Carbon Dioxide Corrosion Inhibitors: A review

This article intends to summarize the corrosion inhibition of pipeline steels in aqueous carbon dioxide (CO ₂) environments. The emphasis is on various inhibitors, especially imidazolines used to mitigate mild steel corrosion under various conditions. The most predominant and feared type of corrosion attack in oil and gas industries is caused by CO ₂. The application of corrosion inhibitors is considered the most suitable method of combating CO ₂ corrosion of steel pipelines. The prime objective of this work is to summarize carbon dioxide corrosion inhibitors so far tested and reported against this type of attack. The information presented in this article is of significance for oil and gas industries that use steel pipeline for the transportation of oil and gas products. Furthermore, this review would be helpful in designing better inhibitors for the mitigation of CO ₂ corrosion in oil and gas industries.