Superclaus Superior Claus
Superclaus Superior Claus : A superior version of the Claus process. Hydrogen sulfide is catalytically oxidized to elemental sulfur using air and water. The first generation of -alumina. The second generation?catalysts used iron and chromium oxides on used iron oxide on silica. The latest version, Superclaus-99, uses a different catalyst which produces less sulfur dioxide in the oxidation stage