Catalytic heater

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

Patent

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Details

F23C 3/00 (2006.01) F23C 13/02 (2006.01) F23D 14/10 (2006.01) F23D 14/18 (2006.01)

Patent

CA 2727262

A catalytic heating system comprising a main catalyst (20, 50) for flameless catalytic burning of fuel gas and a triggering system for initiating the catalytic burning, the triggering system comprising an electri-cal power source electrically connected to a metallic catalyst portion (104). As electric current flows through the metallic catalyst portion, it is in itself heated as an electric resistance heater to a temperature necessary for trig-gering the catalytic burning. By using electrical current for direct heating of a catalyst portion, reaction starts as soon as the resistance heating achieves the temperature for initiating the catalytic reaction. As soon as the reaction starts, it is transferred to the main catalyst.

La présente invention concerne un système de chauffage catalytique comprenant un catalyseur principal (20, 50) pour la combustion catalytique sans flamme de gaz combustible et un système d'amorçage permettant de démarrer la combustion catalytique, le système d'amorçage comprenant une source d'énergie électrique connectée électriquement à une partie catalyseur métallique (104). Lorsque le courant électrique traverse la partie catalyseur métallique, celle-ci est elle-même chauffée comme un appareil de chauffage à résistance électrique jusqu'à la température nécessaire pour amorcer la combustion catalytique. L'utilisation d'un courant électrique pour le chauffage direct d'une partie catalyseur, provoque la mise en route de la réaction dès que le chauffage de la résistance atteint la température d'amorçage de la réaction catalytique. Dès que la réaction démarre, elle est transférée vers le catalyseur principal.

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