Numerical and electrochemical analyses on carbon dioxide corrosion of X80 pipeline steel under different water film thicknesses in NACE solution

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• 作者：Xiaorui Guan^a ; Dalei Zhang^b ; ^{zhangdal2008@126.com} ; Jianjun Wang^a ; Youhai Jin^a ; ^{jinyh@upc.edu.cn} ; Yan Li^b
• 关键词：Flow in pipe ; Multiphase fluid dynamics ; Carbon dioxide corrosion ; Gas-liquid flow
• 刊名：Journal of Natural Gas Science and Engineering
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：37
• 期：Complete
• 页码：199-216
• 全文大小：6224 K
• 卷排序：37

文摘

Wavy thin water film flow in a wet gas pipeline was studied by computational fluid dynamics (CFD) simulation. CO2 corrosion of X80 steel under different water film thicknesses was investigated using a wire beam electrode (WBE). Maximal anodic current density was observed at 350 μm. The side walls of the elbow and the impact walls of the vertical pipe downstream faced a high risk of mesa attack.