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Commentaires sur : L’industrie chimique, une industrie verte ? https://energethique.be/2009/lindustrie-chimique-une-industrie-verte/ Pour une utilisation plus rationnelle de l'énergie Thu, 30 Jul 2009 21:42:12 +0000 hourly 1 https://wordpress.org/?v=5.8.13 Par : Gizmo https://energethique.be/2009/lindustrie-chimique-une-industrie-verte/comment-page-1/#comment-171 Thu, 16 Jul 2009 17:12:51 +0000 https://energethique.be/?p=198#comment-171 Merci pour toutes ces précisions 😉

]]> Par : Bonfire https://energethique.be/2009/lindustrie-chimique-une-industrie-verte/comment-page-1/#comment-170 Thu, 16 Jul 2009 16:39:37 +0000 https://energethique.be/?p=198#comment-170 En Chine en fonction du prix du baril ils se tournent soit vers le charbon et son dérivé le carbure de calcium (http://fr.wikipedia.org/wiki/Carbure_de_calcium) mais c’est vachement gourmand en électricité (donc faudrait en produire beaucoup plus sans base carbone) et surtout c’est très polluant (heu désolé pour le cliché mais … surtout chez eux).
Pour mémoire c’était également la base de l’industrie chimique en Europe au milieu de siècle passé.
On peut la réutiliser avec un système bien adapté pour réduire la pollution résiduelle …. mais le pétrole est encore trop bon marché.

Au Brésil on a lancé du polymère à base d’alcool de canne à sucre qui est rentable (économiquement et écologiguement parlant) mais uniquement au Brésil où l’on profite des déchets et non d’une sur culture pour produire plus de canne à sucre.

Pour le reste l’industrie chimique (faudrait que je retrouve les figures…) est loin très loin très très loin de représenter une partie significative de la consommation de pétrole.

]]> Par : Gizmo https://energethique.be/2009/lindustrie-chimique-une-industrie-verte/comment-page-1/#comment-168 Thu, 16 Jul 2009 15:51:50 +0000 https://energethique.be/?p=198#comment-168 Je crois que c’est ton milieu ça non ? A-t-on déjà des alternatives durables (j’ai pas dit moins polluantes) à tous les dérivés du pétrole (ou une majorité du moins) ?

]]> Par : Bonfire https://energethique.be/2009/lindustrie-chimique-une-industrie-verte/comment-page-1/#comment-164 Thu, 16 Jul 2009 15:28:02 +0000 https://energethique.be/?p=198#comment-164 Il existe des alternatives au pétrole tout dépend du coût du pétrole …
Si le pétrole est bon marché les alternatives ne seront pas plébiscitées, cependant nombres d’entre elles sont aussi polluantes ‘(voire plus) que le pétrole (charbon, sables bitumineux) et certaines ont une fausses consonances vertes (bioester, alcool de sucre, amidon …).

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