碳钢 A106 Gr B 在含胺-CO2 的溶液中的腐蚀率

Yuli Panca Asmara¹, Tedi Kurniawan², Kushendarsyah Saptaji³
1、英迪国际大学工程与工料测量学院
2、卡塔尔社区大学工程技术系
3、桑波纳大学工程与技术学院

摘要

二氧化碳（CO2）是石油和天然气工业中的一种腐蚀性元素。为了防止 CO2 对碳钢管道的腐蚀，通常使用胺
基溶剂和苛性碱溶液。因此，胺基溶剂和苛性钠溶液在减少腐蚀风险方面的效果成为决定碳钢管道使用寿命的关键参
数。在这项研究中，研究了碳钢 A106 Gr B 在含饱和 CO2 气体和苛性碱溶液的胺溶液中的腐蚀率。实验是在静态条件下
进行的，使用线性极化电阻（LPR）技术来测量腐蚀率（根据 ASTM G 5-94）。实验发现，胺基溶液中的腐蚀率显著。
不知何故，在含有饱和二氧化碳气体的胺基溶剂中，腐蚀率增加到 200%。温度从室温增加到 50℃，也增加了腐蚀率。
同时，在胺基溶液中加入苛性碱也降低了碳钢的腐蚀率。

关键词

CO2 腐蚀；碳钢；胺类溶剂；苛性碱溶液；腐蚀率

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