{"id":1705,"date":"2026-09-05T17:20:19","date_gmt":"2026-09-05T22:20:19","guid":{"rendered":"https:\/\/cestoil.com\/?page_id=1705"},"modified":"2026-09-12T12:16:04","modified_gmt":"2026-09-12T17:16:04","slug":"gestion-de-la-corrosion-liee-au-petrole-brut-a-forte-acidite","status":"publish","type":"page","link":"https:\/\/www.cestoil.com\/fr\/case-studies\/high-acid-crude-corrosion-management\/","title":{"rendered":"Northshore CK356N8C : Gestion de la corrosion caus\u00e9e par le p\u00e9trole brut \u00e0 forte acidit\u00e9"},"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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.ccr-small{font-size:14px;line-height:1.65;color:#59676e}.ccr-case .ccr-links{display:flex;flex-wrap:wrap;gap:12px 24px;font-size:16px}\n.ccr-case .ccr-hero{display:grid;grid-template-columns:minmax(0,1fr) 260px;gap:48px;align-items:start}\n.ccr-case .ccr-report-preview{padding:14px 6px 0;text-align:center}.ccr-case .ccr-preview-card{display:block;position:relative;background:#fff;padding:8px;border:1px solid #d8dde0;box-shadow:0 10px 28px rgba(37,61,76,.13);text-decoration:none}\n.ccr-case .ccr-preview-card img{display:block;width:100%;height:auto}.ccr-case .ccr-preview-card:hover{outline:2px solid #c5a356;outline-offset:3px}.ccr-case .ccr-preview-badge{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);padding:6px 14px;border-radius:2px;background:#293f4e;color:#fff;font-size:12px;line-height:1.4;letter-spacing:.12em;font-weight:700}\n.ccr-case .ccr-preview-caption{font-size:14px;line-height:1.6;margin:16px 0 0;color:#59676e}.ccr-case .ccr-preview-caption strong{display:block;color:#253d4c;font-weight:700}\n@media(max-width:850px){.ccr-case .ccr-hero{grid-template-columns:1fr;gap:24px}.ccr-case .ccr-report-preview{width:248px;max-width:100%;margin:0 auto}}\n@media(max-width:800px){.ccr-case .ccr-section{grid-template-columns:1fr;gap:4px;padding:26px 0}.ccr-case .ccr-section h2{font-size:25px}.ccr-case .ccr-result{padding:24px;margin:8px -12px}.ccr-case{padding:0 18px}.ccr-case .ccr-lead{font-size:20px}.ccr-case .ccr-request{padding:24px}.ccr-case .ccr-highlight{padding:21px}.ccr-case .ccr-section,.ccr-case .ccr-request{scroll-margin-top:90px}}\n<\/style><article class=\"ccr-case\" data-summary-version=\"expanded-20260912\"><nav class=\"ccr-breadcrumb\" aria-label=\"Fil d&#039;Ariane\"><a href=\"\/fr\/etudes-de-cas\/\">\u00c9tudes de cas<\/a> \/ Solutions de proc\u00e9d\u00e9s de raffinage<\/nav><p class=\"ccr-label\">Vue d'ensemble de l'\u00e9tude de cas<\/p><h1>Northshore CK356N8C : Gestion de la corrosion caus\u00e9e par le p\u00e9trole brut \u00e0 forte acidit\u00e9<\/h1><p class=\"ccr-lead\">Une raffinerie traitant du p\u00e9trole brut \u00e0 forte acidit\u00e9 a \u00e9valu\u00e9 le produit Northshore CK356N8C dans le cadre d'un programme de gestion de la corrosion \u00e0 haute temp\u00e9rature. Des techniciens Cestoil et de la raffinerie ont examin\u00e9 l'historique de la corrosion, les temp\u00e9ratures des flux et la m\u00e9tallurgie des \u00e9quipements avant d'introduire cet inhibiteur exempt de phosphore. L'\u00e9tude fait \u00e9tat d'une r\u00e9duction de 83 % de l'indicateur de teneur en fer surveill\u00e9 apr\u00e8s la p\u00e9riode de traitement initiale, au sein d'un programme qui s'est poursuivi pendant un an. Tout l'int\u00e9r\u00eat de cette d\u00e9marche r\u00e9side dans la mise en relation du choix du produit et du suivi sur site avec une probl\u00e9matique de corrosion sp\u00e9cifique \u00e0 la raffinerie.<\/p><a class=\"ccr-button\" href=\"https:\/\/www.cestoil.com\/fr\/demander-une-etude-de-cas\/?case=1705\">Demander l'\u00e9tude de cas compl\u00e8te<\/a><aside class=\"ccr-highlight\" aria-label=\"Observation cl\u00e9\"><p class=\"ccr-label\">Northshore CK356N8C<\/p><strong>83 % ont signal\u00e9 une diminution de l'indicateur de fer surveill\u00e9.<\/strong><\/aside><nav class=\"ccr-jump\" aria-label=\"Sur cette page\"><a href=\"#case-section-1\">D\u00e9fi op\u00e9rationnel<\/a><a href=\"#case-section-3\">Mise en \u0153uvre sur le terrain<\/a><a href=\"#case-section-4\">R\u00e9sultats communiqu\u00e9s<\/a><a href=\"#case-report\">\u00c9tude de cas compl\u00e8te<\/a><\/nav><section class=\"ccr-section\" id=\"case-section-1\"><h2>Le d\u00e9fi op\u00e9rationnel li\u00e9 au p\u00e9trole brut \u00e0 forte acidit\u00e9<\/h2><div><p>La raffinerie a signal\u00e9 des probl\u00e8mes de corrosion \u00e0 haute temp\u00e9rature plus s\u00e9v\u00e8res lors du traitement de p\u00e9trole brut \u00e0 forte acidit\u00e9. La pr\u00e9sence de taux \u00e9lev\u00e9s de fer dans un flux lat\u00e9ral de la distillation sous vide figurait parmi les observations ayant motiv\u00e9 une \u00e9valuation approfondie. L'\u00e9quipe devait comprendre les conditions op\u00e9ratoires en cause et \u00e9valuer un traitement susceptible de soutenir les objectifs de la raffinerie en mati\u00e8re de gestion de la corrosion.<\/p><p>L'acidit\u00e9 du brut a \u00e9t\u00e9 prise en compte parall\u00e8lement \u00e0 la temp\u00e9rature et \u00e0 la m\u00e9tallurgie. Cette \u00e9valuation \u00e9largie est importante, car une propri\u00e9t\u00e9 globale du brut ne suffit pas \u00e0 d\u00e9crire l'\u00e9tat de chaque \u00e9quipement ou de chaque flux. L'\u00e9tude s'est concentr\u00e9e sur l'historique de la raffinerie et sur les flux probl\u00e9matiques, fournissant ainsi une base pratique pour choisir un traitement et d\u00e9terminer quels param\u00e8tres surveiller.<\/p><\/div><\/section><section class=\"ccr-section\" id=\"case-section-2\"><h2>S\u00e9lection Northshore CK356N8C<\/h2><div><p>Le repr\u00e9sentant de Cestoil et les techniciens de la raffinerie ont examin\u00e9 les donn\u00e9es disponibles concernant l'exploitation et les mat\u00e9riaux. Leur \u00e9valuation a mis en \u00e9vidence des conditions caract\u00e9ristiques d'une corrosion par l'acide napht\u00e9nique dans la section de traitement \u00e0 haute temp\u00e9rature. La raffinerie a ensuite mis en \u0153uvre Northshore CK356N8C, l'inhibiteur de corrosion haute temp\u00e9rature sans phosphore de Cestoil .<\/p><p>La d\u00e9signation du produit est pertinente pour l'\u00e9valuation : le CK356N8C est la nuance utilis\u00e9e dans ce cas, et sa formulation sans phosphore fait partie de la fonction qui lui est attribu\u00e9e. Le r\u00e9sultat du traitement doit \u00eatre associ\u00e9 \u00e0 cette nuance et \u00e0 l'application document\u00e9e. Une raffinerie envisageant un autre inhibiteur ou une section diff\u00e9rente de son unit\u00e9 doit \u00e9valuer les conditions du flux correspondant ainsi que les exigences en aval.<\/p><\/div><\/section><section class=\"ccr-section\" id=\"case-section-3\"><h2>Traitement appuy\u00e9 par un suivi technique<\/h2><div><p>Le programme a d\u00e9but\u00e9 par une phase de traitement initiale et s'est poursuivi par une p\u00e9riode de traitement et de surveillance d'un an. L'\u00e9quipe a suivi l'indicateur de teneur en fer en tenant compte de l'acidit\u00e9 du brut et des conditions d'exploitation. Ces donn\u00e9es ont servi de base pour analyser la r\u00e9ponse initiale, tout en veillant \u00e0 maintenir une attention soutenue sur le programme global de gestion de la corrosion.<\/p><p>La source fait \u00e9tat d'une p\u00e9riode initiale de 15 jours avant la baisse observ\u00e9e de l'indicateur de teneur en fer. Il s'agit d'une observation propre \u00e0 cette application ; ce d\u00e9lai ne constitue pas une r\u00e9f\u00e9rence universelle permettant de pr\u00e9voir la m\u00eame r\u00e9action dans une autre raffinerie. Il convient de prendre en compte les diff\u00e9rences relatives aux flux concern\u00e9s, au profil de temp\u00e9rature, \u00e0 la m\u00e9tallurgie et \u00e0 l'historique d'exploitation lors de l'\u00e9laboration du plan de surveillance et de l'\u00e9valuation d'un nouveau programme de traitement.<\/p><\/div><\/section><section class=\"ccr-section ccr-result\" id=\"case-section-4\"><h2>R\u00e9sultat rapport\u00e9 : un indicateur de fer inf\u00e9rieur de 83 %<\/h2><div><p>Ce cas fait \u00e9tat d'une baisse de 83 % de l'indicateur de teneur en fer surveill\u00e9 apr\u00e8s le traitement initial. L'indice d'acidit\u00e9 est demeur\u00e9 relativement stable sur la p\u00e9riode consid\u00e9r\u00e9e. L'examen conjoint de ces deux observations fournit \u00e0 la raffinerie davantage de contexte que la simple \u00e9volution de la teneur en fer, car une variation de l'acidit\u00e9 de la charge aurait pu compliquer la comparaison.<\/p><p>La teneur en fer du flux constitue un indicateur indirect des conditions de corrosion. Le pourcentage indiqu\u00e9 refl\u00e8te donc une variation de cet indicateur, et non une mesure directe d'une r\u00e9duction de 83 % du taux de corrosion. L'importance op\u00e9rationnelle de ce cas doit \u00eatre \u00e9valu\u00e9e en tenant compte des conditions d'\u00e9chantillonnage ainsi que des rapports d'inspection ou autres donn\u00e9es de suivi de la corrosion de la raffinerie. Ces informations compl\u00e9mentaires permettent d'\u00e9tablir un lien entre la r\u00e9ponse au traitement chimique et l'\u00e9tat des \u00e9quipements.<\/p><\/div><\/section><section class=\"ccr-section\" id=\"case-section-5\"><h2>Maintenir l'alignement de l'\u00e9valuation sur le panier de bruts<\/h2><div><p>Cet exemple met en \u00e9vidence l'int\u00e9r\u00eat d'une \u00e9valuation technique pr\u00e9alable \u00e0 l'application du produit, ainsi que d'un suivi ult\u00e9rieur. Pour toute autre raffinerie, des modifications de la charge de brut ou des conditions d'exploitation devraient inciter \u00e0 r\u00e9examiner les flux concern\u00e9s et l'ad\u00e9quation du traitement. L'objectif est de maintenir l'ad\u00e9quation du programme avec les conditions r\u00e9elles de traitement, plut\u00f4t que de supposer qu'une tendance favorable initiale r\u00e9soudra toutes les questions op\u00e9rationnelles ult\u00e9rieures.<\/p><p>Il est utile d'examiner des aspects tels que le point de pr\u00e9l\u00e8vement du fer, la coh\u00e9rence de la m\u00e9thode et du moment de l'\u00e9chantillonnage, ainsi que la corr\u00e9lation entre l'\u00e9volution observ\u00e9e et la temp\u00e9rature ou l'acidit\u00e9 du flux. En associant ces observations \u00e0 la m\u00e9tallurgie des \u00e9quipements et \u00e0 l'historique de la corrosion, l'\u00e9quipe technique peut d\u00e9terminer quelles variations justifient une investigation approfondie et quelles donn\u00e9es compl\u00e9mentaires permettraient d'affiner l'\u00e9valuation du traitement.<\/p><\/div><\/section><section class=\"ccr-section\" id=\"case-section-6\"><h2>\u00c9valuation de la valeur op\u00e9rationnelle<\/h2><div><p>Le r\u00e9sultat rapport\u00e9 confirme le r\u00f4le du CK356N8C dans le programme de traitement des bruts tr\u00e8s acides mis en \u0153uvre par la raffinerie. Pour un exploitant confront\u00e9 \u00e0 une situation analogue, ce cas constitue une r\u00e9f\u00e9rence en mati\u00e8re de combinaison entre le choix de l'inhibiteur et l'\u00e9valuation technique ainsi que le suivi sur site. Il s'av\u00e8re particuli\u00e8rement utile lorsque des taux de fer \u00e9lev\u00e9s dans le flux suscitent des interrogations n\u00e9cessitant un examen conjoint avec les donn\u00e9es historiques des \u00e9quipements.<\/p><p>Le r\u00e9sum\u00e9 disponible n'attribue pas de valeur mon\u00e9taire aux remplacements ou aux temps d'arr\u00eat \u00e9vit\u00e9s. Ces avantages n\u00e9cessitent des donn\u00e9es v\u00e9rifi\u00e9es sur l'\u00e9tat des \u00e9quipements et l'historique d'exploitation, ainsi que des informations sur les co\u00fbts des produits chimiques et des services. Une \u00e9valuation comparable permet de d\u00e9finir d\u00e8s le d\u00e9part les questions pertinentes relatives aux co\u00fbts, tout en fondant l'analyse de la performance sur des indicateurs r\u00e9ellement mesur\u00e9s et sur les inspections dont dispose la raffinerie.<\/p><\/div><\/section><section class=\"ccr-request\" id=\"case-report\"><h2>Examinez le cas avec votre \u00e9quipe charg\u00e9e de la corrosion.<\/h2><p>Demandez un examen technique pour discuter de l'\u00e9volution de la teneur en fer, de la p\u00e9riode de traitement initiale ainsi que de l'\u00e9valuation de la temp\u00e9rature et de la m\u00e9tallurgie justifiant l'utilisation du CK356N8C. Des relev\u00e9s repr\u00e9sentatifs de l'acidit\u00e9, les temp\u00e9ratures pertinentes des flux, les d\u00e9tails d'\u00e9chantillonnage et l'historique des inspections aideront Cestoil \u00e0 \u00e9valuer le lien avec votre probl\u00e9matique op\u00e9rationnelle. Les documents relatifs \u00e0 ce dossier ant\u00e9rieur sont soumis \u00e0 v\u00e9rification et \u00e0 disponibilit\u00e9 ; l'\u00e9quipe pourra confirmer le contenu du rapport actuel lors de l'examen de votre demande.<\/p><a class=\"ccr-button\" href=\"https:\/\/www.cestoil.com\/fr\/demander-une-etude-de-cas\/?case=1705\">Demander l'\u00e9tude de cas compl\u00e8te<\/a><p class=\"ccr-small\" style=\"margin-top:16px\">Les demandes sont examin\u00e9es avant la publication des rapports.<\/p><\/section><p class=\"ccr-small\">Source : R\u00e9sum\u00e9 de l'\u00e9tude de cas de la raffinerie Cestoil Northshore CK356N8C ; programme de traitement de p\u00e9trole brut \u00e0 forte acidit\u00e9 faisant l'objet d'un suivi.<\/p><nav class=\"ccr-links\" aria-label=\"Pages connexes\"><a href=\"\/fr\/applications-des-produits\/solutions-de-procedes-de-raffinage\/\">D\u00e9couvrez les solutions de proc\u00e9d\u00e9s de raffinage<\/a><a href=\"\/fr\/etudes-de-cas\/\">Toutes les \u00e9tudes de cas<\/a><\/nav><\/article>\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Northshore CK356N8C a soutenu le programme de gestion de la corrosion d'une raffinerie lors du traitement de p\u00e9trole brut \u00e0 forte acidit\u00e9.<\/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-1705","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 CK356N8C supported a refinery\u2019s corrosion-management program during high-acid crude processing. 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