Effect of Carboxylic Acids on Corrosion of Type 410 Stainless Steel in Pyrolysis Bio-Oil

Dino Sulejmanovic, James Keiser, Yi-Feng Su, Michael Kass, Jack Ferrell III, Mariefel Olarte, John Wade IV, Jiheon Jun

Research output: Contribution to journalArticlepeer-review

7 Scopus Citations

Abstract

Biomass-derived oils are renewable fuel sources and commodity products and are proposed to partially or entirely replace fossil fuels in sectors generally considered difficult to decarbonize such as aviation and maritime propulsion. Bio-oils contain a range of organic compounds with varying functional groups which can lead to polarity-driven phase separation and corrosion of containment materials during processing and storage. Polar compounds, such as organic acids and other oxygenates, are abundant in bio-oils and are considered corrosive to structural alloys, particularly to those with a low-Cr content. To study the corrosion effects of small carboxylic acids present in pyrolysis bio-oils, type 410 stainless steel (SS410) specimens were exposed in bio-oils with varying formic, acetic, propionic and hexanoic acid contents at 50 °C during 48 h exposures. The specific mass change data show a linear increase in mass loss with increasing formic acid concentration. Interestingly, a mild corrosion inhibition effect on the corrosion of SS410 specimens was observed with the addition of acetic, propionic and hexanoic acids in the bio-oil.

Original languageAmerican English
Article number11743
Number of pages11
JournalSustainability (Switzerland)
Volume14
Issue number18
DOIs
StatePublished - 2022

Bibliographical note

Publisher Copyright:
© 2022 by the authors.

NREL Publication Number

  • NREL/JA-5100-84530

Keywords

  • biomass
  • carboxylic acid
  • corrosion
  • pyrolysis bio-oils
  • stainless steel

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