• 作者： Chang, Chiehming J.; Day, Chany-Yih; Chen, Chiu-Yang
• 中文摘要： 本文以新穎的密度量測技術進行二氧化碳與酒精及其與丙酮二種系統的汽液平衡和二成分混合液相之過剩體積的實驗,溫度為291、298、303、308及313K,壓力達14.39MPa。實驗結果顯示:二氧化碳分別在酒精及丙酮中的溶解度均隨壓力增高而增加,但卻隨溫度增高而降低; 其在丙酮中之溶解度高於其在酒精中之溶解度。另一方面,這二種二成分混合液相之過剩體積,大部分與理想溶液呈負偏差行為。同時,Peng-Robinson狀態方程式結合僅含一個可調相互作用之參數的凡得瓦爾混成法則,即可成功地擬合此二種高壓混合溶液之汽液相平衡數據。
• 英文摘要： Vapor-liquid equilibria and excess volumes for carbon dioxide+ethanol and carbon dioxide+acetone were determined by a novel technique of density measurement at 291, 298, 303, 308, 313K, and pressures up to 14.39MPa. Both solubilities of carbon dioxide in ethanol and acetone were found to increase with applied pressure but to decrease with increasing temperature. Peng-Robinson equation of state and van der Waals mixing rule with one adjustable interactional parameter was able to successfully correlate equilibrium data for these two systems. Most excess volume in the liquid phase of these two binary mixtures showed negative deviation from the ideal solution.
• 中文關鍵字： 二氧化碳; 汽液平衡; 過剩體積; 高壓密度量測; 乙醇
• 英文關鍵字： Carbon Dioxide; Vapor-Liquid Equilibrium; Excess Volume; High Pressure Densitometer; Ethanol