کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
231272 | 1427429 | 2010 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Determination of critical properties of pure and multi-component mixtures using a “dynamic–synthetic” apparatus Determination of critical properties of pure and multi-component mixtures using a “dynamic–synthetic” apparatus](/preview/png/231272.png)
In this work, we use an efficient and reliable “dynamic–synthetic” method for the measurement of critical properties of a variety of pure compounds, binary mixtures, and one ternary mixture. The critical phenomenon is observed via the critical opalescence in a view cell, which withstands conditions up to 543 K and 20 MPa. Excellent agreements were obtained between the measured pure compounds’ properties and those listed in recent databases. Among the pure compounds measured, several refrigerants less well described in open literature (C3F6, C3F6O, R365mfc) have been compared with conventional predictive models. The critical profiles of associating, azeotropic systems ethanol + n-alkanes (C4–C8) are presented, as well as the critical surfaces for the ternary system n-pentane + ethanol + n-hexane. We present forms of the Cibulka and Singh's equation suitable for correlating ternary critical properties.
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Journal: The Journal of Supercritical Fluids - Volume 55, Issue 2, December 2010, Pages 545–553