臺灣博碩士論文加值系統

本研究使用批式反應器探討由α-亞麻酸與乙醇合成α-亞麻酸乙酯合成反應之非均相反應動力行為，反應中使用酸性陽離子交換樹脂Amberlyst 39為觸媒。實驗操作於323.15 K至343.15 K之間，並探討（醇/酸）進料莫耳比、觸媒質傳阻力以及觸媒添加量之效應。
反應動力實驗結果顯示，隨著反應溫度、（醇/酸）進料莫耳比、觸媒量提高，反應速率加快且平衡轉化率也些微提高，而升高轉速與改變觸媒粒徑差異並不大，觸媒內外部質傳阻力幾乎可忽略不計。
α-亞麻酸乙酯合成反應動力數據分別以理想溶液擬均相模式、非理想溶液擬均相動力模式、Eley-Rideal模式以及Langmuir-Hinshelwood-Hougen-Watson模式關聯，並求得最適化的動力參數值，NRTL模式則用於計算各反應成分之活性係數，關聯的結果顯示ER模式為描述α-亞麻酸乙酯合成反應的非均相催化動力行為的最佳模式。

The heterogeneous kinetics behavior was investigated with a batch reactor for the synthesis of linolenic acid ethyl ester from linolenic acid and ethanol over cation-exchange resins, Amberlyat 39. The experiments were conducted at tempertures from 323.15 K to 343.15 K. Additionally, the effects of molar ratio of ethanol to acid in the feed stream, the mass transfer resistances on the catalytic reaction, and the different levels of catalyst loadings were also observed.
The reaction rate and the equilibrium conversion of acid increased with increase of reaction temperature, molar ratio of ethanol to acid in the feed stream, and catalyst loading. It was also found that the reaction rate and the equilibrium conversion are not much different operating at different agitation rate and using different sizes of catalyst. Therefore the trasport resistance could be neglected over the entire experimental condition.
The kinetic data of the synthesis of linolenic acid ethyl ester were correlated with the ideal-quasi-homogeneous (IQH), the non-ideal-quasi-homogeneous (NIQH), the Eley-Rideal (ER), and the Langmuir-Hinshelwood-Hougen-Watson (LHHW) models, respectively. The optimal values of the kinetic parameters were determined from the data fitting. The NRTL model was used to calculate the activity coefficients for each reacting species. The ER model yielded the best representation for the kinetic behavior of heterogeneous catalytic synthesis of linolenic acid ethyl ester.

第一章 緒論
1-1 前言
1-2文獻回顧
1-3 本研究之重點
第二章 反應動力實驗
2-1 酯化反應動力數據量測
2-2 藥品
2-3 實驗步驟
2-4 組成分析
2-5 數據處理
2-6 動力反應實驗結果
2-7 結果與討論
第三章 動力模式
3-1 動力模式
3-2理想溶液擬均相動力模式
3-3非理想溶液動力模式
3-4 速率常數與吸附常數的訂定
3-5 α-亞麻酸乙酯之動力模式關聯結果
3-6 非理想溶液之平衡常數
第四章 結論與建議
4-1 結論
4-2 建議與注意事項
參考文獻
符號說明

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