Electrochemical removal of pyrite scale using green formulations

Abstract Pyrite scale formation is a critical problem in the hydrocarbon production industry; it affects the flow of hydrocarbon within the reservoir and the surface facilities. Treatments with inorganic acids, such as HCl, results in generation toxic hydrogen sulfide, high corrosion rates, and low...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Musa Ahmed, Ibnelwaleed A. Hussein, Abdulmujeeb T. Onawole, Mohammed A. Saad, Mazen Khaled
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0cfe66e12cdc450d89221613e4f22e62
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:0cfe66e12cdc450d89221613e4f22e62
record_format	dspace
spelling	oai:doaj.org-article:0cfe66e12cdc450d89221613e4f22e622021-12-02T13:20:02ZElectrochemical removal of pyrite scale using green formulations10.1038/s41598-021-84195-92045-2322https://doaj.org/article/0cfe66e12cdc450d89221613e4f22e622021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84195-9https://doaj.org/toc/2045-2322Abstract Pyrite scale formation is a critical problem in the hydrocarbon production industry; it affects the flow of hydrocarbon within the reservoir and the surface facilities. Treatments with inorganic acids, such as HCl, results in generation toxic hydrogen sulfide, high corrosion rates, and low dissolving power. In this work, the dissolution of pyrite scale is enhanced by the introduction of electrical current to aid the chemical dissolution. The electrolytes used in this study are chemical formulations mainly composed of diethylenetriamine-pentaacetic acid–potassium (DTPAK5) with potassium carbonate; diethylenetriamine pentaacetic acid sodium-based (DTPANa5), and l-glutamic acid-N, N-diacetic acid (GLDA). DTPA and GLDA have shown some ability to dissolve iron sulfide without generating hydrogen sulfide. The effect of these chemical formulations, disc rotational rate and current density on the electro-assisted dissolution of pyrite are investigated using Galvanostatic experiments at room temperature. The total iron dissolved of pyrite using the electrochemical process is more than 400 times higher than the chemical dissolution using the same chelating agent-based formulation and under the same conditions. The dissolution rate increased by 12-folds with the increase of current density from 5 to 50 mA/cm2. Acid and neutral formulations had better dissolution capacities than basic ones. In addition, doubling the rotational rate did not yield a significant increase in electro-assisted pyrite scale dissolution. XPS analysis confirmed the electrochemical dissolution is mainly due to oxidation of Fe2+ on pyrite surface lattice to Fe3+. The results obtained in this study suggest that electro-assisted dissolution is a promising technique for scale removal.Musa AhmedIbnelwaleed A. HusseinAbdulmujeeb T. OnawoleMohammed A. SaadMazen KhaledNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Musa Ahmed Ibnelwaleed A. Hussein Abdulmujeeb T. Onawole Mohammed A. Saad Mazen Khaled Electrochemical removal of pyrite scale using green formulations
description	Abstract Pyrite scale formation is a critical problem in the hydrocarbon production industry; it affects the flow of hydrocarbon within the reservoir and the surface facilities. Treatments with inorganic acids, such as HCl, results in generation toxic hydrogen sulfide, high corrosion rates, and low dissolving power. In this work, the dissolution of pyrite scale is enhanced by the introduction of electrical current to aid the chemical dissolution. The electrolytes used in this study are chemical formulations mainly composed of diethylenetriamine-pentaacetic acid–potassium (DTPAK5) with potassium carbonate; diethylenetriamine pentaacetic acid sodium-based (DTPANa5), and l-glutamic acid-N, N-diacetic acid (GLDA). DTPA and GLDA have shown some ability to dissolve iron sulfide without generating hydrogen sulfide. The effect of these chemical formulations, disc rotational rate and current density on the electro-assisted dissolution of pyrite are investigated using Galvanostatic experiments at room temperature. The total iron dissolved of pyrite using the electrochemical process is more than 400 times higher than the chemical dissolution using the same chelating agent-based formulation and under the same conditions. The dissolution rate increased by 12-folds with the increase of current density from 5 to 50 mA/cm2. Acid and neutral formulations had better dissolution capacities than basic ones. In addition, doubling the rotational rate did not yield a significant increase in electro-assisted pyrite scale dissolution. XPS analysis confirmed the electrochemical dissolution is mainly due to oxidation of Fe2+ on pyrite surface lattice to Fe3+. The results obtained in this study suggest that electro-assisted dissolution is a promising technique for scale removal.
format	article
author	Musa Ahmed Ibnelwaleed A. Hussein Abdulmujeeb T. Onawole Mohammed A. Saad Mazen Khaled
author_facet	Musa Ahmed Ibnelwaleed A. Hussein Abdulmujeeb T. Onawole Mohammed A. Saad Mazen Khaled
author_sort	Musa Ahmed
title	Electrochemical removal of pyrite scale using green formulations
title_short	Electrochemical removal of pyrite scale using green formulations
title_full	Electrochemical removal of pyrite scale using green formulations
title_fullStr	Electrochemical removal of pyrite scale using green formulations
title_full_unstemmed	Electrochemical removal of pyrite scale using green formulations
title_sort	electrochemical removal of pyrite scale using green formulations
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/0cfe66e12cdc450d89221613e4f22e62
work_keys_str_mv	AT musaahmed electrochemicalremovalofpyritescaleusinggreenformulations AT ibnelwaleedahussein electrochemicalremovalofpyritescaleusinggreenformulations AT abdulmujeebtonawole electrochemicalremovalofpyritescaleusinggreenformulations AT mohammedasaad electrochemicalremovalofpyritescaleusinggreenformulations AT mazenkhaled electrochemicalremovalofpyritescaleusinggreenformulations
_version_	1718393253204590592

Electrochemical removal of pyrite scale using green formulations

Ejemplares similares