论文标题
通过使用H键模型,果糖在水乙醇和水甲醇混合物中的溶解度
Solubility of fructose in water-ethanol and water-methanol mixtures by using H-bonding models
论文作者
论文摘要
已经测量了果糖在水 - 甲醇和水甲醇混合物中的溶解度,以及在20、30和40°C的每种溶液中的密度在一定范围的水质量百分比中。提出了一种称为H键修改的Wilson的新型热力学模型,以令人满意地描述溶解度数据。研究了H键修改的Uniquac和H键NRTL,并进行了这三个模型之间的比较。在25、40和60°C下,在这些系统中果糖溶解度的文献数据用于计算这三个模型的可调参数。这项研究中报告的解决方案密度也成功地相关。比较结果表明,H键修改的Wilson模型在这三个模型之间的AAD%在文献溶解度数据和密度数据的相关性方面具有最低的AAD%。然后,使用本研究中报道的新实验数据评估了每个模型的预测能力。预测结果表明,在溶解度数据预测时,H键修改的独立性是这三个模型之间最准确的模型。
Solubility of fructose in water-ethanol and water-methanol mixtures and density of each solution at 20, 30 and 40°C over a range of water mass percentage have been measured. A new thermodynamic model called H-bonding modified Wilson was proposed to describe solubility data satisfactorily. H-bonding modified UNIQUAC and H-bonding NRTL were studied and a comparison between these three models was performed. Literature data on solubility of fructose in these systems at 25, 40 and 60°C were used to calculate adjustable parameters of these three models. Also the density of solutions reported in this study was correlated successfully. The comparison results showed that H-bonding modified Wilson model has the lowest AAD% between these three models in correlation of literature solubility data and density data. Then prediction capability of each model was evaluated with the new experimental data which was reported in this study. The prediction results showed that H-bonding modified UNIQUAC is the most accurate model between these three models in prediction of solubility data.