Honeycomb copper substrates

Operation. The preheated gas stream is passed through a catalyst bed, where the catalyst initiates and promotes the oxidation of the organic without being permanently altered. The catalyst is normally an active material, such as platiniun, copper chromite, chromium, or nickel, on an inert substrate, such as honeycomb-shaped ceramic. For the catalyst to be effective, the active sites upon which the organic gas molecules react must be accessible. The buildup of polymerized material or reaction with certain metal particulates will prevent contact between active sites and the gas. A catalyst can be reactivated by removing such a coating. 

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