ABSTRACT

In this chapter, main technologies for concentration of dilute aqueous solutions of ethanol obtained during the fermentation step are discussed. The main ethanol dehydration technologies, including the most promising, are disclosed as well. The main advantages and drawbacks of the discussed dehydration schemes are included as well. The utilization of process simulation tools is illustrated through the analysis of different technological schemes for ethanol separation and dehydration. The role of thermodynamic-topological analysis during the conceptual design of separation and dehydration technological congurations is also highlighted.