Cubic equations of state (EoS) remain the most widely used models in chemical engineering, and their predictive capabilities are highly dependent on mixing rules (MR). Considered as one of the most accurate, Wong Sandler's (WS) MR, have been generalized in this work, to allow its use with all 2-parameter (PR, SRK, …) and 3-parameter (PT, mPT, NEOS, …) cubic EoSs. The procedure for implementing the generalized WS MR is presented and tested with PR, PT and its variants (mPT and NEOS) on vapor-liquid equilibrium (VLE) and density data on various classes of mixtures for different types of use (hydrogen, CCUS, refrigeration). The results clearly show the benefits of this type of MR, especially around the critical point and for density data without considering volume translation frequently used with PR and SRK EoS.

中文翻译：

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将 Wong-Sandler 混合规则推广到一般三次状态方程：工业利益系统（氢气、CCUS、制冷）的使用示例


三次状态方程 (EoS) 仍然是化学工程中使用最广泛的模型，其预测能力高度依赖于混合规则 (MR)。 Wong Sandler (WS) MR 被认为是最准确的之一，在这项工作中得到了推广，允许其与所有 2 参数（PR、SRK 等）和 3 参数（PT、mPT、NEOS 等）一起使用。 ）立方EoS。提出了实施广义 WS MR 的程序，并使用 PR、PT 及其变体（mPT 和 NEOS）对不同用途（氢气、CCUS、冷藏）。结果清楚地显示了此类 MR 的优势，尤其是在临界点附近和密度数据方面，无需考虑 PR 和 SRK EoS 经常使用的体平移。