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Treated Rhizophora mucronata tannin as a corrosion inhibitor in chloride solution
Treated Rhizopora mucronata tannin (RMT) as a corrosion inhibitor for carbon steel and copper in oil and gas facilities was investigated. Corrosion rate of carbon-steel and copper in 3wt% NaCl solution by RMT was studied using chemical (weight loss method) and spectroscopic (FTIR) techniques at vari...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6082518/ https://www.ncbi.nlm.nih.gov/pubmed/30089104 http://dx.doi.org/10.1371/journal.pone.0200595 |
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author | Agi, Augustine Junin, Radzuan Rasol, Muhammad Gbadamosi, Afeez Gunaji, Radhika |
author_facet | Agi, Augustine Junin, Radzuan Rasol, Muhammad Gbadamosi, Afeez Gunaji, Radhika |
author_sort | Agi, Augustine |
collection | PubMed |
description | Treated Rhizopora mucronata tannin (RMT) as a corrosion inhibitor for carbon steel and copper in oil and gas facilities was investigated. Corrosion rate of carbon-steel and copper in 3wt% NaCl solution by RMT was studied using chemical (weight loss method) and spectroscopic (FTIR) techniques at various temperatures in the ranges of 26–90°C. The weight loss data was compared to the electrochemical by the application of Faraday’s law for the conversion of corrosion rate data from one system to another. The inhibitive efficiency of RMT was compared with commercial inhibitor sodium benzotriazole (BTA-S). The best concentration of RMT was 20% (w/v), increase in concentration of RMT decreased the corrosion rate and increased the inhibitive efficiency. Increase in temperature increased the corrosion rate and decreased the inhibitive efficiency but, the rate of corrosion was mild with RMT. The FTIR result shows the presence of hydroxyl group, aromatic group, esters and the substituted benzene group indicating the purity of the tannin. The trend of RMT was similar to that of BTA-S, but its inhibitive efficiency for carbon-steel was poor (6%) compared to RMT (59%). BTA-S was efficient for copper (76%) compared to RMT (74%) at 40% (w/v) and 20% (w/v) concentration respectively. RMT was efficient even at low concentration therefore, the use of RMT as a cost effective and environmentally friendly corrosion inhibiting agent for carbon steel and copper is herein proposed. |
format | Online Article Text |
id | pubmed-6082518 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-60825182018-08-28 Treated Rhizophora mucronata tannin as a corrosion inhibitor in chloride solution Agi, Augustine Junin, Radzuan Rasol, Muhammad Gbadamosi, Afeez Gunaji, Radhika PLoS One Research Article Treated Rhizopora mucronata tannin (RMT) as a corrosion inhibitor for carbon steel and copper in oil and gas facilities was investigated. Corrosion rate of carbon-steel and copper in 3wt% NaCl solution by RMT was studied using chemical (weight loss method) and spectroscopic (FTIR) techniques at various temperatures in the ranges of 26–90°C. The weight loss data was compared to the electrochemical by the application of Faraday’s law for the conversion of corrosion rate data from one system to another. The inhibitive efficiency of RMT was compared with commercial inhibitor sodium benzotriazole (BTA-S). The best concentration of RMT was 20% (w/v), increase in concentration of RMT decreased the corrosion rate and increased the inhibitive efficiency. Increase in temperature increased the corrosion rate and decreased the inhibitive efficiency but, the rate of corrosion was mild with RMT. The FTIR result shows the presence of hydroxyl group, aromatic group, esters and the substituted benzene group indicating the purity of the tannin. The trend of RMT was similar to that of BTA-S, but its inhibitive efficiency for carbon-steel was poor (6%) compared to RMT (59%). BTA-S was efficient for copper (76%) compared to RMT (74%) at 40% (w/v) and 20% (w/v) concentration respectively. RMT was efficient even at low concentration therefore, the use of RMT as a cost effective and environmentally friendly corrosion inhibiting agent for carbon steel and copper is herein proposed. Public Library of Science 2018-08-08 /pmc/articles/PMC6082518/ /pubmed/30089104 http://dx.doi.org/10.1371/journal.pone.0200595 Text en © 2018 Agi et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Agi, Augustine Junin, Radzuan Rasol, Muhammad Gbadamosi, Afeez Gunaji, Radhika Treated Rhizophora mucronata tannin as a corrosion inhibitor in chloride solution |
title | Treated Rhizophora mucronata tannin as a corrosion inhibitor in chloride solution |
title_full | Treated Rhizophora mucronata tannin as a corrosion inhibitor in chloride solution |
title_fullStr | Treated Rhizophora mucronata tannin as a corrosion inhibitor in chloride solution |
title_full_unstemmed | Treated Rhizophora mucronata tannin as a corrosion inhibitor in chloride solution |
title_short | Treated Rhizophora mucronata tannin as a corrosion inhibitor in chloride solution |
title_sort | treated rhizophora mucronata tannin as a corrosion inhibitor in chloride solution |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6082518/ https://www.ncbi.nlm.nih.gov/pubmed/30089104 http://dx.doi.org/10.1371/journal.pone.0200595 |
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