32号机油在超、亚临界CO_2中的溶解度测定

Determination of Solubilities of No.32 Machine Oil in Carbon Dioxide under Supercritical and Subcriical Pressures

使用自制的高压试验装置，在２９８．２Ｋ、３１３．２Ｋ和３２３．２Ｋ３个温度下，压力为７—１５ＭＰａ的范围内，测定了３２号机油在ＣＯ２中的溶解度数据。结果表明，ＣＯ２的密度是影响机油溶解度的主要因素。同时。

The solubilities of No.32(China) machine oil in carbon dioxide were determined with a recirculation apparatus at temperatures 298 2K,313 2K and 323 2K,and under pressure range of 7MPa to 15MPa.The maximum solubility obtained at T=298 2K and P=14 85MPa is 0 3429g oil per mole CO 2.The results show that the solubilities depend mainly on the densities of carbon dioxide,and meanwhile the effect of temperature cannot be neglected.