Cu (II)-Red Onion Skin Extract-Azo metal Complex - A Potential for Oilfield Applications

With growing awareness of the environmental impact of some conventional production chemicals and concerns about the depletion of non-renewable natural resources, increased efforts are being made to use renewable and non-toxic materials in the oilfield. In this study, a potential green scale inhibitor was developed from the skin of red onions and evaluated for calcium sulphate, calcium carbonate and barium scale inhibition. Based on the different extraction processes utilized, two products were obtained and characterized using FTIR and SEM and evaluated using a static jar test procedure. The FTIR results confirmed the bands that make up the major constituents (quercetin) and other important compounds, which supports the present study. Laboratory evaluation show that ROSE can efficiently inhibit calcium sulphate scale and barium sulphate scales with a good inhibition rate of greater than 75% at an optimum dosage. Effect of temperature and dosage on inhibition performance revealed that ROSE is stable at higher temperatures and can effectively inhibit calcium and barium sulphate scales at nearly the same rate without degradation but requires additional dosage to produce same result for calcium carbonate scale. Also, the effect of time reveals that scale inhibitor performs a continuous CaSO4 and CaCO3 inhibition. Not only does ROSE perform excellently in the laboratory condition as a green scale inhibitor, but it also show a relatively close performance rate when compared to an existing commercial inhibitor which indicate that ROSE has a high potential for use in the oil industry.

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“…This study adopted two extraction processes: a solvent extraction mechanism [3,23] and cold extraction process [24].…”

Section: Extraction Processmentioning

confidence: 99%

Evaluating the Effectiveness of Red Onion Skin Extract Derivatives as Oilfield Scale Inhibitors

Una

Appah

Joseph

et al. 2021

JENRR

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“…Research has shown that aromatic azo compounds have the ability to form stable complexes with transition metal due to the presence of the azo groups (-N=N-), oxygen heteroatoms as well as the aromatic rings [12]- [15].A recent study carried out by Akaho and his coworkers showed that red onion skin extract (ROSE) azo compounds can form stable complexes with Cu 2+ ions [16]. This suggests that these azo compounds could be used as low-cost ligands for the extraction of heavy metals such as copper, cobalt, zinc, iron, nickel and many others from aqueous media.…”

Section: Introduction Obalt Ion (Co 2+mentioning

confidence: 99%

Synthesis and Application of Eco-Friendlyred Onion Skins Azo Dyes for the Removal of Cobalt from Aqueous Media

Manizabayo¹,

Niyomugabo²,

Chukwu³

2021

IJRIAS

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The present study investigated the synthesis of low cost and environmental friendly red onion skins azo dyes derivatives and their application as ligands for the extraction of cobalt (II) ions from aqueous media. The effect of pH, agitation time, ligand concentration, and metal ion concentration on Co 2+ ions removal efficiency as well as the stoichiometric coefficients were examined. The study revealed that the azo dyes were effective in removing Co 2+ ion from aqueous solution. The highest removal efficiencies were obtained within the pH ranges 6-7. The results also showed that the % extraction (% E) of Co 2+ ions increased with agitation time and concentration of the ligand. The slope analysis carried out on the experimental data demonstrated that Co 2+ ions reacted with the ligands in 1:2 metals to ligand ratio.

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Cu (II)-Red Onion Skin Extract-Azo metal Complex - A Potential for Oilfield Applications

Cited by 2 publications

References 17 publications

Evaluating the Effectiveness of Red Onion Skin Extract Derivatives as Oilfield Scale Inhibitors

Evaluating the Effectiveness of Red Onion Skin Extract Derivatives as Oilfield Scale Inhibitors

Synthesis and Application of Eco-Friendlyred Onion Skins Azo Dyes for the Removal of Cobalt from Aqueous Media

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