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 µ_max and adsorption equilibrium constant K_S of glucose decreased and adsorption equilibrium constant K_P 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

https://hrcak.srce.hr/123794

Publication date:

1.7.2014.

Article data in other languages: croatian

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