METHOD AND CATALYST FOR CATALYTICALLY OXIDISING A LOW CONCENTRATION OF H2S IN A GAS TO GIVE SULPHUR

摘要

H2S in a process gas is oxidised to sulphur by contacting it with an oxidation catalyst consisting of at least one metal and particularly a transition metal compound, or of the corresponding elemental metal, in combination with a silicon carbide carrier, at temperatures which, depending on the embodiment, may be higher than or well below the dew point of the resulting sulphur. The method is useful for removing H2S from various gases and recovering the H2S essentially in the form of sulphur.