TY - JOUR
T1 - Organosolv Pretreatment of Sugar Cane Bagasse for Bioethanol Production
AU - Terán Hilares, Ruly
AU - Swerts, Mateus Pereira
AU - Ahmed, Muhammad Ajaz
AU - Ramos, Lucas
AU - Da Silva, Silvio Silvério
AU - Santos, Júlio César
N1 - Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/4/12
Y1 - 2017/4/12
N2 - A reduction in glycerol price has been observed in the last years, considering it is a byproduct of biodiesel production. This fact has motivated studies about alternative uses for this compound, as in pretreatment of lignocellulosic biomass to produce ethanol, another biofuel of interest. In this context, glycerol acid-pretreatment of sugar cane bagasse (SCB) was evaluated in terms of temperature (80-120°C), solid loading (2.5-7.5%), glycerol (85-95%) and acid concentrations (0.5-3%), and reaction time (10-60 min), using a 25-1 factorial design. The cellulose digestibility was further optimized for the variables temperature (120-130°C), acid/SCB mass ratio (5-15%), and time (20-60 min). The optimal conditions were obtained at 130°C temperature, 15% acid/SCB mass ratio, and 57.5 min reaction time, yielding a 68.5% digestibility. Moreover, a considerable amount of ethanol, 0.38 g/g biomass (0.57 g/L·h of productivity), was achieved using Saccharomyces cerevisiae, which also shows the efficacy of this pretreatment. (Figure Presented).
AB - A reduction in glycerol price has been observed in the last years, considering it is a byproduct of biodiesel production. This fact has motivated studies about alternative uses for this compound, as in pretreatment of lignocellulosic biomass to produce ethanol, another biofuel of interest. In this context, glycerol acid-pretreatment of sugar cane bagasse (SCB) was evaluated in terms of temperature (80-120°C), solid loading (2.5-7.5%), glycerol (85-95%) and acid concentrations (0.5-3%), and reaction time (10-60 min), using a 25-1 factorial design. The cellulose digestibility was further optimized for the variables temperature (120-130°C), acid/SCB mass ratio (5-15%), and time (20-60 min). The optimal conditions were obtained at 130°C temperature, 15% acid/SCB mass ratio, and 57.5 min reaction time, yielding a 68.5% digestibility. Moreover, a considerable amount of ethanol, 0.38 g/g biomass (0.57 g/L·h of productivity), was achieved using Saccharomyces cerevisiae, which also shows the efficacy of this pretreatment. (Figure Presented).
UR - http://www.scopus.com/inward/record.url?scp=85019735006&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.7b00079
DO - 10.1021/acs.iecr.7b00079
M3 - Article
AN - SCOPUS:85019735006
SN - 0888-5885
VL - 56
SP - 3833
EP - 3838
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 14
ER -