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。
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.
出处
《石油化工应用》
CAS
2012年第1期61-65,共5页
Petrochemical Industry Application
关键词
状态方程
改进
极性物质
equation of state
modification
polar substance
