| 减压塔腐蚀状况及防腐蚀对策 |
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| 引用本文： | 商颜芳.减压塔腐蚀状况及防腐蚀对策[J].石油化工腐蚀与防护,2011,28(6):21-24. |
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| 作者姓名： | 商颜芳 |
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| 作者单位： | 中国石油化工股份有限公司济南分公司,山东济南,250101 |
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| 摘 要： | 从环烷酸的腐蚀机理、影响因素及减压塔实际运行情况等方面进行了分析，认为减压塔多次改造后塔径一直未变导致油气流速过高、油气处于多项流态和酸值逐年升高等因素导致减压塔发生环烷酸腐蚀。针对生产实际情况提出了塔内壁贴板、降低加工量、运行监测和择机更换新塔等相应的防腐措施。
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| 关 键 词： | 减压塔 环烷酸 腐蚀 贴板 消氢 |
Corrosion of vacuum Distillation Tower and Prevention Measures |
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| Shang Yanfang.Corrosion of vacuum Distillation Tower and Prevention Measures[J].Petrochemical Corrosion and Protection,2011,28(6):21-24. |
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| Authors: | Shang Yanfang |
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| Affiliation: | Shang Yanfang (SINOPEC Jinan Petrochemical Company, Jinan, Shandong 250101 ) |
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| Abstract: | The corrosion in vacuum distillation tower was analyzed in respect of corrosion mechanisms of naphthenic acid, impact factors and tower operating conditions. It was concluded that the naphthenic acid corrosion was caused by higher velocity of oil vapor due to smaller vacuum tower diameter, multi - phase flow and increasing TAN in crude oil processed. Installation of plate on the internal wall of the tower, reduction of processing capacity, monitoring of unit operation and replacement of the tower at a proper time are recommended to protect the corrosion. |
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| Keywords: | vacuum tower naphthenic acid corrosion installation of plate reduction of hydrogen |
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