溶解度计算方法、装置及存储介质
By adding perturbations to the mole fraction of multi-component mixtures and constructing the Jacobian partial derivative matrix, the PCSAFT model was used to solve the problems of high complexity and slow convergence speed in multi-component vapor-liquid phase equilibrium calculations. Fast and accurate convergence of phase equilibrium points was achieved, and the calculation results are in good agreement with experimental data.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- EAST CHINA UNIV OF SCI & TECH
- Filing Date
- 2024-08-05
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies suffer from high computational complexity, slow convergence speed, and difficulty in accurately converging to the phase equilibrium point when dealing with vapor-liquid phase equilibrium of multi-component mixtures, especially in complex systems such as high-concentration and polar solutions.
By adding perturbations to the mole fractions of multiple components, a multidimensional Jacobian partial derivative matrix is constructed, and each component is updated synchronously. Using the PCSAFT residual Helmholtz energy model and thermodynamic equilibrium conditions, the system converges quickly and accurately to the phase equilibrium point.
It achieves rapid and accurate convergence of the vapor-liquid phase equilibrium problem of multi-component mixtures, with the average error between the calculation results and experimental data not exceeding 3.98%, thus improving computational efficiency and accuracy.
Smart Images
Figure CN119007877B_ABST