Modelling of Adsorptive-distillation of Ethanol-water Using Natural and Synthetic Zeolites as Adsorbent

To cite this article: Megawati et al. (2018). Modelling of adsorptive-distillation of ethanolwater using natural and synthetic zeolites as adsorbent. J. Phys. Sci., 29(Supp. 2), 243–256,


The purpose of this research is to study the modeling of adsorptive-distillation (AD) on ethanol-water mixture purification using natural and synthetic zeolites as adsorbent. The synthetic zeolite type used was zeolite 3A. AD is an effective way to purify ethanol-water mixture so that it can produce pure ethanol as fuel. Natural and synthetic zeolites as adsorbent are quite promising for industrial application. The experiment was conducted in a batch operation. Four AD modellings are developed based on four different simplifications, i.e., quasi-steady-state with no axial dispersion (Model 1), unsteady-state with no axial dispersion (Model 2), quasi-steady-state with axial dispersion (Model 3) and unsteady-state with axial dispersion (Model 4). The equilibrium equation correlating water content in vapour and water content in adsorbent particle was approximated by Henry’s law model.


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