Partial oxidation of light alkanes in transition-metal ion containing zeolites
The objective of this research project was to provide the scientific foundation for the conversion of C{sub 1}-C{sub 3} alkanes to oxygenates, particularly alcohols, and to higher hydrocarbons. The objectives of these studies are (1) to prepare selected transition metal ion zeolites by ion exchange with metal ions that are capable of undergoing redox reactions, (2) to characterize the transition metal ion containing zeolites experimentally and theoretically, (3) to characterize the adsorbed species formed between reactive gas phase molecules such as O{sub 2} and NO and the transition metal ions held in the zeolite matrix, and (4) to investigate the reactivity of those species for methane activation and conversion. Direct conversion of methane by low temperature partial oxidation to C{sub 2} hydrocarbons, oxygenated products such as methanol, or even to CO/H{sub 2} would be of significant interest for improvements in the economics of natural gas conversion. It would also open the bottleneck in the overall conversion scheme beginning with coal gasification and ending with the Mobil methanol-to-gasoline (MTG) process that produces a high octane liquid fuel. Sections of this report describe: the introductory background on transition metal zeolites; preparation and optical studies of Co(II)A zeolite; ligand field theory and dynamic Jahn-Teller effect for Co(II)A zeolite; scattered-wave X-{alpha} calculations of spectra of copper centers in oxide and zeolites; and studies of Fe(II)A zeolite. 81 refs., 39 figs., 21 tabs.
- Research Organization:
- Lehigh Univ., Bethlehem, PA (USA)
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (USA)
- DOE Contract Number:
- FG22-86PC90526
- OSTI ID:
- 5912257
- Report Number(s):
- DOE/PC/90526-T2; ON: DE91008202
- Country of Publication:
- United States
- Language:
- English
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03 NATURAL GAS
01 COAL, LIGNITE, AND PEAT
ALCOHOLS
SYNTHESIS
CARBON MONOXIDE
METHANATION
METHANE
CHEMICAL ACTIVATION
OXIDATION
ZEOLITES
SURFACE PROPERTIES
ADSORPTION
CATALYTIC EFFECTS
COAL GASIFICATION
COBALT
COPPER
CRYSTAL STRUCTURE
DATA
DEHYDRATION
ELECTRONIC STRUCTURE
HYDROGENATION
ION EXCHANGE
IRON
JAHN-TELLER EFFECT
METHANOL
MOBIL M-GASOLINE PROCESS
NATURAL GAS
NITRIC OXIDE
OXYGEN
PHOTOELECTRON SPECTROSCOPY
PROGRESS REPORT
REDOX REACTIONS
SAMPLE PREPARATION
SPECTRA
SPECTROPHOTOMETRY
TEMPERATURE DEPENDENCE
TRANSITION ELEMENTS
X-RAY SPECTROSCOPY
ZINC
ALKANES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
DOCUMENT TYPES
ELECTRON SPECTROSCOPY
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
GASIFICATION
HYDROCARBONS
HYDROXY COMPOUNDS
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
METALS
MINERALS
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SORPTION
SPECTROSCOPY
THERMOCHEMICAL PROCESSES
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