论文部分内容阅读
为了分析有氧条件下H2S对铁锈腐蚀产物的自燃性,模拟含硫油品储罐中铁锈(Fe2O3:75%;Fe(OH)3:7%;Fe3O4:18%)在有氧条件下与H2S气体的反应试验。将铁锈与H2S气体、O2按不同比例混合形成的混合物进行反应,再进行所得产物的氧化反应。采用X射线衍射分析法鉴定混合气体与铁锈的反应产物,并研究不同初始O2体积分数下的混合气体与铁锈的反应及其产物的再氧化反应,通过温度变化评价铁锈与H2S气体反应产物的自燃性。结果表明,在有氧条件下,H2S对铁锈腐蚀产物主要是FeS;随着初始O2体积分数的增加,铁锈与H2S的反应伴随其产物的氧化反应,HS对铁锈腐蚀产物的量减小,这种产物再氧化自燃性降低。
In order to analyze the spontaneous combustion of H2S on rust corrosion products under aerobic conditions, the simulated rust (Fe2O3: 75%; Fe (OH) 3: 7%; Fe3O4: 18% H2S gas reaction test. The rust and H2S gas, O2 mixture formed by mixing different proportions of the reaction, and then the resulting product of the oxidation reaction. The reaction products of mixed gas and rust were identified by X-ray diffraction analysis. The reaction of mixed gas and rust with different initial O2 volume fraction and the reoxidation of their products were also studied. The spontaneous combustion of rust and H2S gas was evaluated by temperature change Sex. The results showed that under aerobic conditions, the corrosion products of H2S were mainly FeS. With the increase of the initial volume fraction of O2, the reaction between rust and H2S was accompanied by the oxidation reaction of the products, and the amount of rust corrosion product decreased with HS Product reoxidation spontaneous combustion decreased.