INGAR   05399
INSTITUTO DE DESARROLLO Y DISEÑO
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
APPROXIMATE DESIGN MODELING FOR THE BIOETHANOL OBTAINING TECHNOLOGY BY SIMULTANEOUS SACCHARIFICATION AND FERMENTATION OF BAGASSE
Autor/es:
ALBERNAS CARVAJAL, YAILET; MARRERO VEGA, OVIDIO; GONZALEZ SUAREZ, ERENIO; CORSANO, GABRIELA
Lugar:
Cayo Santamaría
Reunión:
Simposio; VI Simposio Internacional de Química (SIQ´2016); 2016
Resumen:
The second generation ethanol is a current study issue due to the interest on renewable fuel sources. The bagasse is presented as an available and cheap opportunity of raw material in the Cuban context. In this work we propose and develop an optimal design model for an ethanol plant, considering the bagasse pretreatment stages for subsequent simultaneous saccharification and fermentation (SSF). The SSF variant, as its name indicates, has the advantage of carrying out simultaneously the enzymatic hydrolysis and fermentation stages on the same processing unit, obtaining directly ethanol as a product. Therefore, the separate enzymatic hydrolysis stage is removed reducing the total number of equipment. Through a mixed integer linear programming (MILP) model, the design problem is formulated for determining the optimal configuration (number of equipment operating out of phase) and capacity (size of equipment) of pretreatments and SSF stages. The resulting model is optimized by GAMS-CPLEX solver. The production planning along the time horizon of one year is determined, given by the number of batches to be processed and its size. A formulation based on fixed sizes factors and times for discontinuous stages is proposed, which were obtained by experimental results of Albernas (2014) and Albernas et al. (2015). Different production scenarios are analyzed, for which the investment cost is minimized, and economic profitability indicators are calculated.