{"id":2190,"date":"2026-09-09T16:53:17","date_gmt":"2026-09-09T21:53:17","guid":{"rendered":"https:\/\/www.cestoil.com\/?page_id=2190"},"modified":"2026-09-12T14:49:44","modified_gmt":"2026-09-12T19:49:44","slug":"etude-de-cas-sur-le-procede-polysynaid-pe","status":"publish","type":"page","link":"https:\/\/www.cestoil.com\/fr\/case-studies\/polysynaid-pe-process-case-study\/","title":{"rendered":"Polysynaid 8000 : Contr\u00f4le de l'\u00e9lectricit\u00e9 statique dans la production de PEHD en phase gazeuse"},"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 polym\u00e8res<\/nav><div class=\"ccr-hero\"><div><p class=\"ccr-label\">Vue d'ensemble de l'\u00e9tude de cas<\/p><h1>Polysynaid 8000 : Contr\u00f4le de l'\u00e9lectricit\u00e9 statique dans la production de PEHD en phase gazeuse<\/h1><p class=\"ccr-lead\">L'homologation d'une nouvelle source d'agent antistatique ne se limite pas \u00e0 l'observation d'une p\u00e9riode de calme au niveau des sondes \u00e9lectrostatiques du r\u00e9acteur. Un producteur de PEHD en phase gazeuse a \u00e9valu\u00e9 Polysynaid 8000 lors de changements de grade, de changements de lots de catalyseur et d'une interruption de l'approvisionnement en \u00e9thyl\u00e8ne. L'ing\u00e9nieur de Cestoil est rest\u00e9 sur place pendant toute la dur\u00e9e de l'essai, collaborant avec le personnel de l'usine pour analyser les \u00e9v\u00e9nements op\u00e9rationnels et ajuster le traitement. Le rapport du service technique fait \u00e9tat d'une \u00e9lectricit\u00e9 statique ma\u00eetrisable ainsi que d'indicateurs stables concernant le r\u00e9acteur et la poudre durant la transition progressive vers le nouveau produit, en m\u00e9lange avec l'agent antistatique utilis\u00e9 pr\u00e9c\u00e9demment.<\/p><a class=\"ccr-button\" href=\"https:\/\/www.cestoil.com\/fr\/demander-une-etude-de-cas\/?case=2190\">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=2190\" aria-label=\"Demandez l&#039;\u00e9tude de cas compl\u00e8te Polysynaid 8000\"><img loading=\"lazy\" src=\"https:\/\/www.cestoil.com\/wp-content\/uploads\/case-2190-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 Polysynaid 8000\"><\/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\">Polysynaid 8000<\/p><strong>R\u00e9acteur maintenu stable malgr\u00e9 les variations de fonctionnement<\/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>Pourquoi le producteur voulait une seconde source<\/h2><div><p>L'usine exploitait une unit\u00e9 de production de PEHD en phase gazeuse sur lit fluidis\u00e9 utilisant un catalyseur au chrome et employait un agent antistatique import\u00e9 depuis le d\u00e9marrage. Elle visait \u00e0 homologuer une source d'approvisionnement alternative et \u00e0 r\u00e9examiner les co\u00fbts de traitement, tout en pr\u00e9servant la stabilit\u00e9 du r\u00e9acteur, la productivit\u00e9 du catalyseur et la qualit\u00e9 de la poudre. Ces imp\u00e9ratifs rendaient indispensable une \u00e9valuation contr\u00f4l\u00e9e en usine pour \u00e9tayer sa d\u00e9cision.<\/p><p>L'\u00e9lectricit\u00e9 statique est un facteur important, car les fines charg\u00e9es peuvent adh\u00e9rer aux parois du r\u00e9acteur et contribuer \u00e0 la formation de plaques ou d'agglom\u00e9rats perturbant le fonctionnement. L'usine a donc d\u00fb aller au-del\u00e0 des simples mesures d'\u00e9lectricit\u00e9 statique. Le comportement de la plaque de distribution, les signes de formation d'agglom\u00e9rats, les performances de d\u00e9chargement et les propri\u00e9t\u00e9s de la poudre constituaient autant d'\u00e9l\u00e9ments permettant d'\u00e9valuer si le programme de substitution donnait les r\u00e9sultats escompt\u00e9s.<\/p><\/div><\/section><section class=\"ccr-section\" id=\"case-section-2\"><h2>Une introduction progressive de Polysynaid 8000<\/h2><div><p>Polysynaid 8000 est l'agent antistatique macromol\u00e9culaire de Cestoil destin\u00e9 \u00e0 la transformation du poly\u00e9thyl\u00e8ne. L'usine ne disposant que d'un seul r\u00e9servoir pour l'agent antistatique, l'essai a consist\u00e9 \u00e0 r\u00e9aliser un m\u00e9lange progressif dans le r\u00e9servoir existant plut\u00f4t qu'\u00e0 proc\u00e9der \u00e0 un remplacement complet et imm\u00e9diat. La proportion de Polysynaid 8000 a \u00e9t\u00e9 augment\u00e9e par paliers, tandis que l'\u00e9quipe d'exploitation surveillait la r\u00e9action du r\u00e9acteur.<\/p><p>Il est important de tenir compte de cette configuration lors de l'interpr\u00e9tation des r\u00e9sultats. Le produit initial a \u00e9t\u00e9 maintenu dans le m\u00e9lange antistatique tout au long de l'essai document\u00e9. L'\u00e9valuation favorable du Polysynaid 8000 pr\u00e9sent\u00e9e dans le rapport doit donc \u00eatre consid\u00e9r\u00e9e \u00e0 la lumi\u00e8re des proportions de m\u00e9lange relev\u00e9es et de l'historique d'exploitation. La p\u00e9riode observ\u00e9e t\u00e9moigne du programme de substitution suivi ; il ne s'agit pas d'un essai complet portant sur l'utilisation exclusive Polysynaid 8000 .<\/p><\/div><\/section><section class=\"ccr-section\" id=\"case-section-3\"><h2>Intervention sur site lors de changements r\u00e9els de conditions d'exploitation<\/h2><div><p>L'essai s'est d\u00e9roul\u00e9 de d\u00e9cembre 2023 \u00e0 janvier 2024 et a port\u00e9 sur plusieurs grades de PEHD ainsi que sur diff\u00e9rents lots de catalyseur au chrome. Au cours de l'\u00e9valuation, l'arr\u00eat de l'unit\u00e9 de production d'\u00e9thyl\u00e8ne en amont a n\u00e9cessit\u00e9 une modification de l'alimentation et une r\u00e9duction du rythme de production, suivies d'un retour au r\u00e9gime d'exploitation initial. L'alimentation initiale suivant le red\u00e9marrage de l'unit\u00e9 en amont a \u00e9galement engendr\u00e9 un probl\u00e8me op\u00e9rationnel li\u00e9 \u00e0 la pr\u00e9sence d'impuret\u00e9s.<\/p><p>L'ing\u00e9nieur de Cestoil est rest\u00e9 sur le site pendant toute la dur\u00e9e de l'essai. L'\u00e9quipe a analys\u00e9 les variations de l'\u00e9lectricit\u00e9 statique en les comparant aux changements de grade, aux lots de catalyseur, aux conditions d'alimentation et au rythme de production, tout en ajustant le dosage de l'agent antistatique en cons\u00e9quence. Cette \u00e9valuation fond\u00e9e sur les \u00e9v\u00e9nements \u00e9tait au c\u0153ur de l'essai : il \u00e9tait n\u00e9cessaire de comprendre toute hausse de l'\u00e9lectricit\u00e9 statique dans le contexte du proc\u00e9d\u00e9 avant que l'\u00e9quipe ne puisse juger de l'efficacit\u00e9 du traitement.<\/p><\/div><\/section><section class=\"ccr-section\" id=\"case-section-4\"><h2>Surveillance du r\u00e9acteur et de la poudre<\/h2><div><p>L'\u00e9lectricit\u00e9 statique a \u00e9t\u00e9 surveill\u00e9e au niveau de trois sondes du r\u00e9acteur. Le dispositif de surveillance plus large comprenait la productivit\u00e9 du catalyseur, la temp\u00e9rature et les diff\u00e9rences de pression au niveau de la plaque de distribution, les indicateurs de temp\u00e9rature du r\u00e9acteur, les d\u00e9tecteurs d'agglom\u00e9rats, la densit\u00e9 du lit et les performances de refroidissement. L'\u00e9quipe a \u00e9galement suivi le comportement de la d\u00e9charge ainsi que l'intensit\u00e9 du courant des brise-agglom\u00e9rats et des tamis.<\/p><p>Les donn\u00e9es relatives \u00e0 la poudre ont apport\u00e9 un \u00e9clairage suppl\u00e9mentaire. La granulom\u00e9trie, l'aspect des particules et le comportement \u00e0 l'\u00e9coulement ont \u00e9t\u00e9 \u00e9valu\u00e9s parall\u00e8lement au fonctionnement du r\u00e9acteur. Cette approche combin\u00e9e a permis \u00e0 l'\u00e9quipe technique de v\u00e9rifier si la ma\u00eetrise des indicateurs li\u00e9s \u00e0 l'\u00e9lectricit\u00e9 statique s'accompagnait d'un comportement acceptable du proc\u00e9d\u00e9 et du produit. Elle a \u00e9galement conf\u00e9r\u00e9 \u00e0 l'\u00e9tude une pertinence directe pour une d\u00e9cision de qualification concernant une unit\u00e9 de production en activit\u00e9, allant bien au-del\u00e0 d'une simple comparaison isol\u00e9e des performances d'agents antistatiques.<\/p><\/div><\/section><section class=\"ccr-section ccr-result\" id=\"case-section-5\"><h2>R\u00e9sultat rapport\u00e9 durant la transition de m\u00e9lange<\/h2><div><p>Le rapport du service technique indique que l'\u00e9lectricit\u00e9 statique est demeur\u00e9e dans une plage ma\u00eetrisable, les \u00e9carts ayant \u00e9t\u00e9 analys\u00e9s au regard d'\u00e9v\u00e9nements op\u00e9rationnels document\u00e9s. La productivit\u00e9 du catalyseur au chrome s'est maintenue au-dessus de 7 000 kg de polym\u00e8re par kilogramme de catalyseur, sans perte observ\u00e9e par rapport \u00e0 la r\u00e9f\u00e9rence habituelle durant l'essai. Les auteurs ont \u00e9galement not\u00e9 que le dispositif de contr\u00f4le de l'activit\u00e9 a emp\u00each\u00e9 de mesurer s\u00e9par\u00e9ment tout gain de productivit\u00e9 \u00e9ventuel.<\/p><p>Les relev\u00e9s concernant la plaque de distribution et les autres indicateurs du r\u00e9acteur sont demeur\u00e9s dans les plages de fonctionnement normales. Les observations issues du d\u00e9tecteur d'agglom\u00e9rats et de la surveillance du courant des \u00e9quipements n'ont r\u00e9v\u00e9l\u00e9 aucune tendance \u00e0 la formation d'agglom\u00e9rats, tandis que les donn\u00e9es relatives \u00e0 la poudre ont mis en \u00e9vidence des particules r\u00e9guli\u00e8res et fluides, sans agglom\u00e9rats apparents. Ces observations op\u00e9rationnelles sont favorables dans le cadre de la transition de m\u00e9lange surveill\u00e9e, le contenu r\u00e9siduel initial s'inscrivant dans le contexte du traitement.<\/p><\/div><\/section><section class=\"ccr-section\" id=\"case-section-6\"><h2>Ce qu'une \u00e9valuation fond\u00e9e sur une seconde source devrait \u00e9tablir<\/h2><div><p>L'objectif commercial du producteur visait notamment une r\u00e9duction des co\u00fbts de traitement, mais le rapport d'essai ne chiffre pas les \u00e9conomies r\u00e9alis\u00e9es. Une \u00e9valuation comparative doit mettre en relation la consommation et le co\u00fbt de l'agent antistatique avec des cadences de production, des grades et des conditions catalytiques \u00e9quivalents. La stabilit\u00e9 du r\u00e9acteur et les indicateurs relatifs au produit font \u00e9galement partie de cette \u00e9valuation, car le prix d'achat ne refl\u00e8te pas \u00e0 lui seul la valeur du programme.<\/p><p>Le rapport recommande d'anticiper les changements statiques pr\u00e9visibles lors de la planification du traitement. Pour une autre installation, cela implique d'examiner avec l'\u00e9quipe d'exploitation l'historique des transitions de grade, des remplacements de catalyseur et des perturbations de l'alimentation. La r\u00e9ponse et le dosage appropri\u00e9s restent sp\u00e9cifiques au site et doivent \u00eatre d\u00e9finis conform\u00e9ment aux proc\u00e9dures et aux exigences de surveillance propres au r\u00e9acteur.<\/p><\/div><\/section><section class=\"ccr-request\" id=\"case-report\"><h2>Visualisez les \u00e9v\u00e9nements op\u00e9rationnels \u00e0 l'origine du r\u00e9sultat.<\/h2><p>Demandez l'\u00e9tude de cas compl\u00e8te pour examiner l'\u00e9volution du m\u00e9lange, la plage de traitement, les tendances annot\u00e9es en mati\u00e8re d'\u00e9lectricit\u00e9 statique et les observations sur la poudre. Le rapport met en corr\u00e9lation les modifications op\u00e9rationnelles et les interventions de l'\u00e9quipe de terrain, aidant ainsi votre \u00e9quipe \u00e0 d\u00e9terminer les \u00e9l\u00e9ments probants requis pour une qualification comparable. Veuillez pr\u00e9ciser le type de r\u00e9acteur, le syst\u00e8me catalytique, le dispositif antistatique actuel et l'application envisag\u00e9e lors de votre demande. Cestoil examine les demandes avant de communiquer le PDF d\u00e9taill\u00e9.<\/p><a class=\"ccr-button\" href=\"https:\/\/www.cestoil.com\/fr\/demander-une-etude-de-cas\/?case=2190\">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 d'essai du service technique Cestoil , \u00e9tabli \u00e0 partir des tendances du syst\u00e8me de contr\u00f4le-commande (DCS) de l'usine et des donn\u00e9es de laboratoire (d\u00e9cembre 2023 \u2013 janvier 2024).<\/p><nav class=\"ccr-links\" aria-label=\"Pages connexes\"><a href=\"\/fr\/applications-des-produits\/solutions-de-polymeres\/\">D\u00e9couvrez les solutions polym\u00e8res<\/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>A gas-phase HDPE producer evaluated Polysynaid 8000 as an alternative antistat supply through a gradual substitution program.<\/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-2190","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 gas-phase HDPE producer evaluated Polysynaid 8000 as an alternative antistat supply through a gradual substitution program. 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