTS
METALS
METHANE
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
SPECTROMETERS
SPECTROSCOPY
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ABSORPTION SPECTROSCOPY
ALKALI METALS
ALKALINE EARTH METAL COMPOUNDS
ALKANES
ALKENES
CHALCOGENIDES
CHEMICAL REACTIONS
DATA
DEUTERIUM COMPOUNDS
ELECTROMAGNETIC RADIATION
ELEMENTS
ETHANE
ETHYLENE
EXPERIMENTAL DATA
FOURIER TRANSFORM SPECTROMETERS
HIGH TEMPERATURE
HYDROCARBONS
HYDROGEN COMPOUNDS
INFORMATION
INFRARED RADIATION
LITHIUM
MAGNESIUM COMPOUNDS
MAGNESIUM OXIDES
MASS SPECTROSCOPY
MEASURING INSTRUMENTS
METALS
METHANE
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
SPECTROMETERS
SPECTROSCOPY