Fractionation of Copaiba Oil resin (Copaifera officinalis) by Supercritical Desorption in Packed Columns with γ-Alumina as Adsorbent

摘要

In this work, γ-Alumina adsorbents loaded with Copaiba oil resin, a real liquid system, were submitted to desorption with supercritical CO_2 in order to investigate the feasibility of fractionating the terpene compounds. The desorption experiments were carried out in a Speed SFE Unit (Applied Separations, USA) by stepwise pressure increase (8, 12, 15, 25, and 40 MPa), temperature of 323 K, and solvent flow rate of Q_(CO_2) = 9.0 L/min, as shown in Figure1.