Coupling effect of H2S and SO2 on the corrosion behavior of X65 pipeline steel in high-pressure CO2 transport environments

IF 7.4 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Science Pub Date : 2025-07-05 DOI:10.1016/j.corsci.2025.113163

Weijian Yang , Xiaofei Qin , Runze Zhang , Jianbo Sun , Chong Sun , Xuexu Xu , Xueqiang Lin

引用次数: 0

Abstract

In this work, the coupling effect of H₂S and SO₂ on the corrosion mechanism of X65 steel under gaseous and supercritical CO₂ phase states was clarified. The impurities in supercritical CO₂ make the corrosion of steel more serious. At the same conditions, SO₂ causes more corrosion than H₂S by promoting greater H⁺ formation in the aqueous phase, which enhances the hydrogen evolution reaction. Noteworthy, under the coupling effects of H₂S and SO₂, their reaction products alter the corrosion film of steel. Especially, the formation of H₂SO₄ intensifies the hydrogen evolution reaction, causing more severe corrosion than with a single impurity.

查看原文本刊更多论文

H2S和SO2对X65管线钢在高压CO2输送环境中腐蚀行为的耦合影响

本文阐明了H2S和SO2在气态和超临界CO2相下对X65钢腐蚀机理的耦合作用。超临界CO2中的杂质使钢的腐蚀更加严重。在相同条件下，SO2比H2S的腐蚀作用更大，因为它促进了水相中H+的生成，从而增强了析氢反应。值得注意的是，在H2S和SO2的耦合作用下，它们的反应产物改变了钢的腐蚀膜。特别是H2SO4的形成加剧了析氢反应，造成比单一杂质更严重的腐蚀。

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分钟内获得全文求助全文

来源期刊

Corrosion Science 工程技术-材料科学：综合

CiteScore

13.60

自引率

18.10%

发文量

763

审稿时长

46 days

期刊介绍： Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies. This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.