Simulation of ethanol production processes based on enzymatic hydrolysis of lignocellulosic materials using ASPEN PLUS

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T1 - Simulation of ethanol production processes based on enzymatic hydrolysis of lignocellulosic materials using ASPEN PLUS

AU - Galbe, Mats

AU - Zacchi, Guido

PY - 1992

Y1 - 1992

N2 - The process simulator ASPEN PLUS was used for simulation of an ethanol production process based on enzymatic hydrolysis of lignocellulosic materials. The effect of water recycling, necessary to reduce the amount of waste water and to increase the ethanol concentration in the feed to the distillation, was investigated. For a process based on 20 t/h raw material, the amount of waste water can be reduced from 70.7 t/h, without recycling, to 7.1 t/h. Furthermore, the ethanol concentration in the distillation feed increased from 2.5 to 10%. The concentration of byproducts and possible inhibitors increased by a factor of 20-40 in the hydrolysis and fermentation steps. This gives new conditions for future hydrolysis and fermentation experiments.

AB - The process simulator ASPEN PLUS was used for simulation of an ethanol production process based on enzymatic hydrolysis of lignocellulosic materials. The effect of water recycling, necessary to reduce the amount of waste water and to increase the ethanol concentration in the feed to the distillation, was investigated. For a process based on 20 t/h raw material, the amount of waste water can be reduced from 70.7 t/h, without recycling, to 7.1 t/h. Furthermore, the ethanol concentration in the distillation feed increased from 2.5 to 10%. The concentration of byproducts and possible inhibitors increased by a factor of 20-40 in the hydrolysis and fermentation steps. This gives new conditions for future hydrolysis and fermentation experiments.

KW - PROCESS SIMULATION

KW - ASPEN PLUS

KW - FLOWSHEETING

KW - RECYCLING STREAMS

KW - ETHANOL

U2 - 10.1007/BF02920536

DO - 10.1007/BF02920536

M3 - Article

VL - 34-5

SP - 93

EP - 104

JO - Applied Biochemistry and Biotechnology - Part A Enzyme Engineering and Biotechnology

JF - Applied Biochemistry and Biotechnology - Part A Enzyme Engineering and Biotechnology

SN - 1559-0291

ER -