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Microbiologically Influenced Corrosion of a Pipeline in a Petrochemical Plant
被引:26
|作者:
Khouzani, Mahdi Kiani
[1
]
Bahrami, Abbas
[1
]
Hosseini-Abari, Afrouzossadat
[2
]
Khandouzi, Meysam
[1
]
Taheri, Peyman
[3
]
机构:
[1] Isfahan Univ Technol, Dept Mat Engn, Esfahan 8415683111, Iran
[2] Univ Isfahan, Dept Biol, Fac Sci, Esfahan 817463441, Iran
[3] Delft Univ Technol, Dept Mat Sci & Engn, Mekelweg 2, NL-2628 CD Delft, Netherlands
来源:
关键词:
microbiologically influenced corrosion (MIC);
sulfate-reducing bacteria (SRB);
failure;
amine pipeline;
SULFATE-REDUCING BACTERIA;
MICROBIAL CORROSION;
STAINLESS-STEEL;
MITIGATION;
SYSTEMS;
D O I:
10.3390/met9040459
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
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.
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页数:14
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