Corrosion Inhibition of S275 Carbon Steel in CO <sub>2</sub> Capture Systems Using Monoethanolamine (MEA) Solvent
モノエタノールアミン(MEA)溶媒を用いたCO2回収システムにおけるS275炭素鋼の腐食抑制 (AI 翻訳)
Eleni Lamprou, Fani Stergioudi, G. Skordaris, Nikolaos Michailidis, Evie Nessi, Αθανάσιος Ι. Παπαδόπουλος, Panagiotis Seferlis
🤖 gxceed AI 要約
日本語
本研究は、CO2回収ユニットにおけるS275炭素鋼の腐食抑制剤を評価。NaVO3とCuSO4が高効率（最大98%）を示し、コスト低減に有望。
English
This study evaluates corrosion inhibitors for S275 carbon steel in MEA-based CO2 capture systems. NaVO3 and CuSO4 achieve up to 98% inhibition efficiency, offering a cost-effective alternative to stainless steel.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本でもCCUSはGX実現に向けた重要技術であり、材料コスト低減は実用化に不可欠。本研究はSSBJ対象外だが、国内CCS/CCUSプロジェクトへの適用可能性を示唆。
In the global GX context
Globally, CCUS is critical for decarbonization. This paper provides empirical data on corrosion mitigation, reducing capital costs for capture infrastructure, which aligns with IEA and IPCC pathways.
👥 読者別の含意
🔬研究者:Materials scientists and corrosion engineers can leverage the inhibition mechanisms and performance data for further optimization.
🏢実務担当者:CCUS project developers can consider S275 steel with inhibitors to lower equipment costs while maintaining integrity.
📄 Abstract（原文）
ABSTRACT Corrosion in CO 2 capture units significantly impacts safety and costs. This study evaluates S275 carbon steel in CO 2 ‐loaded monoethanolamine (MEA) as a cost‐effective alternative to 316 L stainless steel, testing various inhibitors: methionine, imidazole, sodium sulfite, sodium metavanadate (NaVO 3 ), and copper(II) sulfate (CuSO 4 ). Corrosion performance is assessed using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS), while SEM and confocal microscopy analyze surface mechanisms. Results show that NaVO 3 and CuSO 4 provide the highest protection, reaching inhibition efficiencies of 94% (750 ppm) and 98% (1000 ppm), respectively. Polarization curves indicate that both inhibitors act as anodic inhibitors by forming protective layers. SEM confirm iron‐based oxides in NaVO 3 ‐treated samples and mixed copper–iron oxides in CuSO 4 ‐treated ones. Overall, S275 steel shows high potential for CO 2 capture systems when paired with effective inhibitors.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1002/maco.70196first seen 2026-07-02 05:37:41
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