Experimental Study of Oxy-fuel Combustion and Emission Characteristics using a 10 kWth Pressurized Fluidized Bed Combustor

Experimental Study of Oxy-fuel Combustion and Emission Characteristics using a 10 kWth Pressurized Fluidized Bed Combustor | 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 Research Article Experimental Study of Oxy-fuel Combustion and Emission Characteristics using a 10 kWth Pressurized Fluidized Bed Combustor Dong Won Kim, Jong Min Lee, Gyu Hwa Lee, Kyoung Il Park This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4592932/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 25 Aug, 2024 Read the published version in Korean Journal of Chemical Engineering → Version 1 posted 5 You are reading this latest preprint version Abstract Pressurized oxy-fuel combustion (POFC) is a promising carbon capture and storage technology because of its ability for efficient CO 2 capture and storage at a relatively low cost. However, the experimental studies conducted on this technology considering pressurized conditions are limited compared with those conducted considering atmospheric conditions. Thus, further investigation on the performance and environmental emissions of oxy-fuel combustion is necessary. In this study, oxy-fuel combustion experiments were conducted using a 10 kW th fluidized bed combustion (FBC) test rig at pressures ranging from 3 to 8 bar(g). The effects of combustion pressure, oxygen concentration, and cofiring with different fuels on combustion temperature, unburned carbon, combustion efficiency, as well as SO x and NO x emissions were examined. The experimental results showed that the CO 2 concentration in the flue gas exceeds 90% in all POFC scenarios, thus facilitating the carbon capture process. Additionally, by increasing the combustion pressure, the unburned carbon and CO concentrations in the fly ash are reduced, thereby improving combustion efficiency. Furthermore, the variations in NO, NO 2 , N 2 O, and SO 2 emissions were measured to assess their environmental impact. Moreover, cofiring tests using biomass under pressurized oxy-fuel conditions (5 bar(g), 30% O 2 :70% CO 2 ) showed that POFC in a fluidized bed is environmentally friendlier and more efficient for energy production when burning a mixture of coal and biomass than other combustion methods. Pressurized Oxy-Fuel Combustion Carbon Capture and Storage (CCS) Fluidized Bed Combustion (FBC) Combustion Efficiency Environmental Emissions Full Text Cite Share Download PDF Status: Published Journal Publication published 25 Aug, 2024 Read the published version in Korean Journal of Chemical Engineering → Version 1 posted Editorial decision: Minor Revisions Needed 21 Jul, 2024 Reviewers agreed at journal 20 Jun, 2024 Reviewers invited by journal 20 Jun, 2024 Editor assigned by journal 19 Jun, 2024 First submitted to journal 17 Jun, 2024 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. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. 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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-4592932","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":317111131,"identity":"e641e3f4-ce2f-447c-bf2d-eca42d2b6530","order_by":0,"name":"Dong Won Kim","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAyElEQVRIiWNgGAWjYBACCWYgBtJyEnAhHiK1GJOgBYoTZxCtRbKdO/E2T8Wd9JntvQc/fGCwk2PgOfsArxZpZt7N1jxnnuXO5jmXLDmDIdmYgbfdAK8WOWbebdK5bYdz50nkmDHzMBxIbOBnw+8wmJZ0Ofk3RGqRhmpJkJbggWrhbcOvRbIZ6Jc/Zw4bzuzJA/rFINmYjecYfi0S589uvDmj4rC8xPGzwBCrsJPj50nDrwUJgOIDGFYEfIKhZRSMglEwCkYBFgAA/5Y5buHZ5cgAAAAASUVORK5CYII=","orcid":"https://orcid.org/0009-0006-3020-7485","institution":"KEPCO: Korea Electric Power Corp","correspondingAuthor":true,"prefix":"","firstName":"Dong","middleName":"Won","lastName":"Kim","suffix":""},{"id":317111132,"identity":"c01d8bdb-628c-476b-8339-0158f0c328c0","order_by":1,"name":"Jong Min Lee","email":"","orcid":"https://orcid.org/0000-0002-1205-4810","institution":"KEPCO: Korea Electric Power Corp","correspondingAuthor":false,"prefix":"","firstName":"Jong","middleName":"Min","lastName":"Lee","suffix":""},{"id":317111133,"identity":"6ef4d031-ef0c-42d4-aef5-0947f7722d44","order_by":2,"name":"Gyu Hwa Lee","email":"","orcid":"","institution":"KEPCO: Korea Electric Power Corp","correspondingAuthor":false,"prefix":"","firstName":"Gyu","middleName":"Hwa","lastName":"Lee","suffix":""},{"id":317111134,"identity":"5483bc30-5580-43ae-8252-62d6b6be90fd","order_by":3,"name":"Kyoung Il Park","email":"","orcid":"","institution":"KEPCO: Korea Electric Power Corp","correspondingAuthor":false,"prefix":"","firstName":"Kyoung","middleName":"Il","lastName":"Park","suffix":""}],"badges":[],"createdAt":"2024-06-17 08:54:29","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4592932/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4592932/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1007/s11814-024-00258-3","type":"published","date":"2024-08-25T15:57:57+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":63300386,"identity":"28387627-e531-4595-8838-a867a3d4d143","added_by":"auto","created_at":"2024-08-26 16:14:02","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1007864,"visible":true,"origin":"","legend":"","description":"","filename":"PaperOxyPFBC240617.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4592932/v1_covered_3a869b28-0e91-4541-bf2a-4bc63ccbce7b.pdf"}],"financialInterests":"","formattedTitle":"Experimental Study of Oxy-fuel Combustion and Emission Characteristics using a 10 kWth Pressurized Fluidized Bed Combustor","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":true,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"korean-journal-of-chemical-engineering","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"kjce","sideBox":"Learn more about [Korean Journal of Chemical Engineering](http://link.springer.com/journal/11814)","snPcode":"11814","submissionUrl":"https://www.editorialmanager.com/kjce/default2.aspx","title":"Korean Journal of Chemical Engineering","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"em","reportingPortfolio":"Springer Subscription","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"Pressurized Oxy-Fuel Combustion, Carbon Capture and Storage (CCS), Fluidized Bed Combustion (FBC), Combustion Efficiency, Environmental Emissions","lastPublishedDoi":"10.21203/rs.3.rs-4592932/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4592932/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003ePressurized oxy-fuel combustion (POFC) is a promising carbon capture and storage technology because of its ability for efficient CO\u003csub\u003e2\u003c/sub\u003e capture and storage at a relatively low cost. However, the experimental studies conducted on this technology considering pressurized conditions are limited compared with those conducted considering atmospheric conditions. Thus, further investigation on the performance and environmental emissions of oxy-fuel combustion is necessary. In this study, oxy-fuel combustion experiments were conducted using a 10 kW\u003csub\u003eth\u003c/sub\u003e fluidized bed combustion (FBC) test rig at pressures ranging from 3 to 8 bar(g). The effects of combustion pressure, oxygen concentration, and cofiring with different fuels on combustion temperature, unburned carbon, combustion efficiency, as well as SO\u003csub\u003ex\u003c/sub\u003e and NO\u003csub\u003ex\u003c/sub\u003e emissions were examined. The experimental results showed that the CO\u003csub\u003e2\u003c/sub\u003e concentration in the flue gas exceeds 90% in all POFC scenarios, thus facilitating the carbon capture process. 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