中文摘要：

含硫油品储罐低温湿H2S腐蚀产物FeS的氧化自燃是引起储罐火灾爆炸事故的主要原因。运用SDT-Q600型同步热分析仪对FeS从室温到1000℃的氧化过程进行了实验研究,用不同的动力学模型对热重实验数据进行了相关性分析处理,计算了不同粒径FeS的活化能。结果表明,FeS的氧化自燃过程符合一级反应动力学机制,活化能可以作为衡量FeS氧化自燃性能的一个指标。FeS样品粒径大小对其氧化自燃性有明显影响,随着FeS粒径的减小,TG曲线上氧化起始温度和氧化终止温度降低,其活化能减小。

英文摘要：

Fire and explosion in oil tank containing sulfur is mainly caused by the oxidizing and spontaneous combustion of ferrous sulfide which is the corrosion products by hydrogen sulfide with water at low temperature.The oxidizing course of ferrous sulfide from normal temperature to one thousand centigrade is studied through experiment by thermal analysis instrument of SDT-Q 600.The liner correlation of thermo-gravimetry experimental data is analyzed with different dynamics model,and the activation energy of ferrous sulfide with different partieal size is calculated. The results show that the oxidizing and spontaneous combustion eourse of ferrous sulfide can be described as the first - order reaction and the activation energy can be used to measure the oxidizing and spontaneous combustion tendency of ferrous sulfide. The oxidizing and spontaneous combustion tendency of ferrous sulfide is markedly affected by the partical size, the smaller of the partical size of ferrous sulfide, the lower of the initial oxidizing temperature and final temperature on TG curve, as well as the smaller of the activation energy.