通过改进物性参数估计提高1,10-癸二酰在超临界CO_2流体中溶解度的计算精度

Improve the calculation accuracy of 1,10-decanediol's solubility in supercritical carbon dioxide by improving its physical parameters

关于1,10-癸二酰在超临界CO_2流体中溶解度计算精度的改进,是在利用Aspen Plus对其物性参数进行模拟的基础上,采用PR方程对其溶解度数据进行关联和计算。溶解度的计算值与实验值符合很好,最大相对偏差为2.53%,最大计算方差为8.83×10^(-5)。该方法为改进固体在超临界流体中溶解度数据计算关联精度提供了一种新的途径。

About the improvement of calculating the 1,10-decanediol＇s solubility in supercritical carbon dioxide, was on the basis of using Aspen Plus to simulate the 1,10-decanediol＇s physical parameters, then use PR equation to associate and calculate its solubility date. The calculated value of solubility was in good line with the experimental value, the maximum relative deviation was 2.53 %, the largest average relative deviation was 1.32 %. The method provides a new way to improve the solubility data of solid＇s calculating correlation precision in the supercritical fluid.