{"id":2509,"date":"2026-09-11T20:24:05","date_gmt":"2026-09-12T01:24:05","guid":{"rendered":"https:\/\/www.cestoil.com\/?page_id=2509"},"modified":"2026-09-14T17:12:48","modified_gmt":"2026-09-14T22:12:48","slug":"cendrage-de-la-boue-fcc-ces1490","status":"publish","type":"page","link":"https:\/\/www.cestoil.com\/fr\/case-studies\/ces1490-fcc-slurry-de-ashing\/","title":{"rendered":"Northshore CES1490 : D\u00e9centrage des boues de FCC"},"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 Lato,Arial,sans-serif}\n.ccr-case *{box-sizing:border-box}.ccr-case h1,.ccr-case h2{color:#253d4c;font-family:inherit;font-weight:700;text-transform:none;letter-spacing:normal}\n.ccr-case h1{font-size:clamp(32px,4vw,46px);line-height:1.18;max-width:980px;margin:16px 0 24px}\n.ccr-case h2{font-size:27px;line-height:1.3;margin:0 0 18px}.ccr-case p{margin:0 0 18px}.ccr-case p:last-child{margin-bottom:0}\n.ccr-case a{color:#755c23;text-underline-offset:3px}.ccr-case .ccr-breadcrumb{font-size:14px;color:#59676e;margin-bottom:28px}\n.ccr-case .ccr-label{font-size:13px;line-height:1.5;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:#755c23;margin-bottom:10px}\n.ccr-case .ccr-lead{font-size:21px;line-height:1.65;max-width:940px;margin-bottom:24px}\n.ccr-case .ccr-button{display:inline-block;background:#293f4e;color:#fff;padding:13px 24px;text-decoration:none;border-radius:3px;font-size:16px;line-height:1.5;font-weight:700}\n.ccr-case .ccr-button:hover{background:#385667}.ccr-case a:focus-visible{outline:3px solid #196aa3;outline-offset:4px}\n.ccr-case .ccr-highlight{margin:32px 0 24px;background:#f4f5f7;border-left:4px solid #c5a356;padding:24px 28px}\n.ccr-case .ccr-highlight strong{font-size:25px;line-height:1.35;color:#253d4c;display:block}.ccr-case .ccr-jump{display:flex;flex-wrap:wrap;gap:12px 24px;font-size:15px;border-bottom:1px solid #d8dde0;padding:0 0 24px}\n.ccr-case .ccr-section{display:grid;grid-template-columns:235px minmax(0,1fr);gap:42px;padding:34px 0;border-bottom:1px solid #e0e4e7;scroll-margin-top:130px}\n.ccr-case .ccr-section h2{font-size:24px}.ccr-case .ccr-result{border-top:3px solid #c5a356;border-bottom:1px solid #d8dde0;background:#fafaf8;padding:28px;margin:10px -28px}\n.ccr-case .ccr-request{padding:32px;background:#f4f5f7;margin:34px 0 24px;scroll-margin-top:130px}.ccr-case .ccr-request>p{max-width:860px;margin-bottom:22px}\n.ccr-case .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{width:178px;max-width:100%;margin:0 auto;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}\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\" data-preview-version=\"compact-v2\"><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><div class=\"ccr-hero\"><div><p class=\"ccr-label\">Vue d'ensemble de l'\u00e9tude de cas<\/p><h1>Northshore CES1490 : D\u00e9centrage des boues de FCC<\/h1><p class=\"ccr-lead\">Une raffinerie devait r\u00e9duire la teneur en cendres de l'huile de \u00ab slurry \u00bb (r\u00e9sidu lourd) issue du craquage catalytique fluide (FCC) avant de la r\u00e9injecter dans le proc\u00e9d\u00e9. Northshore CES1490 a \u00e9t\u00e9 \u00e9valu\u00e9 au moyen d'essais de d\u00e9cantation en laboratoire et d'un programme de suivi en r\u00e9servoir, avec pr\u00e9l\u00e8vement d'\u00e9chantillons \u00e0 diff\u00e9rents niveaux pour analyser l'huile clarifi\u00e9e. Le client a constat\u00e9 une r\u00e9duction significative de la teneur en cendres apr\u00e8s la mise en place du programme de traitement r\u00e9vis\u00e9. Ce cas illustre le lien entre le choix du produit chimique, le suivi sur site et une m\u00e9thode d'\u00e9chantillonnage convenue, pour r\u00e9pondre \u00e0 un objectif concret de recyclage du \u00ab slurry \u00bb.<\/p><a class=\"ccr-button\" href=\"https:\/\/www.cestoil.com\/fr\/demander-une-etude-de-cas\/?case=2509\">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=2509\" aria-label=\"Demandez l&#039;\u00e9tude de cas compl\u00e8te Northshore CES1490\"><img loading=\"lazy\" src=\"https:\/\/www.cestoil.com\/wp-content\/uploads\/case-2509-compact-preview-v2.webp\" width=\"160\" height=\"208\" decoding=\"async\" alt=\"Aper\u00e7u r\u00e9duit d&#039;une page du rapport d&#039;\u00e9tude de cas Northshore CES1490\"><\/a><p class=\"ccr-preview-caption\"><strong>PDF illustr\u00e9 de 2 pages<\/strong>Rapport complet disponible sur approbation.<\/p><\/aside><\/div><aside class=\"ccr-highlight\" aria-label=\"Observation cl\u00e9\"><p class=\"ccr-label\">Northshore CES1490<\/p><strong>R\u00e9duction de la teneur en cendres du slurry pour le recyclage au FCC<\/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-5\">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 probl\u00e8me du recyclage de la suspension<\/h2><div><p>La raffinerie recueillait le *slurry* (r\u00e9sidu lourd) provenant de deux unit\u00e9s de craquage catalytique en lit fluidis\u00e9 (FCC) dans un r\u00e9servoir de r\u00e9ception et renvoyait l'huile vers le proc\u00e9d\u00e9 de craquage catalytique. Les fines de catalyseur pr\u00e9sentes dans le *slurry* g\u00e9n\u00e9raient une charge en cendres ; or, l'objectif op\u00e9rationnel du client consistait notamment \u00e0 maintenir des performances acceptables en mati\u00e8re d'\u00e9missions de particules dans les fum\u00e9es lors du recyclage de ce produit. La raffinerie souhaitait am\u00e9liorer la qualit\u00e9 du *slurry* en utilisant ses syst\u00e8mes existants de r\u00e9ception et d'injection d'additifs.<\/p><p>Les crit\u00e8res d'acceptation portaient sur la zone d'huile exploitable du r\u00e9servoir, avec des pr\u00e9l\u00e8vements effectu\u00e9s aux niveaux sup\u00e9rieur, interm\u00e9diaire et inf\u00e9rieur, au-dessus du point de soutirage haut. Le temps de d\u00e9cantation et la plage attendue de teneur en mati\u00e8res solides \u00e0 l'entr\u00e9e \u00e9taient \u00e9galement pris en compte. L'installation disposait ainsi d'une base d\u00e9finie pour d\u00e9terminer si la boue trait\u00e9e convenait \u00e0 la fili\u00e8re pr\u00e9vue, plut\u00f4t que de juger le r\u00e9sultat sur la seule base d'un \u00e9chantillon de surface d'aspect propre.<\/p><\/div><\/section><section class=\"ccr-section\" id=\"case-section-2\"><h2>Le r\u00f4le du Northshore CES1490<\/h2><div><p>Northshore CES1490 est un adjuvant de d\u00e9cantation pour boues (slurry) propos\u00e9 par Cestoil . Dans cette application, il visait \u00e0 favoriser la s\u00e9paration des particules solides fines afin de permettre le soutirage de l'huile clarifi\u00e9e au-dessus des mati\u00e8res d\u00e9cant\u00e9es. La raffinerie a inject\u00e9 le produit de mani\u00e8re dos\u00e9e dans la conduite d'arriv\u00e9e des boues via son syst\u00e8me d'additivation existant, l'a m\u00e9lang\u00e9 aux boues entrantes et a laiss\u00e9 la s\u00e9paration s'op\u00e9rer dans le r\u00e9servoir de r\u00e9ception.<\/p><p>Le programme a \u00e9t\u00e9 \u00e9valu\u00e9 en tenant compte de la suspension r\u00e9elle et du dispositif de d\u00e9cantation disponible. L'apport de mati\u00e8res solides, l'injection des additifs et le fonctionnement du r\u00e9servoir ont tous influ\u00e9 sur le contexte dans lequel les r\u00e9sultats relatifs aux cendres ont \u00e9t\u00e9 analys\u00e9s. Pour un site comparable, la question essentielle est de savoir si le traitement permet d'atteindre la qualit\u00e9 requise compte tenu du temps de d\u00e9cantation et du syst\u00e8me de soutirage dont dispose la raffinerie.<\/p><\/div><\/section><section class=\"ccr-section\" id=\"case-section-3\"><h2>Suivi sur le terrain lorsque les premiers r\u00e9sultats se sont r\u00e9v\u00e9l\u00e9s insuffisants<\/h2><div><p>Les r\u00e9sultats initiaux obtenus dans le r\u00e9servoir n'\u00e9taient pas conformes \u00e0 la sp\u00e9cification convenue concernant la teneur en cendres. Cestoil a remplac\u00e9 le premier lot et a collabor\u00e9 avec l'usine pour r\u00e9aliser des essais de d\u00e9cantation en laboratoire avant la reprise du dosage. Ce d\u00e9roulement contribue \u00e0 la valeur technique du cas : la performance finale enregistr\u00e9e a \u00e9t\u00e9 obtenue apr\u00e8s une phase corrective et des essais de confirmation, et non gr\u00e2ce \u00e0 un succ\u00e8s ininterrompu d\u00e8s la premi\u00e8re application.<\/p><p>Les travaux en laboratoire ont permis de confirmer les conditions de traitement des boues de l'installation. Le suivi ult\u00e9rieur des r\u00e9servoirs a permis d'observer le d\u00e9roulement du programme lors des livraisons suivantes et durant l'exploitation hivernale. La distinction entre les r\u00e9sultats initiaux, la confirmation en laboratoire et les observations ult\u00e9rieures en r\u00e9servoir est maintenue dans le rapport complet, afin de permettre \u00e0 l'\u00e9quipe d'examen de suivre l'\u00e9volution de l'application.<\/p><\/div><\/section><section class=\"ccr-section\" id=\"case-section-4\"><h2>Mesure de la zone clarifi\u00e9e<\/h2><div><p>La raffinerie a \u00e9valu\u00e9 la teneur en cendres \u00e0 diff\u00e9rents niveaux du r\u00e9servoir et apr\u00e8s des p\u00e9riodes de d\u00e9cantation d\u00e9finies. Cette approche a permis de d\u00e9terminer si la zone utile du r\u00e9servoir s'\u00e9tait am\u00e9lior\u00e9e, plut\u00f4t que de se fonder sur un point de pr\u00e9l\u00e8vement unique et favorable. Les relev\u00e9s ult\u00e9rieurs incluaient des observations effectu\u00e9es aux niveaux sup\u00e9rieur, interm\u00e9diaire et inf\u00e9rieur, selon les donn\u00e9es disponibles pour chaque campagne d'\u00e9chantillonnage.<\/p><p>Le rapport indique \u00e9galement les mesures de mati\u00e8res solides aux c\u00f4t\u00e9s de celles des cendres dans certaines parties du registre d'exploitation. Ces valeurs doivent conserver leur d\u00e9signation d'origine : les cendres et les mati\u00e8res solides mesur\u00e9es sont des indicateurs de qualit\u00e9 apparent\u00e9s, mais ne constituent pas des r\u00e9sultats d'analyse interchangeables. Dans le cadre d'un programme comparable, il convient de s'entendre sur la m\u00e9thode d'analyse, les modalit\u00e9s d'\u00e9chantillonnage et le calcul d'acceptation avant le d\u00e9but du traitement, afin que l'exploitant et le fournisseur \u00e9valuent la performance sur la m\u00eame base.<\/p><\/div><\/section><section class=\"ccr-section ccr-result\" id=\"case-section-5\"><h2>R\u00e9sultat rapport\u00e9 : teneur en cendres de la boue nettement plus faible<\/h2><div><p>Le client a signal\u00e9 une teneur en cendres de la suspension de 0,26 \u00e0 0,30 % avant traitement et de 0,03 \u00e0 0,05 % lors de la comparaison des niveaux en r\u00e9servoir apr\u00e8s traitement. Suite \u00e0 la r\u00e9vision du programme et \u00e0 la confirmation en laboratoire, les relev\u00e9s ult\u00e9rieurs des r\u00e9servoirs ont satisfait au crit\u00e8re d'acceptation \u00e9tabli. Certaines observations ult\u00e9rieures \u00e9taient bien inf\u00e9rieures \u00e0 la cible. Le rapport indique les dates d'\u00e9chantillonnage et les niveaux n\u00e9cessaires pour comprendre ces comparaisons.<\/p><p>Les s\u00e9ries d'essais de d\u00e9cantation en laboratoire et les s\u00e9ries de suivi en r\u00e9servoir d\u00e9crivent des volets distincts de l'\u00e9valuation. Il convient de ne pas les amalgamer pour affirmer que chaque lot trait\u00e9 en r\u00e9servoir a donn\u00e9 le m\u00eame r\u00e9sultat dans les m\u00eames d\u00e9lais. Les observations ult\u00e9rieures du client concernant l'exploitation ont confort\u00e9 le choix de continuer \u00e0 utiliser le produit. Le rapport faisait \u00e9galement \u00e9tat de performances satisfaisantes en mati\u00e8re d'\u00e9missions de particules dans les gaz de combustion lors du recyclage de la suspension, sans toutefois fournir de pourcentage chiffr\u00e9 de r\u00e9duction des \u00e9missions pour ce r\u00e9sum\u00e9.<\/p><\/div><\/section><section class=\"ccr-section\" id=\"case-section-6\"><h2>Pertinence op\u00e9rationnelle pour une raffinerie<\/h2><div><p>Ce cas pr\u00e9sente une m\u00e9thode pratique pour \u00e9valuer si un r\u00e9servoir de suspension existant peut fournir un flux de recyclage plus appropri\u00e9. Il met l'accent sur la qualit\u00e9 de l'huile pouvant \u00eatre r\u00e9ellement soutir\u00e9e, sur le temps disponible pour la d\u00e9cantation et sur la n\u00e9cessit\u00e9 de suivre les variations de la teneur en solides \u00e0 l'entr\u00e9e. Les essais en laboratoire et le suivi en installation jouent un r\u00f4le compl\u00e9mentaire dans cette \u00e9valuation.<\/p><p>Le rapport ne chiffre pas les \u00e9conomies financi\u00e8res pour cette raffinerie. Une \u00e9valuation \u00e9conomique prendrait en compte le volume trait\u00e9, la consommation d'additifs, la valeur du recyclage envisag\u00e9 ou de la solution alternative de traitement, ainsi que toute contrainte op\u00e9rationnelle pertinente. La capacit\u00e9 des r\u00e9servoirs, le temps de d\u00e9cantation et les dispositifs d'\u00e9limination des solides devraient \u00e9galement \u00eatre compatibles avec le plan d'exploitation de la raffinerie. Ces \u00e9l\u00e9ments permettent de relier l'am\u00e9lioration constat\u00e9e au niveau des cendres \u00e0 une d\u00e9cision commerciale r\u00e9aliste.<\/p><\/div><\/section><section class=\"ccr-request\" id=\"case-report\"><h2>Examinez les \u00e9l\u00e9ments de preuve provenant du laboratoire et du r\u00e9servoir.<\/h2><p>Demandez l'\u00e9tude de cas compl\u00e8te pour examiner les essais de confirmation, les comparaisons selon les niveaux d'\u00e9chantillonnage, les dur\u00e9es de d\u00e9cantation et les relev\u00e9s ult\u00e9rieurs du r\u00e9servoir. Le document PDF d\u00e9taille \u00e9galement le traitement convenu et les crit\u00e8res d'acceptation. Veuillez indiquer les teneurs en cendres et en mati\u00e8res solides de votre boue, la configuration des r\u00e9servoirs, le temps de d\u00e9cantation disponible ainsi que l'usage pr\u00e9vu de l'huile clarifi\u00e9e, afin que Cestoil puisse \u00e9valuer la pertinence du cas avant de communiquer le rapport.<\/p><a class=\"ccr-button\" href=\"https:\/\/www.cestoil.com\/fr\/demander-une-etude-de-cas\/?case=2509\">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 : Rapport sur l'utilisation par les clients, d\u00e9partement des op\u00e9rations li\u00e9es aux produits p\u00e9troliers, octobre 2019 \u2013 mars 2020.<\/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 CES1490 a \u00e9t\u00e9 \u00e9valu\u00e9 au moyen d'essais de d\u00e9cantation en laboratoire et d'une surveillance des r\u00e9servoirs afin de soutenir le recyclage de l'huile de d\u00e9cantation (slurry oil) du proc\u00e9d\u00e9 FCC.<\/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-2509","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 CES1490 was evaluated with laboratory settling tests and tank monitoring to support FCC slurry-oil recycle. 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