Crevice corrosion mechanism of L80-13Cr in Cl- containing supercritical CO2 water-rich phase considering the influence of SO2

IF 4.4 3区工程技术 Q2 CHEMISTRY, PHYSICAL Journal of Supercritical Fluids Pub Date : 2025-08-01 Epub Date: 2025-03-05 DOI:10.1016/j.supflu.2025.106577

Yu Yuan , Chen Li , Yongyang Zhao , Fengyu Zhang , Yong Xiang

{"title":"Crevice corrosion mechanism of L80-13Cr in Cl- containing supercritical CO2 water-rich phase considering the influence of SO2","authors":"Yu Yuan , Chen Li , Yongyang Zhao , Fengyu Zhang , Yong Xiang","doi":"10.1016/j.supflu.2025.106577","DOIUrl":null,"url":null,"abstract":"<div><div>Given that casing materials in CO<sub>2</sub> enhanced oil recovery (EOR) and sequestration processes are exposed to corrosive environments formed by supercritical CO<sub>2</sub> and Cl<sup>–</sup>-containing water, with the crevice sensitivity yet to be fully understood, this study investigated the crevice corrosion susceptibility of L80-13Cr in Cl<sup>–</sup>-containing supercritical CO<sub>2</sub> water-rich phases using high-pressure autoclave immersion tests. The potential impact of SO<sub>2</sub> impurities in the injected carbon dioxide was also considered. The results revealed that L80-13Cr was at risk of crevice corrosion, which was further promoted by lower pH levels and the presence of SO<sub>2</sub>. The severity of corrosion within the crevice was associated with the concentration of cathodic depolarizers in the bulk solution and the stability of the passive film. These findings underscored the necessity of studying crevice corrosion susceptibility and accounting for the influence of impurities in the carbon source under CO<sub>2</sub>-EOR and sequestration conditions.</div></div>","PeriodicalId":17078,"journal":{"name":"Journal of Supercritical Fluids","volume":"222 ","pages":"Article 106577"},"PeriodicalIF":4.4000,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Supercritical Fluids","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0896844625000634","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/3/5 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Given that casing materials in CO₂ enhanced oil recovery (EOR) and sequestration processes are exposed to corrosive environments formed by supercritical CO₂ and Cl^–-containing water, with the crevice sensitivity yet to be fully understood, this study investigated the crevice corrosion susceptibility of L80-13Cr in Cl^–-containing supercritical CO₂ water-rich phases using high-pressure autoclave immersion tests. The potential impact of SO₂ impurities in the injected carbon dioxide was also considered. The results revealed that L80-13Cr was at risk of crevice corrosion, which was further promoted by lower pH levels and the presence of SO₂. The severity of corrosion within the crevice was associated with the concentration of cathodic depolarizers in the bulk solution and the stability of the passive film. These findings underscored the necessity of studying crevice corrosion susceptibility and accounting for the influence of impurities in the carbon source under CO₂-EOR and sequestration conditions.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

考虑SO2影响的L80-13Cr在含Cl超临界CO2富水相中的缝隙腐蚀机理

考虑到CO2提高采收率（EOR）和封存过程中套管材料暴露于超临界CO2和含Cl水形成的腐蚀环境中，裂缝敏感性尚未完全了解，本研究采用高压高压灭菌器浸泡试验研究了L80-13Cr在含Cl的超临界CO2富水相中的裂缝腐蚀敏感性。还考虑了注入二氧化碳中SO2杂质的潜在影响。结果表明，L80-13Cr存在缝隙腐蚀风险，较低pH和SO2的存在进一步促进了缝隙腐蚀的发生。裂缝内腐蚀的严重程度与体溶液中阴极退偏剂的浓度和钝化膜的稳定性有关。这些发现强调了在CO2-EOR和封存条件下研究裂缝腐蚀敏感性和考虑碳源中杂质影响的必要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

Journal of Supercritical Fluids 工程技术-工程：化工

CiteScore

7.60

自引率

10.30%

发文量

236

审稿时长

56 days

期刊介绍： The Journal of Supercritical Fluids is an international journal devoted to the fundamental and applied aspects of supercritical fluids and processes. Its aim is to provide a focused platform for academic and industrial researchers to report their findings and to have ready access to the advances in this rapidly growing field. Its coverage is multidisciplinary and includes both basic and applied topics. Thermodynamics and phase equilibria, reaction kinetics and rate processes, thermal and transport properties, and all topics related to processing such as separations (extraction, fractionation, purification, chromatography) nucleation and impregnation are within the scope. Accounts of specific engineering applications such as those encountered in food, fuel, natural products, minerals, pharmaceuticals and polymer industries are included. Topics related to high pressure equipment design, analytical techniques, sensors, and process control methodologies are also within the scope of the journal.