摘要
将水作为溶剂主体,通过热力学分析导出了氧气在纯水中的溶解度模型。将醋酸作为有机溶剂添加剂,用Stechenov关联式表征了醋酸对氧气在水中的溶解度的影响。模型参数由文献数据回归得到,模型计算得到的溶解度值与文献报导的实验值进行比较吻合良好。建立的氧气在醋酸水溶液中的溶解度机理模型可用于关联和预测不同醋酸浓度下不同温度和压力时氧气在醋酸水溶液中的溶解度。
The chemical potential, entropy and partial molar heat capacity of dissolved oxygen were combined to develop a rigorous thermodynamic model to estimate saturated concentration of oxygen in pure water. The Setchenov relation was used to predict the effect of acetic acid on the solubility of oxygen in water. The model parameters were regressed from the literature data. The solubility data of oxygen in both pure water and aqueous acetic acid from the published experimental data were consistent with the solubility data estimated by the developed solubility model, which indicated that the thermodynamic model was applicable for the estimation of solubility for oxygen in aqueous acetic acid at different concentration, different temperature and pressure.
出处
《聚酯工业》
CAS
2005年第5期18-21,共4页
Polyester Industry
