Experimental solubility determinations of binary and ternary systems that involve fatty acids (palmitic acid and oleic acid) in supercritical carbon dioxide (sc-CO₂) were performed using an experimental system based on the static synthetic method with online sampling. The solubility data of squalene + sc-CO₂, and palmitic acid + sc-CO₂ were obtained and compared with data from the international literature resulting in the validation of the experimental method. Experimental solubility measurements of squalene + palmitic acid + sc-CO₂, and squalene + oleic acid + sc-CO₂ were studied at pressures from 9.00 to 30.38 MPa and temperatures between 313.30 and 333.48 K. The standard uncertainties for temperature and pressure were evaluated to be 0.02 K and 0.02 MPa, respectively. The relative combined expanded uncertainty (k = 2) for the composition was estimated to be U_r(y) = 0.051. Chrastil, del-Valle and Aguilera, Bartle et al., and Kumar and Johnston models were used to correlate the experimental solubility data. The modeling results validated the self-consistency of experimental data in the entire range of measurement.

中文翻译：

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角鲨烯和脂肪酸在二氧化碳中的超临界条件溶解度：二元和三元体系

使用基于静态合成方法的在线采样实验系统，对涉及脂肪酸（棕榈酸和油酸）在超临界二氧化碳（sc-CO ₂）中的二元和三元系统的溶解度进行了实验测定。获得了角鲨烯+ sc-CO ₂和棕榈酸+ sc-CO ₂的溶解度数据，并将其与国际文献的数据进行了比较，从而验证了该实验方法的有效性。角鲨烯+棕榈酸+ sc-CO ₂和角鲨烯+油酸+ sc-CO _2的实验溶解度测量在9.00至30.38 MPa的压力和313.30至333.48 K的温度下进行了研究。温度和压力的标准不确定度分别为0.02 K和0.02 MPa。该组合物的相对组合扩展不确定度（k = 2）估计为U _r（y）= 0.051。Chrastil，del-Valle和Aguilera，Bartle等人以及Kumar和Johnston模型用于关联实验溶解度数据。建模结果验证了在整个测量范围内实验数据的自洽性。