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炼厂常压塔的腐蚀分析与设计选材
引用本文:谷峥,臧红武.炼厂常压塔的腐蚀分析与设计选材[J].石油机械,2001,29(11):47-48,51.
作者姓名:谷峥  臧红武
作者单位:中国石油天然气集团公司华东勘察设计研究院
摘    要:炼油厂常压蒸馏装置的常压塔运行介质原油中夹带杂质,导致产生低温HCI-H2S-H2O腐蚀、硫及硫化物腐蚀和高温环烷酸腐蚀,其中以高温环烷酸腐蚀尤为突出。防止低温 HCl-H2S-H2O腐蚀常采取原油深度脱盐,脱(盐)后注碱,塔顶挥发线注氨、注缓蚀剂和注水等防腐工艺;防止高温环烷酸腐蚀可将常压塔的主体材料采用20R+316L复合钢板,常压塔内件采用普通碳钢渗铝材料。中原 250×104t/a常压蒸馏装置的常压塔下部塔体制造时采用 20R+316L复合钢板来防止环烷酸腐蚀。

关 键 词:常压塔  腐蚀  防腐  选材

Corrosion analysis and material selection of atmospheric distillation tower in refinery
Gu Zheng,Zang Hongwu..Corrosion analysis and material selection of atmospheric distillation tower in refinery[J].China Petroleum Machinery,2001,29(11):47-48,51.
Authors:Gu Zheng  Zang Hongwu
Abstract:Because of impurities carried in the working medium of the atmospheric distillation tower in the refinery, various corrosions are produced, including low-temperature HC1-H2S-H2O corrosion, sulphur and sulfide corrosion and high-temperature naphthene acid corrosion, of all the naphthene acid corrosion is the most serious. In order to prevent the high-temperature naphthene acid corrosion, 20R 3 16L compound steel plate is used as the main material of the atmospheric distillation tower, and the internal components of the tower adopt the calorized carbon steel as raw material.
Keywords:Subject Concept Terms atmospheric distillation tower corrosion anti-corrosion material selection
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