Development of new technology for coal gasification purification and research on the formation mechanism of pollutants

Development of new technology for coal gasification purification and research on the formation mechanism of pollutants | 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 Development of new technology for coal gasification purification and research on the formation mechanism of pollutants Shu Zheng, Yixiang Shi, Zhiqi Wang, Pengjie Wang, Gang Liu, Huaichun Zhou This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-36229/v3 This work is licensed under a CC BY 4.0 License Status: Under Review Version 3 posted 8 You are reading this latest preprint version Show more versions Abstract Coal-fired power generation is the main source of CO 2 emission in China. To solve the problems of declined efficiency and increased costs caused by CO 2 capture in coal-fired power systems, an integrated gasification fuel cell (IGFC) power generation technology was developed. The interaction mechanisms among coal gasification and purification, fuel cell and other components are further studied for IGFCs. Towards the direction of coal gasification and purification, we studied gasification reaction characteristics of ultrafine coal particles, ash melting characteristics and their effects on coal gasification reactions, the formation mechanism of pollutants. We further develop an elevated temperature/pressure swing adsorption rig for simultaneous H 2 S and CO 2 removals. The results show the validity of the Miura-Maki model to describe the gasification of Shenhua bituminous coal with a good fit between the predicted DTG curves and experimental data. The designed 8-6-1 cycle procedure can effectively remove CO 2 and H 2 S simultaneously with removal rate over 99.9%. In addition, transition metal oxides used as mercury removal adsorbents in coal gasified syngas were shown with great potential. The techniques presented in this paper can improve the gasification efficiency and reduce the formation of pollutants in IGFCs. Economic Geology IGFC coal gasification H2S-CO2 removal syngas mercury removal Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 12 Figure 13 Full Text Cite Share Download PDF Status: Under Review Version 3 posted Review # 2 received at journal 07 Feb, 2021 Reviewer # 2 agreed at journal 06 Feb, 2021 Review # 1 received at journal 06 Feb, 2021 Reviewer # 1 agreed at journal 04 Feb, 2021 Reviewers invited by journal 02 Feb, 2021 Editor assigned by journal 01 Feb, 2021 Submission checks completed at journal 01 Feb, 2021 Editor invited by journal 01 Feb, 2021 You are reading this latest preprint version Show more versions 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. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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-36229","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research","associatedPublications":[],"authors":[{"id":10151661,"identity":"05bf38da-cfaf-41da-86ad-a0c03882d66c","order_by":0,"name":"Shu Zheng","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA70lEQVRIiWNgGAWjYDACCQYGZhDNDxc5QKwWyQaStRjAVRLSIj+7x/hzQcUdu823mx8+LmxjkOO7kcD4uQCPFoM7ZwyMZ5x5lrztzjFj45ltDMaSNxKYpWfg0yKRY5DM23Y42exGDps0bxtD4oYbCWzMPPgcNiPH4DDvv8PJxjNy2H8DtdQT1MJwI8ewmbfhsB3QOjZmoJYEA0JaDG6kFTPzHDucIHEjzVh6xjkJw5lnHjZL43dY8ubPPDWH7flnJD/8XFBmI893PPngZ7wOg4LEBgZwBAGjiYGxgQgNDAz2DAzQOB0Fo2AUjIJRgA4ACZVKNQ6B7vYAAAAASUVORK5CYII=","orcid":"","institution":"North China Electric Power University","correspondingAuthor":true,"prefix":"","firstName":"Shu","middleName":"","lastName":"Zheng","suffix":""},{"id":10151662,"identity":"e1470fb3-702b-489c-ad88-3e99d8b4786b","order_by":1,"name":"Yixiang Shi","email":"","orcid":"","institution":"Tsinghua University","correspondingAuthor":false,"prefix":"","firstName":"Yixiang","middleName":"","lastName":"Shi","suffix":""},{"id":10151663,"identity":"871c7f23-d7bb-42db-951d-39e9d0f39cf6","order_by":2,"name":"Zhiqi Wang","email":"","orcid":"","institution":"Chinese Academy of Sciences","correspondingAuthor":false,"prefix":"","firstName":"Zhiqi","middleName":"","lastName":"Wang","suffix":""},{"id":10151664,"identity":"308eda32-4fff-4dd0-a468-f1bea33cd34a","order_by":3,"name":"Pengjie Wang","email":"","orcid":"","institution":"China Huaneng Group Clean Energy Research Institute","correspondingAuthor":false,"prefix":"","firstName":"Pengjie","middleName":"","lastName":"Wang","suffix":""},{"id":10151665,"identity":"cb818c1d-7b34-4551-9e44-66ac3d135535","order_by":4,"name":"Gang Liu","email":"","orcid":"","institution":"China Huaneng Group Clean Energy Research Institute","correspondingAuthor":false,"prefix":"","firstName":"Gang","middleName":"","lastName":"Liu","suffix":""},{"id":10151666,"identity":"238a9571-142c-43d7-bb04-34396be7c6ad","order_by":5,"name":"Huaichun Zhou","email":"","orcid":"","institution":"Northeast Electric Power University","correspondingAuthor":false,"prefix":"","firstName":"Huaichun","middleName":"","lastName":"Zhou","suffix":""}],"badges":[],"createdAt":"2020-06-16 21:45:53","currentVersionCode":3,"declarations":"","doi":"10.21203/rs.3.rs-36229/v3","doiUrl":"https://doi.org/10.21203/rs.3.rs-36229/v3","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":5662987,"identity":"fb7739e8-47be-488a-a1b6-8a5eaae7b35e","added_by":"auto","created_at":"2021-02-05 14:54:05","extension":"jpg","order_by":1,"title":"Figure 1","display":"","copyAsset":false,"role":"figure","size":26790,"visible":true,"origin":"","legend":"Outlook photo of the ETPSA device","description":"","filename":"1.jpg","url":"https://assets-eu.researchsquare.com/files/rs-36229/v3/b6a4b5cdba3e1c5ab734e32a.jpg"},{"id":5662949,"identity":"85d7d2e8-1fe6-4ed3-a7ad-9f3b68233dc7","added_by":"auto","created_at":"2021-02-05 14:51:05","extension":"jpg","order_by":2,"title":"Figure 2","display":"","copyAsset":false,"role":"figure","size":99780,"visible":true,"origin":"","legend":"8-6-1 ETPSA cycle procedures. AD: adsorption; RH: high pressure steam rinse; PE: pressure equalization with columns (1, 2) or tanks (A, B, C, D); BD: counter-current blow down; PG: N2 purge; V: vacuum desorption; PP: pressurization with product gas.","description":"","filename":"2.jpg","url":"https://assets-eu.researchsquare.com/files/rs-36229/v3/ee88be40eda80ed6fcdf693a.jpg"},{"id":5662986,"identity":"d08dd863-1d6e-4670-9c9d-62dc4a74f2f8","added_by":"auto","created_at":"2021-02-05 14:54:05","extension":"jpg","order_by":3,"title":"Figure 3","display":"","copyAsset":false,"role":"figure","size":44044,"visible":true,"origin":"","legend":"Schematic diagram of simulated syngas mercury removal system","description":"","filename":"3.jpg","url":"https://assets-eu.researchsquare.com/files/rs-36229/v3/55fd15d34d02d59f53b05f0c.jpg"},{"id":5662538,"identity":"a78dd624-496a-48a8-93af-4639e732eb5e","added_by":"auto","created_at":"2021-02-05 14:45:05","extension":"jpg","order_by":4,"title":"Figure 4","display":"","copyAsset":false,"role":"figure","size":42463,"visible":true,"origin":"","legend":"Test bench of syngas mercury removal system","description":"","filename":"4.jpg","url":"https://assets-eu.researchsquare.com/files/rs-36229/v3/55894c16f2730eb5dd391eb2.jpg"},{"id":5662945,"identity":"2771adff-5ca4-41cf-a176-ee03bd25714d","added_by":"auto","created_at":"2021-02-05 14:51:05","extension":"jpg","order_by":5,"title":"Figure 5","display":"","copyAsset":false,"role":"figure","size":81063,"visible":true,"origin":"","legend":"Experimental results of five coal samples with different particle sizes: (a) particle size distribution curves, (b) micro surface morphology, (c) gasification conversion factor curves and (d) the plots of ln(β/T2) vs 1/T at a particular conversion 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Technology","twitterHandle":"","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"em","reportingPortfolio":"BMC/SO AJ","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"IGFC, coal gasification, H2S-CO2 removal, syngas mercury removal","lastPublishedDoi":"10.21203/rs.3.rs-36229/v3","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-36229/v3","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eCoal-fired power generation is the main source of CO\u003csub\u003e2\u003c/sub\u003e emission in China. To solve the problems of declined efficiency and increased costs caused by CO\u003csub\u003e2\u003c/sub\u003e capture in coal-fired power systems, an integrated gasification fuel cell (IGFC) power generation technology was developed. The interaction mechanisms among coal gasification and purification, fuel cell and other components are further studied for IGFCs. Towards the direction of coal gasification and purification, we studied gasification reaction characteristics of ultrafine coal particles, ash melting characteristics and their effects on coal gasification reactions, the formation mechanism of pollutants. We further develop an elevated temperature/pressure swing adsorption rig for simultaneous H\u003csub\u003e2\u003c/sub\u003eS and CO\u003csub\u003e2\u003c/sub\u003e removals. The results show the validity of the Miura-Maki model to describe the gasification of Shenhua bituminous coal with a good fit between the predicted DTG curves and experimental data. The designed 8-6-1 cycle procedure can effectively remove CO\u003csub\u003e2\u003c/sub\u003e and H\u003csub\u003e2\u003c/sub\u003eS simultaneously with removal rate over 99.9%. In addition, transition metal oxides used as mercury removal adsorbents in coal gasified syngas were shown with great potential. The techniques presented in this paper can improve the gasification efficiency and reduce the formation of pollutants in IGFCs.\u003c/p\u003e","manuscriptTitle":"Development of new technology for coal gasification purification and research on the formation mechanism of pollutants","msid":"","msnumber":"","nonDraftVersions":[{"code":3,"date":"2021-02-05 14:45:03","doi":"10.21203/rs.3.rs-36229/v3","editorialEvents":[{"type":"communityComments","content":0},{"type":"editorInvitedReview","content":"","date":"2021-02-08T00:00:00+00:00","index":2,"fulltext":"Recommendation: Reviewer's comments unavailable due to the journal's policy.\n"},{"type":"reviewerAgreed","content":"","date":"2021-02-07T00:00:00+00:00","index":2,"fulltext":""},{"type":"editorInvitedReview","content":"","date":"2021-02-07T00:00:00+00:00","index":1,"fulltext":"Recommendation: Reviewer's comments unavailable due to the journal's 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