{"id":1172,"date":"2021-02-13T10:49:50","date_gmt":"2021-02-13T16:49:50","guid":{"rendered":"\/?page_id=1172"},"modified":"2026-09-14T15:35:20","modified_gmt":"2026-09-14T20:35:20","slug":"demulsifiant","status":"publish","type":"page","link":"https:\/\/www.cestoil.com\/fr\/products-applications\/refinery-process-solutions\/demulsifier\/","title":{"rendered":"Pr\u00e9traitement du p\u00e9trole brut \u2014 Dessalage et d\u00e9s\u00e9mulsification"},"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>.ctx-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.ctx-card{border:1px solid #dedede;background:#f5f6f8;padding:26px;min-width:0}.ctx-card 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ul{margin:0}.cpr-cta{border-top:1px solid #dedede;padding-top:38px}.cpr-cta p{max-width:760px}.cpr-hero.cpr-no-image{grid-template-columns:1fr;max-width:860px}\n@media(max-width:800px){.cpr-hero{gap:24px;grid-template-columns:1fr}.cpr-hero img{height:260px}.cpr-section{grid-template-columns:1fr;gap:8px}.cpr-page h2{font-size:28px!important}}\n@media(max-width:600px){.cpr-page{padding:24px 0 44px}.cpr-page h1{font-size:32px!important}.cpr-page h2{font-size:26px!important}.cpr-page h3{font-size:21px!important}.cpr-page p,.cpr-page li{font-size:16px!important;line-height:1.7!important}.cpr-hero .cpr-lead{font-size:18px!important}.cpr-hero{padding-bottom:32px}.cpr-hero img{height:220px}.cpr-section{padding:28px 0}.cpr-grid{grid-template-columns:1fr;gap:16px}.cpr-card,.cpr-related{padding:22px}.cpr-page .cpr-breadcrumb{margin-bottom:24px}}\n<\/style><article class=\"cpr-page\" id=\"cpr-1172\"><nav class=\"cpr-breadcrumb\" aria-label=\"Breadcrumb\"><a href=\"\/products-applications\/\">Products &amp; Applications<\/a> \/ <a href=\"\/products-applications\/refinery-process-solutions\/\">Refinery Process Solutions<\/a><\/nav><header class=\"cpr-hero\"><div><p class=\"cpr-kicker\">Refinery Process Solutions<\/p><h1>Crude Pretreatment \u2014 Desalting &amp; Demulsification<\/h1><p class=\"cpr-lead\">Demulsifiers assist water separation from crude-oil emulsions during pretreatment and desalting. The appropriate formulation depends on the crude blend, emulsion behavior and available separation conditions.<\/p><a class=\"cpr-button\" href=\"\/contact\/\">Discuss your application<\/a><\/div><figure><img src=\"https:\/\/www.cestoil.com\/wp-content\/uploads\/demulsifiers.jpg\" alt=\"\" decoding=\"async\"><\/figure><\/header><section class=\"cpr-section\"><h2>Application and function<\/h2><div class=\"cpr-body\"><p>Demulsifier treatment addresses emulsified water and the oil\u2013water interface in crude desalting. It supports water release and phase separation so that salt-containing water can be removed from the crude.<\/p><p>Formulations have different solubility and delivery characteristics. Selection should reflect the actual crude blend; changes in feed or desalter operation can require reassessment.<\/p><\/div><\/section><section class=\"cpr-section\"><h2>Information for selection<\/h2><div class=\"cpr-body\"><ul><li>Crude composition, water content and emulsion stability<\/li><li>Wash-water quality, mixing conditions and separation temperature<\/li><li>Interface behavior, residence time and existing chemical program<\/li><\/ul><\/div><\/section><section class=\"cpr-section\"><h2>Evaluation and technical review<\/h2><div class=\"cpr-body\"><p>Use representative samples to compare water release, interface clarity and residual water in the oil. Review the separated water as well as the treated crude.<\/p><p>A plant evaluation should record feed changes and desalter operation alongside treatment response. Screening results inform a monitored introduction of the selected formulation.<\/p><\/div><\/section><aside class=\"cpr-related\" aria-label=\"Related case study\"><h2>Application case study<\/h2><p><a href=\"https:\/\/www.cestoil.com\/case-studies\/crude-desalting-variable-feed\/\">Stabilizing Crude Desalting Under Variable Feed Conditions<\/a><\/p><p>A refinery evaluated a revised demulsifier program while crude feed and processing conditions varied. The trial combined chemical treatment with operating adjustments and monitored salt in desalted crude alongside oil in the desalter effluent water.<\/p><\/aside><aside class=\"cpr-related sol-related-program\"><h2>Related technical solution<\/h2><p><a href=\"https:\/\/www.cestoil.com\/solutions\/crude-pretreatment-desalting-optimization\/\">Crude Pretreatment and Desalting Optimization<\/a><\/p><\/aside><section class=\"ctx-evidence\"><h2>Related solutions &amp; case studies<\/h2><div class=\"ctx-grid\"><article class=\"ctx-card\"><p class=\"cpr-kicker\">Case study<\/p><h3>Desalting across changing crude slates<\/h3><p>Northshore CC8290<\/p><a href=\"https:\/\/www.cestoil.com\/case-studies\/crude-desalting-variable-feed\/\">Read case study \u2192<\/a><\/article><article class=\"ctx-card\"><p class=\"cpr-kicker\">Technical solution<\/p><h3>Crude pretreatment &amp; desalting optimization<\/h3><a href=\"https:\/\/www.cestoil.com\/solutions\/crude-pretreatment-desalting-optimization\/\">Read technical solution \u2192<\/a><\/article><\/div><\/section><section class=\"cpr-cta\"><h2>Discuss product selection<\/h2><p>Share the application, operating conditions and requirements that matter to your evaluation. Product-specific properties, use guidance and handling information are provided in the relevant product data sheet and safety data sheet.<\/p><a class=\"cpr-button\" href=\"\/contact\/\">Contact our technical team<\/a><a href=\"\/request-a-sample\/\" class=\"cpr-button\">Request a sample<\/a><\/section><\/article>\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><br \/>\n<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>.cc8289-related{max-width:1120px;margin:30px auto;padding:28px;border-left:3px solid #c9ac63;background:#f5f6f8;font:17px\/1.7 Lato,Arial,sans-serif;color:#4a4a4a}.cc8289-related h2{font-size:26px;color:#333}.cc8289-related a{color:#806b34;text-decoration:underline}<\/style><aside class=\"cc8289-related\"><p>Related case study<\/p><h2>Northshore CC8289: Desalting heavy and low-pour crude<\/h2><p>A monitored changeover on two crude units at 8\u201310 ppm, with reported salt and water results and a documented dehydration shortfall.<\/p><a href=\"https:\/\/www.cestoil.com\/case-studies\/cc8289-crude-desalting-demulsifier\/\">Read the case study \u2192<\/a><\/aside>\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Traitements pour la s\u00e9paration p\u00e9trole-eau et le fonctionnement du dessaleur face \u00e0 des conditions d'alimentation variables.<\/p>","protected":false},"author":2,"featured_media":0,"parent":144,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"class_list":["post-1172","page","type-page","status-publish","hentry","description-off"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"Treatments for crude-water separation and desalter operation across changing feed conditions.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/www.cestoil.com\/fr\/products-applications\/refinery-process-solutions\/demulsifier\/\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO Pro (AIOSEO) 5.0.4\" \/>\n\t\t<meta property=\"og:locale\" content=\"fr_CA\" \/>\n\t\t<meta property=\"og:site_name\" content=\"Cestoil Chemical Inc.\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Crude Pretreatment \u2014 Desalting &amp; 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