AMPP Store - Products tagged with 'iron oxide'

Available for download

51316-7302-Mechanism of High Temperature Corrosion by Model Naphthenic Acids

Product Number: 51316-7302-SG

ISBN: 7302 2016 CP

Author: Peng Jin

Publication Date: 2016

$20.00

This work demonstrates that the pretreatment of carbon steel and 9Cr alloy with model acids yields iron oxide scales with different morphology and chemical composition as determined by Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM).

Available for download

Corrosion and Corrosion Products in a Sour Environment from 80°C to 200°C

Product Number: 51317--9084-SG

ISBN: 9084 2017 CP

Author: Shujun Gao

Publication Date: 2017

$20.00

Corrosion rate of mild steel and character of corrosion products in sour environments at temperatures from 20 to 200°C. H2S-H2O water chemistry model was developed. Then, H2S corrosion tests were done at 80, 120, 160 & 200°C - exposure time of 4 days.

Available for download

Fe3O4, FeCO3 or FeS - Which Corrosion Product Will Prevail at High Temperature in CO2/H2S Environments?

Product Number: 51320-14413-SG

Author: Shujun Gao, Bruce Brown, David Young, Srdjan Nesic, Marc Singer

Publication Date: 2020

$20.00

Sweet (CO2) and sour (H2S) corrosion have continuously been a challenge in oil and gas production and transportation. Yet, some key issues are still not well understood, especially at high temperature production conditions. A CO2/H2S ratio of 500, which has been used (often inaccurately) to determine which corrosion mechanism is dominant, is probably even less valid at high temperature. The nature of the corrosion products forming at high temperature in CO2/H2S environments and their effects on the corrosion rate are not known. Finally, the impact on pipeline integrity of environmental changes between sweet and sour production conditions (simulating reservoir souring) has not been well documented. CO2, H2S, and CO2/H2S corrosion experiments were conducted at 120oC to investigate corrosion mechanisms and corrosion product layer formation at high temperature. The results show that the corrosion products were still clearly dominated by H2S under the pCO2/pH2S ratio of 550. Formation of Fe3O4, FeCO3, and FeS corrosion product layers had a direct impact on the measured corrosion rates and was dependent on the gas composition and on the sequence of exposure (CO2 then H2S and vice versa). Compared with H2S corrosion alone, the presence of CO2 could retard Fe3O4 formation in CO2/H2S mixture environment. No obvious change in steady state corrosion rate was observed when the corrosion environment was switched from CO2 to H2S and vice versa.

Available for download

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

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

$20.00

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.

Products tagged with 'iron oxide'

51316-7302-Mechanism of High Temperature Corrosion by Model Naphthenic Acids

Corrosion and Corrosion Products in a Sour Environment from 80°C to 200°C

Fe3O4, FeCO3 or FeS - Which Corrosion Product Will Prevail at High Temperature in CO2/H2S Environments?

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

Association for Materials Protection and Performance