| 摘要 |
The system for removing carbon monoxide from compressed air comprises two towers, each of which has a section containing a desiccant and an adjacent section containing hopcalite for converting the carbon monoxide to carbon dioxide. A four-way, reversible main valve communicates with the desiccant end of either tower. The hopcalite end of the towers is connected through a pressure reducer which reduces pressure of all the compressed air in the system. After the compressed air is dried and the carbon monoxide removed, the air passes through the desiccant containing moisture from a previous cycle so as to be rehumidified for its exit from the main valve and so as to regenerate the desiccant for a reverse cycle. The two towers may be side by side or may be concentrically positioned, in which case a common heat conducting wall assists in drying the moisture containing desiccant. The system operates with no loss of air and with no net gain or loss of moisture in the system.
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