CO2/H2S环境下管线顶部腐蚀研究的一种新方法

IF 1.5 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Engineering, Science and Technology Pub Date : 2023-08-28 DOI:10.1080/1478422X.2023.2250156

J. Neshati, M. Saremi, G. Mashhadi

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引用次数: 0

摘要

摘要控制线路顶部腐蚀（TLC）最常见的方法是使用缓蚀剂。设计了一个装置来模拟TLC条件，并测量咪唑啉基商业抑制剂存在下的腐蚀速率。基础溶液的温度为70°C，X65钢样品的温度分别为5°C和20°C。通过分别以21%和79%的比例吹扫CO2和H2S气体的混合物在大气条件下进行实验。当样品温度升高时，测量到TLC速率的增加。在本研究中，通过重量损失测量的平均腐蚀速率与由Tafel和线性极化电阻产生的瞬时腐蚀速率之间的差异是显著的。结果表明，样品表面温度对薄层色谱有显著影响。虽然表面温度为5°C的X65钢样品在20°C时的冷凝率约为其10倍，但在更高的温度下腐蚀率更高。

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A new approach in top-of-line corrosion studies in CO2/H2S environment

ABSTRACT The most common way to control Top of line Corrosion (TLC) is to use corrosion inhibitors. A setup was designed to simulate the TLC conditions and measure the corrosion rate in the presence of an Imidazoline-based commercial inhibitor. The base solution was at temperature 70°C and the samples X65 steel were at 5°C and 20°C. Experiments were carried out in atmospheric conditions by purging a mixture of CO2 and H2S gases in proportions of 21% and 79%, respectively. An increase in the TLC rate was measured when the sample temperature increased. The difference between the average corrosion rate measured by weight loss and the instantaneous resulting from Tafel and linear polarisation resistance was significant in this study. Results showed that the surface temperature of the sample has a significant effect on TLC. Although the condensation rate on X65 steel sample with surface temperature of 5°C was about ten times more at 20°C, the corrosion rate was more at higher temperatures.

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来源期刊

Corrosion Engineering, Science and Technology 工程技术-材料科学：综合

CiteScore

3.20

自引率

5.60%

发文量

审稿时长

3.4 months

期刊介绍： Corrosion Engineering, Science and Technology provides broad international coverage of research and practice in corrosion processes and corrosion control. Peer-reviewed contributions address all aspects of corrosion engineering and corrosion science; there is strong emphasis on effective design and materials selection to combat corrosion and the journal carries failure case studies to further knowledge in these areas.