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Utilizing benzotriazole inhibitor for the protection of metals against diffusion-controlled corrosion under flow conditions
Chemical Papers ( IF 2.2 ) Pub Date : 2020-05-25 , DOI: 10.1007/s11696-020-01213-2
Y. M. Youssef , N. M. Ahmed , S. A. Nosier , H. A. Farag , I. Hassan , M. H. Abdel-Aziz , G. H. Sedahmed

In this work, an annulus-type recirculated batch reactor is designed to study the influence of different process parameters on the corrosion rate of metals under diffusion-controlled conditions. The effect of solution flow rate (for both laminar and turbulent flow regimes), physical properties of the solution, annulus geometrical parameters, and the effect of adding benzotriazole inhibitor on the corrosion are investigated. The rate of corrosion was expressed in terms of the mass transfer coefficient in the form of an empirical dimensionless correlation. The maximum attained efficiency of inhibition is 98% in the case of laminar flow and 90% in the case of turbulent flow conditions. The importance of the present work with its practical application for the corrosion and protection of double pipe heat exchangers and condensers where the flow is developing was highlighted.

中文翻译:

利用苯并三唑抑制剂保护金属免受流动条件下扩散控制的腐蚀

在这项工作中,设计了一种环型循环间歇式反应器,以研究在扩散控制的条件下不同工艺参数对金属腐蚀速率的影响。研究了溶液流速(对于层流和湍流状态),溶液的物理性质,环空几何参数以及添加苯并三唑抑制剂对腐蚀的影响。腐蚀速率以传质系数的形式表示为经验的无量纲相关性。在层流情况下,最大的抑制效率为98%,在湍流条件下,则为90%。
更新日期:2020-05-25
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