Method for applying a catalyst to a surface of the catalytic combustion burner
AssigneeProduits Berger
InventorsCorinne GERARD, Laurent OZOUF
Life of this patent
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Abstract
The present invention is directed to a method for applying a catalyst to the surface of a catalytic combustion burner that allows better distribution of the catalyst on the surface of the end piece of the burner, and thus prevents too high a temperature at the central zone. The present invention is also directed to a catalytic combustion burner which can be coated with a catalyst in accordance with the method of the invention, and to a catalytic combustion bottle adapted to contain a combustible liquid and to receive at its neck a catalytic combustion burner of the invention.
Claims6
Method for applying a catalyst to the surface of a catalytic combustion burner, said catalytic combustion burner being composed of a porous material and comprising:
- an end piece with an upper part and a lower part, said upper part having a peripheral side wall comprising an inner face delimiting a cavity, an essentially cylindrical outer face, and a crown-shaped upper face, and a sleeve disposed in the extension of said lower part of said end piece, and comprising a cavity adapted to grip a wick intended to convey a combustible composition to the burner,
- said method comprising:
- A) a step of impregnating said outer face and, either, said inner face, said crown of the end piece, or said inner face and said crown, with a catalytic composition comprising at least one catalyst belonging to groups 9 or 10 of the Periodic Table of the Elements;
- B) a step of heat-treating said burner thus impregnated with the catalyst to a temperature Ta of at least 450° C.;
- said method being characterized in that said catalytic composition is a non-newtonian fluid exhibiting, before application on the end piece, a dynamic viscosity μc of at least 15 mPa·s at 20° C.
Dependencies are inferred from the claim text.