{"id":1000008682,"date":"2022-12-05T14:41:00","date_gmt":"2022-12-05T13:41:00","guid":{"rendered":"https:\/\/forum-engagement.org\/?p=1000008682"},"modified":"2022-12-01T14:43:33","modified_gmt":"2022-12-01T13:43:33","slug":"economie-circulaire-recycler-et-valoriser-nos-coproduits","status":"publish","type":"post","link":"https:\/\/forum-engagement.org\/2024\/economie-circulaire-recycler-et-valoriser-nos-coproduits\/","title":{"rendered":"\u00c9conomie circulaire : recycler et valoriser nos coproduits"},"content":{"rendered":"\n<p>La fabrication d\u2019acier, comme toute activit\u00e9 industrielle, g\u00e9n\u00e8re des r\u00e9sidus de production de natures diverses. ArcelorMittal agit au quotidien pour une meilleure gestion et valorisation de ces d\u00e9chets et r\u00e9sidus, qui peuvent \u00eatre r\u00e9utilis\u00e9s sur nos sites industriels, devenir des mati\u00e8res premi\u00e8res pour d\u2019autres industries, ou \u00eatre utilis\u00e9s de fa\u00e7on judicieuse.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Le recyclage d\u2019acier, le symbole m\u00eame de l\u2019\u00e9conomie circulaire&nbsp;<\/h2>\n\n\n\n<p>ArcelorMittal est le premier recycleur d\u2019acier de France. Les sites de production d\u2019acier d\u2019ArcelorMittal recyclent dans le processus de fabrication les propres d\u00e9chets de production d\u2019ArcelorMittal ou de ses clients, mais aussi les emballages m\u00e9nagers, les v\u00e9hicules et navires en fin de vie, les mat\u00e9riaux de construction de b\u00e2timents\u2026<\/p>\n\n\n\n<p>Ce fonctionnement en \u00e9conomie circulaire est rendu possible par les caract\u00e9ristiques de l\u2019acier, qui se r\u00e9cup\u00e8re facilement et peut se recycler \u00e0 l\u2019infini sans perdre ses propri\u00e9t\u00e9s. Cela permet de consommer moins de mati\u00e8res premi\u00e8res fossiles et d\u2019\u00e9mettre moins de CO<sub>2<\/sub>.<\/p>\n\n\n\n<p><a href=\"https:\/\/france.arcelormittal.com\/engagements\/environnement\/neutralite-carbone\/recyclage\">D\u00e9velopper le recyclage d\u2019acier pour r\u00e9duire le CO<sub>2<\/sub><\/a><\/p>\n\n\n\n<figure class=\"wp-block-image size-medium\"><img fetchpriority=\"high\" decoding=\"async\" width=\"450\" height=\"338\" src=\"https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/0064fd6f786678033bcb3ef7388f34-450x338.webp\" alt=\"\" class=\"wp-image-1000008683\" srcset=\"https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/0064fd6f786678033bcb3ef7388f34-450x338.webp 450w, https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/0064fd6f786678033bcb3ef7388f34-1024x768.webp 1024w, https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/0064fd6f786678033bcb3ef7388f34-768x576.webp 768w, https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/0064fd6f786678033bcb3ef7388f34.webp 1472w\" sizes=\"(max-width: 450px) 100vw, 450px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Quand le coproduit du haut-fourneau devient un mat\u00e9riau de construction bas carbone&nbsp;<\/h2>\n\n\n\n<p>L\u2019un des principaux coproduits de la fabrication d\u2019acier est devenu une mati\u00e8re premi\u00e8re pour une autre industrie. Au travers d\u2019Ecocem France, sa coentreprise avec Ecocem Materials, ArcelorMittal valorise le laitier, un mat\u00e9riau produit par les hauts-fourneaux lors de la fabrication de la fonte. Ce laitier est r\u00e9cup\u00e9r\u00e9, finement broy\u00e9 dans les granulateurs d\u2019Ecocem France \u00e0 Fos-sur-Mer et Dunkerque puis s\u00e9ch\u00e9.<\/p>\n\n\n\n<figure class=\"wp-block-image size-medium\"><img decoding=\"async\" width=\"450\" height=\"253\" src=\"https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/8faa7fab422f32a2998de8855dabb5-450x253.webp\" alt=\"\" class=\"wp-image-1000008684\" srcset=\"https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/8faa7fab422f32a2998de8855dabb5-450x253.webp 450w, https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/8faa7fab422f32a2998de8855dabb5-1024x577.webp 1024w, https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/8faa7fab422f32a2998de8855dabb5-768x433.webp 768w, https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/8faa7fab422f32a2998de8855dabb5.webp 1472w\" sizes=\"(max-width: 450px) 100vw, 450px\" \/><\/figure>\n\n\n\n<p>A l\u2019arriv\u00e9e, le laitier moulu Ecocem, un liant hydraulique bas carbone, peut \u00eatre utilis\u00e9 en substitution du ciment pour produire des b\u00e9tons bas carbone tr\u00e8s performants. Directement issu de l\u2019\u00e9conomie circulaire, ce laitier moulu est \u00e9conome en ressources naturelles et d\u00e9gage lors de sa production en moyenne 16 kilos de CO<sub>2<\/sub>&nbsp;par tonne, soit 45 fois moins que le ciment traditionnel.<\/p>\n\n\n\n<p><a href=\"https:\/\/ecocem.fr\/produits\/laitier-moulu\/\" rel=\"noreferrer noopener\" target=\"_blank\">En savoir plus sur le laitier moulu Ecocem<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">En Loz\u00e8re et dans le Nord, la chaleur de l\u2019usine chauffe la ville&nbsp;<\/h2>\n\n\n\n<p>R\u00e9cup\u00e9rer la chaleur produite par les usines, c\u2019est permettre aux communaut\u00e9s riveraines de r\u00e9aliser d\u2019importantes \u00e9conomies d\u2019\u00e9nergie et de r\u00e9duire leurs \u00e9missions de CO<sub>2<\/sub>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-medium\"><img decoding=\"async\" width=\"450\" height=\"370\" src=\"https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/117f3d7d97c227340e39b81adb2cec-450x370.webp\" alt=\"\" class=\"wp-image-1000008685\" srcset=\"https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/117f3d7d97c227340e39b81adb2cec-450x370.webp 450w, https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/117f3d7d97c227340e39b81adb2cec-768x631.webp 768w, https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/117f3d7d97c227340e39b81adb2cec.webp 920w\" sizes=\"(max-width: 450px) 100vw, 450px\" \/><\/figure>\n\n\n\n<p>A Saint-Ch\u00e9ly-d\u2019Apcher (Loz\u00e8re), la chaleur g\u00e9n\u00e9r\u00e9e par les fours de recuit d\u2019acier d\u2019ArcelorMittal est valoris\u00e9e depuis 2018 pour le r\u00e9seau de chauffage de la ville et pour les besoins de l\u2019usine (production et chauffage). Des \u00e9changeurs de chaleur, raccordements et automatismes captent jusqu\u2019\u00e0 4,8 m\u00e9gawatts de chaleur. Cette \u00e9nergie est distribu\u00e9e jusqu\u2019aux points d\u2019usage gr\u00e2ce \u00e0 un r\u00e9seau de 1,2 kilom\u00e8tre et couvre des besoins \u00e9nerg\u00e9tiques qui correspondent \u00e0 la consommation d\u2019environ 1\u202f150 logements.<\/p>\n\n\n\n<p>Depuis les ann\u00e9es 1980, le site ArcelorMittal de Dunkerque partage son \u00e9nergie r\u00e9siduelle avec la ville de Dunkerque et maintenant avec celle de Grande-Synthe. Sur les deux cha\u00eenes d\u2019agglom\u00e9ration de l\u2019usine, o\u00f9 le m\u00e9lange de minerais est port\u00e9 \u00e0 haute temp\u00e9rature, ArcelorMittal r\u00e9cup\u00e8re la chaleur qui \u00e9tait perdue auparavant. Cette chaleur est ensuite envoy\u00e9e au r\u00e9seau municipal de Dunkerque et chauffe 6\u202f000 logements ainsi que la piscine municipale, l\u2019h\u00f4pital, des \u00e9coles\u2026 En 2020, ce r\u00e9seau a \u00e9t\u00e9 doubl\u00e9 pour desservir \u00e9galement la ville de Grande-Synthe\u202f&nbsp;: la polyclinique, des immeubles d\u2019habitations, ainsi que des ateliers et des bureaux municipaux en b\u00e9n\u00e9ficient, soit l\u2019\u00e9quivalent de 3 000 logements.<\/p>\n\n\n\n<p><strong>A lire\u00a0:<\/strong>\u00a0<a href=\"https:\/\/france.arcelormittal.com\/engagements\/environnement\/actualites\/arcelormittal-annonce-la-creation-d-un-nouveau-reseau-de-chaleur-a-dunkerque\">Le r\u00e9seau de chaleur li\u00e9e \u00e0 l\u2019usine ArcelorMittal de Dunkerque double de taille<\/a><\/p>\n\n\n\n<p><strong>Les gaz sid\u00e9rurgiques deviennent de l\u2019\u00e9lectricit\u00e9\u00a0<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-medium\"><img loading=\"lazy\" decoding=\"async\" width=\"450\" height=\"305\" src=\"https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/6eb163183b0b64c027f609d1af1129-450x305.webp\" alt=\"\" class=\"wp-image-1000008686\" srcset=\"https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/6eb163183b0b64c027f609d1af1129-450x305.webp 450w, https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/6eb163183b0b64c027f609d1af1129-1024x694.webp 1024w, https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/6eb163183b0b64c027f609d1af1129-768x520.webp 768w, https:\/\/forum-engagement.org\/2024\/wp-content\/uploads\/2022\/12\/6eb163183b0b64c027f609d1af1129.webp 1472w\" sizes=\"(max-width: 450px) 100vw, 450px\" \/><\/figure>\n\n\n\n<p>Sur le site ArcelorMittal de Dunkerque, les gaz des hauts-fourneaux, de l\u2019aci\u00e9rie et de la cokerie sont envoy\u00e9s vers la centrale \u00e9nerg\u00e9tique du site, o\u00f9 ils g\u00e9n\u00e8rent de l\u2019\u00e9lectricit\u00e9. L\u2019\u00e9lectricit\u00e9 produite dans cette centrale couvre 100&nbsp;% des besoins du site ArcelorMittal de Dunkerque et l\u2019exc\u00e9dent est revendu sur le r\u00e9seau.<\/p>\n\n\n\n<p>Les 4,7 milliards de m\u00e8tres cubes de gaz sid\u00e9rurgiques trait\u00e9s par an produisent ainsi environ 200 m\u00e9gawatts \u00e9lectriques, soit l\u2019\u00e9quivalent de la consommation d\u2019une ville de 200 000 habitants.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La fabrication d\u2019acier, comme toute activit\u00e9 industrielle, g\u00e9n\u00e8re des r\u00e9sidus de production de natures diverses. ArcelorMittal agit au quotidien pour une meilleure gestion et valorisation de ces d\u00e9chets et r\u00e9sidus, qui peuvent \u00eatre r\u00e9utilis\u00e9s sur nos sites industriels, devenir des mati\u00e8res premi\u00e8res pour d\u2019autres industries, ou \u00eatre utilis\u00e9s de fa\u00e7on judicieuse. Le recyclage d\u2019acier, le [&hellip;]<\/p>\n","protected":false},"author":76,"featured_media":1000008688,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[155],"tags":[],"class_list":{"0":"post-1000008682","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-engagements-pour-une-strategie-ecologique-performante"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u00c9conomie circulaire : recycler et valoriser nos coproduits | Forum Engagement<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u00c9conomie circulaire : recycler et valoriser nos coproduits | Forum Engagement\" \/>\n<meta property=\"og:description\" content=\"La fabrication d\u2019acier, comme toute activit\u00e9 industrielle, g\u00e9n\u00e8re des r\u00e9sidus de production de natures diverses. ArcelorMittal agit au quotidien pour une meilleure gestion et valorisation de ces d\u00e9chets et r\u00e9sidus, qui peuvent \u00eatre r\u00e9utilis\u00e9s sur nos sites industriels, devenir des mati\u00e8res premi\u00e8res pour d\u2019autres industries, ou \u00eatre utilis\u00e9s de fa\u00e7on judicieuse. 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