Comparative study on the inhibitive effect of Sulfadoxine–Pyrimethamine and an industrial inhibitor on the corrosion of pipeline steel in petroleum pipeline water

Ngobiri, N. C.; Oguzie, Emeka E.; Oforka, N. C.; Akaranta, Onyewuchi

doi:10.1016/j.arabjc.2015.04.004

Cited by 19 publications

(19 citation statements)

References 27 publications

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“…The corrosion inhibition efficiency of S+P increased with increase its concentration. These trend have also been previously attributed to increase in surface coverage (Oguzie et al, 2005, Ngobiri et al, 2015. The decrease in the values of βca and βan, and also the shift of the Ecorr values by -73.4 mV/SCE in the presence of 0.00001 M S+P are indicators that S+P is a mixed type corrosion inhibitor (Li et al, 2008;Okafor and Zheng, 2009).…”

Section: Electrochemical Studiessupporting

confidence: 75%

“…This resulted in www.bosaljournals/chemint/ editorci@bosaljournals.com good corrosion inhibition capacity of S+P. This behaviour has been severally reported (Huang et al, 2013;Johnsirani et al, 2013;Ngobiri et al, 2015). The corrosion inhibition efficiency of S+P increased with increase its concentration.…”

Section: Electrochemical Studiessupporting

confidence: 61%

“…This is corroborated by the electrochemical test results. The corrosion inhibited 7b surface may be attributed to the insoluble complex formed on the surface pipeline steel by S+P (Abdel-Gaber et al, 2006, Ngobiri et al, 2015.…”

Section: Surface Morphologymentioning

confidence: 99%

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Inhibition of pipeline steel corrosion in acidic environment using sulphadoxine and pyrimethamine

Int¹

2019

Preprint

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The anti-corrosive properties of sulphadoxine + pyrimethamine (S+P) on the corrosion of pipeline steel in acidic environment were investigated using electrochemical techniques. The results obtained showed an excellent inhibition efficiency which increased with increase in inhibitor concentration. The corrosion inhibition efficiency increased up to 99.04 % at 0.01M S+P and decreased with rise in temperature down to 85.93 % at 333 K and 0.01 M S+P, suggesting a physiosorptive mechanism of adsorption. Also the adsorption data was fitted into Langmuir and Temkin adsorption isotherms, while the inhibitive action was shown to proceed by mixed inhibition mode.

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Section: Electrochemical Studiessupporting

confidence: 75%

Section: Electrochemical Studiessupporting

confidence: 61%

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Inhibition of pipeline steel corrosion in acidic environment using sulphadoxine and pyrimethamine

Int¹

2019

Preprint

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“…A adsorção das moléculas promove um bloqueio dos sítios ativos, acarretando a formação um filme compacto sobre superfície metálica capaz de reduzir a taxa de corrosão El-Rehim et al 2010;Hmamoud et al 2015). Uma vez que a eficiência de um inibidor de adsorção está relacionada com a estrutura da molécula inibidora, a carga da superfície metálica e com o tipo de eletrólito presente no meio corrosivo El-Rehim et al 2010), os compostos orgânicos que apresentam em sua estrutura grupos funcionais com a presença de heteroatomos tais como: N, O e S, e de elétrons π (ligações múltiplas) são conhecidos por apresentarem uma maior eficiência de inibição (Albuquerque et al Hmamoud et al 2015;Torres et al 2016;Ngobiri et al 2015).…”

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Aplicação da Trietilamina como Inibidor de Corrosão do Aço API em meio de Cloreto

Silva

Vasconcellos²,

Tapanes³

et al. 2018

AS&T

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RESUMOA corrosão é um processo de degradação dos materiais metálicos que ocorre em função da interação do metal ou liga metálica com o ambiente. Os inibidores de corrosão são conhecidos por ser amplamente utilizados como método para a redução ou inibição da corrosão. Os inibidores orgânicos são chamados de inibidores de adsorção, pois se adsorvem sobre a superfície metálica, promovendo a formação de uma barreira protetora entre o metal e o meio corrosivo. Em geral moléculas orgânicas contendo átomos de enxofre, nitrogênio e oxigênio são aplicadas como inibidores de adsorção. Neste trabalho foi avaliado o potencial inibidor da trietilamina sobre a corrosão do aço API em meio de Nacl (0,1 mol/L) e HCl (0,1 mol/L). Foi verificado que o efeito inibidor da trietilamina é mais significativo em meio de cloreto de sódio.Palavras-chave: inibidor de corrosão, trietilamina, aço API, curva de polarização, ensaios gravimétricos. INTRODUÇÃOA corrosão é um processo de degradação que ocorre espontaneamente (por ação química ou eletroquímica) e é atualmente correspondente a uma parcela considerável de deterioração dos materiais metálicos. A degradação de materiais causada pelos processos corrosivos provoca danos em estruturas e equipamentos acarretando prejuízos de ordem econômica e ambiental (Gentil 1996; Nunes 2007). A degradação de equipamentos e estruturas metálicas em virtude da corrosão ocorre em diferentes segmentos industriais, tais como: indústria de petróleo e gás, ABSTRACT Corrosion is a process of degradation of metallic materials that occurs as a function of the interaction of the metal or metallic alloy with the environment. Corrosion inhibitors are widely employed as a method for reducing or inhibiting corrosion. Organic compounds are called adsorption inhibitors because they adsorb on the metal surface by forming a protective barrier between metals and corrosive enviroment. In general organic molecules containing sulfur, nitrogen and oxygen atoms are applied as adsorption inhibitors. In this work the triethylamine inhibitor potential on the corrosion of the API steel in Nacl (0.1 mol / L) and HCl (0.1 mol / L) medium was evaluated. It has been found that the inhibitory effect of triethylamine is more significant in sodium chloride medium.

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“…This thermodynamically inevitable process results to the indirect cost of corrosion damages [1]. Many corrosion mitigation methods abound, one of such is the application of corrosion inhibitors in metallic environments [2] [3].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Pattern of Pipeline Steel in Petroleum Pipeline Water in the Presence of Biomas Derived Extracts of <i>Brassica oleracea</i> and <i>Citrus paradise</i> Mesocarp

Ngobiri¹,

Okorosaye-Orubite²

2018

MSA

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Corrosion inhibition characteristics of two biomass derived extracts from outer leaves of Brassica oleracea (BO) and Citrus paradise mesocarps (CPM) on pipeline steel were investigated using modified gravimetric method at ambient temperature (28 ± ˚C). Petroleum pipeline water was used to simulate a pseudo-anaerobic corrosion cell. The result obtained showed that corrosion was a continuous process in the closed system, while BO and CPM showed near equivalence corrosion inhibition efficiency of 91.45% and 89.44% respectively at the concentrations studied. The thermodynamic data suggests inhibition to be through molecular adsorption on metal surface.

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Comparative study on the inhibitive effect of Sulfadoxine–Pyrimethamine and an industrial inhibitor on the corrosion of pipeline steel in petroleum pipeline water

Cited by 19 publications

References 27 publications

Inhibition of pipeline steel corrosion in acidic environment using sulphadoxine and pyrimethamine

Inhibition of pipeline steel corrosion in acidic environment using sulphadoxine and pyrimethamine

Aplicação da Trietilamina como Inibidor de Corrosão do Aço API em meio de Cloreto

Corrosion Pattern of Pipeline Steel in Petroleum Pipeline Water in the Presence of Biomas Derived Extracts of <i>Brassica oleracea</i> and <i>Citrus paradise</i> Mesocarp

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Comparative study on the inhibitive effect of Sulfadoxine–Pyrimethamine and an industrial inhibitor on the corrosion of pipeline steel in petroleum pipeline water

Cited by 19 publications

References 27 publications

Inhibition of pipeline steel corrosion in acidic environment using sulphadoxine and pyrimethamine

Inhibition of pipeline steel corrosion in acidic environment using sulphadoxine and pyrimethamine

Aplicação da Trietilamina como Inibidor de Corrosão do Aço API em meio de Cloreto

Corrosion Pattern of Pipeline Steel in Petroleum Pipeline Water in the Presence of Biomas Derived Extracts of &lt;i&gt;Brassica oleracea&lt;/i&gt; and &lt;i&gt;Citrus paradise&lt;/i&gt; Mesocarp

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Corrosion Pattern of Pipeline Steel in Petroleum Pipeline Water in the Presence of Biomas Derived Extracts of <i>Brassica oleracea</i> and <i>Citrus paradise</i> Mesocarp