Effect of Four Types of Imidazolium-based Ionic Liquids on Oxidation Parameters and Gas products of Lignite

Effect of Four Types of Imidazolium-based Ionic Liquids on Oxidation Parameters and Gas products of Lignite | 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 Effect of Four Types of Imidazolium-based Ionic Liquids on Oxidation Parameters and Gas products of Lignite Zujin J. Bai, Shuyao Ren, Jun Deng, Furu Kang, Haoqiang Han This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-8036165/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract To explore the effect of imidazolium-based ionic liquids (ILs) on the oxidation characteristics and gas products of lignite during oxidation. The spectral positions of the CO, CO 2 , and H 2 O gases were determined, and the peaks were discussed and compared. The kinetic parameters were calculated and the kinetic response mechanism was determined. The results show that ILs can increase the physical adsorption capacity of the coal sample during the low temperature oxidation, and can effectively inhibit the reaction in the stage of water evaporation and desorption weight loss. It hardly inhibiting oxidation and could also aggravate the reaction process during the combustion. The critical temperature, ignition temperature ( T 6 ), maximum weight loss rate increased by 8.9°C, 11.5°C, 25.7°C, dry cracking temperature, active temperature decreased by 18.0°C, 5.6°C, respectively. The temperature difference gradually decreases, which between the ILs treated coal and the raw coal before the T 6 . The onset temperature and the end temperature of CO 2 and CO from the treated samples were increased at 2192–2180 cm –1 and 2123–2103 cm –1 . The apparent activation energy increases and the oxidation model changes during the evaporation and thermal decomposition. Ionic liquid lignite oxidation characteristics gas products kinetic mechanism Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted 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. 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-8036165","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":582133804,"identity":"af255b91-46a4-449e-bce0-5a506741d62a","order_by":0,"name":"Zujin J. Bai","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA9UlEQVRIie2Rv4rCQBCHd1mIzaLtLAveK0QE/3B5mAmBvfZKO/cIWPkAii/hG1xkQZuAbSyD7RVCmlxzuAHBbpPywP2qH8N88BuGEI/nHxISqgksYDjo6cco66Tk0Vism1XspFjoSsX7Ajsq055Jb7PAUH35mYjfmgz7BdLq06HM17EOgRtGd0pJjmQsCmRy4yqWxRoBTMBkcpS2WNMwYNylnEudQWh4IA4rUSNZtitF/KUBFXBgR7DFMGxT5psyJZBF9h6VvHMFo21eptKlTAcf10r8wfL7lI8udRS99U/JoXIpDQyeuYn2uW3QW+uKx+PxvDR3sCdLEJLpARsAAAAASUVORK5CYII=","orcid":"","institution":"Xi’an University of Science and Technology","correspondingAuthor":true,"prefix":"","firstName":"Zujin","middleName":"J.","lastName":"Bai","suffix":""},{"id":582133805,"identity":"769a9242-d83d-4566-bf0f-87afd2fceb4b","order_by":1,"name":"Shuyao Ren","email":"","orcid":"","institution":"Xi’an University of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Shuyao","middleName":"","lastName":"Ren","suffix":""},{"id":582133806,"identity":"6b102664-bab3-46e5-8d96-ed862abc3b7e","order_by":2,"name":"Jun Deng","email":"","orcid":"","institution":"Xi’an University of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Jun","middleName":"","lastName":"Deng","suffix":""},{"id":582133807,"identity":"14b99b58-7e7a-4440-a2ee-053f45f7a651","order_by":3,"name":"Furu Kang","email":"","orcid":"","institution":"Xi’an University of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Furu","middleName":"","lastName":"Kang","suffix":""},{"id":582133808,"identity":"9aa0ad8e-819b-4d98-9bb5-f29e9d9c993f","order_by":4,"name":"Haoqiang Han","email":"","orcid":"","institution":"Xi’an University of Science and Technology","correspondingAuthor":false,"prefix":"","firstName":"Haoqiang","middleName":"","lastName":"Han","suffix":""}],"badges":[],"createdAt":"2025-11-05 08:38:39","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-8036165/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-8036165/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":101752490,"identity":"47508b91-9853-4631-8ec9-5c9c9d20f0be","added_by":"auto","created_at":"2026-02-03 10:27:46","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1727405,"visible":true,"origin":"","legend":"","description":"","filename":"manuscript0804.pdf","url":"https://assets-eu.researchsquare.com/files/rs-8036165/v1_covered_d7c53918-b3df-4f30-b0f9-97ca9ef09828.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"Effect of Four Types of Imidazolium-based Ionic Liquids on Oxidation Parameters and Gas products of Lignite","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":true,"highlight":"","institution":"","isAcceptedByJournal":false,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true},"keywords":"Ionic liquid, lignite, oxidation characteristics, gas products, kinetic mechanism","lastPublishedDoi":"10.21203/rs.3.rs-8036165/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-8036165/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eTo explore the effect of imidazolium-based ionic liquids (ILs) on the oxidation characteristics and gas products of lignite during oxidation. The spectral positions of the CO, CO\u003csub\u003e2\u003c/sub\u003e, and H\u003csub\u003e2\u003c/sub\u003eO gases were determined, and the peaks were discussed and compared. The kinetic parameters were calculated and the kinetic response mechanism was determined. The results show that ILs can increase the physical adsorption capacity of the coal sample during the low temperature oxidation, and can effectively inhibit the reaction in the stage of water evaporation and desorption weight loss. It hardly inhibiting oxidation and could also aggravate the reaction process during the combustion. The critical temperature, ignition temperature (\u003cem\u003eT\u003c/em\u003e\u003csub\u003e6\u003c/sub\u003e), maximum weight loss rate increased by 8.9\u0026deg;C, 11.5\u0026deg;C, 25.7\u0026deg;C, dry cracking temperature, active temperature decreased by 18.0\u0026deg;C, 5.6\u0026deg;C, respectively. The temperature difference gradually decreases, which between the ILs treated coal and the raw coal before the \u003cem\u003eT\u003c/em\u003e\u003csub\u003e6\u003c/sub\u003e. The onset temperature and the end temperature of CO\u003csub\u003e2\u003c/sub\u003e and CO from the treated samples were increased at 2192\u0026ndash;2180 cm\u003csup\u003e\u0026ndash;1\u003c/sup\u003e and 2123\u0026ndash;2103 cm\u003csup\u003e\u0026ndash;1\u003c/sup\u003e. The apparent activation energy increases and the oxidation model changes during the evaporation and thermal decomposition.\u003c/p\u003e","manuscriptTitle":"Effect of Four Types of Imidazolium-based Ionic Liquids on Oxidation Parameters and Gas products of Lignite","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2026-01-30 17:20:43","doi":"10.21203/rs.3.rs-8036165/v1","editorialEvents":[{"type":"communityComments","content":0}],"status":"published","journal":{"display":true,"email":"[email protected]","identity":"researchsquare","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":true,"externalIdentity":"","sideBox":"","snPcode":"","submissionUrl":"/submission","title":"Research Square","twitterHandle":"researchsquare","acdcEnabled":true,"dfaEnabled":false,"editorialSystem":"","reportingPortfolio":"","inReviewEnabled":false,"inReviewRevisionsEnabled":true}}],"origin":"","ownerIdentity":"be922fdd-608d-4ceb-9307-4ef27b6c546e","owner":[],"postedDate":"January 30th, 2026","published":true,"recentEditorialEvents":[{"type":"reviewerAgreed","content":"71562378469785985951987563364670992869","date":"2026-05-10T08:56:51+00:00","index":27,"fulltext":""}],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2026-01-30T17:20:43+00:00","versionOfRecord":[],"versionCreatedAt":"2026-01-30 17:20:43","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-8036165","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-8036165","identity":"rs-8036165","version":["v1"]},"buildId":"XKTyCvWXoU3ODBz1xrDgd","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}