New 1-(2-pyridinyl)-2-(o-, m-, p-hydroxyphenyl) benzimidazoles as corrosion inhibitors for API 5L X52 steel in acid media

Purpose This paper aims to evaluate the corrosion inhibition capacities of synthesized compounds 1-(2-pyridinyl)-2-(o, m-, p-hydroxyphenyl) benzimidazoles in API 5L X52 steel/HCl 1M corrosion system. Design/methodology/approach Electrochemical impedance spectroscopy technique was used. Findings The...

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Bibliographic Details
Published in:Anti-corrosion methods and materials 2018-03, Vol.65 (2), p.166-175
Main Authors: Rodriguez-Clemente, Edelmira, Barrera-Pascual, Victoria, Cervantes-Cuevas, Humberto, Aldana-González, Jorge, Uruchurtu-Chavarin, Jorge, Romero-Romo, Mario, Palomar-Pardavé, Manuel
Format: Article
Language:English
Subjects:
Analytical methods
Carbon steel
Chromatography
Corrosion
Corrosion inhibitors
Corrosion tests
Electrochemical impedance spectroscopy
Electrochemistry
Electrodes
High strength low alloy steels
Inhibitors
NMR
Nuclear magnetic resonance
Petroleum
Petroleum industry
Residence time
Steel
Steel pipes
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Summary:Purpose This paper aims to evaluate the corrosion inhibition capacities of synthesized compounds 1-(2-pyridinyl)-2-(o, m-, p-hydroxyphenyl) benzimidazoles in API 5L X52 steel/HCl 1M corrosion system. Design/methodology/approach Electrochemical impedance spectroscopy technique was used. Findings The studies determined that under stagnant conditions, the durability and efficiency were maintained over 80 per cent for up to 500 h of immersion, while the residence time started to decrease after 150 h at the best inhibitor concentration (150 ppm). Practical implications This work may help to attenuate corrosion problems in the petroleum industry. Originality/value It is the first time that 1-(2-pyridiniy)-2-(o-, m-, p-hydroxyphenyl) benzimidazoles were evaluated as corrosion inhibitors.
ISSN:0003-5599
1758-4221
DOI:10.1108/ACMM-06-2017-1811