Microbiologically Influenced Corrosion of a Pipeline in a Petrochemical Plant

被引:25
|
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
METALS | 2019年 / 9卷 / 04期
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.
引用
收藏
页数:14
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