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研究生:蔡炳松
研究生(外文):Ping-sung Tsai
論文名稱:高壓下重質酯類與二氧化碳之汽液相平衡研究
論文名稱(外文):Vapor - Liquid Equilibria for Mixtures Containing Heavy Esters and Carbon Dioxide at Elevated Pressure
指導教授:李明哲李明哲引用關係
指導教授(外文):林河木
學位類別:碩士
校院名稱:國立臺灣科技大學
系所名稱:化學工程系
學門:工程學門
學類:化學工程學類
論文種類:學術論文
論文出版年:2005
畢業學年度:93
語文別:中文
論文頁數:109
中文關鍵詞:二氧化碳汽液相平衡狀態方程式
外文關鍵詞:Vapor-liquid equilibriaVLEcarbon dioxideEsterequation of sate
相關次數:
  • 被引用被引用:2
  • 點閱點閱:215
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  • 下載下載:10
  • 收藏至我的研究室書目清單書目收藏:0
本研究使用半流動式相平衡量測裝置,量測四組由二氧化碳與dimethyl adipate、dimethly glutarate、dimethyl succinate及monomethyl adipate等四種溶質分別組合而成之雙成分系統的汽液相平衡數據,操作溫度在333.15 ~ 413.15 K之間,操作壓力最高至25 MPa。 在相同之操作條件下,實驗結果顯示溶質在二氧化碳中的溶解度大小依序為是dimethyl succinate > dimethlyl glutarate > dimethyl adipate >monomethyl adipate。雙酯類之溶解度隨分子量降低而升高。汽液相平衡數據以Krichevsky-Ilinskaya(KI)方程式關聯,並求出用於不同溫度狀況的亨利常數;亨利常數隨著溫度升高而增加。所量得的汽液相平衡數據也使用不同的三次狀態方程式及混合律關聯;經由泡點壓力計算,訂定最適合的交互作用參數值。計算結果顯使用兩參數凡得瓦爾之混合律之Peng-Robinson狀態方程式通常對含二元酯類之系統可獲得較佳的準確度;使用溫度相依之Patel-Teja狀態方程式則對於CO2 + monomethyl adipate 的系統有最佳的效果。
A semi-flow type apparatus was employed in this study to measure the vapor-liquid equilibrium (VLE) data for four binary systems of carbon dioxide with dimethyl adipate, dimethyl glutarate, dimethyl succinate, and monomethyl adipate at temperatures from 333.15 K to 413.15 K and pressured up to 25 MPa. From experimental results, we found the solubilities of the solute in carbon dioxide to follow the sequence of dimethyl succinate > dimethyl glutarate > dimethyl adipate > monomethyl adipate at the same operating conditions, indicating showed that the solubility of the diesters increases with decreasing the molecular weight. The VLE data were correlated with the Krichevsky-Ilinskaya(KI)equation to determine Henry’s constants. The Henry’s constants were found to increase with increasing temperature for each system. Several cubic equations of state with various mixing rules were also applied to correlate these VLE data. The binary interaction constants were determined from the bubble point pressure calculation. The results showed that the Peng-Robinson equation of state with two-parameter van der Waals mixing rule generally gave better results for the diesters con- taining systems. However, the Patel-Teja equation of state with temperature-dependent mixing rule yielded the best results for CO2 + monomethyl adipate.
第一章
緒論 1
1-1 二氧化碳在超臨界狀態下之性質 1
1-2 汽液相平衡量測設備 7
1-3 汽液相平衡數據的關聯及探討 9
1-4 本文重點 10
第二章 汽液平衡量測 12
2-1 實驗裝置 12
2-2 實驗操作程序 17
2-3 汽液兩相組成之計算 21
2-4 藥品 24
2-5 實驗結果與討論 24
第三章 實驗數據之處理 45
3-2 Krichevsky-Ilinskaya(KI)方程式之關聯 45
第四章 狀態方程式之汽液平衡計算 55
4-1 狀態方程式 554-2 泡點壓力計算與模式參數訂定 57
4-3 狀態方程式與混合律的適用性評比與臨界壓力的估算 61
4-4 K值的計算 80
第五章 結論與建議 96
5-1 結論 96
5-2 建議 96
符號說明 101
附錄A 103
參考文獻 104
作者簡介 109
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中文部分
林河木、李明哲,“超臨界流體系統平衡溶解度之量測及關聯”,化工技術,第六卷,第十期,第120-138頁,民國八十七年。 林河木、李明哲,“高溫汽-液相平衡量測與數據關聯",化工,第四十三卷,第五期,第33-42頁民國八十五年。
涂瑞澤、劉建宏、李宜玲,“超臨界流體萃取技術在食品工業之應用”,化工技術,第十二卷,第十一期,第187-195頁,民國九十三年。
蔡坤龍、陳經緯、蔡繁男,“超臨界流體萃取”,化工,第四十二卷,第三期,第32-47頁,民國八十四年。 龔皇誌,“超臨界二氧化碳抗溶劑與溶劑之汽液平衡",碩士論文,國立台灣科技大學,民國九十三年。
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