| 摘要 |
A catalytic converter unit for neutralizing objectionable gas present in a gas discharge, such as the ozone-laden gas discharge from an electrographic copy machine, uniformly and at a high velocity or flow rate. The unit has a cylindrical housing having an upper cap with a central inlet for admitting the gas discharge, and a lower base having a central outlet for releasing the neutralized gas. A cylindrical catalyst element is removably attached to the lower base and centered within the housing to provide a uniform annular inlet chamber therebetween. The catalyst element is a cylindrical bed of gas neutralizing catalyst, such as ozone-neutralizing granular catalyst, forming a gas-permeable wall surrounding a central gas-discharge chamber opening to the outlet for releasing neutralized gas. The gas-permeable wall of catalyst is characterized by having a downwardly-and inwardly-inclined or conical surface surrounding the central gas discharge chamber, and the catalyst element is enclosed at the top by a domed cap adjacent the central inlet of the housing, whereby the gas discharge, such as ozone-laden gas, introduced through the central inlet is uniformly distributed at a uniform velocity into the annular chamber, through the catalyst wall for neutralization of the ozone, and into the central gas discharge chamber for release of the neutralized gas through the central outlet. |
