High-pressure experimental data of CO 2 + mitotane and CO 2 + ethanol + mitotane mixtures

This work presents new experimental phase equilibrium data for mitotane in supercritical CO 2 and mitone in supercritical CO 2 plus ethanol. The synthetic-static method in a high-pressure variable-volume view cell was used to measure the solid-fluid (SF) and the fluid-fluid (FF) equilibrium data. The phase equilibrium experiments were carried out in the temperature range from (298 to 333) K and in the pressure range from (3.44 to 21.84) MPa. The Peng-Robinson equation of state (PR-EoS) was used for describing the fluid phases, and an expression for the fugacity of pure solid mitotane was used for representing the solid phase. This made it possible to model the SF and FF equilibrium data for the CO 2 + mitotane mixtures. Fair agreement was found between experimental and calculated values.Fil: Giufrida, W. M.. Universidade Estadual de Maringá; BrasilFil: Rodriguez Reartes, Sabrina Belen. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; ArgentinaFil: Alonso, C. G.. Universidade Estadual de Maringá; BrasilFil: Zabaloy, Marcelo Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; ArgentinaFil: Cabral, V. F.. Universidade Estadual de Maringá; BrasilFil: Tavares, F. W.. Universidade Federal do Rio de Janeiro; BrasilFil: Cardozo Filho, L.. Universidade Estadual de Maringá; Brasi

Extraction of passion fruit seed oil using supercritical CO₂: a study of mass transfer and rheological property by Bayesian inference

The extraction of oil from passion fruit seeds using supercritical CO₂ was studied. Experimental data were obtained for extraction conducted at 15, 20 and 25 MPa; at temperatures of 40 and 50 °C with CO₂ flow rates of 1.5 and 3.0 mL min^–1. An increase in the pressure, temperature and CO₂ flow rate increased the yield. The maximum extraction yield obtained was 18.5%. The mass transfer coefficients for passion fruit oil were found to be 8.496 3 10-5 s^-1 at 25 MPa, 50 °C and 3 mL s^–1 CO₂ flow rate. Dilatant fluid behavior was observed in all tests of the rheological study.<br><br>Se ha estudiado la extracción de aceite de semillas de frutos de la pasión con CO₂ supercrítico. Los datos experimentales se obtuvieron para una extracción llevada a cabo a 15, 20 y 25 MPa; a temperaturas de 40 y 50 °C y a flujos de CO₂ de 1,5 y 3,0 mL min^–1. Un incremento de la presión, la temperatura y del flujo de CO₂ aumentó el rendimiento. El máximo rendimiento de la extracción obtenida fue de 18,5%. Los coeficientes de transferencia de masa para el aceite de fruta de la pasión encontrados fueron 8,496 3 10-5 s^–1 a 25 MPa, 50 °C y 3 mL s^–1 de flujo de CO₂. Se observó un comportamiento de fluido dilatante en todos los ensayos reológicos