In situ electrochemical corrosion measurements of carbon steel in supercritical CO2 using a membrane-coated electrochemical probe

Justin Beck, Mark Valentinovich Fedkin, Serguei Lvov, Margaret Ziomek-Moroz, Gordon R. Holcomb, Joseph Tylczak, David Alman

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Growing interest in transporting supercritical carbon dioxide (scCO 2) for enhanced oil recovery and carbon capture and storage has led to an increased interest in the corrosion behavior of pipeline steels at varying levels of water contamination. Electrochemical measurements in scCO2 fluids have been limited by low solution conductivity even when saturated with water vapor. Recent efforts to overcome this barrier by using electrochemical probes coated with a thin membrane of ion conducting polymer are reported here. A prototype probe was tested using carbon steel and corrosion tests were performed using linear polarization resistance, electrochemical impedance spectroscopy, and electrochemical frequency modulation. While the construction of the probe had an impact on the electrolyte resistance and mass transfer impedance, the charge transfer impedance varied little across the tested probes. The probe design could be used to predict worst-case scenario corrosion rates from charge transfer control for a variety of lowconductivity environments.

Original languageEnglish (US)
Title of host publicationCorrosion (General) - 221st ECS Meeting
Pages39-50
Number of pages12
Volume45
Edition19
DOIs
StatePublished - 2013
EventSymposium on Corrosion General Session - 221st ECS Meeting - Seattle, WA, United States
Duration: May 6 2012May 10 2012

Other

OtherSymposium on Corrosion General Session - 221st ECS Meeting
CountryUnited States
CitySeattle, WA
Period5/6/125/10/12

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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