TY - JOUR
T1 - Subcritical Water Process for Reducing Sugar Production from Biomass
T2 - Optimization and Kinetics
AU - Muharja, Maktum
AU - Widjaja, Arief
AU - Darmayanti, Rizki Fitria
AU - Fadhilah, Nur
AU - Airlangga, Bramantyo
AU - Halim, Abdul
AU - Fadilah, Siska Nuri
AU - Arimbawa, I. Made
N1 - Publisher Copyright:
Copyright © 2022 by Authors.
PY - 2022/12
Y1 - 2022/12
N2 - The competitive reactions of lignocellulose hydrolysis and monosaccharide degradation in the subcritical water (SCW) hydrolysis of coconut husk were investigated to optimize the reducing sugar yield. Optimization analysis was performed by response surface methodology (RSM) and kinetics studies. Parameters of process optimization were varied at 130-170 °C for 15-45 min. The reducing sugars were measured using the Dinitro salicylic acid method. The sugar yield increased when the temperature increased from 130 °C to 170 °C. The highest reduction sugar yield of 4.946 g/L was obtained at 183.6 °C for 4.8 min and 23.4 liquid/solid ratio (LSR). Kinetics studies were carried out at temperature variations of 150, 170, and 190 °C and pressures of 60, 80, and 100 bar for 5 to 60 min. The yield of reducing sugar decreased with increasing temperature. The kinetic model 2B is the best method to explain the competitive reaction kinetics of coconut husk hydrolysis. This research is an innovation to increase the reducing sugar to make the process more commercially viable.
AB - The competitive reactions of lignocellulose hydrolysis and monosaccharide degradation in the subcritical water (SCW) hydrolysis of coconut husk were investigated to optimize the reducing sugar yield. Optimization analysis was performed by response surface methodology (RSM) and kinetics studies. Parameters of process optimization were varied at 130-170 °C for 15-45 min. The reducing sugars were measured using the Dinitro salicylic acid method. The sugar yield increased when the temperature increased from 130 °C to 170 °C. The highest reduction sugar yield of 4.946 g/L was obtained at 183.6 °C for 4.8 min and 23.4 liquid/solid ratio (LSR). Kinetics studies were carried out at temperature variations of 150, 170, and 190 °C and pressures of 60, 80, and 100 bar for 5 to 60 min. The yield of reducing sugar decreased with increasing temperature. The kinetic model 2B is the best method to explain the competitive reaction kinetics of coconut husk hydrolysis. This research is an innovation to increase the reducing sugar to make the process more commercially viable.
KW - Coconut Husk
KW - Kinetic Model
KW - Response Surface Methodology
KW - Subcritical water
UR - http://www.scopus.com/inward/record.url?scp=85149809156&partnerID=8YFLogxK
U2 - 10.9767/bcrec.17.4.16527.839-849
DO - 10.9767/bcrec.17.4.16527.839-849
M3 - Article
AN - SCOPUS:85149809156
SN - 1978-2993
VL - 17
SP - 839
EP - 849
JO - Bulletin of Chemical Reaction Engineering and Catalysis
JF - Bulletin of Chemical Reaction Engineering and Catalysis
IS - 4
ER -