Desulfurization of hot gas with cerium oxide
Patent
·
OSTI ID:6533773
A gas containing oxygen, H/sub 2/S and sulfur oxides is desulfurized by contacting same with cerium oxide at a temperature of from about 350-600/sup 0/C. This invention is particularly useful for desulfurizing tail gas from a claus plant. In a preferred embodiment the cerium oxide is supported on alumina and oxygen is present in the gas in an amount more than that stoichiometrically required to convert the H/sub 2/S and SO/sub 2/ to cerium oxysulfate.
- Assignee:
- Exxon Research And Engineering Co
- Patent Number(s):
- US 4346063
- OSTI ID:
- 6533773
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
424000* -- Engineering-- Pollution Control Equipment-- (1980-1989)
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYSIS
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CLAUS PROCESS
DESULFURIZATION
ELEMENTS
GASEOUS WASTES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
SULFUR OXIDES
WASTES
424000* -- Engineering-- Pollution Control Equipment-- (1980-1989)
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYSIS
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CLAUS PROCESS
DESULFURIZATION
ELEMENTS
GASEOUS WASTES
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
RARE EARTH COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
SULFUR OXIDES
WASTES