Original scientific paper
https://doi.org/10.15255/KUI.2013.023
The Kinetics of Ethanol Fermentation Based on Adsorption Processes
Z. Liu
; College of Chemical Engineering & Pharmaceutics, Henan University of Science and Technology, Luoyang, PR China
X. Li
; College of Chemical Engineering & Pharmaceutics, Henan University of Science and Technology, Luoyang, PR China
Abstract
Currently, almost all ethanol fermentation kinetic models are based on the Monod equation. Such models belong to empirical models, hence are not suitable for the optimization and expansion of real processes. In this work, a new ethanol fermentation kinetic model, in which all parameters had definite physical meaning, was established based on the adsorption mechanism. Through batch fermentation experiment with different initial glucose concentrations and comparison with existing model, this model has the advantage of high precision and few parameters. It also possessed obvious regulation in the model parameter that, with the increase in initial glucose concentration, the maximum specific growth rate µmax and adsorption equilibrium constant KS of glucose decreased and adsorption equilibrium constant KP of ethanol increased. This model provides a new perspec tive for kinetics research of fermentation.
Keywords
Fermentation; biofuel; kinetics; biochemical engineeringy
Hrčak ID:
123794
URI
Publication date:
1.7.2014.
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