本論文使用半流動式溶解度測定裝置，測量正十四醇及正十四酸於次臨界及超臨界二氧化碳中的溶解度，並測量三種共溶劑( 丙酮，正己烷及乙醇 )對該溶解度的影響。溫度範圍是 22 ~ 42 oC，壓力範圍是 1200 ~ 3000 psig，共溶劑濃度範圍是 0 ~ 7 mol%。
這些實驗數據顯示，在同溫度及壓力之下，正十四醇在超臨界二氧化碳中之溶解度遠比正十四酸高。這些溶解度在超臨界溫度下( 實驗溫度42 oC )，隨壓力增加而升高，在次臨界溫度下( 實驗溫度22 oC )，隨壓力增加而減少。這種現象大桓一成 [68]量測維他命 E在二氧化碳中溶解度時也觀察到。本論文依照大桓一成的解釋溶解度之方法，用 P — x 相圖來說明此不尋常的溶解度變化。
共溶劑對二氧化碳溶解度之影響，根據本實驗結果，我們發現，在上述之溫壓範圍內，這三種共溶劑對溶解度並沒有很顯著之影響。我們利用三成分相圖來解釋共溶劑與溶解度之關係。最後用三種不同的經驗式關聯實驗數據。結論是姚及蔡的經驗式關聯的結果最佳。

In this study, we used a semi-flow type experimental equipment to measure solubilities of 1-tetradecanol and myristic acid in carbon dioxide at sub- and supercritical conditions, and to determine the influence of three cosolvents on the solubilities. The experimental conditions were: temperatures from 22 to 42 oC, pressures from 1200 to 3000 psig, and the cosolvent concentrations from 0 to 7 mole %.
The experimental data show that solubilities of 1-tetradecanol in SC-CO2 are higher than those of myristic acid at the same temperature and pressure. At temperatures ( 42 oC ) above the CO2 critical temperature, the solubility increases as the pressure increases. At temperatures ( 22 oC ) below the CO2 critical temperature, no significant change in solubility was observed with respect to pressure change. This similar phenomenon had also been observed by Ohgaki et al for their work on solubility of α-tocopherol( i.e., vitamine E ) in SC-CO2. The unexpected solubility change of this study was explained by following the same method of Ohgaki et al. [68], with which they used to explain their data.
We have discovered that the cosolvents had little effect on the CO2 solubility. We used ternary phase diagrams to explain the relation of cosolvents on the solubility enhancement. Finally, the solubility data of this study were correlated with three empirical equations from the literature. Our experimental data were correlated best by the Yau and Tsai empirical equation.

中文摘要……………………………………………………..…………Ⅰ
英文摘要…………………………………………………………………Ⅱ
總目錄……………………………………………………………………Ⅲ
表目錄……………………………………………………………………Ⅴ
圖目錄……………………………………………………………………Ⅵ
符號說明…………………………………………………………………Ⅸ
第一章 研究的動機…………………………………………………… 1
第二章 超臨界流體萃取技術的簡介………………………………… 3
2-1 超臨界流體簡介…………………………………………………. 3
2-2 壓力﹑溫度的效應………………………………………………. 4
2-3 超臨界流體之共溶劑效應………………………………………. 5
2-4 超臨界流體的應用………………………………………………. 7
第三章 理論部分……………………………………………………… 11
3-1 雙成分系統( 超臨界流體 ╱ 固體溶質 )相圖介紹………….. 11
3-2 數學模式的關聯………………………………………….….….. 16
第四章 實驗部分……………………………………….…….………. 18
4-1 本研究之實驗系統……………………………….….….………. 18
4-2 實驗藥品………………………………………………….….….. 18
4-3 實驗設備……………………….…………………….….………. 19
4-4 實驗裝置說明………………………………………….….….…. 22
4-5 實驗操作步驟…………………………………….….….………. 25
4-6 實驗前的準備………………………………………….…..……. 27
第五章 結果與討論…………………………………………..…….… 28
5-1 實驗結果……………………………………………….….….…. 28
5-2 實驗結果之討論…………………………………….…….….…. 28
第六章 結論……………………………………………………...…… 34
參考文獻………………………………….………………………..…… 70

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