| 一个四次状态方程的改进 |
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| 引用本文： | 臧连运. 一个四次状态方程的改进[J]. 石油化工应用, 2012, 31(1): 61-65 |
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| 作者姓名： | 臧连运 |
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| 作者单位： | 中国五环工程有限公司,中国武汉,430226 |
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| 摘 要： | 通过改进一个四次状态方程(Yun et al.,Fluid Phase Equilibria 187-188,275-298(2001))的参数计算方法,将其参数关联为物质临界参数和偶极矩的函数。维持了原方程简介形式并扩大了原方程的使用范围,使方程在计算极性物质汽液平衡及饱和热力学性质时不再需要特定常数,而是使用具有预测性的通式。
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| 关 键 词： | 状态方程 改进 极性物质 |
Modification of a quartic equation of state |
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| ZANG Lianyun. Modification of a quartic equation of state[J]. Petrochemical Industry Application, 2012, 31(1): 61-65 |
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| Authors: | ZANG Lianyun |
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| Affiliation: | ZANG Lianyun (Wuhuan Engineering Co.,Ltd.,Wuhan Hubei 430226,China) |
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| Abstract: | A new approach of calculating the parameters of a quartic equation of state(EOS) (Yun et al.,Fluid Phase Equilibria 187 -188,275 -298(2001)) was suggested.The parameters of the EOS were correlated to critical constants as well as dipole moment. Keeping the simple form of the equation,the modified quartic EOS was extended to both polar and non-polar substances without any substance-dependent empirical constants which are necessary in the original quartic EOS in calculations of polar substances. |
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| Keywords: | equation of state modification polar substance |
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