催化重整加热炉对流段炉管腐蚀失效分析及对策  

Corrosion failure analysis and preventions for convection section tube of catalytic reforming furnace

作　　者：丁明生[1] DING Mingsheng(SINOPEC Yangzi Petrochemical Co.,Ltd.,Nanjing 210048,China)

机构地区：[1]中国石化扬子石油化工股份有限公司,江苏南京210048

出　　处：《石油化工腐蚀与防护》2023年第4期55-58,共4页Corrosion & Protection In Petrochemical Industry

摘　　要：某石化公司催化重整联合装置加热炉炉管发生泄漏,通过宏观形貌分析、材质成分分析、金相组织分析、扫描电镜观察、能谱分析和XRD分析等方法,并结合炉管实际运行的工况环境对发生泄漏的炉管进行综合分析。结果表明:造成加热炉炉管腐蚀穿孔的原因为管内水中的溶解氧腐蚀。为避免类似的腐蚀问题再次发生,从停工维护和运行监控两个方面提出防腐蚀建议和措施。Leakage occurred in furnace tube of a petrochemical company catalytic reforming unit.Combined with actual operating environment of furnace tube,it was comprehensively analyzed by means of macroscopic morphology analysis,material composition analysis,metallographic structure analysis,scanning electron microscopy observation,energy spectrum analysis and XRD analy⁃sis.The findings showed that the failure resulted from dissolved oxygen corrosion in tube water.To avoid similar corrosion issues from happening again,suggestions and measures were proposed from the aspects of shutdown maintenance and operation monitoring.

关 键 词：催化重整 加热炉炉管 腐蚀失效 溶解氧腐蚀 防腐对策 

分 类 号：TE986[石油与天然气工程—石油机械设备]