Catalytic process for removing sulfur dioxide from gas streams
This application describes a process for the catalytic reduction of sulfur dioxide in gas streams containing sulfur dioxide to elemental sulfur using a reducing gas such as hydrogen or, preferably, carbon monoxide, in a reactor charged with a material represented by the formula Ln/sub 2/O/sub 3/ . Co/sub 2/O/sub 3/, where Ln is either Y or Gd. In a further aspect of this invention, a gas stream containing hydrogen sulfide or carbonyl sulfide and sulfur dioxide is passed through a reaction chamber charged with Ln/sub 2/O/sub 3/ . Co/sub 2/O/sub 3/, where Ln is either Y or Gd, to catalytically produce at a sufficiently elevated temperature elemental sulfur with concomitant reduction of the concentrations of the undesired hydrogen sulfide or carbonyl sulfide and sulfur dioxide.
- Assignee:
- GTE Labs. Inc.
- Patent Number(s):
- US 4022870
- OSTI ID:
- 7258331
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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Lignite
& Peat-- Waste Management
02 PETROLEUM
020800 -- Petroleum-- Waste Management
03 NATURAL GAS
030800 -- Natural Gas-- Environmental Aspects
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
COBALT COMPOUNDS
COBALT OXIDES
DESULFURIZATION
ELEMENTS
FLUE GAS
GADOLINIUM COMPOUNDS
GADOLINIUM OXIDES
GASEOUS WASTES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
REDUCTION
REMOVAL
SULFUR
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TRANSITION ELEMENT COMPOUNDS
WASTES
YTTRIUM COMPOUNDS
YTTRIUM OXIDES