Facility having thermochemical cycle for reactive fuel

F - Mech Eng,Light,Heat,Weapons – 23 – C

Patent

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Details

F23C 10/10 (2006.01) F23C 99/00 (2006.01)

Patent

CA 2745055

The invention relates to a facility having a thermochemical cycle and comprising an oxidation reactor (1A) that contains solid particles from thermochemical reaction, a related first cyclone separator (1B), and a return arrangement for solids moving outside of said cyclone separator (1B) to said reactor (1A), said return arrangement comprising a reduction reactor formed of a descending movable bed (2A, 2A). According to the invention, said reduction reactor comprises a reactive fuel supply and a plurality of injections (2C, 2E) of a carbon dioxide and water vapor mixture, said reduction reactor is associated with a second cyclone separator (2B) associated with a return pipe (2D) that returns to the oxidation reactor (1A), said first cyclone separator (1B) comprises, in the solids output thereof, a first gas-tight siphon (1C), and said second cyclone separator (2B) comprises, in the solids output thereof, a second gas-tight siphon (2F).

L'invention concerne une installation à cycle thermochimique comportant un réacteur d'oxydation à lit fluidisé rapide (1A), contenant des particules solides de réaction thermochimique, un premier séparateur cyclone associé (1B) et un agencement de retour des solides en sortie de ce séparateur cyclone (1B) vers ledit réacteur (1A), ledit agencement de retour comportant un réacteur de réduction constitué d'un lit mobile descendant (2A, 2'A). Selon l'invention, ledit réacteur de réduction comporte une alimentation en combustible réactif et comporte plusieurs injections (2C, 2E) d'un mélange de dioxyde de carbone et de vapeur d'eau, ce réacteur de réduction est associé à un second séparateur cyclone (2B) associé à une conduite de retour (2D) vers le réacteur d'oxydation (1A), ledit premier séparateur cyclone (1B) comporte à sa sortie des solides un premier siphon d'étanchéité aux gaz (1C) et ledit second séparateur cyclone (2B) comporte à sa sortie des solides un second siphon d'étanchéité aux gaz (2F).

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