Preliminary design for simultaneous saccharification and fermentation stages for ethanol production from sugar cane bagasse
Fecha
2017-09-01
Autores
Albernas Carvajal, Yailet
Corsano, Gabriela
González Cortés, Meilyn
González Suárez, Erenio
Título de la revista
ISSN de la revista
Título del volumen
Editor
Resumen
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.
Descripción
Palabras clave
Simultaneous saccharification andfermentation, Batch design, Optimization, Lignocellulosic ethanol