Flow process for pretreatment of lignocellulosic biomass

Details Flow process for pretreatment of lignocellulosic biomass Flow process for pretreatment of lignocellulosic biomass

D - Textiles, Paper

21

C

D21C 1/00 (2006.01) C12P 7/10 (2006.01) C12P 19/14 (2006.01) C13K 1/02 (2006.01) D21C 1/10 (2006.01)

Patent

CA 2729162

Described are methods for pretreating lignocellulosic biomass that comprise thermally conditioning the biomass by flow processing an aqueous slurry of the biomass through an outer passage(s) of one or more heat exchange devices while circulating a heat exchange fluid through an inner passage(s) of the heat exchange device(s). Also described are methods for producing fermentation products, especially ethanol, from the pretreated biomass.

L'invention porte sur des procédés de prétraitement d'une biomasse lignocellulosique qui comprennent le conditionnement thermique de la biomasse par traitement par écoulement d'une bouillie aqueuse de la biomasse à travers un ou plusieurs passages externes d'un ou plusieurs dispositifs d'échange de chaleur, tout en faisant circuler un fluide d'échange de chaleur à travers un ou des passages internes du ou des dispositifs d'échange de chaleur. L'invention porte également sur des procédés de production de produits de fermentation, notamment de l'éthanol, à partir de la biomasse prétraitée.

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