船舶搭載型エレクトロスイング吸着式炭素回収の信頼性解析
Reliability Analysis of Electro-Swing Adsorption Carbon Capture Onboard Ships (原題)
Lena Daum, Karsten Müller
🤖 gxceed AI 要約
日本語
本研究は、船舶排ガス処理系に統合したエレクトロスイング吸着（ESA）式CO2回収ユニットのシステム信頼性を評価した。FMEAでヒーター・圧縮機・真空ポンプを重要部品と特定し、FTAでシステム故障率0.00066 h⁻¹・稼働率99.3%を算出。排ガス不純物に起因するプロセス故障が支配的で、上流前処理と約120°Cの安定熱運転が信頼性確保に重要と示した。
English
This study assesses the system-level reliability of an electro-swing adsorption (ESA) carbon capture unit integrated into a container vessel's exhaust treatment. FMEA identifies heaters, compressors, and vacuum pumps as critical components, while FTA yields a failure rate of 0.00066 h⁻¹ and 99.3% availability. Process-related failures driven by exhaust impurities dominate, highlighting the need for upstream pre-treatment and stable thermal operation near 120°C.
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
海運の脱炭素はIMO規制と連動し、日本は造船・海運大国としてOCC技術の実装が国際競争力に直結する。本知見は国内造船・舶用機器メーカーの設計信頼性向上に資する。
In the global GX context
Onboard carbon capture is emerging under IMO decarbonization rules as a near-term retrofit option for existing fleets. This reliability assessment offers design guidance for electrochemical capture systems, complementing established amine-based OCC research and informing maritime transition finance and disclosure of abatement technologies.
👥 読者別の含意
🔬研究者:電気化学的CO2回収の信頼性工学的知見を提供し、OCCシステム設計研究の基礎となる。
🏢実務担当者:船舶へのOCC導入検討時、重要部品の冗長化と排ガス前処理の設計判断に活用できる。
🏛政策担当者:IMO排出規制下でのOCC技術認証・安全基準策定の参考資料となる。
📄 Abstract（原文）
The maritime sector accounts for approximately three percent of global greenhouse gas emissions, a share expected to increase in the coming decades. To comply with increasingly stringent emission regulations, onboard carbon capture (OCC) technologies are being investigated as a short- to medium-term mitigation option for existing ship fleets. Among these, electro-swing adsorption (ESA) represents a novel post-combustion carbon capture technology that enables reversible CO 2 adsorption and desorption through electrochemical potential changes. This study presents a system-level reliability assessment of an ESA-based carbon capture unit integrated into the exhaust treatment system of a container vessel. Two complementary reliability methods are applied: a bottom-up Failure Mode and Effects Analysis (FMEA), to identify critical component failures, and a top-down Fault Tree Analysis (FTA), to quantify failure propagation leading to system shutdown. The FMEA identifies the heater, compressors, and vacuum pumps as the most critical components due to their high failure impact and limited redundancy. The quantitative FTA yields an overall system failure rate of 0.00066 h -1 and a point availability of 99.3 %. The dominant failure pathway is associated with ” process-related failures ”, primarily driven by impurities in the exhaust gas stream. These findings highlight the importance of effective upstream exhaust-gas pre-treatment and stable thermal operation at approximately 120 °C to ensure reliable ESA performance. Overall, ESA-based OCC systems may achieve reliability levels within a similar order of magnitude as established amine-based technologies, although direct comparisons are subject to significant methodological differences. The study provides design guidance to improve robustness and operational availability of electrochemical carbon capture systems in maritime applications.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.ijggc.2026.104793first seen 2026-09-27 04:42:17
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