| 摘要 |
<p>PURPOSE:To improve the cleaning-up rate by penetrating supporting bars for fixing in honeycomb-shaped catalyst bodies having many vent holes, arranging said bodies in multiple stages and arranging the bodies in such a way that the vent holes of the adjacent catalyst bodies deviate from each other. CONSTITUTION:When a harmful gas is introduced through a duct connected to an introducing path 3 into a catalyst vessel 2, the gas is heated by a heater 16 and contacts catalyst bodies 6 in a heated state. The gas is oxidized and cleaned up in the process of passing through vent holes 8 and is discharged through an exhaust port 4 to the outside of the device. The bodies 6 are so arranged that the vent holes 8 thereof do not coincide with the vent holes 8 of the adjacent bodies 6. Since the holes 8 deviate from each other in position, the gas to be cleaned up passes through plural stages of the bodies 6 with high contact efficiency with the bodies 6, by which an extremely high cleaning-up rate is obtd.</p> |
