Volume 5, Issue 18 (12-2015)
مهندسی خوردگی 2015, 5(18): 0-0 |
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Investigtion of acidic sour water corrosion behaviour of API 5L Gr.B steel in acidic media in the presence of bis N-(3-nitrobenzyl)benzamide. مهندسی خوردگی 2015; 5 (18)
URL: http://journal.ica.ir/article-1-148-en.html
URL: http://journal.ica.ir/article-1-148-en.html
Abstract: (310 Views)
In most oil and gas industry, the corrosion rate of metals is accelerated by the presence of sulfur containing ions such as H2S species. In this study, acidic sour water corrosion of API 5L Gr.B carbon steel in oxygen-free Na2SO4+Na2S solution in the presence different concentrations of bisN-(3-nitrobenzyl) benzamide as corrosion inhibitor at temperature of 25˚C were investigated by electro impedance spectroscopy and potentiodynamic polarization technique. Potentiodynamic polarization curves showed that the inhibitor decreased the corrosion rate of API 5L carbon steel by postponing hydrogen evolution. The results showed that the inhibition efficiencies of carbon steel increased significantly with the increase of concentration of inhibitor. The inhibition efficiencies, calculated from impedance results, show the same trend as those obtained from polarization measurements.
Keywords: Acidic sour water corrosion, API 5L Gr.B steel, Corrosion inhibitor, Polarization technique, EIS
Type of Study: Research |
Subject:
General
Received: 2022/11/26 | Accepted: 2015/12/31 | Published: 2015/12/31
Received: 2022/11/26 | Accepted: 2015/12/31 | Published: 2015/12/31
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