Abstract Two-parameters cubic EOSs are not reliable for volumetric predictions. Three-parameters cubic EOSs are not computationally efficient. A new format of two-parameters cubic EoS is presented, which has volumetric predictions similar to that of three-parameters cubic. The proposed EoS has an advantage over the PR-EOS in the compositional phase behavior predictions and is highly reliable for volumetric predictions without the use of either optimized critical parameters or volume-shift parameters. The present form of the two-parameters cubic EoS has AARD

中文翻译：

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一种具有三参数优点的新的二参数三次状态方程

摘要 二参数立方 EOS 对体积预测不可靠。三参数立方 EOS 的计算效率不高。提出了一种新的双参数立方 EoS 格式，其具有类似于三参数立方的体积预测。所提出的 EoS 在成分相行为预测方面优于 PR-EOS，并且在不使用优化的关键参数或体积位移参数的情况下对体积预测具有高度可靠性。双参数三次 EoS 的当前形式有 AARD