基于 PR 方程的气液相平衡计算

Calculating of Equilibrium with EOS(PR)

流体的气液相平衡一直是研究的重点，目前计算大多采用由实验数据进行回归模拟的半理论方法，然而实验数据多为ＰＴＶｘ数据，应用受到很大限制；本文以此为目标，首先以变交互作用参数Ｋｉｊ的方法采用ＰＲ方程进行气液相平衡计算；然后将ＰＲ方程与ＨＢＴ式结合，使计算结果尤其是液相摩尔比容的精度得到较大提高．

Vapom-hquid equilibrium is always focnsed on, its calculating mostly is a half-theory at present which retreats and simulates the experimental data,it is limited because the data mostly is PVTx data. therefore the EOS(PR)is joined with HBT equation to calculate equilibrium with inconstant K ij in this paper, and result computed the liquid molar volum is more accurate.