Nature Oxidation Tendency for High Temperature Erosion Products of H_2S With Iron Oxides

The erosion of hydrogen sulfide and the nature oxidation tendency of erosion products were studied at elevated temperature.The sulfidation products were analyzed by XRD.The oxidation reaction of sulfidation products was carried out to investigate the effects of different iron oxides, sulfidation temperature and environment temperature on the nature oxidation tendency of sulfidation products.The results show that the main product is FeS during high temperature sulfidation of H2S.And some other types of iron sulfides are found in the erosion products.The results demonstrate that the nature oxidation tendency of products formed by Fe2O3,Fe3O4,and Fe(OH)3 with H2S is weaker respectively.The nature oxidation tendency of sulfidation products is stronger when the sulfidation temperature is higher than 300 ℃ and the environment temperature is higher than 75 ℃.