隨著工業製程的進步，無論是半導體產業，或是其他化學工業，常常需要使用揮發性有機化合物(Volatile Organic Compounds，簡稱VOCs )作為塗裝或清洗等之溶劑，因為大量的生產製造，廢棄的有機溶液或氣體之排放量相當驚人，因此揮發性有機化合物的回收，對於環境品質保護甚為重要。過去在處理廢水廢氣時常使用固定填充床，但由於質傳效果較差，因而常需要龐大的體積才能達到所要處理的目的。以往研究顯示若改變流體性質、填充物性質和流體操作條件可增加分離或反應的效果，若再加上重力場，則溢流(Flooding)的可能性會大幅降低，亦可大幅提升質傳速率。因此，若以高速旋轉填充床(Rotating Packed Bed，簡稱RPB)所產生的超重力場提升質傳速率，則可縮減回收VOCs的設備體積，此種操作稱之為超重力技術(High Gravity，簡稱Higee)。
基於超重力場的特性，本研究分別以四氟丙醇(2,2,3,3-Tetrafluropropanol，TFP)與甲苯(Toluene)作為VOCs之代表，探討當活性碳吸附VOCs後，在超重力場下以超臨界二氧化碳脫附活性碳之效果。實驗數據顯示在315 K下，四氟丙醇與甲苯能有效被活性碳吸附於一填充床中。在超重力場下，超臨界二氧化碳能更有效的脫附四氟丙醇與甲苯，亦即超臨界二氧化碳能結合離心力而在脫附中產生加乘之效果。其脫附效率會隨著轉速及壓力的增加而提升，流速增加亦會提高脫附效率。在較低壓下(8.96 MPa、11.72 MPa)，脫附效率隨溫度增加而下降，而在較高壓力下(15.86 MPa)，則存在ㄧ最佳操作溫度。當活性碳粒徑較小時，因內部質傳阻力的影響較不顯著，是以提升脫附之速率。就設備體積與脫附效率而言，以超重力旋轉床取代傳統固定床是很好的選擇。

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