Abstract Xylitol is a sugar alcohol that can be produced from biomass. It has applications in the food, pharmaceutical and dental sectors. As a building block of the chemical industry, it can be used in the production of fuels and solvents. The development of productive processes based on this material requires studies related to reactional media and separation systems. Solid-liquid equilibrium experiments associated with the application of mathematical models assist in the search for solutions to these demands. Based on the importance of the subject, a study is presented on xylitol solubility in binary liquid solutions formed by N,N-dimethylformamide, ethylene glycol and 1,2-propylene glycol at different temperatures. The experimental results were treated by two equations of state, PC-SAFT and CPA, and by the UNIFAC activity coefficient model. A dependence of the solubility on temperature and on the composition of the binary liquid solution, was observed. The efficient application of the models generated binary interaction parameters for the equations of state and revealed the predictive capacity of the UNIFAC model.

中文翻译：

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木糖醇在 DMF + 乙二醇或 1,2-丙二醇中的溶解度：使用 PC-SAFT 和 CPA 状态方程以及 UNIFAC 活性系数模型进行测量和建模

摘要 木糖醇是一种可以从生物质中生产的糖醇。它在食品、制药和牙科领域都有应用。作为化学工业的基石，它可用于生产燃料和溶剂。基于这种材料的生产过程的开发需要与反应介质和分离系统相关的研究。与数学模型应用相关的固液平衡实验有助于寻找满足这些需求的解决方案。基于该课题的重要性，研究了木糖醇在不同温度下由N,N-二甲基甲酰胺、乙二醇和1,2-丙二醇形成的二元液体溶液中的溶解度。实验结果用两个状态方程PC-SAFT 和CPA 以及UNIFAC 活度系数模型处理。观察到溶解度对温度和二元液体溶液组成的依赖性。模型的有效应用为状态方程生成了二元交互参数，并揭示了 UNIFAC 模型的预测能力。