Catalytically stabilized thermal attainment

Catalytic Activity. The world-wide interest focused in the catalytic partial oxidation of methane to formaldehyde has led to a great variety of conflicting results (9), The main reason of such discrepancies lies in the lack of a generally valid rule for evaluating and comparing the proposed catalytic systems. In effect, this reaction involves a very complex pathway since the desired partial oxidation product, HCHO, exhibits a limited thermal stability at T>4(X)°C and can be oxidized to more easily than CH itself. Hence, a suitable reactor device and appropriate operating conditions result to be of fundamental importance in order to attain reliable data unaffected by experimental artefacts. 

Catalytic filters should possess the following properties 1) high thermal, chemical, and mechanical stability 2) high dust separation efficiency attained by cake filtration (no penetration of particulates into the filter structure) 3) low cost 4) high catalytic activity (operation at high superficial velocities) and 5) low pressure drop. 

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