Method for pretreating plant starting material for the...

Details Method for pretreating plant starting material for the... Method for pretreating plant starting material for the...

C - Chemistry, Metallurgy

12

P

C12P 7/10 (2006.01) C08H 8/00 (2010.01) C13B 5/00 (2011.01) C12P 19/02 (2006.01) C12P 19/14 (2006.01) C13K 1/02 (2006.01)

Patent

CA 2725816

The invention proposes a method for pretreating plant starting material for the purpose of producing bioethanol and/or sugar by means of a common chamber (12), characterized in that: -during one period, the plant material (MP), introduced into the common pretreatment chamber, is a lignocellulosic plant starting material, the pretreatment of which is aimed at separating the cellulose, the hemicelluloses and the lignins so as to obtain a pretreated plant material that canbe hydrolysed and fermented for the production of bioethanol; -during another period, the plant material (MP), introduced into the common pretreatment chamber, is a sacchariferous plant starting material, the pretreatment of which is aimed at extracting therefrom, by diffusion, a sugar juice for the production of sugar and/or of bioethanol.

La présente invention concerne un procédé pour prétraiter un matériau de départ de plante dans le but de produire du bioéthanol et/ou du sucre au moyen dune chambre commune (12), caractérisé en ce que : - pendant une période, le matériau de plante (MP), introduit dans la chambre de prétraitement commune, est un matériau de départ de plante lignocellulosique, dont le prétraitement vise à séparer la cellulose, les hémicelluloses et les lignines de manière à obtenir un matériau de plante prétraité qui peut être hydrolysé et fermenté pour la production de bioéthanol; - pendant une autre période, le matériau de plante (MP), introduit dans la chambre de prétraitement commune, est un matériau de départ de plante saccharifère, dont le prétraitement vise à extraire de celui-ci, par diffusion, un jus de sucre pour la production de sucre et/ou de bioéthanol.

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