对失效的重油加氢装置脱硫系统再生塔顶空冷器出口 管束进行了外观检查，分别用X射线衍射技术和SEM分析了管束腐蚀产物的相组成、元素含量 与形貌.结果表明，腐蚀减薄穿孔原因是由高温下乙醇胺引起的碱腐蚀所致，硫化氢腐蚀也 起到了辅助作用.
The appearance of a failed carbon steel tube on heav y oil hydrogenation equipment was examined by naked eye,and the phase compositio n,element content and photography of the co rrosion product on the failed carbon steel were analyzed by x-ray spectrum and S EM,respectively.The results indicated that the pitting of the carbon steel was i nduced by C2H7NO mainly and H2S subordinately.
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