Menu
Search
Filters
Close
Menu

Electrochemical And Morphological Investigation Of Corrosion Behavior Of Carbon Steel In A Supercritical CO2 Environment With Presence Of H2S.

Electrochemical and Morphological Investigation of Corrosion Behavior of C1018 in a Subcritical and Supercritical CO2 Environment with Presence of H2S
Available for download

Supercritical CO2 storage has been gaining more attention due to its wider application. It is one of the desirable solutions for reducing CO2 emission, which is an important contributor to the global climate crisis. In other cases, some of the early applications were focused on the oil and gas industry, by using supercritical CO2 to sequence the mature wells for better production [1],[2]. In those environments, C1018 carbon steel was extensively used, due to its good balance of toughness, strength, and ductility as well as its excellent weldability. 

Product Number: 51322-18005-SG
Author: Yuan Ding, Chin-Hua “Jim” Cheng, Raymundo Case
Publication Date: 2022
Industries: Corrosion Monitoring and Control , Coatings
$0.00
$20.00
$20.00

The corrosion behavior of a C1018 carbon steel in supercritical CO2 environment with different amount of H2S (5 ppm-200 ppm) was investigated in both ex-situ morphological analysis and insitu electrochemical methods. The corrosion rates were measured using both linear polarization resistance (LPR), weight loss method and electrochemical impedance spectroscopy (EIS), at temperatures from 60°C up to 120°C with an interval of 20oC, the experiments were performed at 400 psi (sub-critical) and 1600 psi (supercritical) of CO2 partial pressure. The corroded surfaces and the corrosion products were analyzed using various techniques, including scanning electron microscopy (SEM), Energy dispersive spectroscopy (EDS), and X-ray Diffraction (XRD). The results show that the slight presence of H2S in a supercritical CO2 environment plays an insignificant role in terms of the observed corrosion rates. The types and the thickness of corrosion products changed as temperature increased. Under the effect of time, the corrosion rates decreased with exposure time gradually due to the formation of corrosion products. 

The corrosion behavior of a C1018 carbon steel in supercritical CO2 environment with different amount of H2S (5 ppm-200 ppm) was investigated in both ex-situ morphological analysis and insitu electrochemical methods. The corrosion rates were measured using both linear polarization resistance (LPR), weight loss method and electrochemical impedance spectroscopy (EIS), at temperatures from 60°C up to 120°C with an interval of 20oC, the experiments were performed at 400 psi (sub-critical) and 1600 psi (supercritical) of CO2 partial pressure. The corroded surfaces and the corrosion products were analyzed using various techniques, including scanning electron microscopy (SEM), Energy dispersive spectroscopy (EDS), and X-ray Diffraction (XRD). The results show that the slight presence of H2S in a supercritical CO2 environment plays an insignificant role in terms of the observed corrosion rates. The types and the thickness of corrosion products changed as temperature increased. Under the effect of time, the corrosion rates decreased with exposure time gradually due to the formation of corrosion products. 

Product tags
Also Purchased
Picture for Electrochemical Behavior Of Transmission Pipeline Steels In Supercritical Carbon Dioxide
Available for download

Electrochemical Behavior Of Transmission Pipeline Steels In Supercritical Carbon Dioxide

Product Number: 51322-17592-SG
Author: Zineb Belarbi, Lucas Teeter, Richard E. Chinn, Margaret Ziomek- Moroz, Ömer N. Doğan
Publication Date: 2022
$20.00

High-pressure steel pipeline is a common, cost-effective method for transporting CO2 from its point of capture to storage sites1. In pipeline transport systems, CO2 is mostly transported in its liquid or supercritical phase, depending on the operating pressure2,3, which requires compression of CO2 gas to a pressure above 80 bar (Figure 1) and avoid a two-phase flow regime in the steel pipelines. In the USA, the longest CO2 pipelines, which transport more than 40 MtCO2 per year from production point to sites in Texas, where the CO2 is used for enhanced oil recovery (EOR), operate in the “dense phase” mode and at ambient temperature and high pressure.
Enabling Carbon Steel with a Special dense CO2 Corrosion Inhibitor – A Field Study
Available for download

Enabling Carbon Steel With A Special scCO2 Corrosion Inhibitor – A Field Study

Product Number: 51322-18205-SG
Author: Tracey Jackson, Peng Jin, Jamie Wood, Johnathon Brooks
Publication Date: 2022
$20.00

 In recent years the oil and gas industry has made significant commitments to carbon reduction.1  Aligned with the goal of decreasing carbon emissions the authors have developed a corrosion inhibitor (CI-1) that is intended to protect scCO2 systems that are wet or water contaminated (1000 ppm).2  The development and composition of this corrosion inhibitor (CI) for dry scCO2 is reported elsewhere.2,3  While chemical companies have been treating high water cut, production enhanced, CO2 floods (i.e. enhanced oil recovery [EOR]) for several decades there were no inhibitors designed specifically for CO2 disposal systems or wet scCO2 systems producing CO2 for sale.4   
Picture for Efficacy Of MIL-DTL-5541 Compliant Non-Chromate Conversion Coating Repair Materials
Available for download

Efficacy Of MIL-DTL-5541 Compliant Non-Chromate Conversion Coating Repair Materials

Product Number: 51322-17625-SG
Author: David G. Enos, Derek Wichhart
Publication Date: 2022
$20.00

Chromate conversion coatings are relied upon to ensure the long-term corrosion performance and surface electrical properties of aluminum alloys, as well as to improve the bond strength and adhesive properties of organic coatings and adhesives. Chromate based chemistries have been all but eliminated in Europe, and it is believed the Environmental Protection Agency (EPA) will stage their elimination in the USA within the next 5 to 10 years. The development of chemistries to replace chromate has been a hot area of research for over 30 years, and now a series of commercial alternatives have become available. These new coatings differ in their chemistry and performance characteristics, as well as their functional limitations, from chromate.
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