Abstract: The sulfidation and oxidation reaction of Fe₂O₃ and H₂S in oil tank containing sulfur were simulated under aerobic condition. In order to evaluate the pyrophoric tendency of H₂S corrosion product, the temperature changes were measured during the oxidation process. The effect of water on pyrophoric tendency of H₂S corrosion product was investigated. The results showed that water had important influence on the pyrophoric tendency of H₂S corrosion product. The pyrophoric reactivity was high in the corrosion product when  Fe₂O₃ sample contained some water. But the pyrophoric reactivity of H₂S corrosion product was lower when there was no water or too much water in  Fe₂O₃ sample. With the same water containing, the higher the O₂ concentration in the mixture of sulfidation gas was, the greater the pyrophoric reactivity of H₂S corrosion product was.

Key words: Sulfidation,    , Oxidation,    ,  Corrosion product,    ,  Pyrophoric tendency

摘要： 以F e₂O₃ 为例, 模拟含硫油品储罐中硫化氢气体在有氧条件下的硫化及氧化反应, 测定氧化过程中试样温度变化评价硫化产物的自燃性, 考察F e₂O₃ 试样含水率对硫腐蚀产物自然性的影响。结果表明, 水是影响 F e₂O₃  试样硫化产物自燃性的重要因素; 试样含有少量水时自燃性最高, 干燥试样或含水率过高硫腐蚀产物的自燃性较小; 在相同含水率下, 混合气体中氧气体积分数越高, 硫腐蚀产物的自燃性越低。

关键词: 硫化,    ,  , 氧化,    ,  , 腐蚀产物,    ,  自燃性