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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/80316


    Title: 甲基水楊酸異構物於超臨界二氧化碳中之溶解度量測
    Authors: 陳志宗;Chen, Jhih-Zong
    Contributors: 化學工程與材料工程學系
    Keywords: 甲基水楊酸;超臨界二氧化碳;溶解度
    Date: 2019-07-26
    Issue Date: 2019-09-03 12:30:51 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 本研究建立一套半流動式裝置用於量測不同溫度(308.2 K、318.2 K、328.2 K)及壓力(90 ~ 185 bar)條件下甲基水楊酸異構物於超臨界二氧化碳中之溶解度數據,研究之固體溶質為:水楊酸、3-甲基水楊酸、4-甲基水楊酸。其中水楊酸在308.2K下之溶解度量測實驗目的在於驗證實驗設備與手法的可行性,並以相同實驗設備及手法量測3-甲基水楊酸與4-甲基水楊酸之溶解度實驗數據。在取得溶解度實驗數據後,利用由結合律為基礎的半經驗式模型—Chrastil model、由稀釋溶液理論出發推演的Mendez-Santiago and Teja model以及多參數模型進行回歸計算,皆能得到良好回歸結果。本研究亦使用Chrastil model與Mendez-Santiago and Teja model進行數據自身一致性測試,以確認實驗數據具一致性。;In this study, the solid solubility of the isomers of methylsalicylic acid in supercritical carbon dioxide was measured using a semi-flow type apparatus at different temperature (308.2 K、318.2 K、328.2 K) over the pressure range from 90 to 185 bar. The solid solutes studied in this work were salicylic acid, 3-methylsalicylic acid, and 4-methylsalicylic acid. The solubility of salicylic acid in supercritical carbon dioxide at 308.2 K was measured to validate the reliability of the apparatus and experimental procedures. The result of salicylic acid shows a well satisfactory agreement with experimental data reported in literature. Using the same apparatus and experimental procedures, the solubility of 3-methylsalicylic acid and 4-methylsalicylic acid were successfully obtained and correlated by three semi-empirical models, Chrastil model, Mendez Santiago and Teja model (MST model), and multi-parameter model. The consistency of solubility data was confirmed by the good correlation results obtained with Chrastil model and MST model.
    Appears in Collections:[化學工程與材料工程研究所] 博碩士論文

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