Catalytic Study for Linear Olefin Formation from Ethanol over Phosphorus-modified Beta-Zeolite Catalysts

Catalytic Study for Linear Olefin Formation from Ethanol over Phosphorus-modified Beta-Zeolite Catalysts | 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 Catalytic Study for Linear Olefin Formation from Ethanol over Phosphorus-modified Beta-Zeolite Catalysts Ghassan Hadi This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4613950/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 In this study, we explore the catalytic performance of phosphorus-modified Beta zeolite catalysts for the selective conversion of ethanol to linear olefins, to understand the effects of phosphorus incorporation on the structural, textural, acidic, and hydrophobic properties of the zeolite catalysts, we employed various characterization techniques, such as XRD, N 2 physisorption, NH 3 -TPD, and TGA, the phosphorus-modified Beta zeolites demonstrated enhanced selectivity towards C 4 -C 12 linear olefins, with the P/Beta-5 catalyst (containing 5 wt.% phosphorus) achieving an impressive 72% combined selectivity, we attribute this improved catalytic performance to the moderation of acid site strength and density, as well as the increased hydrophobicity induced by phosphorus modification, these properties effectively suppressed undesired side reactions and promoted the formation of linear olefins through the oligomerization-cracking pathway, we systematically investigated the influence of phosphorus loading and modification method on the catalytic activity, revealing important structure-activity relationships. Based on our experimental findings, we propose a reaction mechanism that highlights the basic role of phosphorus in modulating the reaction pathways, the results of this study give us valuable insights into the design and optimization of phosphorus-modified zeolite catalysts for the efficient and desired production of linear olefins from bio-derived ethanol. Ethanol-to-Olefins (ETO) Linear Olefins Phosphorus-modified Zeolites Catalyst Design Acidity Modulation Hydrophobicity Selectivity Stability Full Text 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-4613950","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":322746479,"identity":"19109397-e29b-4f36-a6fe-0d4a7895f33d","order_by":0,"name":"Ghassan Hadi","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA7UlEQVRIiWNgGAWjYDACCSjNOIP5AIR1AIyI0sKWAFFKtBYGCR4DuBa8QD66+fHHHzV3GJhn93x7/LGNQY7vRgLjgTd4tBjeOWYmzXPsGQPjnLPbDQ62MRhL3khgODgHn5YZCWbMDGyHgX7J3SYB1JK4AajlMA9eLemfP/74B9KS8wykpZ6gFnmJHAMJ3jawFjaQlgQDQloMJHLKpHn7DvMwzkgzkzhzTsJw5pmHDXj9Ij8jffPHH98OyxnOSH4mUVFmI893PPnwB3whZnAAQvMYNoBpUDQxNjDg9UsDjIEijE/LKBgFo2AUjDgAACc4VR9vJAl1AAAAAElFTkSuQmCC","orcid":"https://orcid.org/0000-0002-3402-935X","institution":"Northern Technical University","correspondingAuthor":true,"prefix":"","firstName":"Ghassan","middleName":"","lastName":"Hadi","suffix":""}],"badges":[],"createdAt":"2024-06-20 22:33:43","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4613950/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4613950/v1","draftVersion":[],"editorialEvents":[],"editorialNote":"","failedWorkflow":false,"files":[{"id":64149163,"identity":"6f9409ec-a396-4dcc-acff-d9c6566fa5aa","added_by":"auto","created_at":"2024-09-08 22:27:13","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":390942,"visible":true,"origin":"","legend":"","description":"","filename":"R13.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4613950/v1_covered_2611d8a8-0b5b-4f67-aaa5-c329fbf27650.pdf"}],"financialInterests":"","formattedTitle":"Catalytic Study for Linear Olefin Formation from Ethanol over Phosphorus-modified Beta-Zeolite Catalysts","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":"Ethanol-to-Olefins (ETO), Linear Olefins, Phosphorus-modified Zeolites, Catalyst Design, Acidity Modulation, Hydrophobicity, Selectivity, Stability","lastPublishedDoi":"10.21203/rs.3.rs-4613950/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4613950/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eIn this study, we explore the catalytic performance of phosphorus-modified Beta zeolite catalysts for the selective conversion of ethanol to linear olefins, to understand the effects of phosphorus incorporation on the structural, textural, acidic, and hydrophobic properties of the zeolite catalysts, we employed various characterization techniques, such as XRD, N\u003csub\u003e2\u003c/sub\u003e physisorption, NH\u003csub\u003e3\u003c/sub\u003e-TPD, and TGA, the phosphorus-modified Beta zeolites demonstrated enhanced selectivity towards C\u003csub\u003e4\u003c/sub\u003e-C\u003csub\u003e12\u003c/sub\u003e linear olefins, with the P/Beta-5 catalyst (containing 5 wt.% phosphorus) achieving an impressive 72% combined selectivity, we attribute this improved catalytic performance to the moderation of acid site strength and density, as well as the increased hydrophobicity induced by phosphorus modification, these properties effectively suppressed undesired side reactions and promoted the formation of linear olefins through the oligomerization-cracking pathway, we systematically investigated the influence of phosphorus loading and modification method on the catalytic activity, revealing important structure-activity relationships. Based on our experimental findings, we propose a reaction mechanism that highlights the basic role of phosphorus in modulating the reaction pathways, the results of this study give us valuable insights into the design and optimization of phosphorus-modified zeolite catalysts for the efficient and desired production of linear olefins from bio-derived ethanol.\u003c/p\u003e","manuscriptTitle":"Catalytic Study for Linear Olefin Formation from Ethanol over Phosphorus-modified Beta-Zeolite Catalysts","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2024-07-29 17:14:00","doi":"10.21203/rs.3.rs-4613950/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":"dc441070-ad75-4248-b6be-79fcdcf93e79","owner":[],"postedDate":"July 29th, 2024","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[],"tags":[],"updatedAt":"2024-09-08T22:19:06+00:00","versionOfRecord":[],"versionCreatedAt":"2024-07-29 17:14:00","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-4613950","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-4613950","identity":"rs-4613950","version":["v1"]},"buildId":"qtupq5eGEP_6zYnWcrvyt","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}