System and method for extracting energy from agricultural waste

Details System and method for extracting energy from agricultural waste System and method for extracting energy from agricultural waste

C - Chemistry, Metallurgy

02

F

C02F 9/14 (2006.01) C02F 3/28 (2006.01) C02F 11/04 (2006.01) C07C 29/151 (2006.01) C07C 31/04 (2006.01) C12P 5/02 (2006.01)

Patent

CA 2469653

The present invention relates to a process and apparatus for processing agricultural waste to make alcohol and/or biodiesel. The agricultural wastes are subjected to anaerobic digestion which produces a biogas stream containing methane, which is subsequently reformed to a syngas containing carbon monoxide and hydrogen. The syngas is converted to an alcohol which may be stored, sold, used, or fed directly to a reactor for production of biodiesel. The solids effluent from the anaerobic digester can be further utilized as slow release, organic certified fertilizer. Additionally, the wastewater from the process is acceptable for immediate reuse in agricultural operations.

L'invention concerne un procédé et un appareil de traitement des déchets agricoles qui permettent de fabriquer de l'alcool et/ou du biodiésel. Les déchets agricoles sont soumis à une digestion anaérobie qui engendre un flux de biogaz contenant du méthane, lequel est reformé par la suite en gaz de synthèse chargé de monoxyde de carbone et d'hydrogène. Le gaz synthétique est converti en un type d'alcool qui peut être stocké, vendu, utilisé ou introduit directement dans un réacteur pour produire du diesel. Les effluents solides provenant du digesteur anaérobie peuvent servir d'engrais organiques à libération lente autorisés. De plus, les eaux d'égout du processus peuvent être immédiatement réutilisées dans des processus agricoles.

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