| T0103苯甲酸蒸馏塔内壁腐蚀沟槽产生原因 |
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| 引用本文： | 李庆华,王博,杨根柱,李德超,熊金平,陆正良.T0103苯甲酸蒸馏塔内壁腐蚀沟槽产生原因[J].腐蚀与防护,2011(7):570-573. |
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| 作者姓名： | 李庆华 王博 杨根柱 李德超 熊金平 陆正良 |
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| 作者单位： | 中国石油化工股份有限公司石家庄炼化分公司;北京化工大学碳纤维及功能高分子教育部重点实验室;钢铁研究总院; |
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| 摘 要： | 采用化学方法、金相显微镜和扫描电镜等对失效后的T0103苯甲酸蒸馏第十二层塔简体上的腐蚀沟槽进行了分析。结果表明，腐蚀沟槽位于设备补焊处的焊缝区；补焊时所选焊条耐蚀性太低，且与简体316L不锈钢基体不匹配，是导致其腐蚀失效的主要原因。
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| 关 键 词： | 316L不锈钢 腐蚀 失效分析 |
Inwall Corrosion of T0103 Distillation Tower of Benzoic Acid |
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| LI Qing-hua,WANG Bo,YANG Gen-zhu,LI De-chao,XIONG Jin-ping,LU Zheng-liang.Inwall Corrosion of T0103 Distillation Tower of Benzoic Acid[J].Corrosion & Protection,2011(7):570-573. |
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| Authors: | LI Qing-hua WANG Bo YANG Gen-zhu LI De-chao XIONG Jin-ping LU Zheng-liang |
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| Affiliation: | LI Qing-hua~1,WANG Bo~1,YANG Gen-zhu~1,LI De-chao~1,XIONG Jin-ping~2,LU Zheng-liang~3 (1.Shijiazhuang Refining Branch,China Petrochemical Co.,Ltd..Shijiazhuang 050032,China,2.Key Laboratory of Carbon Fiber and Functional Polymers,Ministry of Education,Beijing University of Chemical Technology,Beijing 100029,3.Central Iron and Steel Research Institute,Beijing 100081,China) |
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| Abstract: | The inwall corrosion of failed T0103 distillation tower of benzoic acid was investigated by chemical method,optical microscopy and SEM.The results showed that the corrosive groove of the tower inwall was formed due to the corrosion of repaired weld zone.The welding rod used to repaire failed to match with 316L stainless steel of tower basic,which induced the corrosion of the tower inwall. |
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| Keywords: | 316L stainless steel corrosion failure analysis |
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