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重整装置预加氢进料换热器管束失效分析
引用本文:张卫斌,龚德胜,羿仰桃. 重整装置预加氢进料换热器管束失效分析[J]. 石油化工腐蚀与防护, 2011, 28(2): 61-64
作者姓名:张卫斌  龚德胜  羿仰桃
作者单位:岳阳长岭设备研究所有限公司,湖南岳阳,414012
摘    要:通过现场勘察和检验检测分析,认为某石化公司重整装置预加氢进料换热器管束的腐蚀外表面较内表面严重得多。管束外表面的腐蚀主要是H2S等腐蚀性介质引起的较严重的均匀腐蚀,且局部结垢形成垢下腐蚀,因活性阴离子的存在而导致局部发生腐蚀穿孔。在分析失效原因的基础上,从设计、工艺和材料等方面提出了防腐蚀措施。

关 键 词:换热器管束  穿孔  腐蚀  原因分析  防护措施

Failure Analysis of Feed Heat Exchanger Tubes of Pre-hydrotreater in Catalytic Reformer
Zhang Weibin,Gong Desheng,Yi Yangtao Equipment Research Institute of Changling Refining , Chemical Company. Failure Analysis of Feed Heat Exchanger Tubes of Pre-hydrotreater in Catalytic Reformer[J]. Petrochemical Corrosion and Protection, 2011, 28(2): 61-64
Authors:Zhang Weibin  Gong Desheng  Yi Yangtao Equipment Research Institute of Changling Refining & Chemical Company
Affiliation:Zhang Weibin,Gong Desheng,Yi Yangtao Equipment Research Institute of Changling Refining & Chemical Company(Yueyang Hunan 414012)
Abstract:The site investigation, inspection and testing concluded that the external surface of feed heat exchanger tubes of the prehydrotreater of a catalytic reformer suffered from corrosion more seriously than the internal surface. The corrosion of the external
Keywords:heat exchanger tube  pitting  corrosion  cause analysis  prevention measures
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