Use of Carbon Steel for Construction of Post-combustion CO2 Capture Facilities: A Pilot-Scale Corrosion Study

Wei Li, James Landon, Bradley Irvin, Liangfu Zheng, Keith Ruh, Liang Kong, Jonathan Pelgen, David Link, Jose D. Figueroa, Jesse Thompson, Heather Nikolic, Kunlei Liu

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Corrosion studies were carried out on metal coated and noncoated carbon steel as well as stainless steel in a pilot-scale post-combustion CO2 capture process. Aqueous 30 wt % monoethanolamine (MEA) solvent was used without any chemical additive for antioxidation to examine a worst-case scenario where corrosion is not mitigated. The corrosion rate of all carbon steels was almost zero in the absorber column and CO2 lean amine piping except for Ni-coated carbon steel (<1.8 mm/yr). Ni2Al3/Al2O3 precoated carbon steels showed initial protection but lost their integrity in the stripping column and CO2 rich amine piping, and severe corrosion was eventually observed for all carbon steels at these two locations. Stainless steel was found to be stable and corrosion resistant in all of the sampling locations throughout the experiment. This study provides an initial framework for the use of carbon steel as a potential construction material for process units with relatively mild operating conditions (temperature less than 80°C), such as the absorber and CO2 lean amine piping of a post-combustion CO2 capture process. It also warrants further investigation of using carbon steel with more effective corrosion mitigation strategies for process units where harsh environments are expected (such as temperatures greater than 100°C). (Figure Presented).

Original languageEnglish
Pages (from-to)4792-4803
Number of pages12
JournalIndustrial and Engineering Chemistry Research
Volume56
Issue number16
DOIs
StatePublished - Apr 26 2017

Bibliographical note

Publisher Copyright:
© 2017 American Chemical Society.

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • Industrial and Manufacturing Engineering

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