Dew Points of Binary Propane or n-butane + Carbon Dioxide, Ternary Propane or n-butane + Carbon Dioxide + Water, and Quaternary Propane or n-butane + Carbon Dioxide + Water + Meth

详细信息    查看全文

• 作者：L. Gil ; S. Avila ; P. Garc&iacute ; a-Gimé ; nez ; S. T. Blanco ; C. Berro ; S. Otin ; and I. Velasco
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2006
• 出版时间：May 24, 2006
• 年：2006
• 卷：45
• 期：11
• 页码：3974 - 3980
• 全文大小：90K
• 年卷期：v.45,no.11(May 24, 2006)
• ISSN：1520-5045

文摘

Dew points have been measured for binary propane or n-butane + carbon dioxide mixtures at pressures from1.2 × 10⁵ to 34.9 × 10⁵ Pa and temperatures from 192.6 to 274.8 K, four ternary propane or n-butane +carbon dioxide + water mixtures from 1.1 × 10⁵ to 20.7 × 10⁵ Pa and temperatures from 247.5 to 289.0 K,and eight quaternary propane or n-butane + carbon dioxide + water + methanol mixtures from 1.1 × 10⁵ to21.8 × 10⁵ Pa and temperatures from 249.8 to 289.9 K. The results are analyzed in terms of a predictiveEF-EOS excess-function equation of state method based on the zeroth-approximation of Guggenheim's reticularmodel. This method has been chosen because it can be used to adequately predict the dew points of all themixtures of our interest in the dew temperature and pressure ranges. In fact, the model reproduces theexperimental dew-point temperature data within an AAD (absolute average deviation) of 1.6 and 1.3 K forthe binary systems, between 0.1 and 2.5 K for the ternary systems, and between 0.0 and 5.1 K for the quaternarysystems. The experimental results obtained for ternary propane or n-butane + carbon dioxide + water mixturesat pressure values higher than 5 × 10⁵ Pa were also compared to a predictive EOS (equation of state) model.It reproduced experimental dew-point temperature data within AAD between 0.0 and 5.5 K.