Preliminary design for simultaneous saccharification and fermentation stages for ethanol production from sugar cane bagasse
González Cortés, Meilyn
González Suárez, Erenio
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The interest of ethanol production from agro-industry residues as raw material has deservedgreat attention since these feedstocks may constitute an alternative to fossil fuels as wellas represent beneficial effects both from economic and environmental point of view. Thesugar cane bagasse (SCB) represents an available and cheap opportunity of raw material.The use of lignocellulosic biomass as a feedstock needs a pretreatment stage to breakdownlignocellulosic complex into lignin, cellulose and hemicelluloses, then the hydrolysis stageconverts cellulose into fermentable glucose, and finally, in order to increase the glucose yield,simultaneous saccharification and fermentation (SSF) process is carried out. In this work apreliminary design for these stages is proposed. A mixed integer linear programming modelis formulated in order to obtain the optimal number of parallel units in each stage and theirsizes (plant configuration and capacity). The production planning along the time horizonof one year is determined, given by the number of batches to be processed and its size.Different production scenarios are analyzed, for which the investment cost is minimized,and economic profitability indicators are calculated.
Este documento es Propiedad Patrimonial de Publication of the Institution of Chemical Engineers y se deposita en este Repositorio solo con fines académicos y exclusivamente para usuarios de la UCLV hasta tanto sea liberado por la revista Chemical Engineering Research and Design, respetando la legislación vigente en Cuba sobre derecho de Autor y la política de acceso de la mencionada publicación periódica.