Rethinking Maritime Carbon Capture: Onshore versus Onboard Solvent Regeneration

Rethinking Maritime Carbon Capture: Onshore versus Onboard Solvent Regeneration | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Rethinking Maritime Carbon Capture: Onshore versus Onboard Solvent Regeneration Teng Zhou, Zhenrong Shi, Xiang Cao, Yongxin Hu This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7076698/v1 This work is licensed under a CC BY 4.0 License Status: Under Review Version 1 posted You are reading this latest preprint version Abstract Ship-based carbon capture (SBCC) presents a promising pathway for decarbonizing maritime transport. Current demonstration projects typically adapt land-based capture technologies, which may not be optimal for maritime applications. This study proposes a novel onshore regeneration SBCC scheme, where CO 2 -rich solvents are stored onboard and regenerated onshore, substantially reducing onboard complexity and fuel consumption. We comparatively assess this onshore scheme against conventional onboard regeneration across 16 major shipping routes, evaluating four solvents under varying SBCC load limits and projected carbon taxes (2030, 2040, and 2050). Results favor adopting practical load limits (~ 20%) rather than targeting fixed capture rates, using high-absorption-capacity solvents for onshore regeneration and low-regeneration-energy solvents for onboard regeneration. The onshore scheme is more cost-effective in most scenarios. An extended analysis of 357 global shipping routes indicates that SBCC becomes economically viable in 2040 and highly advantageous by 2050, reinforcing the significant long-term potential of the proposed onshore regeneration approach. Physical sciences/Energy science and technology/Carbon capture and storage Physical sciences/Engineering/Chemical engineering Shipping industry Carbon capture Onshore regeneration Absorption solvent Carbon tax Techno-economic analysis Full Text Additional Declarations There is NO Competing Interest. Supplementary Files NCSBCCSupplementaryInformation.docx Supplementary Information NCSBCCSupplementaryDataset.xlsx Dataset 1, Dataset 2, Dataset 3 Cite Share Download PDF Status: Under Review Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-7076698","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":493305283,"identity":"3e7ac24f-e179-4730-a779-8cd04a5ee1c3","order_by":0,"name":"Teng 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