Rapid activation method, process, and apparatus for making...

Details Rapid activation method, process, and apparatus for making... Rapid activation method, process, and apparatus for making...

B - Operations, Transporting

01

J

B01J 37/10 (2006.01) B01J 19/20 (2006.01) B01J 20/02 (2006.01) B01J 20/20 (2006.01) C01B 31/08 (2006.01) C01B 31/10 (2006.01) F23G 7/00 (2006.01) F23K 3/00 (2006.01)

Patent

CA 2374866

A method and apparatus for the thermal activation of carbonaceous materials to obtain highly porous, high surface area active carbons in very short processing times, based on the catalytic effect of certain wall materials upon the activating gas, particularly CO2, which is beneficial for rapid generation of micropores during the activation process, yet retards excessive burn-off during oxidation applicable to biomass and processing of ligno-cellulosic and cellulosic waste byproducts, where it has potential economic advantage due to the compact reactor sizes, which can be built feasibly, as well as the reduced energy requirement.

L'invention concerne une méthode et un appareil pour l'activation thermique de matières carbonées dans le but d'obtenir des charbons actifs à surface élevée hautement poreux dans des durées de traitement extrêmement courtes, en se fondant sur l'effet catalytique de certaines matières de paroi sur les gaz d'activation, notamment le CO2, lequel est bénéfique pour la production rapide de micropores pendant le procédé d'activation, mais qui a également pour effet de retarder une consommation excessive pendant l'oxydation applicable à la biomasse et au traitement de sous-produits de déchets lignocellulosiques et cellulosiques. Ce procédé présente un avantage économique potentiel en raison de la taille réduite des réacteurs, lesquels peuvent être facilement construits, et des besoins énergétiques réduits.

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