CATALYTIC COMBUSTOR HAVING REDUCED LIGHT-OFF TEMPERATURE

摘要

The combustor is formed by coating one side of a corrugated metalstrip completely with catalyst, the opposite side of the strip with catalyst only in a narrow band located along an edge of the strip. The strip is then folded back and forth upon itself to form the combustor. Alternatively, a pair of strips can be prepared as described above, and the pair is then wound into a spiral. In either case, the completed combustor has catalyzed channels which alternate with uncatalyzed channels. The alternating catalyzed and uncatalyzed channels prevent the temperature of the combustor from becoming high enough to deactivate the catalyst. The catalyzed channels at the inlet end of the combustor reduce the light-off temperature enough to deactivate the catalyst. The catalyzed channels at the inlet end of the combustor reduce the light-off temperature.