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{"id":1231,"date":"2010-04-16T10:36:29","date_gmt":"2010-04-16T08:36:29","guid":{"rendered":"https:\/\/energethique.be\/?p=1231"},"modified":"2010-05-25T22:01:50","modified_gmt":"2010-05-25T20:01:50","slug":"petrole-vert","status":"publish","type":"post","link":"https:\/\/energethique.be\/2010\/petrole-vert\/","title":{"rendered":"P\u00e9trole vert"},"content":{"rendered":"L’id\u00e9e de produire du p\u00e9trole, ou plut\u00f4t du carburant, \u00e0 partir de mati\u00e8res organiques n’est pas nouvelle et il existe de tr\u00e8s nombreuses m\u00e9thodes plus ou moins efficaces et donc rentables (en terme \u00e9nerg\u00e9thique).<\/p>\n
Rappelons d’ailleurs en passant que le p\u00e9trole n’est lui m\u00eame jamais que de la biomasse puisque issu de mati\u00e8res organiques s\u00e9diment\u00e9es et ferment\u00e9es.<\/p>\n
Une nouvelle fili\u00e8re \u00e0 partir du traitement d’algues vertes vise \u00e0 obtenir un \u00ab\u00a0p\u00e9trole\u00a0\u00bb au pouvoir calorifique de pr\u00e8s de 45 800 J\/g soit autant que l’essence et le diesel.<\/p>\n
Pr\u00e9c\u00e9demment les algues, difficiles \u00e0 traiter car gonfl\u00e9es d’eau, \u00e9taient s\u00e9ch\u00e9es au soleil ou dans un four pour \u00eatre ensuite r\u00e9duite en poudre.<\/p>\n
Cette poudre est ensuite trait\u00e9e pour \u00ab\u00a0casser\u00a0\u00bb les parois cellulaires et extraire ainsi les huiles \u00e0 partir desquelles on produit un carburant appel\u00e9 \u00ab\u00a0P\u00e9trole brut vert\u00a0\u00bb.<\/p>\n
<\/p>\n
<\/p>\n
L’\u00e9quipe du Central Research Institute of Electric Power Industry (CRIEPI<\/a>), en collaboration avec l’Organisation pour le D\u00e9veloppement des Energies Nouvelles et des Technologies Industrielles (NEDO<\/a>), a \u00e9labor\u00e9 un nouveau proc\u00e9d\u00e9, \u00e0 partir d’un solvant organique le dim\u00e9thyle \u00e9ther (DME), permettant d’extraire ces huiles moyennant une \u00e9conomie substantielle d’\u00e9nergie par rapport au proc\u00e9d\u00e9 traditionnel.<\/p>\nDans les essais men\u00e9s ils ont utlis\u00e9s 6,65g d’algues pr\u00e9alablement centrifug\u00e9es afin de r\u00e9duire la teneur en eau de 9%.<\/p>\n
Les chercheurs ont ensuite fait passer sur ce r\u00e9sidu un flux de 10cm3\/minute de DME pendant 11 minutes \u00e0 20\u00b0C et 5 bar de pression ; apr\u00e8s traitement ils ont recueilli 0,24g de p\u00e9trole brut soit pas loin de 40% de la masse en mati\u00e8re s\u00e8che.<\/p>\n
D’apr\u00e8s le CRIEPI le proc\u00e9d\u00e9 devrait \u00eatre accessible industriellement d’ici deux ans.<\/p>\n
Source Techno-Science<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"L’id\u00e9e de produire du p\u00e9trole, ou plut\u00f4t du carburant, \u00e0 partir de mati\u00e8res organiques n’est pas nouvelle et il existe de tr\u00e8s nombreuses m\u00e9thodes plus ou moins efficaces et donc rentables (en terme \u00e9nerg\u00e9thique).<\/p>\n
Rappelons d’ailleurs en passant que le p\u00e9trole n’est lui m\u00eame jamais que de la biomasse puisque issu de mati\u00e8res organiques s\u00e9diment\u00e9es et ferment\u00e9es.<\/p>\n
Une nouvelle fili\u00e8re \u00e0 partir du traitement d’algues vertes vise \u00e0 obtenir un \u00ab\u00a0p\u00e9trole\u00a0\u00bb au pouvoir calorifique de pr\u00e8s de 45 800 J\/g soit autant […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true},"categories":[1],"tags":[],"jetpack_featured_media_url":"","jetpack_publicize_connections":[],"jetpack_shortlink":"https:\/\/wp.me\/pBGwz-jR","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/posts\/1231"}],"collection":[{"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/comments?post=1231"}],"version-history":[{"count":0,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/posts\/1231\/revisions"}],"wp:attachment":[{"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/media?parent=1231"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/categories?post=1231"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/energethique.be\/wp-json\/wp\/v2\/tags?post=1231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}