重油加氢装置脱硫系统再生塔顶空冷器出口管束腐蚀穿孔原因分析  

FAILURE ANALYSIS FOR PITTING OF CARBON STEEL TUBE ON HEAVY OIL HYDROGENATION EQUIPMENT

作　　者：熊金平[1] 左禹[1] 胡定铸[2] 

机构地区：[1]北京化工大学材料科学与工程学院,北京100029 [2]空军雷达学院,武汉430012

出　　处：《腐蚀科学与防护技术》2002年第3期178-179,共2页Corrosion Science and Protection Technology

摘　　要：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 heavy oil hydrogenation equipment was examined by naked eye,and the phase composition,element content and microstructure of the corrosion product on the failed carbon steel were analyzed by x-ray spectrum and SEM,respectively.The results indicated that the pitting of the carbon steel was induced by C 2H 7NO mainly and H 2S subordinately.

关 键 词：腐蚀穿孔 碳钢管 重油加氢装置 空冷器 失效分析 

分 类 号：TE986[石油与天然气工程—石油机械设备]