{"id":367,"date":"2010-06-20T09:00:44","date_gmt":"2010-06-20T09:00:44","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/2010\/06\/20\/le-procede-de-bioethanol-cellulosique-de-poet-presente-un-remarquable-bilan-carbone\/"},"modified":"2012-07-12T12:16:42","modified_gmt":"2012-07-12T12:16:42","slug":"le-procede-de-bioethanol-cellulosique-de-poet-presente-un-remarquable-bilan-carbone","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2010\/06\/20\/le-procede-de-bioethanol-cellulosique-de-poet-presente-un-remarquable-bilan-carbone\/","title":{"rendered":"Le proc\u00e9d\u00e9 de bio\u00e9thanol cellulosique de Poet pr\u00e9sente un remarquable bilan carbone"},"content":{"rendered":"<p>&#160; <a href=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/6a00d83451b18369e20133f1821bdd970b-pi.jpg\"><img decoding=\"async\" alt=\"Fueling_revolution2[1]\" class=\"asset asset-image at-xid-6a00d83451b18369e20133f1821bdd970b \" src=\"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/files\/2012\/07\/6a00d83451b18369e20133f1821bdd970b-250wi.jpg\" style=\"width: 220px;margin: 0px 5px 5px 0px\" \/><\/a> Poet, premier producteur d&#039;alcool de ma\u00efs am\u00e9ricain conduit depuis 22 ans une politique industrielle remarquable, bas\u00e9e sur l&#039;existence de 26 usines agricoles s&#039;approvisionnant en ma\u00efs r\u00e9colt\u00e9 localement. Apr\u00e8s avoir r\u00e9duit ses consommations d&#039;eau de 80% et d&#039;\u00e9nergie d&#039;un tiers, la Soci\u00e9t\u00e9 d\u00e9veloppe un proc\u00e9d\u00e9 de production d&#039;\u00e9thanol cellulosique, int\u00e9gr\u00e9 dans le process existant et destin\u00e9 \u00e0 valoriser les rafles de ma\u00efs et autres r\u00e9sidus lignocellulosiques issus de la r\u00e9colte. Jeff Broin, le patron de Poet vient de pr\u00e9senter un premier bilan (life cycle analysis) des \u00e9missions de CO2 par ce proc\u00e9d\u00e9 \u00e0 partir des essais r\u00e9alis\u00e9s sur pilote dans le cadre de son projet LIBERTY. <\/p>\n<p>&#160;Le proc\u00e9d\u00e9 cellulosique qui n&#039;utilise que des sous-produits des r\u00e9coltes existantes de ma\u00efs et qui s&#039;int\u00e8gre dans le process existant conduit \u00e0 un bilan carbone positif en raison de la production de biogaz \u00e0 partir des d\u00e9chets du proc\u00e9d\u00e9. En effet alors que les d\u00e9chets de la fili\u00e8re ma\u00efs conduisent \u00e0 des sous-produits valorisables et en particulier \u00e0 de la nourriture pour animaux, les d\u00e9chets de la fili\u00e8re cellulosique sont ici valoris\u00e9s par fermentation ana\u00e9robie et production de biogaz. Il en r\u00e9sulte un bilan des \u00e9missions de CO2 n\u00e9gatif. Concr\u00e8tement une partie du gaz produit servira \u00e0 fournir de l&#039;\u00e9nergie \u00e0 l&#039;ensemble du proc\u00e9d\u00e9, y compris \u00e0 la boucle traditionnelle \u00e0 base de ma\u00efs.<\/p>\n<p>&#160;Ces informations persuadent le lecteur du bel avenir \u00e0 pr\u00e9voir pour le bio\u00e9thanol aux Etats-Unis. L&#039;\u00e9volution de l&#039;essence au E20 (20% d&#039;\u00e9thanol) et la mont\u00e9e en puissance des v\u00e9hicules Flex-Fuel utilisant le E85 devrait permettre d&#039;atteindre un taux de p\u00e9n\u00e9tration du fuel-\u00e9thanol tendant vers les 30% en volume par rapport \u00e0 la consommation totale d&#039;essence. Cette proportion \u00e9tant aujourd&#039;hui de 8,5 % ce sont des consommations d&#039;\u00e9thanol 3 \u00e0 4 fois sup\u00e9rieures \u00e0 celles d&#039;aujourd&#039;hui qui sont \u00e0 pr\u00e9voir. Cette \u00e9volution sera d&#039;autant plus rapide que les prix de l&#039;essence seront \u00e9lev\u00e9s et que l&#039;Administration am\u00e9ricaine voudra relaxer la d\u00e9pendance de son pays au p\u00e9trole. Il faut donc imaginer une consommation de fuel-\u00e9thanol aux USA qui devrait passer des 0,75 million de barils\/jour aujourd&#039;hui vers les 2,5 \u00e0 3 millions de barils\/jour d&#039;ici \u00e0 10 ans.<\/p>\n<p><a href=\"http:\/\/www.poet.com\/media\/Jeff-Broin-FEW-speech-2010.pdf\" target=\"_blank\">LIRE<\/a> la pr\u00e9sentation de Jeff Broin sur le sujet.<\/p>\n<p><a href=\"http:\/\/www.poet.com\/media\/LCA-exec-summary.pdf\">CONSULTER<\/a> le r\u00e9sum\u00e9 des \u00e9tudes r\u00e9alis\u00e9es par Air Improvement Ressource sur le bilan carbone du proc\u00e9d\u00e9. <\/p>\n<p>Remarque: On notera dans le Tableau II que l&#039;EPA avait imagin\u00e9 un rendement bien meilleur en raison de la production d&#039;\u00e9lectricit\u00e9 \u00e0 partir des d\u00e9chets ligneux. Poet, beaucoup plus pragmatique, a bien s\u00fbr pr\u00e9f\u00e9r\u00e9 produire du biogaz par fermentation ce qui est dans la ligne de ce qu&#039;il sait faire et qu&#039;il utilise dans ses proc\u00e9d\u00e9s.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#160; Poet, premier producteur d&#039;alcool de ma\u00efs am\u00e9ricain conduit depuis 22 ans une politique industrielle remarquable, bas\u00e9e sur l&#039;existence de 26 usines agricoles s&#039;approvisionnant en ma\u00efs r\u00e9colt\u00e9 localement. Apr\u00e8s avoir r\u00e9duit ses consommations d&#039;eau de 80% et d&#039;\u00e9nergie d&#039;un tiers, la Soci\u00e9t\u00e9 d\u00e9veloppe un proc\u00e9d\u00e9 de production d&#039;\u00e9thanol cellulosique, int\u00e9gr\u00e9 dans le process existant et [&hellip;]<\/p>\n","protected":false},"author":341,"featured_media":22057,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-367","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bio-carburants"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Le proc\u00e9d\u00e9 de bio\u00e9thanol cellulosique de Poet pr\u00e9sente un remarquable bilan carbone - leblogenergie.com<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2010\/06\/20\/le-procede-de-bioethanol-cellulosique-de-poet-presente-un-remarquable-bilan-carbone\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Le proc\u00e9d\u00e9 de bio\u00e9thanol cellulosique de Poet pr\u00e9sente un remarquable bilan carbone - leblogenergie.com\" \/>\n<meta name=\"twitter:description\" content=\"&#160; Poet, premier producteur d&#039;alcool de ma\u00efs am\u00e9ricain conduit depuis 22 ans une politique industrielle remarquable, bas\u00e9e sur l&#039;existence de 26 usines agricoles s&#039;approvisionnant en ma\u00efs r\u00e9colt\u00e9 localement. 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