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題名 | Calculations of Excess Molar Volumes and Excess Molar Enthalpies with Different Couplings of Cubic Equations of State and Mixing Rules=二及三參數狀態方程式配合混合律應用於超餘摩耳體積與焓的計算 |
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作者 | 李亮三; 莊敏郎; Lee, Liang-sun; Chuang, Min-lang; |
期刊 | Journal of the Chinese Institute of Chemical Engineers |
出版日期 | 19990600 |
卷期 | 30:3 1999.06[民88.06] |
頁次 | 頁243-254 |
分類號 | 348.42 |
語文 | eng |
關鍵詞 | 三參數狀態方程式; 混合律; 超餘摩耳體積與焓; 雙參數; Equationa of state; Mixing rule; Excess molar volume; Excess molar enthalpy; Correlation; |
中文摘要 | 超餘摩耳體積與焓,□及□,在化工的程序設計裡是相當重要的熱力學性質,尤其應用在混合操作,然而這些熱力學性質無法烷全由實驗得到,一部份亦得由計算求得。本文論既在討論由狀態方程式(EOS)計算的可靠性。本論文以雙參數及三參數狀態方程式並組配不同的混合律計算13組非極性及極性混合物的超餘摩耳體積與焓,雙參數EOS有:Redlich-Kwong、Soave-Redlich-Kwomg、、Peng-Robinson、及Stryjek-Ver,三參數EOS有:Schmidt-Wenzel、Harmens-Kanpp、Patel-Teja、及Iwai-Margerum-Lu而混合律有:van der Waals、van Laar、Redlich-Kister、Huron-Vidal、及Kurihara-Tochigi-Kojima。關聯計算結果說明,對此13組非極性及極性混合物□的計算要比□好,三參數EOS並不一定比雙參數EOS好。而以局部組成理論為基礎的混合律要比簡單的混合律好,例是例外的是水-酒精、水-甲醇、及環己烷-正十烷。本文討論的混合律中van der Waals混合律用於雙參數EOS是計算效果最差的一個。它只適合低碳的非極性□及非極性的□。 |
英文摘要 | In this study, the excess molar volumes, □, and excess enthalpies, □, of thirteen polar and nonpolar binary mixtures from literature were collelated by the two-parameter cubic equations of state (EOS) of Redlich-Kwong (RW) (1949), Soave-Redlich-Kwang (SRK) (1972), Peng-Robinson (PR) (1976), Stryjek-Vere (PPSV) (1986a, b), and by the three-parameter Schmidt-Wenzel (SW) (1980), Harmens-Knapp (HK) (1980), Patel-Teja (PT0 (1982), and Iwai-Margerum-Lu (IML) (1988) equations of state along with the mixing rules of the van der Waals (vdW), van Laar (vL), Redlich-Kister (RK) (1948), Huron-Vidal (HV) (1979) and Kurihara-Tochigi-Kojima (KTK) (1987). The results show that for the present mixtures the □ correlation succeeds in more mixtures than □ correlations do by the above equations of state, the three-parameter Eos are not superior to the two-parameter EOS for □ correlation, and in general, the local composition type mixing rules improve correlation except systems of water + methanol, water + ethanol, and cyclohexane + n-decane. Compared to other mixing rules, the vdW mixing rule is applicable to the least number of mixtures. It is suitable for nonpolar systems with lower number of carbon of □ correlation and for nonpolar systems for □ correlation when incorporated into the two-parameter EOS. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。