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Wyszukujesz frazę "corrosion inhibitor" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Photochemical screening and corrosion inhibition of Poupartia birrea back extracts as a potential green inhibitor for mild steel in 0.5 M H2SO4 medium
Autorzy:
Louis, H.
Japari, J.
Sadia, A.
Philip, M.
Bamanga, A.
Powiązania:
https://bibliotekanauki.pl/articles/1118151.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Poupartia birrea
corrosion
inhibitor
mild steel
Opis:
Corrosion of metals is a serious environmental problem and has been given much attention in the oil and gas industries. In several industrial processes (acid cleaning and etching, removal of rust and scale), metal surfaces are often made to come in contact with acids. In the present study, an attempt was made to examine Poupartia birrea (P. birres) back extract as a potential green corrosion inhibitor for mild steel in a 0.5 M H2SO4 medium, using the weight loss determination method. The results of our work indicate that highest inhibition efficiency exhibited by Poupartia birrea is 70%. The inhibiting effect of the studied extract could be attributed to the presence of phytochemical constituents present in the extract that are adsorbed on the surface of the mild steel. The plant extract can, hence, be considered as being eco-friendly and an effective green corrosion inhibitor for mild steel exposed to an acid medium.
Źródło:
World News of Natural Sciences; 2017, 10; 95-100
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigating the extract constituents and corrosion inhibiting ability of Sida acuta leaves
Autorzy:
Adindu Chinonso, B.
Oguzie Emeka, E.
Powiązania:
https://bibliotekanauki.pl/articles/1113826.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Sida acuta
chemical constituents
corrosion
inhibitor
mild steel
Opis:
Constituents of the ethanol extract of Sida acuta (SA) leaves were investigated by phytochemical, GC-MS and FTIR studies and its corrosion inhibition effects on mild steel was studied in 1 M HCl and 0.5 M H2SO4 solutions, using gravimetric and electrochemical methods of corrosion monitoring. The surface morphology of the mild steel surface before and after corrosion was also assessed using SEM imaging. The phytochemical, GC-MS and FTIR results revealed that SA contains carbonyl groups, aromatic rings, and double bonds that make it a prospective corrosion inhibitor for mild steel. Moreover, gravimetric results indicated that SA is an effective additive for the corrosion of mild steel at all the concentrations studied. Finally, the electrochemical results showed that SA inhibited both the anodic and cathodic half reactions by the adsorption of the extract constituents on the mild steel surface; this was further confirmed by the SEM investigations.
Źródło:
World News of Natural Sciences; 2017, 13; 63-81
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Green corrosion inhibitor for mild steel in 2 M HCl solution: Flavonoid extract of Erigeron floribundus
Autorzy:
Abeng, Fidelis Ebunta
Idim, Veronica David
Powiązania:
https://bibliotekanauki.pl/articles/1177856.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Erigeron floribundus
Flavonoid
Green inhibitor
corrosion
mild steel
Opis:
The potential of flavonoid extract of Erigeron floribundus as green inhibitor for the corrosion of mild steel in 2 M HCl solution was studied using gasometric method. The results obtained, indicated that the extract is an adsorption inhibitor for the corrosion of mild steel. The inhibition efficiency of the inhibitor was found to increased with increase in concentration of the inhibitor. From the observed trend for the variation of inhibition efficiency with temperature and the range of value obtained from activation energy (16.16-3.02 KJmol-1), enthalpy (13.5-38.84 KJmol-1), entropy (-22.67 to 88.44 KJmol-1) and free energy (-4.23 to -2.61 KJmol-1), a chemical and physical adsorption mechanism is propose for the adsorption of the inhibitor on the mild steel surface. In addition, the adsorption is endothermic, spontaneous and is best described by Langmuir adsorption isotherm.
Źródło:
World Scientific News; 2018, 98; 89-99
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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