Simulación de un sistema de extracción supercrítica.

Abstract

Abstract:The purpose of this titling work was to simulate a supercritical extraction system using ASPEN PLUS V10 software. To predict the properties of pure compounds and of the antioxidant-CO2 mixture, the Redlich Kwong Aspen (RKA) state equation was used, since it presented favorable results when working in supercritical conditions. The following elements of guava were selected as study compounds: levoglucosan as carbohydrate, all-lycopene and carotene as lipophilic antioxidants, quercetin as hydrophilic antioxidant, water; ethanol and CO2 as solvents. Pressure conditions (100, 150, 200, 300 bar), temperature (35, 40, 45, 60 ° C) and CO2 flow (1: 1, 2: 1 and 3: 1 CO2-compounds) were varied. An amount of 16.7 g / h of plant matter was used, and a flow of 200 L / h of CO2. The highest performance obtained in simulation was 0.8% at conditions of 40 ° C, 100 bar and 1: 1 CO2-antioxidant ratio; This is because the system developed in simulation is considered ideal. This demonstrates that this software can be used to simulate antioxidant extraction systems at supercritical conditions.