Biofuel produced from biomass is one of the main alternatives for reducing the use of fossil fuels. This work evaluates the ethanol production from different mixtures of banana waste (pseudostem, peels, and rejected fruit) through process simulations using the Aspen Hysys® software. The mixtures analyzed were pseudostem-rejected fruit, pseudostem-peel, and the mixture of the three wastes (in the proportion that they are discarded after harvesting the fruit). Results indicated the use of a proportion of 35% pseudostem and 65% rejected fruit and, a rate of 50% of each residue for the mixture of the peel with pseudostem. The best scenario studied was using a mixture of three banana wastes. In this case, the ethanol content in wine could be increased by about 18%. Besides demonstrating that using a mixture of residues is better than one alone, the simulations showed that this scenario enables thermal integration where the process energy demand could be reduced by up to 68.7%, with a payback of only 1.7 years. Carbon emissions were also reduced by 68.65%.
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