کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
229955 | 1427361 | 2016 | 9 صفحه PDF | دانلود رایگان |
• Characterization of bergamot oil by means of four key components.
• Experimental data of the system supercritical CO2-linalyl acetate at 323 K.
• Experimental data of the system supercritical CO2-bergamot oil at 323 K, 343 K.
• Modelling of experimental results with PC-SAFT and PR equations of state.
In this paper experimental equilibrium data of the system CO2 – bergamot essential oil are reported at 323 K and 343 K, in the pressure range 7.8–13.1 MPa. Furthermore equilibrium data for the subsystem CO2 – linalyl acetate at 323 K are reported in the pressure range 7.0–10.3 MPa. The equilibrium data are predicted by means of two thermodynamic models based on Peng – Robinson and PC-SAFT equations of state. In particular the bergamot essential oil is described as a mixture of four components: limonene, linalool, linalyl acetate and β-caryophyllene. In the models regression parameters are calculated from data of binary subsystems, CO2 – limonene, CO2 – linalool and CO2-β-caryophyllene, and CO2 – linalyl acetate. Therefore both of the models are predictive with regard to the bergamot oil and show quite a good agreement (especially the Peng Robinson one) with respect to the experimental data.
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Journal: The Journal of Supercritical Fluids - Volume 116, October 2016, Pages 1–9