Study on Catalytic Wet Oxidation of H2S into Sulfur on Fe/Cu Catalyst

Abstract A wet catalytic oxidation at room temperature was investigated with solution containing ferric, ferrous and cupric ions for H 2 S removal. The experiments were carried out in a two step process, and the results obtained show that the removal efficiency of H 2 S can always reach 100% in a 300 mm scrubbing column with four sieve plates, and the regeneration of ferric ions in 200 mm bubble column can match the consumed ferric species in absorption. Removal of H 2 S, production of elemental sulfur and regeneration of ferric, cupric ions can all be accomplished at the same time. No raw material is consumed except O 2 in flue gas or air, the process has no secondary pollution and no problem of catalyst degradation and congestion.