Improved methods for producing ethanol and methane from biomass

C - Chemistry – Metallurgy – 12 – P

Patent

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Details

C12P 7/06 (2006.01) C12P 5/02 (2006.01)

Patent

CA 2529248

The present invention relates to methods for producing ethanol and methane from biomass. The clear phase of a pulp obtained by fermentation of milled biomass is used for obtaining methane gas for energy production and for conversion in a combined heat and power production of energy and steam. The anaerobically purified clear phase of the pulp can additionally be purified aerobically to enable reuse of the water in the process. The solid phase of the pulp can be utilized for obtaining a high quality feeding stuff or burned for production of energy.

L'invention concerne des procédés de production d'éthanol et de méthane à partir de la biomasse. La phase claire de la pulpe obtenue par fermentation de la biomasse broyée est utilisée pour obtenir du méthane destiné à la production d'énergie et à la conversion dans des opérations de production combinée de chaleur et d'énergie sous forme d'énergie et de vapeur. De plus, la phase claire de la pulpe purifiée en anaérobie peut être purifiée en aérobie pour permettre la réutilisation de l'eau dans le processus. La phase solide de la pulpe peut soit servir à obtenir des produits d'alimentation animale de haute qualité soit brûlée pour obtenir de l'énergie.

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