Plasma-induced conversion of surface-adsorbed hydrocarbons
Experimental results are reported for an electrical device for direct conversion of methane into higher hydrocarbons. A microchannel plate is excited with electrons from a photoemissive source, and electron impact ionization of methane on the inner surfaces of the microchannels creates an ion feedback process. The resulting low-density plasma creates higher hydrocarbons when charged particles impact the surfaces at grazing incidence. The production Of C{sub 2} to C{sub 8}-containing gases was noted, with a selectivity for C{sub 2} of 39% in one case. The proportions of converted products and the conversion rates depend upon the electrical voltage, the microchannel geometry, and the operating pressure. Conversion rates increase with operating pressure.
- Research Organization:
- Alaska Univ., Fairbanks, AK (United States). Geophysical Inst.
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG21-90MC27420
- OSTI ID:
- 5099922
- Report Number(s):
- DOE/MC/27420-92/C0038; CONF-920584-23; ON: DE92016719
- Resource Relation:
- Conference: US Department of Energy contractor review meeting on natural gas research and development, Morgantown, WV (United States), 5-6 May 1992
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
HYDROCARBONS
SYNTHESIS
METHANE
CONVERSION
ADSORPTION
CARBON 13
DEUTERIUM
DIMERIZATION
ELECTRIC POTENTIAL
ELECTRONS
EXPERIMENTAL DATA
GEOMETRY
HYDROGEN
IONIZATION
MASS SPECTROSCOPY
PLASMA
PRESSURE EFFECTS
REDUCTION
SPECIFICITY
TRACER TECHNIQUES
ALKANES
CARBON ISOTOPES
CHEMICAL REACTIONS
DATA
ELEMENTARY PARTICLES
ELEMENTS
EVEN-ODD NUCLEI
FERMIONS
HYDROGEN ISOTOPES
INFORMATION
ISOTOPE APPLICATIONS
ISOTOPES
LEPTONS
LIGHT NUCLEI
MATHEMATICS
NONMETALS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
POLYMERIZATION
SORPTION
SPECTROSCOPY
STABLE ISOTOPES
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