CO2 and H2S corrosion in oil pipelines
Master thesis
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http://hdl.handle.net/11250/182434Utgivelsesdato
2010Metadata
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Sammendrag
This study has been conducted to find the corrosion behavior and corrosion rates of
carbon steel in the presence of CO2 and H2S at various pH levels using classical
electrochemical techniques. It was found that in a galvanic coupling, the metal in the
sulfide environment gets protection even at pH 3, and the bare metal which is in
neutral pH was corroding sacrificially. The linear polarization resistance
measurements and potentiodynamic scan of the metal without the galvanic coupling
show a high degree of corrosion at pH 3. The corrosion rate generally was higher for
CO2/H2S system than for H2S system.
Beskrivelse
Master's thesis in Environmental technology: water science