Trace desulfurization. [DOE patent application]

Patent ·

OSTI ID:5562207

Chen, H L; Stevens, C G

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
• Patent Number(s): None
• OSTI ID: 5562207
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010402 -- Coal
Lignite
& Peat-- Purification & Upgrading
010404* -- Coal
Lignite
& Peat-- Gasification
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL REACTIONS
COAL GASIFICATION
DEACTIVATION
DECOMPOSITION
DESULFURIZATION
ELEMENTS
FISCHER-TROPSCH SYNTHESIS
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
GASIFICATION
LASERS
METALS
NICKEL
PHOTOCHEMICAL REACTIONS
PHOTOLYSIS
SERVICE LIFE
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS