| 稀溶液汽液平衡的气相色谱测定模型研究 |
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| 引用本文： | 刘洪勤,汪文川,卢焕章. 稀溶液汽液平衡的气相色谱测定模型研究[J]. 北京化工大学学报(自然科学版), 1991, 0(1) |
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| 作者姓名： | 刘洪勤 汪文川 卢焕章 |
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| 作者单位： | 北京化工学院化学工程系(刘洪勤，汪文川)，北京化工学院化学工程系(卢焕章) |
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| 摘 要： | 通过较严格的数学处理,导得了气相色谱法测定稀溶液汽液平衡的基本方程,证明了现有两个模型只是本模型的特例,将最近提出的稀溶液活度系数模型引入基本方程中,得到了简单易用的工作方程,克服了原同类方程难以处理的困难;计算结果表明,浓度越高,本文模型的修正越重要。最后,还导得色谱柱内气相流速的较严格的计算公式。
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| 关 键 词： | 汽液平衡 稀溶液 气相色谱测定 数学模型 |
A New Model for the Gas Chromatographic Measurements of Vapor Liquid Equilibrium of Dilute Solutions |
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| Liu Hongqin Wang Wenchuan Lu Huanzhang. A New Model for the Gas Chromatographic Measurements of Vapor Liquid Equilibrium of Dilute Solutions[J]. Journal of Beijing University of Chemical Technology, 1991, 0(1) |
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| Authors: | Liu Hongqin Wang Wenchuan Lu Huanzhang |
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| Affiliation: | Department of Chemical Engineering |
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| Abstract: | Based on the strict mathematical deduction, a fundamental equation is proposed for the gas chromatographic measurement of vapor liquid equilibrium of dilute solutions. This equation reduces to the two equations proposed by other authors in special cases. Then an activity coefficient model for dilute solutions is applied and a very simple working equation is obtained. The calculation results show that our model is more applicable for denser concentrations than the others. Finally a modified equation for the gas velosity in G C column is proposed for the measurement under denser coneetrations. |
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| Keywords: | Vapor liquid equilibrium dilute solutions G C measurement mathematical model. |
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