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- W4361765551 abstract "Cellulose hydrolysis is a key step in lignocellulosic ethanol production. At present, commercial production of lignocellulosic ethanol is limiteddue to the long hydrolysis times and requirement of large quantity of expensive enzymes. Therefore, reduction of the enzyme consumption as wellas hydrolysis time is crucial and model based optimisation methods can be used for the same.A semi-mechanistic model with cellobiose, glucose,and xylose inhibition with Arrhenius based relationship between temperature and kinetic parameters and thermal deactivation of enzymes was usedfor the present study. Optimal control problem with temperature as control variable was formulated after considering two different objectivefunctions. For the objective of glucose concentration maximisation at final batch time, the benefit of implementing optimal control increased withreducing batch times. For the batch time of 24 hours, the final glucose concentration increased by 3.2%. For the objective of batch timeminimisation, the reduction of batch time was 5.8% and it was observed for a target glucose concentration of 45 g/kg of cellulose. The use ofoptimal control can reduce the enzyme requirement up to 77.8% of endoglucanase and exoglucanase for glucose maximisation and 22.2% for batchtime minimisation. The above results show the usefulness of optimal temperature control in increasing the glucose concentration, and reducing thebatch time without increasing the enzyme used." @default.
- W4361765551 created "2023-04-04" @default.
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- W4361765551 date "2016-12-22" @default.
- W4361765551 modified "2023-09-27" @default.
- W4361765551 title "Optimal control of enzymatic hydrolysis of lignocellulosic biomass" @default.
- W4361765551 doi "https://doi.org/10.18799/24056529/2016/5/85" @default.
- W4361765551 hasPublicationYear "2016" @default.
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