This type of catalytic combustor is found in the exhaust systems of automobiles
and in the flue pipes of modern wood burning stoves. The active component is finely
dispersed particles of platinum or palladium.
Propane gas passing through the apparatus can be lit with a match.
A propane flame is used to preheat the ceramic.
The flame is then extinguished but the propane continues to flow.
Propane passing over the hot catalyst exothermically oxidizes and increases
the temperature of the ceramic.
The gas resulting from propane passing over the hot catalyst will extinguish
a lit match. How does the observed effect compare with that in the first
movie where the catalyst is not hot?
When the propane flow is turned off, the catalyst cools off. Why?
A glass chimney containing a piece of ceramic with a platinized surface
Formerly sold as
HS-3 Catalytic Combustor
362 Main Avenue
Norwalk, CT 06851