Modeling the Quasi-Equilibrium of Multistage Phytoextractions
2016
Dreisewerd, Björn | Merz, Juliane | Schembecker, Gerhard
A model describing multistage leaching phytoextractions based on a nonideal quasi-equilibrium line of an inverted McCabe–Thiele diagram is proposed in this study. The model is able to simulate the temperature dependence of the amount of extractable target component. It was applied to the extraction of artemisinin from Artemisia annua with ethanol at different temperatures. All model parameters were determined via single-stage extractions only. The model was able to represent the experimental data of multistage leaching extractions, including the temperature-dependent extractable amount of artemisinin. Therefore, the model can be used to reduce the number of experiments and accelerate the process design of phytoextraction processes.
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