Abstract:
To separate ethanol from aqueous mixture of 15 %wt, ethanol extraction including recovery system was simulated with C3-C10 n-paraffins, C6-C8 aromatics, C5-C7 naphthene, C5-C10 1 alcohols and hydrocarbon mixtures, i.e. LPG, reformate and condensate. With burane, the purity of ethanol was highest of 99.21 %wt. For extraction with LPG, the purity of ethanol produced was 98.97-99.21 %wt depending on the fraction of propane. While with both reformate and condensate, the ethanol purity was just above 99 %wt. For at least 99% wt ethanol produced, the solvent used was able to be recovered completely. In the circumstances, the process required energy about 1.5-2.0 MJ per kg of feed mixture for propane, butane and LPG, while the energy requirement became tenfold for either reformate or condensate