New insights on the role of CO^sub 2^ in the mechanism of carbon steel corrosion

New insights on the role of CO^sub 2^ in the mechanism of carbon steel corrosion

CO2 corrosion is an important process affecting oil and gas industries. Understanding the role of CO2 in the mechanism of carbon steel dissolution may contribute to better predict corrosion rate. Impedance, local pH and weight loss tests were measured using X65 carbon steel at pH 4 in the presence a...

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Veröffentlicht in:Corrosion science 2017-05, Vol.120, p.239
Hauptverfasser: Almeida, Tatiana das Chagas, Bandeira, Merlin Cristina Elaine, Moreira, Rogaciano Maia, Mattos, Oscar Rosa
Format: Artikel
Sprache:eng
Schlagworte:
Carbon dioxide
Carbon steel
Carbon steels
Chemical reactions
Corrosion
Corrosion mechanisms
Corrosion rate
Corrosion tests
Dissolution
Impedance
Natural gas
Studies
Thermogravimetric analysis
Weight loss measurement
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Zusammenfassung:CO2 corrosion is an important process affecting oil and gas industries. Understanding the role of CO2 in the mechanism of carbon steel dissolution may contribute to better predict corrosion rate. Impedance, local pH and weight loss tests were measured using X65 carbon steel at pH 4 in the presence and absence of CO2, including high CO2 pressure experimental conditions. The results did not evidence a direct reaction of CO2 on the free iron surface.
ISSN:0010-938X
1879-0496