Device for thermally treating granular solid matter

C - Chemistry – Metallurgy – 01 – F

Patent

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Details

C01F 7/44 (2006.01) B01J 6/00 (2006.01) B01J 8/14 (2006.01) B01J 19/24 (2006.01)

Patent

CA 2384957

The invention relates to a device for thermally treating granular solid matter for the purpose of carrying out endothermic reactions. CO2 and/or water is removed from the solid matter in a reactor by burning fuel to generate a combustion gas in the reactor, vortexing the solid matter with the combustion gases in the reactor, using hot exhaust gas from the reactor to pre-heat the solid matter and removing the solid matter from the reactor. The reactor used is an approximately cylindrical, horizontal cyclone with an approximately horizontal axis of symmetry and vortex. Fuel, solid matter and gases are supplied in an inlet zone of the reactor while a rotation vortex is formed in said inlet zone and solid matter and hot gas are removed from an outlet zone of the reactor.

L'invention concerne un dispositif pour le traitement thermique de matières solides en grains, servant à réaliser des réactions endothermiques. Selon l'invention, le CO¿2? et/ou l'eau sont séparés des matières solides dans un réacteur. On fait brûler un combustible pour produire un gaz de combustion dans le réacteur, on crée un tourbillon entre les matières solides dans le réacteur et les gaz de combustion, on utilise les gaz brûlés chauds sortant du réacteur pour préchauffer les matières solides et on retire les matières solides du réacteur. Ce dernier se présente sous la forme d'un cyclone horizontal, pratiquement cylindrique, comportant un axe de symétrie et un axe de tourbillon pratiquement horizontaux. On achemine le combustible, les matières solides et les gaz dans une zone d'entrée du réacteur, en créant un écoulement tourbillonnaire dans cette zone d'entrée, et on retire les matières solides et le gaz chaud de la zone de sortie du réacteur.

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