Electrochemical corrosion of carbon steel exposed to biodiesel/simulated seawater mixture

Wei Wang, Peter E. Jenkins, Zhiyong Ren

Research output: Contribution to journalArticle

29 Scopus citations

Abstract

The electrochemical corrosion of carbon steel exposed to a mixture of biodiesel and 3.5% NaCl solution simulated seawater was characterized using wire beam electrode (WBE) technique. Both optical images and in situ potential and current measurements showed that all the anodes and most cathodes formed in the water phase, but the cathodes were mainly located along the water/biodiesel interface. Due to oxygen concentration gradient and cross-phase ion transfer, low corrosion currents were also detected in biodiesel phase. Further anode reaction was partially blocked by iron rust, but the alkali residual in biodiesel may interact with corrosion and deteriorate biodiesel quality.

Original languageEnglish (US)
Pages (from-to)215-219
Number of pages5
JournalCorrosion Science
Volume57
DOIs
StatePublished - Apr 1 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)

Keywords

  • A. Mild steel
  • C. Interfaces

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