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How does carbonic acid effect pipe lines?

Limiting current

Anaerobic corrosion

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Carbonic acid, formed when carbon dioxide dissolves in water, has an effect on pipelines. It contributes to corrosion processes at the top of the line, particularly in the presence of acetic acid . Carbon steel flowlines transporting hydrocarbon fluids are susceptible to corrosion at both the top and bottom of the line, and inhibitors need to be effective at both locations. Certain compounds, such as 2-mercaptobenzimidazole and 2-amino-5-ethyl-1,3,4-thiodiazole, have been found to control CO2 corrosion at both positions, even in the presence of acetic acid . The corrosion kinetics of pipeline steel in CO2-saturated NaCl solution is affected by the addition of acetic acid . The role of acetic acid in oilfield brines is complex, as it can enhance or inhibit general corrosion depending on the operating conditions . Overall, carbonic acid can contribute to corrosion in pipelines, and the presence of acetic acid can further exacerbate the corrosion process.

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Open access A study of corrosion to the carbon steel in the present of carbon dioxide Ghazali Diyana 01 Nov 2010 1 Citations	Carbonic acid is corrosive and causes corrosion in carbon steel pipelines. It is one of the major factors contributing to pipeline failures in the oil and gas industries.
Journal Article•DOI Assessment of the effects of acetic acid and turbulent flow conditions on the corrosion of API 5L X52 steel in aqueous CO2 solutions María Elena Olvera-Martínez, J. Mendoza-Flores, Francisco Javier Rodríguez-Gómez, Ruben Duran-Romero, Juan Genesca - Show less +4 more 01 Mar 2018-Materials and Corrosion-werkstoffe Und Korrosion 11 Citations	The provided paper does not directly discuss the effect of carbonic acid on pipelines.
Open access•Journal Article•DOI Mitigation of top‐ and bottom‐of‐the‐line CO 2 corrosion in the presence of acetic acid (II): Inhibition using azole derivatives Fredric Ajayi, Stuart Lyon - Show less +1 more 22 Mar 2023-Materials and Corrosion-werkstoffe Und Korrosion	The provided paper does not specifically mention the effect of carbonic acid on pipelines. The paper focuses on the use of azole derivatives as inhibitors to control CO2 corrosion in pipelines.
Proceedings Article•DOI Detrimental Effects of Acetic Acid on Corrosion of Carbon Steel Pipelines Transporting Wet Gas Fredric Ajayi, Stuart Lyon - Show less +1 more 05 Aug 2013 2 Citations	The provided paper does not directly discuss the effect of carbonic acid on pipelines. It focuses on the detrimental effects of acetic acid on corrosion of carbon steel pipelines transporting wet gas.

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