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題名 | Effect of Temperature on the Pervaporation Separation through Chemically Modified Nylon 4 Membrane=溫度效應對尼龍四化學改質膜應用在滲透蒸發分離乙醇水溶液之影響 |
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作 者 | 王月花; 李魁然; | 書刊名 | 南亞學報 |
卷期 | 17 1997.09[民86.09] |
頁次 | 頁83-95 |
分類號 | 467.4 |
關鍵詞 | 溫度效應; 尼龍四化學改質膜; 滲透蒸發分離; 乙醇水溶液; pervaporation; PSI; Permeation ratio; Nylon 4; |
語文 | 英文(English) |
中文摘要 | 藉由透過量比(θt)及參透蒸發分離指數(PSI)可探討尼龍四化學接枝膜(DMAEM-g-N4),應用在滲透蒸發分離程序之效能。DMAEM-g-N4薄膜之選擇比及透過率皆高於未改全之尼龍四薄膜。最佳效能之DMAEM-g-N4薄膜為具有12.7%之接枝度,其選擇比、透過率值分吸為28.3、439g/m2.h。在低溫下所有之θ值皆於1。在進料溫度25及40℃下,PSI值皆隨進料中乙醇濃度增加而增加。 |
英文摘要 | The pervaporation performances of N, N-dimethylaminoethyl methacrylate (DMAEM) chemical grafted Nylon 4 membrane, DMAEM-g-N4, were studied by measurements of permeation ratio (θt) and pervaporation separation inde (PSI). The water persmelectivity and permeation rate for the chemically modified Nylon 4 membrane wwere higher than those of the unmodified Nylon 4 membrane. Optimum pervaporation results were obtained by DMAEM-g-N4 membrane with a degree of grafting of 12.7% giving separationfacotr 28.3 and permeation rate 439g/m2.h. Allθt values are less than unity at low temperature. The PSI value increases with increasing the ethanol concentration in the feed solution at 25 and 40℃. |
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