Next Article in Journal
Effects of a Post-Weld Heat Treatment on the Mechanical Properties and Microstructure of a Friction-Stir-Welded Beryllium-Copper Alloy
Previous Article in Journal
Mold-Level Prediction for Continuous Casting Using VMD–SVR
Previous Article in Special Issue
Biomineralization of Platinum by Escherichia coli
Article Menu
Issue 4 (April) cover image

Export Article

Open AccessArticle

Microbiologically Influenced Corrosion of a Pipeline in a Petrochemical Plant

1
Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran
2
Department of Biology, Faculty of Sciences, University of Isfahan, Isfahan 817463441, Iran
3
Delft University of Technology, Department of Materials Science and Engineering, Mekelweg 2, 2628 CD Delft, The Netherlands
*
Author to whom correspondence should be addressed.
Metals 2019, 9(4), 459; https://doi.org/10.3390/met9040459
Received: 1 March 2019 / Revised: 13 April 2019 / Accepted: 16 April 2019 / Published: 19 April 2019
(This article belongs to the Special Issue Microbes Meet Metals)
  |  
PDF [14570 KB, uploaded 19 April 2019]
  |     |  

Abstract

This paper investigates a severe microbiologically influenced failure in the elbows of a buried amine pipeline in a petrochemical plant. Pipelines can experience different corrosion mechanisms, including microbiologically influenced corrosion (MIC). MIC, a form of biodeterioration initiated by microorganisms, can have a devastating impact on the reliability and lifetime of buried installations. This paper provides a systematic investigation of a severe MIC-related failure in a buried amine pipeline and includes a detailed microstructural analysis, corrosion products/biofilm analyses, and monitoring of the presence of causative microorganisms. Conclusions were drawn based on experimental data, obtained from visual observations, optical/electron microscopy, and Energy-dispersive X-ray spectroscopy (EDS)/X-Ray Diffraction (XRD) analyses. Additionally, monitoring the presence of causative microorganisms, especially sulfate-reducing bacteria which play the main role in corrosion, was performed. The results confirmed that the failure, in this case, is attributable to sulfate-reducing bacteria (SRB), which is a long-known key group of microorganisms when it comes to microbial corrosion. View Full-Text
Keywords: microbiologically influenced corrosion (MIC); sulfate-reducing bacteria (SRB); failure; amine pipeline microbiologically influenced corrosion (MIC); sulfate-reducing bacteria (SRB); failure; amine pipeline
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Kiani Khouzani, M.; Bahrami, A.; Hosseini-Abari, A.; Khandouzi, M.; Taheri, P. Microbiologically Influenced Corrosion of a Pipeline in a Petrochemical Plant. Metals 2019, 9, 459.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top