Brazilian Journal of Chemical Engineering
versão On-line ISSN 0104-6632
MELO, S. A. B. VIEIRA DE; PALLADO, P.; GUARISE, G. B. e BERTUCCO, A.. HIGH-PRESSURE VAPOR-LIQUID EQUILIBRIUM DATA FOR BINARY AND TERNARY SYSTEMS FORMED BY SUPERCRITICAL CO2, LIMONENE AND LINALOOL. Braz. J. Chem. Eng. [online]. 1999, vol.16, n.1, pp. 7-17. ISSN 0104-6632. http://dx.doi.org/10.1590/S0104-66321999000100002.
The feasibility of deterpenating orange peel oil with supercritical CO2 depends on relevant vapor-liquid equilibrium data because the selectivity of this solvent for limonene and linalool (the two key components of the oil) is of crucial importance. The vapor-liquid equilibrium data of the CO2-limonene binary system was measured at 50, 60 and 70oC and pressures up to 10 MPa, and of the CO2-linalool binary system at 50oC and pressures up to 85 bar. These results were compared with published data when available in the literature. The unpublished ternary phase equilibrium of CO2-limonene-linalool was studied at 50oC and up to 9 MPa. Selectivities obtained using these ternary data were compared with those calculated using binary data and indicate that a selective separation of limonene and linalool can be achieved.
Palavras-chave : vapor-liquid equilibrium; supercritical CO2; orange oil; experimental data.