Hybrid combustor for fuel processing applications

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

Patent

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F23C 13/00 (2006.01) F23C 13/06 (2006.01) F23D 3/40 (2006.01)

Patent

CA 2672208

The present invention discloses a hybrid combustor, such as an anode tailgas oxidizer (ATO), for fuel processing applications which combines both flame and catalytic type burners. The hybrid combustor of the present invention combines the advantages of both flame and catalytic type burners. The flame burner component of the hybrid combustor is used during start-up for the preheating of the catalytic burner component. As soon as the catalytic burner bed is preheated or lit off, the flame burner will be shut off. Optionally, the hybrid combustor may also include an integrated heat recovery unit located downstream of the catalytic burner for steam generation and for the preheating of the feed for a reformer, such as an autothermal reformer.

La présente invention concerne une chambre de combustion hybride, et notamment un dispositif anodique d'oxydation des gaz résiduaires ou "ATO" (Anode Tailgas Oxidizer), pour les applications de conversion des combustibles combinant les brûleurs à flamme et catalytiques. La chambre de combustion hybride de la présente invention combine les avantages des deux types de brûleurs: brûleur à flamme et brûleur catalytique. Le module brûleur à flamme de la chambre de combustion hybride sert pendant le démarrage pour le préchauffage du module brûleur catalytique. Dès que le lit du brûleur catalytique est préchauffé ou éteint, le brûleur à flamme est systématiquement éteint. Le cas échéant, la chambre de combustion hybride peut également intégrer une unité de récupération de chaleur située en aval du brûleur catalytique pour la production de vapeur et pour le réchauffage de la masse à traiter destinée à un reformeur tel qu'un reformeur autothermique.

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