Process for reducing the hydrogen sulphide and/or free sulphur content of effluent gases

The hydrogen sulphide and/or sulphur content of the gaseous effluent from plants for producing sulphur from hydrogen sulphide is reduced by oxidation to sulphur dioxide with gaseous oxygen at a temperature of 150-400 DEG C. and in the presence of a catalyst consisting of precipitated alumina. More p...

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Bibliographic Details
Main Authors ENGEL WILLEM FREDERIK, HOOG HAN
Format Patent
LanguageEnglish
Published 06.07.1955
Subjects
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Summary:The hydrogen sulphide and/or sulphur content of the gaseous effluent from plants for producing sulphur from hydrogen sulphide is reduced by oxidation to sulphur dioxide with gaseous oxygen at a temperature of 150-400 DEG C. and in the presence of a catalyst consisting of precipitated alumina. More particular temperatures are 150-300 DEG C. and 225-275 DEG C. The alumina may be commercial activated alumina having a surface area of 280 square metres per gram. The gaseous effluent may be first treated, at the temperature of 150-400 DEG C., with bauxite containing iron. Specification 733,059 is referred to.
Bibliography:Application Number: GB19540031481