{"id":2619,"date":"2026-09-14T15:35:19","date_gmt":"2026-09-14T20:35:19","guid":{"rendered":"https:\/\/www.cestoil.com\/?page_id=2619"},"modified":"2026-09-14T17:12:48","modified_gmt":"2026-09-14T22:12:48","slug":"demulsifiant-cc8289-pour-le-dessalage-du-petrole-brut","status":"publish","type":"page","link":"https:\/\/www.cestoil.com\/fr\/case-studies\/cc8289-crude-desalting-demulsifier\/","title":{"rendered":"Northshore CC8289 : Changement de d\u00e9s\u00e9mulsifiant sur deux unit\u00e9s de distillation de brut"},"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.ccr-case{max-width:1120px;margin:36px auto 70px;padding:0 24px;color:#414b53;font:18px\/1.75 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data-publication-version=\"20260914\">\n<nav class=\"ccr-breadcrumb\" aria-label=\"Fil d&#039;Ariane\"><a href=\"\/fr\/etudes-de-cas\/\">\u00c9tudes de cas<\/a> \/ <a href=\"\/fr\/etudes-de-cas\/#refinery-process-solutions\">Solutions pour les proc\u00e9d\u00e9s de raffinage<\/a><\/nav>\n<div class=\"ccr-hero\"><div><p class=\"ccr-label\">Solutions de proc\u00e9d\u00e9s de raffinage \u00b7 \u00c9tude de cas<\/p><h1>Northshore CC8289 : Changement de d\u00e9s\u00e9mulsifiant sur deux unit\u00e9s de distillation de brut<\/h1><p class=\"ccr-lead\">Une raffinerie a \u00e9valu\u00e9 un d\u00e9s\u00e9mulsifiant ol\u00e9osoluble sur du p\u00e9trole brut lourd, visqueux et \u00e0 bas point d'\u00e9coulement. \u00c0 un dosage de 8 \u00e0 10 ppm, Northshore CC8289 a ramen\u00e9 la teneur moyenne en sel apr\u00e8s dessalage \u00e0 1,01 et 1,00 mg\/L en juin 2025. Les rapports de r\u00e9ception du client attestent \u00e0 la fois de cette am\u00e9lioration et d'une performance insuffisante en mati\u00e8re de d\u00e9shydratation sur l'unit\u00e9 de traitement des bruts lourds.<\/p><a class=\"ccr-button\" href=\"https:\/\/www.cestoil.com\/fr\/demander-une-etude-de-cas\/?case=2619\">Demander l'\u00e9tude de cas compl\u00e8te<\/a><\/div><aside class=\"ccr-report-preview\" aria-label=\"Aper\u00e7u du rapport\"><a class=\"ccr-preview-card\" href=\"https:\/\/www.cestoil.com\/fr\/demander-une-etude-de-cas\/?case=2619\" aria-label=\"Demandez l&#039;\u00e9tude de cas compl\u00e8te Northshore CC8289\"><img loading=\"lazy\" src=\"https:\/\/www.cestoil.com\/wp-content\/uploads\/cc8289-case-study-preview-v1.png\" width=\"160\" height=\"207\" alt=\"Petit aper\u00e7u de la premi\u00e8re page du rapport d&#039;\u00e9tude de cas Northshore CC8289\" decoding=\"async\"><\/a><p class=\"ccr-preview-caption\"><strong>PDF illustr\u00e9 de 2 pages<\/strong>Rapport complet disponible sur approbation.<\/p><\/aside><\/div>\n<aside class=\"ccr-highlight\" aria-label=\"Observations signal\u00e9es\"><p class=\"ccr-label\">Observations signal\u00e9es<\/p><ul class=\"ccr-observations\"><li><strong>\u221250 %<\/strong>Teneur en sel apr\u00e8s dessalage sur l'unit\u00e9 de brut \u00e0 bas point d'\u00e9coulement : 1,99 \u2192 1,00 mg\/L.<\/li><li><strong>100%<\/strong>...des \u00e9chantillons de juin pr\u00e9sentant une concentration \u2264 2,0 mg\/L sur les deux unit\u00e9s ; l'exigence \u00e9tait d'au moins 80 % .<\/li><li><strong>8\u201310 ppm<\/strong>Dose d\u00e9clar\u00e9e, dans la limite du plafond de \u2264 10 ppm fix\u00e9 par l'appel d'offres.<\/li><\/ul><\/aside>\n<nav class=\"ccr-jump\" aria-label=\"Sur cette page\"><a href=\"#operating-context\">Contexte op\u00e9rationnel<\/a><a href=\"#monitored-application\">Candidature<\/a><a href=\"#reported-results\">R\u00e9sultats communiqu\u00e9s<\/a><a href=\"#case-report\">\u00c9tude de cas compl\u00e8te<\/a><\/nav>\n<section class=\"ccr-section\" id=\"operating-context\"><h2>Contexte op\u00e9rationnel et objectif<\/h2><div><p>Une raffinerie exploite c\u00f4te \u00e0 c\u00f4te deux unit\u00e9s de distillation de brut (atmosph\u00e9rique et sous vide) avec des programmes d'alimentation diff\u00e9rents : l'une traitant <strong>brut lourd et visqueux \u00e0 3 800 t\/j<\/strong>, l'autre sur <strong>p\u00e9trole brut \u00e0 bas point d'\u00e9coulement \u00e0 raison de 3 600 t\/j<\/strong>. Tous deux utilisent des dessaleurs \u00e9lectrostatiques \u00e0 deux \u00e9tages. Le cahier des charges exigeait du sel dessal\u00e9. <strong>\u2264 3,0 mg\/L pour chaque \u00e9chantillon<\/strong> et <strong>\u2264 2,0 mg\/L sur au moins 80 %<\/strong> d'\u00e9chantillons, avec de l'eau dessal\u00e9e <strong>\u2264 0,45 % sur plus de 90 %<\/strong> d'\u00e9chantillons au cours d'un mois donn\u00e9, \u00e0 une dose de d\u00e9s\u00e9mulsifiant de <strong>pas plus de 10 ppm<\/strong>.<\/p><p>Dans le cadre du programme en place, les moyennes enregistr\u00e9es pour l'unit\u00e9 traitant les produits lourds \u00e9taient de 1,53 mg\/L de sel et de 0,41 % d'eau ; pour l'unit\u00e9 traitant les produits \u00e0 bas point d'\u00e9coulement, elles \u00e9taient de 1,99 mg\/L et de 0,36 % . Cestoil a propos\u00e9 <strong>Northshore CC8289<\/strong>, un d\u00e9s\u00e9mulsifiant liposoluble, pour les deux unit\u00e9s et a men\u00e9 des essais industriels en parall\u00e8le. Les r\u00e9sultats concernant la teneur en sel ont \u00e9t\u00e9 compar\u00e9s \u00e0 ceux du dernier mois complet d'utilisation du produit pr\u00e9c\u00e9dent pour chaque unit\u00e9 : avril 2025 pour l'unit\u00e9 traitant des charges lourdes et mars pour l'unit\u00e9 traitant des charges \u00e0 bas point d'\u00e9coulement. Pour la teneur en eau, le rapport relatif \u00e0 l'unit\u00e9 traitant des charges lourdes indique une moyenne ant\u00e9rieure aux essais sans pr\u00e9ciser le mois.<\/p><p>L'essai a \u00e9t\u00e9 r\u00e9alis\u00e9 avec des d\u00e9bits de brut fixes ainsi que des r\u00e9glages nominaux pour l'eau de lavage et l'interface. Les niveaux d'interface \u00e9taient de 35 \u00b1 10 % et 30 \u00b1 10 % pour les premier et second \u00e9tages de l'unit\u00e9 \u00ab brut lourd \u00bb, et de 40 \u00b1 10 % pour les deux \u00e9tages de l'unit\u00e9 \u00ab brut \u00e0 bas point d'\u00e9coulement \u00bb. Le rapport fait \u00e9galement \u00e9tat d'interruptions de l'alimentation en eau de lavage sur l'unit\u00e9 \u00ab brut lourd \u00bb, lesquelles sont abord\u00e9es ci-apr\u00e8s. L'acceptation a \u00e9t\u00e9 \u00e9valu\u00e9e sur la base de <strong>Juin 2025<\/strong>, le deuxi\u00e8me mois complet sous CC8289.<\/p><\/div><\/section>\n<section class=\"ccr-section\" id=\"monitored-application\"><h2>Produit et application surveill\u00e9e<\/h2><div><p>Le CC8289 a \u00e9t\u00e9 inject\u00e9 en amont des dessaleurs. L'unit\u00e9 pour produits \u00e0 bas point d'\u00e9coulement a \u00e9t\u00e9 mise en service. <strong>24 avril 2025 \u00e0 10 ppm<\/strong>; l'unit\u00e9 lourde s'est mise en marche <strong>1er mai \u00e0 environ 8 ppm<\/strong>Les deux doses se situaient en de\u00e7\u00e0 du plafond de l'appel d'offres.<\/p><p>Les d\u00e9bits d'eau de lavage indiqu\u00e9s \u00e9taient de 5 t\/h pour les ballons du premier \u00e9tage et de 3 t\/h pour le deuxi\u00e8me \u00e9tage de l'unit\u00e9 de brut lourd. La teneur en sel et en eau a \u00e9t\u00e9 analys\u00e9e sur des \u00e9chantillons de brut dessal\u00e9 au moyen de <strong>30 juin 2025<\/strong>. La consommation du produit au cours de l'essai a \u00e9t\u00e9 <strong>3,29 t<\/strong> pour l'unit\u00e9 \u00e0 faible d\u00e9bit et <strong>2,23 t<\/strong> pour l'unit\u00e9 lourde.<\/p><\/div><\/section>\n<section class=\"ccr-section ccr-result\" id=\"reported-results\"><h2>R\u00e9sultats communiqu\u00e9s<\/h2><div><p><strong>La teneur en sel a \u00e9t\u00e9 r\u00e9duite de moiti\u00e9 environ sur l'unit\u00e9 \u00e0 faible d\u00e9bit et a diminu\u00e9 d'un tiers sur l'unit\u00e9 \u00e0 d\u00e9bit \u00e9lev\u00e9.<\/strong> La teneur moyenne en sel apr\u00e8s dessalage a diminu\u00e9, passant de <strong>1,99 \u00e0 1,00 mg\/L<\/strong> sur l'unit\u00e9 de coul\u00e9e \u00e0 basse hauteur et depuis <strong>1,53 \u00e0 1,01 mg\/L<\/strong> sur l'unit\u00e9 lourde. Sur les deux unit\u00e9s, <strong>100 % des \u00e9chantillons du mois de juin pr\u00e9sentaient une concentration \u00e9gale ou inf\u00e9rieure \u00e0 2,0 mg\/L.<\/strong>, d\u00e9passant l'exigence de 80 % et respectant la limite distincte de 3,0 mg\/L.<\/p>\n<figure class=\"ccr-chart\"><h3>Teneur en sel du brut dessal\u00e9<\/h3><p class=\"ccr-legend\"><span><i aria-hidden=\"true\"><\/i>Titulaire<\/span><span><i class=\"after\" aria-hidden=\"true\"><\/i>CC8289 \u00b7 Juin 2025<\/span><\/p><div class=\"ccr-chart-row\"><span>P\u00e9trole brut \u00e0 bas point d'\u00e9coulement<\/span><div class=\"ccr-bars\"><div class=\"ccr-bar\"><i style=\"width:79.60%\" aria-hidden=\"true\"><\/i><span>1,99 mg\/L<\/span><\/div><div class=\"ccr-bar after\"><i style=\"width:40.00%\" aria-hidden=\"true\"><\/i><span>1,00 mg\/L<\/span><\/div><\/div><\/div><div class=\"ccr-chart-row\"><span>P\u00e9trole brut lourd<\/span><div class=\"ccr-bars\"><div class=\"ccr-bar\"><i style=\"width:61.20%\" aria-hidden=\"true\"><\/i><span>1,53 mg\/L<\/span><\/div><div class=\"ccr-bar after\"><i style=\"width:40.40%\" aria-hidden=\"true\"><\/i><span>1,01 mg\/L<\/span><\/div><\/div><\/div><figcaption>Figure 1. Moyenne mensuelle d\u00e9clar\u00e9e de la teneur en sels : mars 2025 pour le produit de r\u00e9f\u00e9rence \u00e0 bas point d'\u00e9coulement et avril pour le produit de r\u00e9f\u00e9rence pour moteurs lourds, compar\u00e9s \u00e0 juin 2025 pour le CC8289. Tous les \u00e9chantillons pr\u00e9lev\u00e9s en juin sur les deux produits \u00e9taient conformes au crit\u00e8re de \u2264 2,0 mg\/L.<\/figcaption><\/figure>\n<p><strong>La teneur moyenne en eau a diminu\u00e9 sur les deux unit\u00e9s.<\/strong> De l'eau dessal\u00e9e tombait de <strong>0,36 % \u00e0 0,22 %<\/strong> sur l'unit\u00e9 de coul\u00e9e \u00e0 basse hauteur et depuis <strong>0,41 % \u00e0 0,29 %<\/strong> sur l'unit\u00e9 de produits lourds. Le taux de conformit\u00e9 de l'unit\u00e9 de produits \u00e0 bas point d'\u00e9coulement pour le mois de juin, avec une teneur en eau \u2264 0,45 % , \u00e9tait de <strong>96.7%<\/strong>, d\u00e9passant l'exigence de plus de 90 % .<\/p>\n<figure class=\"ccr-chart\"><h3>Eau dans le brut dessal\u00e9<\/h3><p class=\"ccr-legend\"><span><i aria-hidden=\"true\"><\/i>Titulaire<\/span><span><i class=\"after\" aria-hidden=\"true\"><\/i>CC8289 \u00b7 Juin 2025<\/span><\/p><div class=\"ccr-chart-row\"><span>P\u00e9trole brut \u00e0 bas point d'\u00e9coulement<\/span><div class=\"ccr-bars\"><div class=\"ccr-bar\"><i style=\"width:60.00%\" aria-hidden=\"true\"><\/i><span>0.36 %<\/span><\/div><div class=\"ccr-bar after\"><i style=\"width:36.67%\" aria-hidden=\"true\"><\/i><span>0.22 %<\/span><\/div><\/div><\/div><div class=\"ccr-chart-row\"><span>P\u00e9trole brut lourd<\/span><div class=\"ccr-bars\"><div class=\"ccr-bar\"><i style=\"width:68.33%\" aria-hidden=\"true\"><\/i><span>0.41 %<\/span><\/div><div class=\"ccr-bar after\"><i style=\"width:48.33%\" aria-hidden=\"true\"><\/i><span>0.29 %<\/span><\/div><\/div><\/div><figcaption>Figure 2. Teneur moyenne en eau relev\u00e9e pour le CC8289 en juin 2025 par rapport au produit de r\u00e9f\u00e9rence. La valeur de r\u00e9f\u00e9rence pour les coul\u00e9es \u00e0 faible volume correspond au mois de mars ; le rapport concernant les unit\u00e9s lourdes ne pr\u00e9cise pas le mois retenu pour la moyenne de teneur en eau pr\u00e9alable \u00e0 l'essai. Des moyennes mensuelles plus faibles ne permettent pas, \u00e0 elles seules, de d\u00e9terminer le taux de conformit\u00e9 des \u00e9chantillons.<\/figcaption><\/figure>\n<p><strong>L'unit\u00e9 lourde pr\u00e9sentait une lacune en mati\u00e8re de conformit\u00e9 \u00e0 la r\u00e9ception.<\/strong> Son taux de r\u00e9ussite pour la d\u00e9shydratation en juin \u00e9tait de <strong>86.3%<\/strong>, soit un niveau inf\u00e9rieur \u00e0 l'exigence de plus de 90 % . Le rapport attribue cet \u00e9cart aux fluctuations nocturnes de la teneur en eau du p\u00e9trole brut lourd, durant lesquelles les op\u00e9rateurs interrompaient parfois l'injection d'eau de lavage dans le dessaleur afin de pr\u00e9server la stabilit\u00e9 de l'unit\u00e9. Il fait \u00e9tat d'un taux de conformit\u00e9 de <strong>93,1 % une fois ces p\u00e9riodes exclues<\/strong>. Ce chiffre ajust\u00e9 ne remplace pas le r\u00e9sultat pour le mois complet.<\/p><p>Le rapport de l'unit\u00e9 \u00ab bas point d'\u00e9coulement \u00bb conclut que le CC8289 a surpass\u00e9 le d\u00e9s\u00e9mulsifiant utilis\u00e9 jusqu'alors ; le rapport de l'unit\u00e9 \u00ab produits lourds \u00bb ne formule aucune conclusion comparative. Les deux rapports s'ach\u00e8vent sur des fiches de validation sign\u00e9es par les services de production, de contr\u00f4le qualit\u00e9 et des achats, ainsi que par le directeur g\u00e9n\u00e9ral adjoint.<\/p><\/div><\/section>\n<section class=\"ccr-section\" id=\"operational-value\"><h2>Valeur op\u00e9rationnelle<\/h2><div><p>Les rapports ne fournissent aucun chiffre d'ordre financier. Ils \u00e9valuent l'application sous l'angle du proc\u00e9d\u00e9 : quantit\u00e9s de sel et d'eau \u00e9limin\u00e9es, limites de dosage et contraintes d'exploitation en aval. \u00c0 cet \u00e9gard, les deux unit\u00e9s ont affich\u00e9 des quantit\u00e9s moyennes de sel et d'eau plus faibles, avec des dosages respectant le plafond fix\u00e9 dans l'appel d'offres.<\/p><p>Pour une autre unit\u00e9, une \u00e9valuation \u00e9conomique peut prendre en compte la charge en chlorures en t\u00eate de colonne, la consommation de neutralisant et d'inhibiteur de corrosion, ainsi que la dur\u00e9e de cycle de la colonne de distillation du brut et des \u00e9changeurs de chaleur, parall\u00e8lement au dosage et au co\u00fbt du d\u00e9s\u00e9mulsifiant. Il s'agit l\u00e0 de param\u00e8tres d'\u00e9valuation ; les rapports d'essai ne quantifient pas les \u00e9conomies r\u00e9alis\u00e9es dans ces domaines.<\/p><\/div><\/section>\n<section class=\"ccr-section\" id=\"applying-findings\"><h2>Application des r\u00e9sultats<\/h2><div><p>Lors d'un changement de d\u00e9s\u00e9mulsifiant, consignez les d\u00e9bits d'eau de lavage, les niveaux d'interface et le d\u00e9bit de brut afin de permettre la comparaison entre la p\u00e9riode de r\u00e9f\u00e9rence et la p\u00e9riode de traitement. Utilisez le mois complet pr\u00e9c\u00e9dant imm\u00e9diatement le changement (avec le produit en place), sous r\u00e9serve que les donn\u00e9es d'alimentation et d'exploitation \u00e9tayent cette comparaison, et \u00e9valuez l'acceptabilit\u00e9 sur la base d'un mois complet plut\u00f4t que sur les semaines de transition.<\/p><p>Consignez les conditions d'exploitation associ\u00e9es \u00e0 tout r\u00e9sultat de d\u00e9shydratation hors limites. Le d\u00e9ficit de performance de l'unit\u00e9 de traitement des charges lourdes observ\u00e9 lors de cet essai a co\u00efncid\u00e9 avec des interruptions signal\u00e9es de l'alimentation en eau de lavage. Examinez \u00e0 la fois le r\u00e9sultat mensuel complet et toute analyse ajust\u00e9e explicitement d\u00e9finie ; la comparaison avant\/apr\u00e8s ne permet pas d'isoler tous les facteurs op\u00e9rationnels de la performance chimique.<\/p><\/div><\/section>\n<section class=\"ccr-request\" id=\"case-report\"><h2>Discuter d'une application similaire<\/h2><p>Demandez l'\u00e9tude de cas compl\u00e8te et illustr\u00e9e, et communiquez les informations suivantes : gamme de p\u00e9troles bruts et d\u00e9bit de traitement, relev\u00e9s mensuels complets (teneurs en sel et en eau apr\u00e8s dessalage), type et dosage du d\u00e9s\u00e9mulsifiant utilis\u00e9, ainsi que les caract\u00e9ristiques du dessaleur (nombre d'\u00e9tages, d\u00e9bit d'eau de lavage, contr\u00f4le de l'interface et perte de charge \u00e0 la vanne de m\u00e9lange).<\/p><a class=\"ccr-button\" href=\"https:\/\/www.cestoil.com\/fr\/demander-une-etude-de-cas\/?case=2619\">Demander l'\u00e9tude de cas compl\u00e8te<\/a><p class=\"ccr-small\" style=\"margin-top:16px\">Les informations sur l'entreprise et l'usage pr\u00e9vu sont examin\u00e9s avant la communication du PDF d\u00e9taill\u00e9. Pour une assistance li\u00e9e \u00e0 la demande, <a href=\"\/fr\/contact\/\">Contactez notre \u00e9quipe technique<\/a>.<\/p><\/section>\n<p class=\"ccr-small\">Source : Rapports d'acceptation client concernant deux unit\u00e9s de distillation de brut (atmosph\u00e9rique et sous vide) de la raffinerie participante, couvrant des essais industriels r\u00e9alis\u00e9s entre avril et juin 2025 par rapport aux valeurs de r\u00e9f\u00e9rence de teneur en sel \u00e9tablies en mars\/avril 2025, tels que r\u00e9sum\u00e9s dans l'\u00e9tude de cas Cestoil CS-CDU-CC8289-2026A, v1.0. Toutes les donn\u00e9es d'exploitation sont communiqu\u00e9es par le client. Les variations en pourcentage sont calcul\u00e9es par arrondi \u00e0 partir des valeurs d\u00e9clar\u00e9es. Les performances refl\u00e8tent les conditions sp\u00e9cifiques des essais et sont susceptibles de varier en fonction de la qualit\u00e9 de la charge et des conditions d'exploitation.<\/p>\n<nav class=\"ccr-links\" aria-label=\"Pages connexes\"><a href=\"\/fr\/applications-des-produits\/solutions-de-procedes-de-raffinage\/demulsifiant\/\">Pr\u00e9traitement du p\u00e9trole brut \u2014 Dessalage et d\u00e9s\u00e9mulsification<\/a><a href=\"\/fr\/applications-des-produits\/solutions-de-procedes-de-raffinage\/\">Solutions pour les proc\u00e9d\u00e9s de raffinage<\/a><a href=\"\/fr\/etudes-de-cas\/\">Toutes les \u00e9tudes de cas<\/a><\/nav>\n<\/article>\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Northshore CC8289 a ramen\u00e9 la teneur en sel apr\u00e8s dessalage \u00e0 8\u201310 ppm sur les unit\u00e9s traitant des bruts lourds et \u00e0 bas point d'\u00e9coulement. Examinez les r\u00e9sultats de l'essai, l'\u00e9cart de d\u00e9shydratation et la demande de rapport complet.<\/p>","protected":false},"author":2,"featured_media":0,"parent":669,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"footnotes":""},"class_list":["post-2619","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=\"Northshore CC8289 reduced desalted salt on heavy and low-pour crude units at 8\u201310 ppm. 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