Influence of iron precursors on catalytic wet oxidation of H2S to sulfur over Fe/MgO catalysts

The Fe/MgO catalysts prepared from iron nitrate, iron chloride and iron sulfate were studied for catalytic wet oxidation of H2S to sulfur. Catalysts prepared from iron nitrate showed the highest H2S removal ability among the prepared catalysts. H2S removal ability correlates with the dispersion of iron oxide in the Fe/MgO catalysts.