Current multi-component, multiphase pseudo-potential lattice Boltzmann models have thermodynamic inconsistencies that prevent them to correctly predict the thermodynamic phase behavior of partially miscible multi-component mixtures, such as hydrocarbon mixtures. This paper identifies these inconsistencies and attempts to design a thermodynamically consistent multi-component, multiphase pseudo-potential lattice Boltzmann model that allows mass transfer across the phase interfaces and is capable to predict the phase behavior of typically partially miscible hydrocarbon mixtures. The designed model defines the total interaction force for the entire phase and split the force into individual components. Through a properly derived force split factor associated with the volatility of each component, the model can achieve precise thermodynamic consistency in multi-component hydrocarbon mixtures, which is described by the iso-fugacity rule.

当前的多组分，多相伪电位晶格Boltzmann模型具有热力学不一致之处，从而无法正确预测部分可混溶的多组分混合物（如烃类混合物）的热力学相行为。本文确定了这些不一致之处，并尝试设计一种热力学上一致的多组分，多相假电势格子玻尔兹曼模型，该模型允许在相界面上进行质量传递，并能够预测通常部分混溶的烃混合物的相态。设计的模型定义了整个阶段的总交互作用力，并将该作用力拆分为单个分量。通过适当推导的与每个组件的波动性相关的力分配因子，