壓縮乾燥空氣係經空氣壓縮機與穩壓儲存桶降溫後，先經冷凍乾燥設備除濕，再以無熱式或加熱式雙塔吸附乾燥設備將高壓空氣乾燥至壓力露點溫度-40℃或-70℃。為了尋找具節能且適用於壓縮空氣吸附乾燥設備之吸附劑，本研究於高壓系統狀態下，探討不同吸附劑表面特性對吸附/脫附現象之影響與再生能耗分析。其中4A、13X、Al2O3、ZSM-5-260、ZSM-5-38作為主要吸附劑應用於壓縮空氣系統之乾燥設備中，並進行減少能耗的脫附方法研究，以找到最適當之吸附劑以及吸附條件。並尋找最佳能耗的條件並符合高壓空氣使用之需求，以利將來應用於雙塔式加熱再生乾燥設備中。故本研究成果可提供壓縮空氣乾燥設備選取吸附劑時之節能參考。實驗結果顯示在高壓系統下活性氧化鋁有最低之能耗。Compressed air is usually produced by air compressor, cooled down with the pressure-stabilized storage barrels and primarily dehumidified via refrigeration dryer. And then a heatless or heat-driven dual-bed adsorption dryer futhermore reduces moisture to reach dew point temperature of -40℃ or -70 ℃. In order to develop a high-efficiency energy-saving adsorbent in adsorption dryer, this study was to investigate the adsorption and desorption behavior and regeneration energy consumption affected by adsorbents characteristic at high pressure status. The adsorbents of 4A, 13X, ZSM-5-260, Al2O3 and ZSM-5-38 were measured in the study to find the lowest energy consumption and optimal desorption method. The results could be applied to screen the optimum adsorbents for high-efficiency thermal-regeneration adsorption dryer in compressed air system. In this research, experement results show that the adsorbent of the lowest regeneration energy consumption under high pressure system is activated alumina.
