Trace desulfurization. [DOE patent application]
A method for reducing a trace concentration of sulfur-containing compounds in a gas stream from about one part in 10/sup 4/ to about one part in 10/sup 7/. The method includes the steps of irradiating the gas stream with an energy source which has a central emission frequency chosen to substantially match a wavelength of energy absorption of the sulfur-containing compounds and of subsequently contacting the gas stream with a reactive surface which includes a reactant selected from elemental metals and metal oxides so that metallic sulfur-containing compounds are formed. The reduction in concentration allows the gas stream to be processed in certain reactions having catalysts which would otherwise be poisoned by the sulfur-containing compounds.
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- TIC; ERA-05-021587; EDB-80-059109
- OSTI ID:
- 5562207
- Country of Publication:
- United States
- Language:
- English
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CATALYSTS
SERVICE LIFE
FISCHER-TROPSCH SYNTHESIS
FUEL GAS
DESULFURIZATION
NICKEL
CATALYTIC EFFECTS
DEACTIVATION
COAL GASIFICATION
LASERS
PHOTOLYSIS
CHEMICAL REACTIONS
DECOMPOSITION
ELEMENTS
FLUIDS
FUELS
GAS FUELS
GASES
GASIFICATION
METALS
PHOTOCHEMICAL REACTIONS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
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