CO2回収に用いられるグリシン酸ナトリウム水溶液中におけるステンレス鋼および炭素鋼の腐食研究
Corrosion studies of stainless steel and carbon steel in aqueous solutions of sodium glycinate used for $ \mathrm{CO_2} $ capture (原題)
(著者不明)
🤖 gxceed AI 要約
日本語
CO2回収用の有望溶媒であるグリシン酸ナトリウム（SG）水溶液について、SS-304とCS-1018の腐食速度を重量減少法で評価した。温度・濃度の上昇に伴いCS-1018の腐食が顕著になる一方、SS-304はほぼ無視できる腐食に留まった。SGはMEA、DEA、MDEAなどのアミン系溶媒よりも腐食性が低く、実機設計・運転条件の最適化に有用な基礎データを提供する。
English
Corrosion rates of SS-304 and CS-1018 were measured in aqueous sodium glycinate (SG), a promising CO2 capture solvent, using the weight-loss method across temperatures and concentrations. CS-1018 showed significant corrosion at higher temperature and concentration, while SS-304 remained largely unaffected. SG was less corrosive than MEA, DEA, and MDEA, offering practical guidance for material selection and operating conditions in CO2 capture plants.
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
日本はCCS/CCUSをGX政策の柱に位置づけており、回収プロセスの設備腐食は実装コストと稼働率に直結する。本データは国内の化学・鉄鋼メーカーが回収プラントの材料選定や運転条件を検討する際の基礎情報となる。
In the global GX context
As CCUS scales under global net-zero pathways, solvent-driven corrosion directly affects capture plant capex, opex, and reliability. This study adds open data on an amino-acid salt solvent, supporting material selection and design standards for next-generation CO2 capture infrastructure.
👥 読者別の含意
🔬研究者:アミノ酸系溶媒の腐食データが不足する中、SGの温度・濃度依存性とアミン系との比較を提供する基礎研究。
🏢実務担当者:CO2回収設備の材料選定（SS304 vs CS1018）や運転条件の最適化により、メンテナンスコストと腐食リスクを低減できる。
🏛政策担当者:CCUS実装支援策を設計する際、設備の長期信頼性・コスト低減に資する材料研究への投資根拠として参照可能。
📄 Abstract（原文）
Corrosion is a well-known and serious issue in carbon dioxide ( \mathrm{CO_2} ) absorption process, which causes huge maintenance cost for restoration of corroded equipment and pipelines. Aqueous sodium glycinate (SG) is a potential solvent for CO2 capture. Corrosion study of SG solvent is very crucial for its practical applications, as such data is very limited in an open literature. Therefore, to address this significant gap, the corrosion rates of Stainless Steel (SS-304) and Carbon Steel (CS-1018) were investigated in this study by employing weight loss method using SG solvent at three different temperatures (303.15, 313.15, and 333.15 K) and concentrations (0.10, 0.20 and 0.30 mass fraction) of industrial importance. The results revealed that SS304 showed negligible corrosion in SG solvent with marginal effect of temperature and concentration. However, significant effect of temperature and concentration was observed on corrosion rate of CS1018 in SG solvent. At highest studied temperature of 333.15 K and high concentration (0.30 mass fraction), the corrosion rate of SS304 and CS1018 in SG solvent is 3.291 mpy and 32.203 mpy respectively. Moreover, the corrosion rate of CS1018 in SG solvent was compared with methyldiethanolamine (MDEA), monoethanolamine (MEA), and diethanolamine (DEA). It was found that SG solvent showed less corrosivity than various amine solvents. The findings of this study provide the guidance for practical application for SG solvent in \mathrm{CO_2} capture process. Also, the data obtained could significantly help the design engineers to establish the appropriate operating conditions of \mathrm{CO_2} capture process to control the corrosion.
🔗 Provenance — このレコードを発見したソース
- semanticscholar http://www.doiserbia.nb.rs/ft.aspx?id=0352-51392600055Sfirst seen 2026-09-12 05:31:42 · last seen 2026-09-22 05:04:07
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