{"id":1706,"date":"2026-09-05T17:20:19","date_gmt":"2026-09-05T22:20:19","guid":{"rendered":"https:\/\/cestoil.com\/?page_id=1706"},"modified":"2026-09-06T08:49:15","modified_gmt":"2026-09-06T13:49:15","slug":"diesel-lubricity-refinery-blending","status":"publish","type":"page","link":"https:\/\/www.cestoil.com\/fr\/case-studies\/diesel-lubricity-refinery-blending\/","title":{"rendered":"Am\u00e9lioration du pouvoir lubrifiant du gazole dans le m\u00e9lange en raffinerie"},"content":{"rendered":"<div class=\"wpb-content-wrapper\" id=\"wpb-content-root\"><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_raw_code wpb_raw_html wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<style>\n.cpr-page{font-family:Lato,Helvetica,Arial,sans-serif;color:#4a4a4a;font-size:17px;line-height:1.75;max-width:1180px;margin:0 auto;padding:34px 0 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.cs-observations{padding:22px}.cs-filter+label{margin-right:6px;font-size:15px;padding:10px 12px}.cs-page .cpr-hero img{height:220px}}\n<\/style><article class=\"cpr-page cs-page\" id=\"case-1706\"><nav class=\"cpr-breadcrumb\" aria-label=\"Breadcrumb\"><a href=\"\/case-studies\/\">Case Studies<\/a><span aria-hidden=\"true\">\/<\/span><span>Mobility<\/span><\/nav><header class=\"cpr-hero\"><div><p class=\"cpr-kicker\">Mobility \u00b7 Case study<\/p><h1>Improving Diesel Lubricity in Refinery Blending<\/h1><p class=\"cpr-lead\">A refinery evaluated lubricity treatment after untreated diesel samples showed larger wear scars than its project target allowed. The case compares treated and untreated samples using the high-frequency reciprocating rig method, commonly known as HFRR.<\/p><a class=\"cpr-button\" href=\"\/contact\/\">Discuss a similar application<\/a><\/div><figure><img src=\"https:\/\/www.cestoil.com\/wp-content\/uploads\/demulsifiers.jpg\" alt=\"\" decoding=\"async\"><figcaption class=\"cs-note\">Application image; not a photograph of the customer site.<\/figcaption><\/figure><\/header><aside class=\"cs-observations\" aria-label=\"Reported observations\"><h2>Reported observations<\/h2><ul><li>Smaller reported HFRR wear scars after treatment<\/li><li>Comparisons across multiple treated samples<\/li><li>Selection tied to project acceptance criteria<\/li><\/ul><\/aside><section class=\"cpr-section\"><h2>Operating context<\/h2><div class=\"cpr-body\"><p>The refinery needed to address diesel lubricity during changes in production and blending requirements. Sample testing identified a treatment need, and the site evaluated an additive program using its fuel streams and existing injection arrangements.<\/p><\/div><\/section><section class=\"cpr-section\"><h2>Challenge<\/h2><div class=\"cpr-body\"><p>The immediate objective was to improve the measured lubricity response of the refinery\u2019s diesel. The comparison needed to connect treatment addition with a defined laboratory result that could be assessed against the project\u2019s acceptance criteria.<\/p><\/div><\/section><section class=\"cpr-section\"><h2>Evaluation and treatment<\/h2><div class=\"cpr-body\"><p>The refinery introduced lubricity treatment through its additive-injection systems and compared samples at different treatment levels. HFRR wear-scar diameter was the principal reported measure. The results were reviewed against the project\u2019s lubricity objective as part of selecting the blending treatment.<\/p><\/div><\/section><section class=\"cpr-section\"><h2>Observed results<\/h2><div class=\"cpr-body\"><p>The case summary reports smaller wear scars in each of the displayed treated-sample comparisons. This supports the reported lubricity response for those samples and test conditions. The measurements describe fuel-sample performance; engine durability would require a separate evaluation.<\/p><\/div><\/section><section class=\"cpr-section\"><h2>Application considerations<\/h2><div class=\"cpr-body\"><p>A new evaluation should use representative blend samples and the customer\u2019s applicable acceptance criteria. Base-fuel composition and the existing additive package should be recorded with sample preparation and test conditions. Lubricity results should form part of the refinery\u2019s wider finished-fuel assessment before an operating treatment is selected.<\/p><\/div><\/section><aside class=\"cpr-related\"><h2>Related product category<\/h2><p><a href=\"https:\/\/www.cestoil.com\/solutions\/fuel-additives\/lubricity-improvers\/\">Lubricity improvers<\/a><\/p><\/aside><section class=\"cpr-cta\"><h2>Discuss a similar application<\/h2><p>Useful starting points for a technical review:<\/p><ul><li>Representative diesel blends and acceptance criteria<\/li><li>Existing additive package and injection arrangements<\/li><li>HFRR conditions and sample-comparison records<\/li><\/ul><a class=\"cpr-button\" href=\"\/contact\/\">Contact our technical team<\/a><\/section><footer class=\"cs-source\"><p>This overview is based on a Cestoil case summary. Observations relate to the reported application and operating conditions; treatment selection requires a review of the intended application.<\/p><a href=\"\/case-studies\/\">Explore all case studies<\/a><\/footer><\/article>\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Une raffinerie a \u00e9valu\u00e9 le traitement d'onctuosit\u00e9 apr\u00e8s que des \u00e9chantillons de diesel non trait\u00e9 ont pr\u00e9sent\u00e9 des empreintes d'usure plus grandes que ne le permettait l'objectif de son projet. Le cas compare des \u00e9chantillons trait\u00e9s et non trait\u00e9s en utilisant la m\u00e9thode du banc \u00e0 mouvement alternatif \u00e0 haute fr\u00e9quence, commun\u00e9ment appel\u00e9e HFRR.<\/p>","protected":false},"author":2,"featured_media":0,"parent":669,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-1706","page","type-page","status-publish","hentry","description-off"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"A refinery blending evaluation compared treated and untreated diesel samples using HFRR wear-scar measurements.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" 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