Menu
Search
Filters
Close
Menu

Save 20% on select titles with code HIDDEN24 - Shop The Sale Now

Impact of Fe3O4 on the Performance of an Imidazolinium-Based Inhibitor for Mitigation of CO2 Corrosion of Carbon Steel

Picture for Impact of Fe3O4 on the Performance of an Imidazolinium-Based Inhibitor for Mitigation of CO2 Corrosion of Carbon Steel
Available for download

Among the techniques disseminated in the industry to protect carbon steel pipelines against internal corrosion, the use of corrosion inhibitors (CIs) is one of the most common. Organic compounds containing nitrogen are commonly employed in the petroleum industry to decrease corrosion rates. The high inhibition efficiency can be attributed to adsorption capacity on the metallic surface, creating a protective film that interferes with the electrochemical reactions involved in the corrosion processes.

Product Number: 51323-19072-SG
Author: Maria Serenario, Bernardo Santos, Xi Wang, David Young, Marc Singer, Maalek Mohamed-Said, Alysson Helton Santos Bueno
Publication Date: 2023
$0.00
$20.00
$20.00

Use of corrosion inhibitors to mitigate pipeline corrosion is common in the oil and gas industry. Despite this, few studies focus on how the presence of corrosion products affect their performance. This work aimed to understand the impact of Fe3O4 on the performance of a commercial primarily imidazolinium-based corrosion inhibitor formulation. A magnetite layer was formed in an autoclave at a high temperature (1 wt.% NaCl, N2 sparged, pH 4, 120°C). The performance of the corrosion inhibitor was investigated with and without the presence of Fe3O4 (5 wt.% NaCl, CO2, pH 4.5, 55°C). Linear polarization resistance (LPR) and potentiodynamic polarization were employed to study the effect of Fe3O4 on corrosion rate (CR) and inhibition efficiency (IE). Scanning electron microscopy (SEM) and Raman spectroscopy were used to characterize specimen surfaces. The acquired data showed that the presence of magnetite limited inhibitor performance. Dissolution of the magnetite layer over time in the CO2 environment was also observed. This behavior was expected as the experiments were performed in non-thermodynamically favorable conditions for magnetite formation. Polarization sweeps indicated that the cathodic charge transfer and the limiting current of the H+ reduction reaction were significantly accelerated due to the Fe3O4 layer. This behavior can be explained by the increase in cathodic reaction area due to the conductive nature of magnetite.

Use of corrosion inhibitors to mitigate pipeline corrosion is common in the oil and gas industry. Despite this, few studies focus on how the presence of corrosion products affect their performance. This work aimed to understand the impact of Fe3O4 on the performance of a commercial primarily imidazolinium-based corrosion inhibitor formulation. A magnetite layer was formed in an autoclave at a high temperature (1 wt.% NaCl, N2 sparged, pH 4, 120°C). The performance of the corrosion inhibitor was investigated with and without the presence of Fe3O4 (5 wt.% NaCl, CO2, pH 4.5, 55°C). Linear polarization resistance (LPR) and potentiodynamic polarization were employed to study the effect of Fe3O4 on corrosion rate (CR) and inhibition efficiency (IE). Scanning electron microscopy (SEM) and Raman spectroscopy were used to characterize specimen surfaces. The acquired data showed that the presence of magnetite limited inhibitor performance. Dissolution of the magnetite layer over time in the CO2 environment was also observed. This behavior was expected as the experiments were performed in non-thermodynamically favorable conditions for magnetite formation. Polarization sweeps indicated that the cathodic charge transfer and the limiting current of the H+ reduction reaction were significantly accelerated due to the Fe3O4 layer. This behavior can be explained by the increase in cathodic reaction area due to the conductive nature of magnetite.

Product tags
Also Purchased
Picture for AISI 420/410 Modified Martensitic Stainless Steel bar Stock Materials Sulphide Stress Cracking (SSC) Resistance in Mildly Sour Environments
Available for download

AISI 420/410 Modified Martensitic Stainless Steel bar Stock Materials Sulphide Stress Cracking (SSC) Resistance in Mildly Sour Environments

Product Number: 51323-18759-SG
Author: Roberto Morana, Lee Smith, Perry Nice, Lucrezia Scoppio, Marc Müller, Karola Klenke, Roberta Prencipe, Luciana Intiso
Publication Date: 2023
$20.00

Martensitic Stainless Steel (SMSS) is widely used for downhole production tubing and liners in the Oil & Gas industry. Optimization of the tubular material chemistry, cleanliness and manufacturing route has delivered useful performance in H2S-containing environments (specifically SSC and stress corrosion cracking [SCC])3 resistance4,5,6. Some tubular accessories and most completion equipment require sizes not readily delivered by tubular product form. In these instances, bar stock material is a pragmatic choice.
Picture for Development of a Gas-Phase Corrosion Inhibitor for Wet-Gas Carbon Dioxide Corrosion at 200°C
Available for download

Development of a Gas-Phase Corrosion Inhibitor for Wet-Gas Carbon Dioxide Corrosion at 200°C

Product Number: 51323-18829-SG
Author: Wei Zhang, Jason Moses, William Cardwell, Samar Agha Keshmiri, Khoa Ky, David Orta, Alyn Jenkins
Publication Date: 2023
$20.00

Although organic corrosion inhibitors have been widely applied in the energy industry, many details regarding their protection mechanism remain unknown. For example, a corrosion inhibitor adsorbs on the clean steel/aqueous solution interface, driven by electrostatic interaction. With the corrosion product
layer formed, how would the inhibitor adsorption interact with the corrosion product nucleation and precipitation? What is the effect of pre-corrosion in inhibitor testing?
Picture for Corrosion Management Review of Sour Gas Pipeline – A Case Study
Available for download

Corrosion Management Review of Sour Gas Pipeline – A Case Study

Product Number: 51323-18855-SG
Author: Muntathir M. Al-Jumaah, Faisal M. Al-Mutahhar, Muhammad A. Sherwani
Publication Date: 2023
$20.00

This paper reviews the corrosion management for a critical sour gas pipeline operated by Saudi Aramco. The 38-inch diameter pipeline transports untreated sour gas from Crude Processing Facility (CPF) to downstream Gas Plant and spans a total distance of 145 km. To prevent internal corrosion inside the pipeline, the wet sour gas is dehydrated using Tri-Ethylene Glycol (TEG) unit.
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support