Methods and apparatus for producing syngas and alcohols

Details Methods and apparatus for producing syngas and alcohols Methods and apparatus for producing syngas and alcohols

C - Chemistry, Metallurgy

10

J

C10J 3/02 (2006.01) C10G 5/00 (2006.01) C10J 3/20 (2006.01)

Patent

CA 2707770

The present invention features methods and apparatus for the pyrolysis or torrefaction of a carbon-containing feedstock before it is converted to syngas. In some embodiments, biomass is first pretreated by torrefaction and/or pyrolysis, followed by devolatilization and/or steam reforming to produce syngas. Various mixtures of such pretreated biomass, combined with fresh biomass, can be employed to produce syngas. The syngas can be converted to alcohols, such as ethanol, or to other products.

La présente invention concerne des procédés et appareils permettant la pyrolyse ou la torréfaction d'une charge d'alimentation contenant du carbone avant sa conversion en gaz de synthèse. Dans certains modes de réalisation, la biomasse est d'abord prétraitée par torréfaction et/ou pyrolyse, suivie d'une extraction des matières volatiles et/ou d'un reformage à la vapeur pour produire du gaz de synthèse. Divers mélanges d'une telle biomasse prétraitée, combinés à de la biomasse nouvelle, peuvent être employés pour produire du gaz de synthèse. Le gaz de synthèse peut être converti en alcools, tels que l'éthanol, ou en d'autres produits.

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