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Hydrolysis of corn stover sugar fermentation kinetics of ethanol

Author: DengXue
Tutor: WangChengXue
School: Changchun University of
Course: Biochemical Engineering
Keywords: Fuel ethanol Pentose Hexose Kinetic model Parameter Estimation
CLC: TQ920.1
Type: Master's thesis
Year: 2010
Downloads: 181
Quote: 0
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Abstract


Stalks are abundant renewable resources, mainly composed of cellulose , hemicellulose and lignin , after pretreatment , hydrolysis and fermentation alcohol can be generated . Straw hydrolysis pentose and hexose fermentation alcohol is the solution to alcohol straw biotransformation effective way . This article explores the pentose and hexose fermentation process parameters measurement method , the fermentation process dynamics modeling and solving the kinetic parameters . In this paper, straw hydrolyzed pentose and hexose alcohol fermentation kinetics were studied , first explored Candida and Candida yeast co-fermentation of ethanol and alcohol parameters and process conditions , the results showed that bacteria growth and alcohol production with prolonged fermentation time change of xylose and glucose fermentation ethanol production process maximum 67.94g / L. Fermentation process parameter measurement methods , through the analysis of alcohol fermentation process route , down to its cell growth and ethanol fermentation of two key processes , respectively, for the dynamic analysis , make a reasonable simplification and abstraction , proposed modeling assumptions and the establishment of dynamic model . The use of genetic algorithm based on MATLAB toolbox developed a kinetic parameter identification procedures , and with the traditional parameter estimation algorithm are compared . Research pentose and hexose fermentation production of fuel ethanol synchronization optimum conditions , the final straw for synchronous saccharification fermentation liquid in hexose and pentose provide technical support for the production of fuel ethanol .

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CLC: > Industrial Technology > Chemical Industry > Other chemical industries > Fermentation industry > General issues > Basic theory
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