| 估算纯物质蒸发焓的新方法 |
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| 引用本文： | 梁英华,张俊杰.估算纯物质蒸发焓的新方法[J].河北理工大学学报（自然科学版）,2001,23(2). |
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| 作者姓名： | 梁英华 张俊杰 |
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| 作者单位： | 河北理工学院 化工系, |
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| 摘 要： | 提出了估算纯物质在不同温度下蒸发焓的新方法——基团对应状态法，并引入拟临界温度的概念，该方法既有对应状态的广泛性又具有基团贡献法的简单性，仅需要物质的正常沸点数据。用387种化合物的1 336个数据点回归出了方程的参数以及65种基团对临界温度的贡献值。
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| 关 键 词： | 蒸发焓 基团贡献法 对应状态原理 临界温度 |
A new method for predicting the enthalpys of vaporization of pure compounds |
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| LIANG Ying-hua,ZHANG Jun-jie.A new method for predicting the enthalpys of vaporization of pure compounds[J].Journal of Hebei Institute of Technology(Natural Science Edition),2001,23(2). |
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| Authors: | LIANG Ying-hua ZHANG Jun-jie |
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| Abstract: | In the paper,a new estimation equation for predicting the enthalpy of vaporization was proposed by combining the corresponding-state theory and Group-contribution method.The new method not only retains the simplicity and accuracy of the group-contribution method,but also has the extensive predictability and flexibility of the corresponding-state method.The contribution values of 65 groups were obtained by correlating the 1336 experimental data of enthalpy of vaporization of 387 pure compounds. |
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