Study on the Hazards of Oil and Gas Emissions from Oil Storage Tanks and Tank Groups with Different Nitrogen Supplementation Levels through Breathing Valves

Study on the Hazards of Oil and Gas Emissions from Oil Storage Tanks and Tank Groups with Different Nitrogen Supplementation Levels through Breathing Valves | 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 Study on the Hazards of Oil and Gas Emissions from Oil Storage Tanks and Tank Groups with Different Nitrogen Supplementation Levels through Breathing Valves Dongxu ZHANG, Yingquan DUO, Zongzhi WU This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-7156650/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 The external wind speed forms a vortex at the top of the storage tanks, accelerating the diffusion and dilution of emissions through the top breathing valve of the tank. This downwind effect is observed in single tank, two tank, or three tank configurations, with acceleration and dilution effects becoming more pronounced as wind speed increases. Installing monitoring equipment at the bottom of the storage tank to monitor the danger of breathing valve emissions is ineffective. The monitoring of the lower explosive limit concentration of breathing valve emissions is mainly in the downwind direction, and the vertical and vertical upward diffusion is not obvious. The higher the emission concentration, the shorter the monitoring time required. The higher the external wind speed, the smaller the explosion hazard area formed in the downwind direction. The monitoring equipment installed at 0.1m from the center of the tank top can quickly monitor the lower explosive limit concentration formed by the discharge of the breathing valve. Comprehensive measures should be taken to control the detected lower explosive limit concentration. Classification number: X913 Document identification code: A Physical sciences/Energy science and technology Physical sciences/Engineering Earth and environmental sciences/Environmental sciences Physical sciences/Physics Respiratory valve Degree of nitrogen supplementation Monitoring equipment Emission concentration Lower explosive limit Full Text Additional Declarations No competing interests reported. Supplementary Files Studyrelevantdataandimages.zip 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. 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explosive limit ","lastPublishedDoi":"10.21203/rs.3.rs-7156650/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-7156650/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"\u003cp\u003eThe external wind speed forms a vortex at the top of the storage tanks, accelerating the diffusion and dilution of emissions through the top breathing valve of the tank. This downwind effect is observed in single tank, two tank, or three tank configurations, with acceleration and dilution effects becoming more pronounced as wind speed increases. Installing monitoring equipment at the bottom of the storage tank to monitor the danger of breathing valve emissions is ineffective. The monitoring of the lower explosive limit concentration of breathing valve emissions is mainly in the downwind direction, and the vertical and vertical upward diffusion is not obvious. The higher the emission concentration, the shorter the monitoring time required. The higher the external wind speed, the smaller the explosion hazard area formed in the downwind direction. The monitoring equipment installed at 0.1m from the center of the tank top can quickly monitor the lower explosive limit concentration formed by the discharge of the breathing valve. Comprehensive measures should be taken to control the detected lower explosive limit concentration.\u003c/p\u003e\n\u003cp\u003e\u003cstrong\u003eClassification number: X913 Document identification code: A\u003c/strong\u003e\u003c/p\u003e","manuscriptTitle":"Study on the Hazards of Oil and Gas Emissions from Oil Storage Tanks and Tank Groups with Different Nitrogen Supplementation Levels through Breathing Valves","msid":"","msnumber":"","nonDraftVersions":[{"code":1,"date":"2025-09-25 16:50:58","doi":"10.21203/rs.3.rs-7156650/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":"2f29162d-262b-43b6-bf88-ccdd5e2b7951","owner":[],"postedDate":"September 25th, 2025","published":true,"recentEditorialEvents":[],"rejectedJournal":[],"revision":"","amendment":"","status":"posted","subjectAreas":[{"id":55015480,"name":"Physical sciences/Energy science and technology"},{"id":55015481,"name":"Physical sciences/Engineering"},{"id":55015482,"name":"Earth and environmental sciences/Environmental sciences"},{"id":55015483,"name":"Physical sciences/Physics"}],"tags":[],"updatedAt":"2025-10-16T06:39:04+00:00","versionOfRecord":[],"versionCreatedAt":"2025-09-25 16:50:58","video":"","vorDoi":"","vorDoiUrl":"","workflowStages":[]},"version":"v1","identity":"rs-7156650","journalConfig":"researchsquare"},"__N_SSP":true},"page":"/article/[identity]/[[...version]]","query":{"redirect":"/article/rs-7156650","identity":"rs-7156650","version":["v1"]},"buildId":"8U1c8b4HqxoKbykW_rLl7","isFallback":false,"isExperimentalCompile":false,"dynamicIds":[84888],"gssp":true,"scriptLoader":[]}