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題名 | Adsorption of Dodecane from Water in a Rotating Packed Bed=旋轉填充床中吸附水中正十二烷之研究 |
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作 者 | 林佳璋; 陳昱劭; 劉懷勝; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷期 | 35:5 2004.09[民93.09] |
頁次 | 頁531-538 |
分類號 | 460.024 |
關鍵詞 | 旋轉填充床; 正十二烷; 水正十二烷乳化物; Rotating packed bed; Adsorption; Pseudo-first-order model; Mass transfer coefficient; |
語文 | 英文(English) |
中文摘要 | 本研究在旋轉填充床產生離心力場下進行水/正十二烷乳化物之吸附程序,實驗結果顯示以活性碳或木屑為吸附劑時,離心力都能夠有效地增加吸附的速率。藉由理論分析可計算系統之質傳係數,結果發現質傳係數分別與填充床轉速和液體流量的0.81-0.86次方與0.34次方成正比,此冪次關係與Munjal et al. (1989a, 1989b)理論分析的結果吻合。 |
英文摘要 | An RPB (rotating packed bed) adsorption process was developed to remove emulsified dodecane from water under a centrifugal field. With activated carbon and sawdust as adsorbents, respectively, experimental results showed that the centrifugal force could enhance the rate of adsorption. Although an empirical pseudo-first-order model could describe the adsorption satisfactorily for both RPB and conventional packed bed, a mathematical analysis was provided to obtain mass transfer coefficient. It was shown that mass transfer coefficient increased with increasing rotational speed and liquid rate to the power of 0.81-0.86, and 0.34, respectively. These experimental results are consistent with the theoretical prediction of Munjal et al. (1989a, 1989b). |
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